Sigma Software

Are you passionate about building scalable, reliable data systems that power real-world solutions? We are looking for a Senior Data Engineer to join our team and work remotely from Europe, Ukraine, or LATAM.

At Sigma Software, we partner with innovative companies to deliver cutting-edge technology solutions. This role offers the opportunity to design and operate a canonical data platform that integrates diverse external data sources, ensuring high quality and flexibility.

Why join us? You’ll work with modern technologies, collaborate with talented professionals across multiple regions, and have the freedom to experiment and innovate while contributing to impactful projects in the AdTech domain.

Customer

Our client is a fast-growing AdTech company focused on solving real-world challenges in digital advertising and data-driven marketing. They specialize in building highly resilient and scalable systems that encourage experimentation and innovation. Their data platform is designed to be both powerful and flexible, enabling engineers to introduce new ideas and leverage the latest technologies to optimize advertising performance and audience insights.

Project

The project involves developing and maintaining a canonical data platform that integrates multiple external data sources. It supports both full data loads and incremental updates, ensures high data quality, and leverages AI-assisted tools for monitoring and issue detection.

Key Technologies: Java, Scala, SQL, GCP Dataflow, REST APIs, AI-assisted tools, event-driven architectures

Requirements

• At least 5 years of experience as a Data Engineer or Backend/Data Engineer
• Strong production experience with Scala
• Proven experience integrating external systems via REST APIs (pagination, rate limiting, token-based authentication)
• Strong data modelling skills with structured, relational data
• Solid SQL knowledge
• Experience with GCP Dataflow
• Experience operating data pipelines in production environments
• Strong communication skills and ability to collaborate across teams

• At least an Upper Intermediate level of English

   

WILL BE A PLUS:

• Experience with event-driven architectures or messaging systems
• Designing canonical schemas across multiple data sources

• Experience with LLM (Large Language Models)

   

Personal Profile

• Proactive and detail-oriented
• Thrives in collaborative environments
• Enjoys solving complex integration challenges
• Comfortable experimenting with new technologies
• Committed to improving data systems

Responsibilities

• Design, build, and maintain reliable data pipelines to ingest and process data from external systems
• Implement integrations using Java or Scala, ensuring scalability and resilience
• Handle both full data loads and incremental updates efficiently
• Collaborate with engineering and product teams to align on integration and data needs
• Develop and maintain a unified internal data model
• Ensure data quality, detect and resolve incorrect or incomplete data
• Utilize AI-assisted tools to improve data quality and operational efficiency
• Monitor and optimize data pipelines for production readiness

Are you passionate about building cutting-edge, AI-ready data platforms from the ground up? We are looking for a Senior Data Engineer to join our Data Engineering Team and lead high-impact, greenfield initiatives.

You will work on building modern cloud-native data platforms, migrating on-premises legacy systems to the cloud, and laying the architectural foundation for AI-ready data infrastructure.

In this role, you will collaborate closely with Machine Learning, Data Science, and Product teams, serving as a key technical contributor and thought leader. You will also drive R&D efforts around agentic AI architectures, event-driven systems, and LLM-ready data pipelines — turning architectural concepts into production-grade solutions.

Responsibilities:

• Design and build scalable, cloud-native data platforms from greenfield to production
• Implement near-real-time ingestion pipelines using event-driven patterns
• Define and enforce platform standards, including Data Lake / Lakehouse principles, medallion architecture, and data contracts
• Refactor and optimise existing Spark and PySpark scripts for performance and maintainability
• Introduce best practices for code quality, testing, and CI/CD across data pipelines
• Drive adoption of AI tooling and agentic workflows within the data engineering team
• Ensure data quality, observability, and reliability across all pipelines and platforms

• Develop self-service tooling and microservices to simplify platform usage for other teams

   

Requirements:

• 5+ years of professional experience in Data Engineering
• Strong Python and SQL development skills for pipeline development and optimisation
• Proficiency in Apache Spark / PySpark, including query optimisation and performance tuning
• Hands-on experience with Databricks (preferred) or Snowflake
• Experience with at least one major cloud provider: Azure (preferred), AWS, or GCP
• Experience with stream processing technologies (Kafka, Spark Structured Streaming)
• Solid understanding of ETL/ELT patterns, data modelling (dimensional, Data Vault), and data warehousing
• Experience with orchestration tools (Apache Airflow, Azure Data Factory, or equivalent)
• Knowledge of Infrastructure as Code (Terraform or equivalent)
• Understanding of production-grade system requirements: reliability, scalability, observability, and performance

• Upper-Intermediate English level

   

Will be a plus

• Familiarity with RAG pipeline design and LLM integration patterns
• Knowledge of data governance frameworks and tools (Unity Catalog, Apache Atlas, or similar)
• Experience with dbt for data transformation and modelling

• Familiarity with MLflow, Feature Stores, or ML platform integration

   

Personal profile

• Self-driven and proactive in identifying improvements
• Comfortable working in a fast-paced, innovative environment
• Strong problem-solving mindset with attention to detail
• Open to experimenting with emerging technologies and approaches

_____________________________________________________________

Ти захоплюєшся створенням передових, AI-ready дата-платформ з нуля? Ми шукаємо Senior Data Engineer, щоб ти приєднався(-лася) до нашої команди Data Engineering та очолив(-ла) масштабні, інноваційні ініціативи з нуля.

Ти працюватимеш над побудовою сучасних хмарних дата-платформ, міграцією локальних (on-premises) легасі-систем у хмару та створенням архітектурного фундаменту для AI-ready дата-інфраструктури.

У цій ролі ти тісно співпрацюватимеш з командами Machine Learning, Data Science та Product, виступаючи ключовим технічним експертом та лідером думок. Також ти вестимеш R&D-роботи над agentic AI-архітектурами, подієво-орієнтованими системами та LLM-ready дата-пайплайнами — перетворюючи архітектурні концепції на готові до продакшену рішення.

