Jobs at Djinni

Workload: full-time
Location: any
English: B2

Project Overview
Project Start: October 1, 2026
Duration: Long-term project, with contracts renewed in 3-month cycles.
Tech Stack: Native development (SwiftUI, Kotlin).
Work Mode: Remote (onboarding and occasional meetings at the client's office in Hamburg may be required).

Language of Communication: German (minimum B2, C1 preferred).
 

Further information will be provided by the client later, after receiving the candidates' CVs.

Inception-1 is a fast-growing product company. We create AI-driven products that help people feel more connected and less alone. Our mission is to build meaningful digital experiences that blend technology with empathy — and to prove that AI can be both human and transformative.

We are looking for a Product Marketing Manager who will own and drive the growth of our quiz-based B2C funnels across Web-to-App and Web-to-Web experiences. 

You will take full ownership of funnel strategy — from understanding user needs and shaping acquisition journeys to launching experiments, improving conversion and retention, and driving growth through data.
 

Your responsibilities will include:

• Owning the full lifecycle of quiz-based marketing funnels: from idea generation, user research, and hypothesis creation to launch, optimization, and performance analysis.
• Working with our internal AI-powered funnel builder, which enables PMMs to independently create, iterate, and scale funnel experiences, allowing ideas to be tested and launched significantly faster.
• Making product decisions around funnel structure, user flow, functionality, and overall experience to maximize conversion and engagement.
• Designing and validating growth hypotheses through A/B testing and data-driven iterations.
• Analyzing funnel performance, identifying growth opportunities, and improving key metrics across all stages of the user journey.
• Researching competitors and market trends to identify new opportunities.
• Partnering with cross-functional product and growth teams, operating as a single unit fully aligned on experiments, performance, and business outcomes.
   

We are looking for you if:

• You have 3+ years of experience as a Product Marketing Manager.
• You have hands-on experience with quiz-based funnels and understand how to build, optimize, and scale conversion-focused user journeys.
• You are confident working with analytics, understand funnels and business metrics, and have experience working with Amplitude.
• You can conduct user research, segment audiences, and test value propositions.
• You think in a data-driven way and use insights to make product decisions.
• You have an Upper-Intermediate+ level of English — we work in a global market.
• Most importantly, you have an open mindset: our products require curiosity, awareness of emerging trends, a non-standard approach, and comfort working with unconventional topics.
   

What you will get:

• The opportunity to build and scale ambitious AI-powered products used by millions of people worldwide.
• The ability to directly influence product strategy, experiment with new ideas, and own meaningful business outcomes.
• An AI-first culture where we actively explore new technologies, move fast, and use AI to improve user experiences.
• Influence, freedom to act, and the opportunity to grow into a lead role within the team.
• A dynamic environment with a strong culture of experimentation, fast decision-making, and flexible processes.
   

What we offer:

• Comfortable offices in Kyiv’s Podil district with reliable shelters, uninterrupted internet, water, and power supply. No need to worry about daily routines — you’ll have breakfasts, lunches, plenty of snacks and fruits, lounge zones, massage, and other perks of office life;
• Ability to work remotely. Flexible working hours;
• Online corporate doctor services, and after probation — medical insurance in Ukraine;
• 20 paid vacation days per year, unlimited sick leaves;
• All necessary equipment for work;
• Compensation for the best courses on the market, corporate online meetups and lectures, an extensive library, and business & management schools for employees.

Join us!

Join us to shape the future of autonomous AI agents for developers. You'll work closely with AI engineers and researchers to evaluate and improve AI-generated code — helping build systems that genuinely understand and accelerate software development. Your core focus: reviewing and analyzing AI outputs to make our models smarter, faster, and more reliable

Why join us:

• Be part of the next generation of AI-powered development tools redefining software engineering.
• Collaborate with an experienced team of engineers and AI specialists.
• Learn how AI writes, reasons about, and evaluates code.
• Enjoy a fast-paced, high-growth environment where curiosity and initiative are valued.
• Gain hands-on exposure to cutting-edge AI workflows and practical R&D.