Обовʼязки:

• Проєктувати та створювати масштабовані, хмарні дата-платформи від концепції до продакшену
• Реалізовувати пайплайни для майже реального часу (near-real-time ingestion) з використанням подієво-орієнтованих патернів
• Визначати та впроваджувати стандарти платформи, включно з принципами Data Lake / Lakehouse, медальйонною архітектурою та дата-контрактами
• Рефакторити та оптимізувати наявні скрипти на Spark та PySpark для підвищення продуктивності та зручності підтримки
• Запроваджувати найкращі практики якості коду, тестування та CI/CD для дата-пайплайнів
• Сприяти впровадженню AI-інструментів та agentic-підходів у команді дата-інженерів
• Забезпечувати якість, спостережуваність (observability) та надійність усіх пайплайнів і платформ

• Розробляти self-service інструменти та мікросервіси, що спрощують використання платформи іншими командами

   

Вимоги:

• 5+ років комерційного досвіду в Data Engineering
• Сильні навички розробки на Python та SQL для створення та оптимізації пайплайнів
• Впевнене володіння Apache Spark / PySpark, включно з оптимізацією запитів та налаштуванням продуктивності
• Практичний досвід роботи з Databricks (бажано) або Snowflake
• Досвід роботи з принаймні одним великим хмарним провайдером: Azure (бажано), AWS або GCP
• Досвід роботи з технологіями потокової обробки даних (Kafka, Spark Structured Streaming)
• Глибоке розуміння ETL/ELT-патернів, моделювання даних (dimensional, Data Vault) та побудови дата-складів
• Досвід роботи з інструментами оркестрації (Apache Airflow, Azure Data Factory або аналогами)
• Знання Infrastructure as Code (Terraform або аналогів)
• Розуміння вимог до продакшен-рішень: надійність, масштабованість, спостережуваність, продуктивність

• Рівень англійської — Upper-Intermediate

   

Буде плюсом:

• Знайомство з проєктуванням RAG-пайплайнів та патернами інтеграції LLM
• Знання фреймворків і інструментів для data governance (Unity Catalog, Apache Atlas або подібних)
• Досвід роботи з dbt для трансформації та моделювання даних

• Знайомство з MLflow, Feature Stores або інтеграцією з ML-платформами

   

Особистий профіль:

• Самомотивованість та проактивність у пошуку покращень
• Комфортна робота у швидкому та інноваційному середовищі
• Сильне аналітичне мислення та увага до деталей
• Відкритість до експериментів з новими технологіями та підходами

Are you passionate about transforming complex datasets into actionable insights that shape strategic decisions? This Senior Data Analyst role offers the chance to work on cutting-edge pricing optimization projects for global retail brands, leveraging advanced analytics to drive measurable business impact.

We at Sigma Software are looking for a Senior Data Analyst to join our Data Analytics and Pricing Optimization team. The role is senior-level, full-time, and based in Ukraine, Europe, with flexibility to collaborate with international teams.

Why join us? You’ll work alongside Data Scientists on innovative pricing experiments, contribute to projects that influence market positioning worldwide, and be part of a company that values innovation, global reach, and professional growth.
CUSTOMER
Our customer is a leading retail technology company specializing in pricing optimization software. They partner with global retailers to enhance profitability and competitiveness through data-driven strategies and advanced pricing models. Known for their innovative approach, they deliver solutions that combine business intelligence with cutting-edge algorithms to maximize value for clients.
PROJECT
The project involves implementing and optimizing a sophisticated pricing platform for large-scale retail operations. You’ll work on aligning platform capabilities with client needs, designing pricing experiments, and ensuring adoption through training and support.

Key Technologies: SQL, Python/R, Power BI, Tableau, Looker, Revionics, DemandTec

Job Description

• Analyze business and pricing processes to identify optimization opportunities
• Conduct discovery sessions to understand client needs and processes
• Recommend improvements based on best practices
• Align platform capabilities with client requirements
• Design and validate pricing experiments with Data Scientists
• Configure pricing platform for optimal client setup
• Deliver user training and ongoing support
• Monitor pricing performance and share insights
• Drive user adoption and recommend strategies to maximize platform value

Qualifications

• 5+ years in pricing analytics, data analysis, or related field
• Strong analytical and problem-solving skills
• Proficiency in Excel/Google Sheets and BI tools (Power BI, Tableau, Looker)
• Advanced SQL skills and proficiency in Python or R
• Understanding of data structures, modeling, and warehousing
• Experience in data cleaning and quality assurance
• Proven delivery of impactful analytics solutions
• Knowledge of market analysis, customer segmentation, and psychological pricing
• Excellent communication and stakeholder management skills
• Upper-Intermediate English or higher

WILL BE A PLUS

• Pricing strategy experience (cost-plus, value-based, competitive models)
• Dynamic pricing and price elasticity analysis
• AI/ML applications in pricing
• Familiarity with pricing intelligence tools
• Experience with retail pricing software
• Knowledge of pricing-related legal restrictions

We are seeking a Test Engineer to join our big team and be a primary point of contact with the Customer on quality assurance matters. As a member of our team, you will have the opportunity to work with various products that share common functionalities. You will also develop a cohesive testing strategy that meets Customer needs and ensures high-quality results by collaborating closely with the team.

You will have a chance to challenge yourself, grow as a technologist and a professional, and make an incredible impact on the Customer’s products.

CUSTOMER
Our Customer is a leading European supplier of eco-friendly, energy-efficient indoor climate solutions. They aim to provide modern climate control in all types of buildings by using renewable energy sources and the latest technology.

PROJECT
Our project involves the development of smart home climate solutions for a client operating in the heating, ventilation, and air conditioning (HVAC) sector. Together with the client, we provide smart climate solutions featuring wireless connectivity and intelligent control for any type of property, including apartment blocks, industrial buildings, hotels, or country houses, to help reduce energy consumption for our client’s customers and society at large.

The team is responsible for developing and maintaining universal electronics and firmware platforms.

The mission of the project is to deliver scalable, reliable, and secure solutions that accelerate time-to-market for new products while supporting the company’s global vision of transitioning to energy-efficient and sustainable technologies.