Our tech stack:

React, JavaScript/TypeScript, Node.js, Python, Postgres, Redis, AWS

Responsibilities:

• Cloning, running, and debugging AI-generated frontend and full-stack projects.
• Evaluating code for quality, structure, and design fidelity.
• Identifying layout or logic issues and documenting feedback clearly.
• Collaborating with engineers to define code evaluation standards.
• Assisting in creating reusable frontend components and improving internal tooling.
• Supporting small feature development and UI adjustments as needed.

Financial Controller / Financial Reporting Consultant — Holding Reporting, IFRS & ERP Transformation

About the Role

We are looking for an experienced finance professional with a strong background in financial controlling, financial planning, management reporting, group reporting and IFRS. The role will focus on reviewing reporting principles across the holding’s legal entities, identifying inconsistencies or gaps, and ensuring that entity-level financial information can be reliably aggregated into accurate, consistent and meaningful holding-level reporting.

The successful candidate will work closely with shareholders, executive management, accounting teams and ERP implementation specialists to design financial processes, reporting structures and system requirements that support transparent, timely and stakeholder-relevant reporting across the group.

Key Responsibilities

— Analyse accounting policies, reporting principles, chart of accounts, cost centre structures and financial processes across the holding’s entities.

— Assess whether entity-level reporting can be accurately mapped, reconciled and aggregated into holding-level management and financial reporting.

— Identify gaps, inconsistencies or risks that may affect consolidation, comparability, data quality or stakeholder interpretation of financial results.

— Design and improve group-level reporting frameworks, including management reporting, shareholder reporting and IFRS-aligned reporting packages.

— Support financial planning and analysis processes, including budgeting, forecasting, variance analysis and performance reporting.

— Define holding-level reporting requirements that are relevant for shareholders, executive management, lenders and other key stakeholders.

— Work with accounting and finance teams to align local reporting practices with group-level reporting requirements and IFRS principles.

— Translate financial controlling, planning, reporting and consolidation requirements into clear functional requirements for ERP/Odoo implementation teams.

— Support the design of reporting dashboards, management reports, consolidation outputs and financial control checks in the ERP environment.

— Recommend improvements to reporting processes, data quality controls, approval workflows, financial governance and management information.

Requirements

— Strong background in financial controlling, financial planning, management reporting, group reporting or financial consulting.

— Good understanding of IFRS, group reporting and consolidation principles.

— Experience working with multi-entity, holding-company or international business structures.

— Ability to analyse entity-level reporting practices and assess their suitability for holding-level aggregation and stakeholder reporting.

— Experience with budgeting, forecasting, variance analysis, performance reporting and management information.

— Understanding of chart of accounts design, cost centre structures, intercompany transactions, reporting mappings and reconciliation processes.

— Experience working with ERP systems; Odoo experience is an advantage.

— Ability to communicate clearly with finance, business, shareholder and technical stakeholders.

— Practical, hands-on mindset with the ability to turn finance requirements into implementable processes and system specifications.

Nice to Have

— Experience in ERP implementation, finance transformation or reporting automation projects.

— Experience working with international businesses, multiple currencies or cross-border reporting structures.

— Experience collaborating with development teams, business analysts or ERP consultants in Agile or project-based environments.

— Professional finance qualification or progress towards ACCA, CPA, CIMA or equivalent.

What You’ll Get

— Opportunity to shape group-level reporting, financial controls and management information for a holding structure.

— Close collaboration with shareholders, executive management, finance teams and ERP specialists.

— Impact on designing modern financial processes, reporting frameworks and ERP-enabled finance operations.

— Exposure to complex multi-entity finance transformation and stakeholder reporting challenges.

— Flexible and dynamic work environment.

What You'll Do

• Own the end-to-end design process from discovery to delivery.
• Design intuitive experiences for AI-powered products and agent workflows.
• Collaborate closely with Product Managers, Engineers, and leadership.
• Create wireframes, prototypes, user flows, and high-fidelity designs.
• Contribute to and scale our design system.
• Validate solutions through user feedback and data.
• Help define the future direction of our product and user experience.
• Build and implement production-ready UI components using React.js and Electron.
• Bridge the gap between design and engineering by translating designs into functional desktop experiences.
• Develop interactive prototypes and contribute directly to frontend implementation.