REQUIREMENTS

• 2+ years of experience as a Manual QA Engineer (preferably in embedded or firmware projects)
• Solid knowledge of testing methodologies and ability to write test cases and reports
• Experience with bug tracking and test management systems
• Experience with Unix platforms
• Experience in Network (understanding of TCP/UDP)
• Experience with sniffers and debugging tools (ex. Charles, Wireshark)
• Experience in API testing (Postman, Bruno)
• Upper-Intermediate level of English

WOULD BE A PLUS

• Basic hardware skills (flashing, setup, and diagnostics)

RESPONSIBILITIES

• Perform functional, integration, and regression testing of embedded software
• Create and maintain test documentation (checklists, test cases, and bug reports)
• Participate in release planning and synchronization meetings with the development team
• Collaborate closely with developers, architects, and other QA engineers
• Identify, log, and track defects until resolution
• Contribute to the overall product and process quality according to company standards

Ми шукаємо Test Engineer до нашої великої команди, де ти станеш основною контактною особою для замовника з питань забезпечення якості ПЗ. Ти працюватимеш із кількома продуктами, що мають спільні функціональні можливості, та разом із командою розробиш цілісну стратегію тестування, яка відповідатиме потребам клієнта й забезпечуватиме високу якість розроблених рішень.

У тебе буде шанс випробувати себе, зростати як технолог і професіонал, а також зробити неймовірний вплив на продукти клієнта.

КЛІЄНТ
Наш клієнт є провідним європейським постачальником екологічних, енергоефективних рішень для клімат-контролю в приміщеннях. Вони прагнуть забезпечити сучасний кліматичний контроль у всіх типах будівель за допомогою відновлюваних джерел енергії та новітніх технологій.

ПРОЕКТ
Наш проєкт передбачає розробку інтелектуальних рішень для клімат-контролю в будинках. Ми співпрацюємо з клієнтом, що працює в галузі опалення, вентиляції та кондиціонування повітря (HVAC). Спільно з клієнтом ми пропонуємо інтелектуальні кліматичні рішення з бездротовим підключенням та інтелектуальним управлінням для будь-якого типу нерухомості, будь то багатоквартирні будинки, промислові будівлі, готелі або заміські будинки, щоб допомогти зменшити споживання енергії для замовників нашого клієнта та суспільства в цілому.

Команда відповідає за розробку та підтримку універсальних електронних і програмних платформ.

Ціль проєкту полягає в наданні масштабованих, надійних і безпечних рішень, які прискорюють вихід нових продуктів на ринок, підтримуючи глобальну концепцію компанії щодо переходу на енергоефективні та стійкі технології.

ВИМОГИ

• 2+ роки досвіду як Manual QA Engineer (бажано в проєктах з вбудованим програмним забезпеченням або прошивкою) 
• Добре знання методологій тестування та вміння писати тестові випадки й звіти
• Досвід роботи з системами відстеження помилок та управління процесом тестування
• Досвід роботи з Unix-платформами
• Базове розуміння мереж (TCP/UDP)
• Досвід роботи зі сніферами та інструментами налагодження (наприклад, Charles, Wireshark)
• Досвід тестування API (Postman, Bruno) 
• Володіння англійською мовою на рівні Upper-Intermediate

БУДЕ ПЛЮСОМ

• Базові навички роботи з апаратним забезпеченням (прошивання, налаштування та діагностика)

ОБОВ’ЯЗКИ

• Виконувати функціональне, інтеграційне та регресійне тестування вбудованого ПЗ
• Створювати та підтримувати тестову документацію (чеклисти, тестові випадки, баг-репорти)
• Брати участь у плануванні релізів і синхронізаційних зустрічах із командою розробки
• Тісно співпрацювати з розробниками, архітекторами та іншими QA-інженерами
• Виявляти, реєструвати та відстежувати дефекти до їхнього усунення
• Сприяти загальній якості продукту й процесів відповідно до стандартів компанії

If you want to continue your career in an international IT company and work on real IoT products that make everyday environments smarter, more connected, and more energy-efficient — we have the right opportunity for you. We at Sigma Software are growing our Embedded team and looking for an experienced C++ Developer with strong Qt/QML expertise to contribute to the development of smart climate solutions in the HVAC domain.

At Sigma Software, you will be part of a multinational team with a strong engineering culture, access to professional growth opportunities, and the chance to work on innovative IoT-based solutions that have real impact on comfort and energy efficiency for end users.

Якщо ти хочеш розвиватися в міжнародній IT-компанії та працювати над реальними IoT-продуктами, що змінюють звичний простір навколо нас — роблять його розумнішим, зручнішим і ощаднішим — ця можливість для тебе. Ми в Sigma Software розширюємо Embedded-команду і шукаємо досвідченого C++ Developer з експертизою в Qt/QML для розробки рішень розумного клімат-контролю у сфері HVAC.

У Sigma Software ти працюватимеш у мультинаціональній команді з сильною інженерною культурою, матимеш можливості для професійного зростання та шанс впливати на реальний комфорт і енергоефективність кінцевих користувачів через інноваційні IoT-рішення.

Project

The project is focused on the development of smart home and building climate control solutions, with a particular emphasis on wireless connectivity, intelligent control, and energy-efficient operation. The engineer will work on connected embedded devices and systems that manage heating, ventilation, and air conditioning for different types of properties — from apartments and private houses to hotels, industrial buildings, and large residential complexes.

You will have an opportunity to work on innovative IoT-based HVAC solutions that help improve comfort, optimize climate control, and reduce energy consumption for customers and society at large.

Проєкт

Проєкт спрямований на розробку рішень для розумного клімат-контролю в будинках і комерційних будівлях, з особливим акцентом на бездротовому підключенні, інтелектуальному управлінні та енергоефективній роботі. Інженер працюватиме над embedded-пристроями і системами, що керують опаленням, вентиляцією та кондиціонуванням для різних типів об’єктів — від квартир і приватних будинків до готелів, промислових будівель і великих житлових комплексів.

Ти матимеш можливість працювати над інноваційними IoT-рішеннями для HVAC, що допомагають покращити комфорт, оптимізувати клімат-контроль і знизити енергоспоживання для клієнтів і суспільства загалом.