• Collaborate on architecture decisions for desktop applications and design systems.

   

Required Skills

• 5+ years of experience in Product Design.
• Strong product thinking and user-centered design mindset.
• Excellent visual design skills, including typography, hierarchy, spacing, and color systems.
• Experience building and maintaining design systems, reusable components, and Auto Layout in Figma.
• Ability to solve complex product problems and translate them into elegant user experiences.
• Strong communication and stakeholder management skills.
• 3+ years of experience with React.js and modern JavaScript/TypeScript.
• Experience building or maintaining Electron applications.
• Strong understanding of component-based architecture and frontend best practices.
• Experience implementing design systems in code.
• Ability to work across both design and engineering disciplines and take ownership from concept to implementation.

• Experience integrating AI features, APIs, and complex workflows into frontend applications.

   

Nice to Have

• Experience designing AI-powered products, SaaS platforms, or developer tools.
• Familiarity with agentic AI tools such as Cursor, Claude, or similar platforms.
• Experience with TypeScript, Next.js, Node.js, or desktop application architecture.
• Experience with state management libraries (Redux, Zustand, Context API).
• Knowledge of performance optimization and cross-platform desktop development in Electron.
• Ability to create prototypes using AI-assisted development tools.

• Experience working in highly technical environments alongside engineering teams.

   

Ideal Candidate Profile

We're looking for a rare hybrid profile: someone who can design exceptional product experiences and also bring them to life in code. The ideal candidate is comfortable moving between Figma and React, understands desktop application development with Electron, and enjoys working on AI-powered products from concept through implementation.

The Role

We’re looking for a Strong Junior/Middle Full Stack Angular/.NET Developer who is eager to learn, grow, and contribute to real-world projects from day one. This is a great opportunity if you have a solid foundation in programming and want to put your skills into practice while building modern, user-friendly applications.

In this role, you’ll work closely with experienced developers, gaining hands-on experience in Angular, .NET Core, and MS SQL. You’ll be part of a supportive team that values collaboration, knowledge sharing, and continuous improvement.

📋Key Responsibilities

• Assist in identifying and fixing bugs and issues in the codebase
• Contribute to front-end development using Angular by designing and implementing user-friendly interfaces
• Support database maintenance tasks, including writing SQL queries and helping optimize performance
• Participate in code reviews with more experienced developers to learn best practices and coding standards
• Help refactor existing code to improve efficiency, readability, and maintainability
• Collaborate closely with senior developers, gaining hands-on experience and guidance in both front-end and back-end development

📝Requirements

• Completed or ongoing Bachelor’s degree in Computer Science or a related field
• Solid understanding of software development principles and best practices
• Demonstrated coding skills with pet projects available on GitHub (or similar platform), preferably in C#
• Hands-on (non-commercial) experience with:
  • .NET Core (EF Core, MVC, Onion Architecture, or CQRS)
  • SQL databases
• English proficiency at B2+ level
• Availability for a full-time schedule: 12:00 – 20:30 (Mon–Fri, including a 30-minute lunch break)
• Willingness to participate in regular team meetings during working hours
• Strong analytical and problem-solving skills
• Excellent communication and teamwork abilities
• Experience with Angular (or any other JS) framework

What We Offer

📈  Growth opportunities — clear paths for professional development and career advancement

🔋 Supportive culture — a friendly, collaborative environment where your ideas matter

🖥️  Modern projects — work with cutting-edge technologies on meaningful, real-world applications

💡 Talented team — join a motivated group of professionals who are always ready to share knowledge and help you grow

Join our team at SoftPlus Ukraine and contribute to the success of our innovative projects.

Apply now!

Requirements

• 2+ years of hands-on experience managing social media and content for brands;
• Proven experience in the esports industry;
• Strong understanding of SMM analytics and data-driven decision-making;
• English proficiency at Upper-Intermediate level;
• Ability to work independently and manage multiple channels simultaneously.

Will be plus

• Experience working with AI tools;
• Skills in Figma and Photoshop;

• Experience using Jira, Slack, and Notion.