Requirements

• At least 5 years of experience with C/C++
• Strong knowledge of Qt
• Experience with QML
• At least Upper-Intermediate level of English

Would be a plus

• Experience with Figma
• Linux knowledge
• Experience developing UI applications for embedded devices
• Understanding of UI/UX principles

Вимоги

• Щонайменше 5 років досвіду роботи з C/C++
• Глибокі знання Qt
• Досвід роботи з QML
• Рівень англійської мови не нижче Upper-Intermediate

Буде перевагою

• Досвід роботи з Figma
• Знання Linux
• Досвід розробки UI-застосунків для embedded-пристроїв
• Розуміння принципів UI/UX

Responsibilities

• Design and implement software components, modules, classes, and UI functionality
• Develop and maintain user interfaces for smart climate control devices using Qt and QML
• Code, debug, document, and maintain portions of software
• Perform different types of testing
• Participate in estimation and planning sessions
• Collaborate with UI/UX designers to implement and refine user interface solutions
• Contribute to the development of technical project documentation and user documentation
• Provide assistance to test engineers and support personnel in solving technical issues of software installation and its operation
• Participate in conference calls and face-to-face meetings with the Customer and Customer partners
• Comply with the best engineering practices, technical standards, and quality criteria set forth on the project
• Report status and progress according to the project and company demands
• Spot current deficiencies in the development process, adopted procedures, and engineering practices, environment configurations, etc., and suggest improvements
• Escalate technical issues to the Team Lead and Project Manager
• Improve your qualification within the areas of expertise at various training courses, seminars, and/or other educational organizations

Обов’язки

• Проєктувати та реалізовувати програмні компоненти, модулі, класи й UI-функціональність
• Розробляти та підтримувати інтерфейси для пристроїв розумного клімат-контролю з використанням Qt і QML
• Писати код, виконувати налагодження, документувати та підтримувати частини програмного забезпечення
• Виконувати різні типи тестування
• Брати участь у сесіях оцінки та планування
• Співпрацювати з UI/UX-дизайнерами для реалізації та вдосконалення інтерфейсних рішень
• Робити внесок у розробку технічної документації проєкту та документації для користувачів
• Надавати допомогу тест-інженерам і фахівцям підтримки у вирішенні технічних питань, пов’язаних із встановленням і роботою програмного забезпечення
• Брати участь у конференц-дзвінках і зустрічах із Замовником і його партнерами
• Дотримуватися найкращих інженерних практик, технічних стандартів і критеріїв якості, встановлених на проєкті
• Звітувати про статус і прогрес відповідно до вимог проєкту та компанії
• Виявляти наявні недоліки в процесі розробки, прийнятих процедурах, інженерних практиках, конфігураціях середовища тощо та пропонувати покращення
• Ескалювати технічні питання до Team Lead і Project Manager
• Підвищувати кваліфікацію у своїх сферах експертизи на різних тренінгах, семінарах та/або в інших освітніх організаціях

Ready to shape the future of logistics technology? We are looking for a Middle/Senior Full Stack Developer to join our distributed team and help build a next-generation e-commerce fulfillment platform. This role offers remote flexibility with the option to work from Kraków, Poland. 

At Sigma Software, we partner with some of Europe’s most innovative companies, delivering solutions that combine cutting-edge technology with business impact. You will work in a collaborative Agile environment, leveraging modern frameworks and AI-assisted tools to create high-performance solutions. 

Why join us? You’ll be part of a long-term partnership, working on high-impact projects with access to advanced AI tools, cloud technologies, and a supportive team culture. 

CUSTOMER 

Our customer is one of Europe’s leading logistics providers, headquartered in Germany. Specializing in integrated supply chain systems and data-driven logistics optimization, they operate across multiple European markets, offering advanced warehousing, transportation, and fulfillment services. Sigma Software has been collaborating with them since 2017, delivering over 10 active projects that drive innovation and efficiency. 

PROJECT

You will contribute to the development of a next-generation e-commerce fulfillment platform designed to automate and optimize order processing, inventory management, and delivery tracking. The solution leverages modern web technologies and AI-assisted development tools to ensure scalability and efficiency. This is a chance to work on a high-impact product in a collaborative, Agile environment. 

Job Description

• Design, develop, and maintain robust software applications using TypeScript/JavaScript, Node.js, NestJS, and React.js 
• Implement new functionality from scratch, including role-based access control services, API integration services, and custom endpoints 
• Work in an AI-augmented development environment, leveraging tools like Claude Code, Cursor, and Microsoft Copilot 
• Collaborate closely with stakeholders to define, design, and deliver new features 
• Ensure code quality, security, and performance through critical evaluation of AI-generated outputs 
• Participate in SCRUM ceremonies and contribute to team planning, estimation, and retrospectives 

Qualifications

• 3+ years of commercial development experience with a focus on TypeScript/JavaScript 
• Proven expertise in Node.js, NestJS, React.js, Next.js, and REST API development 
• Experience with AI-assisted coding tools (Claude Code, Cursor, Microsoft Copilot, or similar) 
• Ability to write clear prompts for code generation and refactoring 
• Skills in evaluating AI-generated code for security and performance implications 
• Experience translating AI-generated specifications into implementation tasks 
• Proficiency in debugging and validating AI-generated code 
• Familiarity with AI-driven development frameworks (BMAD, Superpowers, GSD, spec-kit, or equivalent) 
• Experience with any cloud provider (preferably Azure) 
• Experience working in SCRUM teams 
• Fluent English 

WILL BE A PLUS

• Experience integrating and working with design systems (Tailwind, Storybook) 
• Proven experience with AI-augmented development (pet projects, certifications) 
• Participation in AI-assisted requirements breakdown and task decomposition using frameworks like spec-kit or BMAD 

PERSONAL PROFILE

• Strong communication, multitasking, and problem-solving skills 
• Analytical thinking and sound technical judgment 
• Quick grasp of existing digital products and architectures 

Sigma Software is looking for a Project Manager to join our Embedded & IT Support business unit. We are experiencing in the following domain areas:

— Smart Home & Smart City
— Connectivity & IoT
— Embedded systems for (Consumer Electronics, Industrial Automation, Energy, HVAC)
— Technical support
— DevOps services
— Atlassian partner products, integrations, and migrations

Why join us? In this role, you will be driving both embedded and technical support initiatives, focusing on high-class delivery and working in a multi-cultural environment in a team of real professionals.