   

Responsibilities

• Managing the brand’s social media accounts (2–4 platforms, including Instagram and Telegram);
• Participating in the development of the SMM strategy;
• Collaborating with cross-functional teams and preparing task briefs;
• Creating and maintaining content plans;
• Developing creative engagement and retention mechanics for users;
• Planning and reporting.

Benefits

• An exciting and challenging job in a fast-growing business groups, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and more
• Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed
• Beautiful offices in Warsaw, Limassol, Kyiv, Almaty, Yerevan — work remotely or on-site with comfort and enjoy the opportunity to build a network of connections with professionals day by day
• Modern corporate equipment based on macOS or Windows and additional equipment are provided
• Paid vacations, sick leave, personal events days, days off
• ️Corporate health insurance program for your well-being
• Referral program — enjoy cooperation with your colleagues and get the bonus
• Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences
• Rewards program for mentoring and coaching colleagues
• Free internal English courses
• Yoga classes to help you stay active and energized
• In-house Travel Service
• Multiple internal activities: online platform for employees with quests, gamification, presents and news, RedCore clubs for movie / book / pets lovers, special office days dedicated to holidays
• Corporate events, team buildings
   

We are seeking a motivated Junior Big Data Engineer to join our team. In this role, you will contribute to the development and maintenance of data pipelines, data models, and data processing solutions within modern cloud and big data environments. You will work closely with senior engineers to build scalable data solutions and support data-driven business initiatives.

The ideal candidate has hands-on experience with Python, PySpark, and SQL, a solid understanding of data engineering fundamentals, and an interest in working with large-scale data platforms and AI-powered solutions.

Key Responsibilities:

• Support the design, development, and maintenance of data pipelines and ETL/ELT processes.
• Develop and optimize data transformation workflows using Python and PySpark.
• Assist in integrating data from multiple sources while ensuring data quality, consistency, and reliability.
• Collaborate with data engineers, data scientists, and AI/ML engineers to prepare and manage datasets for analytics and machine learning applications.
• Participate in data modeling, schema design, and data warehousing activities.
• Monitor data pipelines, investigate issues, and contribute to performance improvements.
• Follow data governance, security, and privacy best practices.
• Document technical solutions, processes, and data flows.
• Stay current with emerging technologies and industry trends, incorporating innovative solutions into data engineering practices, and effectively document and communicate technical solutions and processes.

Tools and skills you will use in this role:

• Palantir Foundry
• Python
• PySpark
• SQL
• TypeScript

Requirements:

• 1+ year of experience in data engineering
• Strong proficiency in Python and SQL
• Hands-on experience with PySpark
• Familiarity with big data technologies (e.g., Apache Hadoop, Spark, Kafka, BigQuery, etc.)
• Basic experience with cloud services (e.g., AWS Glue, Azure Data Factory, Google Cloud Dataflow)
• Understanding of ETL/ELT pipelines and data integration techniques
• Experience with database systems (e.g., PostgreSQL, MySQL, NoSQL, etc.)
• Effective problem-solving and analytical skills, coupled with excellent communication and collaboration abilities
• Strong communication and teamwork abilities
• Strong mathematical, statistical, and algorithmic skills
• English - Upper-Intermediate or higher

Nice to have:

• Experience with AI/ML
• Previous experience working with JavaScript and TypeScript

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

Join us - a global leader in marketing solutions on platforms like Facebook and Google!

We offer a flexible schedule that includes remote evening, daytime, and weekend shifts.

Allowing you to keep things fresh and varied. 

Requirements:

• 2+ Years Prior experience in customer support, preferably in the affiliate marketing field.
• Experience in affiliate marketing or previous experience with ad launches will be a great advantage.
• B2 English level or above, both written and verbal.
• Strong communication skills and a genuine commitment to delivering outstanding service.
• Proven ability to take initiative and resolve issues independently.

Responsibilities:

• Provide prompt, effective support aligned with company standards via chat, with demo calls upon request.
• Manage ad accounts by monitoring status and balances, handling appeals, and processing ID reviews.
• Work closely with other departments to resolve customer queries efficiently.
• Identify areas for improvement to enhance customer experience and streamline processes.

We Offer:

🌍 Remote work from anywhere 🌴 Unlimited paid vacation days

⏱ Evening, daytime, and weekend shifts. 🤒 10 paid sick days 🗣 English classes 📚 Take part in conferences worldwide

Want to start your career in IT / B2B sales, but don’t have sales experience yet?