Requirements

• At least 4 years of commercial experience in project management
• Strong knowledge of project management processes, methodologies, and tools
• Proven risk management and strong leadership skills
• Excellent negotiation and problem-solving abilities
• Experience managing cross-cultural teams
• Hands-on experience driving the adoption of AI practices across projects
• Excellent communication and presentation skills to communicate effectively with customers and project teams
• Upper-Intermediate English or higher
• Experience in embedded projects will be a plus

Responsibilities

• Plan, manage, and monitor project execution, ensuring on-time delivery within budget
• Act as the customer’s trusted partner, developing relationships and identifying additional service opportunities and business insights
• Tailor project delivery models to match customer needs and apply best project management practices
• Conduct portfolio risk analysis, proactively manage risks, and communicate effectively with stakeholders
• Be a people manager, execute the company’s people management practices, including hiring, onboarding, performance evaluation, and retention strategies
• Implement best practices and tools for project execution and management
• Drive continuous improvement through lessons learned and project achievements

Are you ready to kick-start your career in a project that blends cutting-edge technology with real-world impact? We are looking for a Junior Full Stack Developer to join our remote team and help build a next-generation e-commerce fulfillment platform for one of Europe’s largest logistics companies.

At Sigma Software, we value curiosity, collaboration, and continuous learning. You’ll work in a supportive environment where innovation is encouraged, and your ideas matter. This is a great opportunity to grow your skills in both back-end and front-end development while exploring AI-assisted coding tools in a production setting.

Why join us? You’ll be part of a global team delivering impactful solutions, using modern technologies, and shaping the future of logistics.

Customer

Our client is one of Europe’s leading logistics providers, headquartered in Germany, specializing in integrated supply chain systems and data-driven logistics optimization. Operating across multiple European markets, they offer advanced warehousing, transportation, and fulfillment services. Sigma Software has been collaborating with them since 2017, delivering over 10 active projects that drive innovation and efficiency.

Project

You will contribute to the development of a next-generation e-commerce fulfillment platform designed to automate and optimize order processing, inventory management, and delivery tracking. The solution leverages modern web technologies and AI-assisted development tools to ensure scalability and efficiency. This is a chance to work on a high-impact product in a collaborative, Agile environment.

Requirements

• At least 1.5 years of commercial experience in software development with a focus on the TypeScript/JavaScript stack
• Proven experience with Node.js, React.js, and REST API development
• Familiarity with AI-assisted coding tools (Claude Code, Cursor, Microsoft Copilot, or similar)
• Ability to write effective prompts for AI-generated code and refactoring
• Experience preparing code for AI-assisted review and translating AI-generated specifications into implementation tasks
• Strong debugging and validation skills for AI-generated code
• Excellent communication and multitasking abilities
• Strong problem-solving and decision-making skills with a results-oriented mindset
• Analytical thinking and solid technical judgment
• Ability to quickly understand existing digital products and architectures
• Experience working in SCRUM teams
• Fluent English

WILL BE A PLUS

• Experience integrating and working with design systems (Tailwind, Storybook)
• Proven experience with AI-augmented development (pet projects, certifications)
• Experience in AI-assisted requirements breakdown and task decomposition (e.g., spec-kit, BMAD)

Personal Profile

• Collaborative mindset and willingness to learn
• Interest in backend development with readiness to work across the full stack
• Passion for quality, clean code, and continuous improvement

• Adaptability to work in a dynamic, AI-driven development environment

   

  Responsibilities

• Develop and maintain robust software applications using TypeScript/JavaScript, Node.js, Nest.js, and React
• Implement new functionality from scratch, such as role-based access control services, API integrations, and endpoint development, under the guidance of Senior Developers
• Collaborate closely with stakeholders to define, design, and deliver new features
• Work in an AI-augmented development environment, leveraging tools like Claude Code, Cursor, and Microsoft Copilot
• Participate in code reviews, ensuring code quality and maintainability
• Contribute to the continuous improvement of development processes and team collaboration practices
• Follow Agile/SCRUM methodologies and actively participate in ceremonies

Шукаємо Senior Go Backend Engineer для приєднання до команди, яка розробляє технологічні рішення для MilTech-напряму. Ви будете працювати над створенням безпечних, масштабованих та високопродуктивних бекенд-систем для продуктів, що працюють із критично важливими даними та використовуються в середовищах із підвищеними вимогами до надійності, безпеки та продуктивності.

Роль передбачає проєктування розподілених архітектур, розробку захищених сервісів та участь у побудові систем, які мають безпосередній вплив на оборонні та безпекові технології.

Вимоги

• 5+ років комерційного досвіду розробки програмного забезпечення
• Впевнений практичний досвід розробки на Go (Golang)
• Досвід створення бекенд-сервісів, API, інтеграцій та мікросервісної архітектури
• Глибоке розуміння принципів побудови розподілених систем та високонавантажених архітектур
• Глибокі знання та практичний досвід у сфері безпечної розробки бекенд-систем, зокрема:
  • OAuth2 / OpenID Connect (OIDC)
  • Автентифікація та авторизація на основі JWT
  • RBAC та моделі контролю доступу
  • OWASP ASVS
  • NIST 800-53 або аналогічні корпоративні фреймворки безпеки
• Досвід роботи з PostgreSQL або MS SQL
• Досвід роботи з Docker, Linux та CI/CD-пайплайнами
• Високий рівень самостійності, відповідальності та навичок вирішення складних технічних задач
• Досвід роботи з чутливими даними, захищеними системами або security-critical продуктами буде значною перевагою

Обов'язки

• Проєктування, розробка та підтримка безпечних бекенд-сервісів на Go
• Побудова та розвиток масштабованих мікросервісних і розподілених систем
• Реалізація механізмів автентифікації, авторизації та захисту даних
• Участь у формуванні архітектурних рішень та розвитку платформи
• Забезпечення високої продуктивності, надійності та масштабованості систем
• Співпраця з DevOps, Security та іншими інженерними командами
• Покращення процесів розробки, тестування та CI/CD
• Виявлення та усунення ризиків безпеки на етапах проєктування та реалізації рішень

Для кандидатів, яким важлива місія продукту, це можливість долучитися до розробки технологій, що використовуються в оборонній сфері та допомагають вирішувати реальні завдання безпеки й захисту.

We’re seeking motivated, sharp-minded professionals to join our team as a Cyber Security Analyst/Researcher. In this role, you’ll collaborate directly with clients, examine traffic patterns, and play a key part in identifying and neutralizing harmful bots and online threats.

Customer

Our customer is a global provider of comprehensive security solutions, protecting individuals, organizations, and communities from a wide range of risks, particularly in the digital space. Their enterprise-focused products specialize in bot defense and invalid traffic detection, helping clients safeguard critical systems and maintain operational integrity.

Project

The project focuses on real-time threat detection and bot mitigation for enterprise-scale clients. Cyber Security Analystes collaborate directly with customers, leveraging advanced analytics platforms to identify malicious traffic patterns and neutralize online threats. This dynamic environment requires both technical expertise and strong communication skills.

Requirements

• At least 4 years of experience in data analysis in cybersecurity or fraud detection domains, including experience with logs and dashboards
• Strong SQL skills: complex queries, aggregations, GROUP BY, ORDER BY, filters, window functions (e.g., RANK()), CTEs, and subqueries
• Technical understanding of web technologies and client–server architecture (APIs, HTTP, basic HTML/JavaScript)
• Experience with SIEM systems (experience with the Elastic Stack would be an advantage)
• Strong troubleshooting and problem-solving skills
• Experience in customer support, including direct communication with clients; professionalism and politeness are essential
• Strong English communication skills

Would be a plus

• Experience in a Cybersecurity Analyst/Researcher role, ideally supporting external customers in threat detection and response
• Experience in web security and security research: web application security, bot management, fraud detection
• Experience with research methodologies (hypothesis testing, verification and research plan)
• Python and JavaScript knowledge
• Experience with BigQuery/Snowflake
• Proficiency in building dashboards using BI tools (Snowflake, Looker, Kibana, JSM)

Personal Profile

• High level of responsibility and ownership
• Ability to work independently with minimal supervision
• Analytical mindset with a data-driven approach to decision-making
• Genuine interest in data, cybersecurity, and delivering high-quality customer service
• Proactive communicator who keeps stakeholders informed without being prompted

Responsibilities

• Investigate advanced and persistent attacks using data analysis and data science tools
• Analyze customers’ web traffic to detect unidentified threats and reduce false positives using Elasticsearch and BigQuery
• Research, design, and continuously enhance detection mechanisms to stay ahead of evolving threats
• Provide real-time technical support to global customers, delivering professional and timely incident responses
• Produce clear, insightful incident reports
• Collaborate cross-functionally with R&D and Research teams to optimize the company’s detection and mitigation capabilities
• Design, plan, and implement internal automation projects to improve team efficiency
• Work in a shift-based schedule, including weekends

Hiring process: 

• Stage 0: Recruitment pre-screen (30 minutes)
• Stage 1: Technical interview (1.5 hours)
• Stage 2: Test task
• Stage 3: Technical client interview (1 hour)
• Stage 4: Second technical client interview (1 hour)
• Stage 5: Soft skills interview on the client side (30 minutes)
• Stage 6: Final interview (optional)

Are you an experienced technical leader ready to shape the future of scalable AdTech platforms? We are seeking a Principal Engineer to drive architectural transformation and lead high-impact projects for a Sweden-based industry innovator.

This is a senior-level role with full remote flexibility across Europe. At Sigma Software, we partner with global leaders to deliver cutting-edge technology solutions that automate and optimize revenue-focused operations. You will work on strategic initiatives, collaborate with cross-functional teams, and influence technical direction in a fast-paced, evolving domain.

Why join us? You’ll have the opportunity to work on globally recognized platforms, contribute to architectural innovation, and enjoy a supportive culture with challenging projects.
 

CUSTOMER

Our Customer is a Swedish AdTech company that transforms the way publishers and advertisers interact. They provide state-of-the-art self-serve advertising platforms that enable seamless, direct transactions between advertisers and some of the world’s largest publishers. Their mission is to make advertising more accessible, automated, and efficient through innovative technology. Together, we serve globally recognized clients, including TripAdvisor, Bloomberg, The Washington Post, Opera, Dow Jones, etc. 

PROJECT

The project represents a strategic transition to a Platform-First, API-driven architecture. The company is moving away from monolithic, client-specific codebases to a standardized ecosystem. As a Senior TypeScript/Vue.js Developer, you will be the technical visionary for the platforms, ensuring the technology remains high-performing and scalable.

Job Description

• Act as a key technical liaison between business and engineering teams, translating commercial goals into actionable technical solutions
• Evaluate publisher technical environments and design scalable, maintainable architectures
• Prepare client-ready solution proposals, including features, integrations, and tools
• Lead cross-functional delivery teams, including developers, designers, DevOps, and technical PMs
• Provide architectural oversight throughout the development lifecycle to ensure continuity and quality
• Manage distributed teams across multiple time zones
• Mentor engineers, conduct code reviews, and guide technical growth
• Make architectural decisions at component and plugin levels, balancing trade-offs and communicating choices clearly

Qualifications

• At least 6+ years of hands-on experience in JavaScript / TypeScript, Vue.js, and Node.js
• Experience in microservices architecture and distributed systems integration
• Hands-on experience with AWS Lambda or similar serverless technologies
• Deep understanding of plugin-based systems and extensibility points
• Proven ability to customize and extend existing solutions without breaking core functionality
• Experience in AdTech environments with evolving requirements
• Knowledge of Vite, Cypress, and Vitest for modern development workflows and testing
• Experience with AWS S3 and CloudFront for scalable storage and content delivery
• Strong commercial acumen and ability to translate business goals into technical infrastructure
• Fluent English communication skills for enterprise stakeholder management

WILL BE A PLUS

• Experience with other serverless frameworks (e.g., Azure Functions, Google Cloud Functions)
• Familiarity with enterprise e-commerce platforms
• Knowledge of performance optimization and security best practices
• Prior work in media publishing technology solutions

PERSONAL PROFILE

• Proactive, solution-oriented mindset
• Strong problem-solving skills and ability to unblock dependencies
• Comfortable working in fast-paced environments with evolving requirements
• System-thinking approach — seeing beyond individual tasks to the bigger picture

Are you ready to take the helm of a fast-scaling B2B FinTech product in the crypto payments space? We are looking for a visionary CEO to lead strategy, growth, and execution for GeekPay — a next-generation platform transforming how global teams get paid.