We’re looking for a Junior / Trainee SDR with strong English, good communication skills, and a willingness to learn.

This role can be a good fit for someone who has worked as an English teacher, tutor, translator, has a linguistic background, or simply feels confident writing and communicating in English.

We’re ready to teach you from scratch. What matters most to us is your English, attention to detail, clear communication, and motivation to grow in sales / lead generation.

What you’ll do:

• search for potential clients in international markets
• find relevant companies and decision makers through LinkedIn and other tools
• write personalized messages in English
• work with replies from potential clients
• help book calls for the Sales Manager
• keep lead information updated in the CRM

What we’re looking for:

• English level C1 or higher
• strong written communication in English
• interest in IT, sales, or business development
• attention to detail
• willingness to learn new tools
• ability to handle rejections, as they are a normal part of outbound communication

Nice to have:

• experience as an English teacher or tutor
• experience with translation or writing texts in English
• philology / linguistics background
• basic understanding of LinkedIn, CRM, email outreach, or B2B communication

What we offer:

• salary discussed individually based on experience and interview results
• KPI-based bonuses
• training from scratch in SDR / Lead Generation
• mentor support at the start
• work with international markets
• daily practice of business English
• opportunity to grow into a Business Development or Sales Manager role

At the start, we’ll help you understand the product, target audience, LinkedIn, CRM, email outreach, and the basics of communication with potential clients.

This is a great opportunity for someone with strong English to take their first step into international B2B sales and gain practical experience in IT.

About BigD

BigD is one of the fastest-growing iGaming companies focused on LATAM markets. We operate successful casino and betting products and continue expanding our presence across Latin America through new brands, products, and traffic acquisition channels.

We're looking for an SEO Specialist who knows how to build affiliate, review, and satellite websites from scratch, scale organic traffic, and drive long-term growth through SEO.

Responsibilities

• Launch and manage affiliate, review, and satellite websites from scratch.
• Configure and maintain domains, registrars, Cloudflare, SSL certificates, and WordPress installations.
• Perform keyword research, semantic collection, clustering, and content planning.
• Build SEO strategies for casino, betting, game, and brand-related search queries.
• Create and execute internal linking, anchor, and link-building strategies.
• Develop and optimize website structures to maximize organic visibility.
• Use AI-powered tools to streamline content creation and optimization processes.
• Monitor rankings, indexing, traffic, and technical SEO performance.
• Analyze competitors and identify new SEO opportunities across LATAM markets.
• Track Google algorithm updates and adapt strategies accordingly.

• Collaborate with content and marketing teams to ensure SEO best practices are implemented.

   

Requirements

Must Have

• Proven experience launching affiliate, review, or satellite websites from scratch.
• Experience in iGaming, betting, casino, affiliate marketing, or other highly competitive SEO niches.
• Strong hands-on experience with WordPress.
• Experience working with domain registrars, DNS management, SSL certificates, and Cloudflare.
• Solid understanding of technical SEO.
• Strong expertise in keyword research, semantic clustering, and content planning.
• Experience creating and managing link-building campaigns.
• Hands-on experience using AI tools for content generation and optimization.
• Ability to independently manage multiple projects and priorities.

Nice to Have

• Experience with LATAM markets.
• Spanish language skills.
• Experience working with large website portfolios.
• Knowledge of EEAT principles and modern SEO frameworks.
• Familiarity with automation tools, scripting, or AI workflows.

Perfect. Based on the benefits you've provided, I'd recommend the final section as follows:

What We Offer

• Direct communication with the core team and key decision-makers.
• Flexible work schedule and remote-friendly environment.
• 24 calendar days of paid vacation annually.
• Paid sick leave.
• Sports compensation program.
• Compensation for professional courses, certifications, and training.
• Birthday day off.
• Regular salary reviews based on performance and contribution.
• Salary payments at a favorable exchange rate.
• Stable and timely salary payments.
• Non-toxic work environment with minimal bureaucracy and fast decision-making.
• Opportunity to contribute directly to the growth of an international iGaming business.