This is an Executive position with high autonomy, where you will own the business end-to-end — from product direction to market expansion.

At Sigma Software, we partner with innovative companies worldwide to deliver impactful technology solutions. Joining us means gaining access to our extensive ecosystem of technical experts, product talent, and strategic partners — all to help you scale faster and smarter.

Why join us? You’ll lead a proven product with real traction, backed by a strong network, and have the freedom to shape its future in a rapidly evolving industry.

Customer

GeekPay is an innovative B2B FinTech company developing secure, scalable crypto payment infrastructure for global contractor payouts. The platform enables businesses to process payments in cryptocurrency (including stablecoins) with high operational reliability, compliance-ready reporting, and reduced administrative overhead. GeekPay’s mission is to make cross-border payments faster, safer, and more transparent for distributed teams worldwide.

Project

GeekPay is a turnkey platform designed for batch-paying contractors in crypto, including stablecoins, with built-in tracking, verification, and reporting. It addresses common industry pain points such as network mismatches, lost access, manual reconciliations, and audit complexity.

The product has already processed over $1.5M in total payroll for live customers and is now entering a scaling phase focused on:

• Faster onboarding
• More network integrations
• Strategic partnerships to drive high-volume usage

Responsibilities

• Own the business end to end: strategy, product direction, go-to-market, team, and results
• Turn existing traction into repeatable, scalable growth on new markets & clients
• Build and lead a strong team with clear ownership and decision-making
• Leverage Sigma Software Group’s ecosystem to the fullest — technical teams, product/design, security/DevOps, legal, finance, partners, and client network
• Be accountable for key business outcomes and performance
• Represent the company with credible storytelling, strong PR presence, and relationship-building with customers, partners, and investors

Requirements

• Entrepreneurs ready for a true CEO seat to own strategy, execution, and results end-to-end
• Proven scaler who has taken a product business beyond early traction
• Strong GTM visionary who can build sales, partnerships, and a repeatable growth engine
• The commercial and financial owner is confident in unit economics and hard trade-offs
• High-autonomy leader who hires well, leads teams, and moves fast with full accountability
• Executive communicator with strong negotiation skills
• Advanced level of English

Will be a plus

• Strong network within the blockchain/crypto ecosystem
• Experience with regulatory compliance in payments or financial services
• Background in fundraising or investor relations
• Experience with international markets

Personal Profile

• Visionary, results-driven leader with a strategic mindset
• Confident decision-maker who thrives in high-growth environments
• Skilled at building and leading high-performing teams
• Strong relationship-builder with partners, customers, and investors
• Comfortable navigating complex market dynamics

We’re looking for a dynamic and enthusiastic Project Manager to join our Design & Web Solutions Business Unit. In our fast-paced environment, things move quickly, so you’ll need to stay ahead by adapting to new tools and technologies with ease. Being results-driven and able to manage multiple tasks simultaneously will be key to your success.

Our Project Managers are professionals at bringing ideas to life. They not only understand the underlying business goals behind requirements but also provide teams with valuable user insights, drive projects to completion, and ensure we deliver exceptional experiences that delight our customers.

Requirements:

• At least 3 years of project management experience in a dynamic environment
• Proficiency in Agile, Scrum, and Kanban methodologies and tools
• Strong organizational and multitasking skills
• Critical thinking and problem-solving abilities
• Experience managing stakeholders and aligning team capabilities with client needs
• Excellent verbal and written communication skills
• Ability to meet tight deadlines while maintaining quality
• Quick learner, adaptable to new tools and processes
• Proven track record of delivering projects aligned with business objectives
• Strong interpersonal skills and ability to lead cross-functional teams
• Upper-Intermediate or higher level of English

Will be a plus:

• Knowledge of design workflows and tools (Figma, Sketch, Adobe Creative Suite)
• Experience communicating effectively with design teams

Personal Profile:

• Results-driven and proactive
• Flexible and adaptable to change
• Strong leadership and team motivation skills
• Detail-oriented with a focus on quality
• Excellent collaboration and interpersonal skills

Responsibilities:
 

Project estimation and planning:

• Lead the estimation process, defining project scope, timelines, and resource requirements for creative, graphic design, and web development projects (WordPress, WebFlow, etc.)
• Develop detailed project plans and schedules, ensuring all phases are accounted for — from concept to delivery

Project activities control, time, and effort tracking:

• Monitor project progress, ensuring tasks are completed on time and within budget
• Track team effort, project hours, and deliverables to ensure efficient use of resources and adherence to timelines
• Provide regular project status updates to stakeholders and management

Team coordination:

• Coordinate with cross-functional teams, including designers, developers, and marketing specialists, ensuring smooth collaboration
• Ensure all team members are aligned with project goals, timelines, and deliverables

People management:

• Lead and motivate the project team, providing guidance and support to ensure high performance
• Foster a positive work environment where team members can collaborate, solve problems, and grow professionally

Team utilization:

• Ensure optimal utilization of team members by assigning tasks based on skills, availability, and project needs
• Balance workloads across the team to prevent burnout and maintain productivity

Project risk management:

• Identify potential project risks early on, assess their impact, and develop mitigation strategies to minimize risks
• Proactively address issues as they arise, ensuring projects stay on track

Successful execution and delivery of projects:

• Ensure projects are executed efficiently and delivered within the agreed scope, budget, and timelines
• Maintain a high standard of quality in all deliverables, ensuring they meet both client and internal expectations

Customer business needs identification and product solution selection:

• Work closely with clients to understand their business needs and goals
• Collaborate with internal teams to recommend optimal solutions that align with client objectives and add value to their business

Support in developing marketing strategies:

• Contribute to the creation of marketing strategies, especially concerning internal branding and Sigma Software’s identity.

We’re seeking motivated, sharp-minded professionals to join our team as a Cyber Security Analyst/Researcher. In this role, you’ll collaborate directly with clients, examine traffic patterns, and play a key part in identifying and neutralizing harmful bots and online threats.

Why join us? If you’re passionate about cybersecurity and eager to make the internet a safer place, this is your chance to make a meaningful contribution.

Customer

Our customer is a global provider of comprehensive security solutions, protecting individuals, organizations, and communities from a wide range of risks, particularly in the digital space. Their enterprise-focused products specialize in bot defense and invalid traffic detection, helping clients safeguard critical systems and maintain operational integrity.

Project

The project focuses on real-time threat detection and bot mitigation for enterprise-scale clients. Cyber Security Analyst collaborates directly with customers, leveraging advanced analytics platforms to identify malicious traffic patterns and neutralize online threats. This dynamic environment requires both technical expertise and strong communication skills.

Requirements

• At least 4 years of experience in data analysis in cybersecurity or fraud detection domains, including experience with logs and dashboards
• Strong SQL skills: complex queries, aggregations, GROUP BY, ORDER BY, filters, window functions (e.g., RANK()), CTEs, and subqueries
• Technical understanding of web technologies and client–server architecture (APIs, HTTP, basic HTML/JavaScript)
• Experience with SIEM systems (experience with the Elastic Stack would be an advantage)
• Strong troubleshooting and problem-solving skills
• Experience in customer support, including direct communication with clients; professionalism and politeness are essential
• Strong English communication skills

Would be a plus 

• Experience in a Cybersecurity Analyst/Researcher role, ideally supporting external customers in threat detection and response
• Experience in web security and security research: web application security, bot management, fraud detection
• Experience with research methodologies (hypothesis testing, verification and research plan)
• Python and JavaScript knowledge
• Experience with BigQuery/Snowflake
• Proficiency in building dashboards using BI tools (Snowflake, Looker, Kibana, JSM)

Personal Profile

• High level of responsibility and ownership
• Ability to work independently with minimal supervision
• Analytical mindset with a data-driven approach to decision-making
• Genuine interest in data, cybersecurity, and delivering high-quality customer service

• Proactive communicator who keeps stakeholders informed without being prompted

   

  Responsibilities

• Investigate advanced and persistent attacks using data analysis and data science tools
• Analyze customers’ web traffic to detect unidentified threats and reduce false positives using Elasticsearch and BigQuery
• Research, design, and continuously enhance detection mechanisms to stay ahead of evolving threats
• Provide real-time technical support to global customers, delivering professional and timely incident responses
• Produce clear, insightful incident reports
• Collaborate cross-functionally with R&D and Research teams to optimize the company’s detection and mitigation capabilities
• Design, plan, and implement internal automation projects to improve team efficiency
• Work in a shift-based schedule, including weekends

Are you an experienced technical leader ready to shape the future of scalable AdTech platforms? We are seeking a Principal Engineer to drive architectural transformation and lead high-impact projects for a Sweden-based industry innovator.

This is a senior-level role with full remote flexibility across Europe. At Sigma Software, we partner with global leaders to deliver cutting-edge technology solutions that automate and optimize revenue-focused operations. You will work on strategic initiatives, collaborate with cross-functional teams, and influence technical direction in a fast-paced, evolving domain.

Why join us? You’ll have the opportunity to work on globally recognized platforms, contribute to architectural innovation, and enjoy a supportive culture with challenging projects.

 

CUSTOMER

Our Customer is a Swedish AdTech company that transforms the way publishers and advertisers interact. They provide state-of-the-art self-serve advertising platforms that enable seamless, direct transactions between advertisers and some of the world’s largest publishers. Their mission is to make advertising more accessible, automated, and efficient through innovative technology. Together, we serve globally recognized clients, including TripAdvisor, Bloomberg, The Washington Post, Opera, Dow Jones, etc. 

PROJECT

The project represents a strategic transition to a Platform-First, API-driven architecture. The company is moving away from monolithic, client-specific codebases to a standardized ecosystem. As a Senior TypeScript/Vue.js Developer, you will be the technical visionary for the platforms, ensuring the technology remains high-performing and scalable.

Job Description

• Act as a key technical liaison between business and engineering teams, translating commercial goals into actionable technical solutions
• Evaluate publisher technical environments and design scalable, maintainable architectures
• Prepare client-ready solution proposals, including features, integrations, and tools
• Lead cross-functional delivery teams, including developers, designers, DevOps, and technical PMs
• Provide architectural oversight throughout the development lifecycle to ensure continuity and quality
• Manage distributed teams across multiple time zones
• Mentor engineers, conduct code reviews, and guide technical growth
• Make architectural decisions at component and plugin levels, balancing trade-offs and communicating choices clearly

Qualifications

• At least 6+ years of hands-on experience in JavaScript / TypeScript, Vue.js, and Node.js
• Experience in microservices architecture and distributed systems integration
• Hands-on experience with AWS Lambda or similar serverless technologies
• Deep understanding of plugin-based systems and extensibility points
• Proven ability to customize and extend existing solutions without breaking core functionality
• Experience in AdTech environments with evolving requirements
• Knowledge of Vite, Cypress, and Vitest for modern development workflows and testing
• Experience with AWS S3 and CloudFront for scalable storage and content delivery
• Strong commercial acumen and ability to translate business goals into technical infrastructure
• Fluent English communication skills for enterprise stakeholder management
   

WILL BE A PLUS

• Experience with other serverless frameworks (e.g., Azure Functions, Google Cloud Functions)
• Familiarity with enterprise e-commerce platforms
• Knowledge of performance optimization and security best practices
• Prior work in media publishing technology solutions

PERSONAL PROFILE

• Proactive, solution-oriented mindset
• Strong problem-solving skills and ability to unblock dependencies
• Comfortable working in fast-paced environments with evolving requirements
• System-thinking approach — seeing beyond individual tasks to the bigger picture