About weframe

weframe builds custom AI/tech systems for business owners who know AI matters but haven't figured out where to start. We come from inside a fast-scaling tech company where we built AI systems that drove millions in revenue and replaced entire manual workflows. We know what works, what doesn't, and what it costs when nobody asks the right questions first.

Our delivery is hands-on and outcome-driven. We don't consult - we build. You'll be joining a small team where the quality of your work is visible immediately.

The Role

You'll embed directly into client engagements and build. Not scope and hand off, you will do the building. You'll report directly to our technical co-founder and work on live projects with real clients.

This is a contractor role. We care about what you can do today, not your trajectory. If your output is strong, there will be more work.

What You'll Do

• Embed with client teams to understand their workflows, systems, and real problems - not just their stated requirements
• Scope and build AI-powered solutions tailored to each client's specific context, data, and constraints
• Work hands-on across the stack: LLM integration, prompt engineering, evaluation pipelines, APIs, and data plumbing
• Make pragmatic architectural decisions that balance speed of delivery with maintainability
• Iterate based on client feedback - shipped software is the start of the work, not the end
• Monitor and maintain deployed systems post-launch; debug issues in client environments
• Work directly with the technical co-founder on delivery decisions

What We're Looking For

• Strong software engineering fundamentals - you write code that works and that others can follow
• Highly fluent with AI-assisted development: Claude Code, Cursor, Codex, or equivalent - you use these tools to ship faster without sacrificing quality
• Comfortable with ambiguity - you can walk into a messy problem without a spec and figure out what to build
• Experienced with LLM integration and prompt engineering in production environments, not just prototypes
• Strong communicator - you can explain a technical trade-off to a non-technical client without losing them
• Proactive in client settings - you ask the right questions early and dig below surface-level requests to find the real problem
• Security-aware - you treat compliance and secure-by-design as part of delivery, not an afterthought

How to Apply

Stage 1: CV + Send us something that shows us how you work. A GitHub profile or  a project you’ve shipped, and a short description of how leverage AI) 

Stage 2 - 20 min call with co-founder: Not a technical interview. A conversation. Give them a vague, real-ish client problem and listen for whether they ask good questions or jump to solutions.

Are you a Senior Backend Engineer passionate about building scalable AI-driven systems? Join us at Sigma Software to work on a cutting-edge platform that transforms how large-scale engineering organizations manage and analyze complex technical data.
This is a remote position with flexible locations across Europe, Ukraine, and LATAM. You will be part of an innovative team leveraging AI, semantic graphs, and distributed processing to deliver impactful solutions.
At Sigma Software, we value expertise, creativity, and collaboration. Why join us? You will work with advanced technologies, contribute to mission-critical projects, and be part of a company recognized for excellence and innovation.

CUSTOMER
Our customer operates in the AdTech industry, delivering advanced technology solutions that optimize advertising performance and audience targeting. While the name is confidential, the organization is known for leveraging cutting-edge AI and data-driven strategies to enhance campaign effectiveness and deliver measurable business impact.

PROJECT
We are developing a next-generation AI-powered Knowledge Base and Gap Analysis platform for SysML-based engineering environments. The system enables large-scale engineering organizations to ingest, structure, analyze, and reason over complex MBSE artifacts and technical documentation. It supports both cloud and secure classified environments, improving traceability, identifying gaps, and enhancing decision-making in mission-critical projects.

Responsibilities

• Design and develop scalable AI-powered backend systems for SysML-based engineering environments
• Build and maintain distributed data ingestion and ETL pipelines for large-scale engineering artifacts and technical documentation
• Develop and optimize LLM-powered workflows for metadata extraction, semantic analysis, and entity resolution
• Implement AI agents and multi-agent orchestration workflows
• Design and improve RAG-based architectures and semantic retrieval pipelines
• Develop graph-based knowledge representation and traceability analysis solutions
• Work with graph databases, graph processing libraries, and semantic relationship modeling
• Build and optimize distributed data processing workflows using Apache Spark
• Collaborate with cross-functional engineering teams to integrate AI capabilities into platform services
• Design scalable and high-performance APIs and backend services
• Improve system reliability, scalability, observability, and performance across distributed environments
• Participate in architecture discussions and technical decision-making processes
• Contribute to cloud-native infrastructure and deployment workflows
• Support deployments in secure, air-gapped, or classified environments when required
• Create and maintain technical documentation and engineering best practices

Qualifications

• At least 5 years of commercial experience in software engineering, Data Engineering, or AI systems development
• Experience with at least one JVM language
• Hands-on experience building distributed and scalable systems
• Practical experience with LLM-based applications and AI integrations
• Experience building AI agents and multi-agent systems
• Strong understanding of RAG architectures and semantic retrieval workflows
• Hands-on experience with graph technologies, graph libraries, or graph databases
• Experience with Apache Spark and distributed data processing
• Strong understanding of ETL pipelines and large-scale data ingestion workflows
• Experience with cloud-native infrastructure and distributed environments
• Practical experience with backend platform development and API integrations
• Good understanding of semantic search, entity resolution, and metadata extraction
• Experience working with highly scalable and high-performance systems
• Strong problem-solving and communication skills
• Upper-Intermediate level of English

WILL BE A PLUS

• Background in Data Engineering
• Experience with  distributed data processing, Apache Spark, or Apache Beam
• Experience with Knowledge Graphs and graph-based semantic modeling
• Familiarity with MBSE or SysML environments
• Experience supporting air-gapped or classified environments
• Experience with vector databases and embedding pipelines
• Experience with Kubernetes and cloud platforms such as AWS, GCP, or Azure

Additional information

PERSONAL PROFILE

• Analytical mindset with strong problem-solving skills
• Ability to work independently and in a distributed team
• Adaptability to secure and classified environments
• Strong communication and collaboration abilities
• Passion for AI-driven engineering solutions

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, Apache Beam/Apache Spark, SQL, GCP Dataflow, REST APIs, AI-assisted tools, event-driven architectures

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

Requirements

• At least 5 years of experience as a Data Engineer or Backend/Data Engineer
• Strong production experience with Java or Scala
• Experience with Apache Beam or Apache Spark
• 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

Company Description

Are you a seasoned engineer passionate about building scalable, high-performance systems? This Senior-level role offers the opportunity to work remotely with talented teams across Europe, Ukraine, and LATAM.

At Sigma Software, we deliver cutting-edge solutions for global customers, combining technical excellence with a service-minded approach. In this role, you will join a distributed team to architect and evolve an advanced Ads platform, contributing to both innovation and stability.

Why join us? You will work on complex, high-impact systems, collaborate with international experts, and enjoy the freedom to shape architecture and technical patterns that drive long-term success.

CUSTOMER

We partner with a leading company in the AdTech space, delivering high-performance, scalable solutions that empower advertisers to manage campaigns, optimize targeting, and analyze results in real time. The Customer values innovation, reliability, and long-term collaboration, and operates globally with distributed teams in Europe, LATAM, and other regions.

PROJECT

The project focuses on building and evolving core systems for an advanced Ads platform integrated into a product for the interior decor industry. This product enables users to preview and visualize home items before purchase, enhancing shopping experiences both online and in-store.

Job Description

• Design, develop, and maintain APIs and services supporting ad campaign management, targeting, delivery, attribution, and reporting
• Architect scalable, reliable, and high-performance distributed systems
• Optimize systems for high-throughput and low-latency event/data processing
• Drive architectural decisions and establish development patterns
• Collaborate with distributed teams to ensure seamless integration and delivery
• Mentor and guide other engineers, fostering technical excellence

• Ensure code quality, maintainability, and alignment with long-term product goals

   

Qualifications

• At least 5 years of commercial experience in building scalable, high-performance systems
• Hands-on experience with AdTech solutions such as DSP, SSP, ad exchange, prebid, Google Ad Manager, or openRTB
• Strong proficiency in Python, preferably with the Django framework
• Solid knowledge of computer science fundamentals, including data structures, algorithms, and distributed systems
• Good understanding of distributed system architecture with a focus on data availability, reliability, and performance
• Practical experience with Kubernetes, PostgreSQL, and AWS

• Upper-Intermediate level of English

   

WILL BE A PLUS

• Experience with dbt and Redshift

• Familiarity with interior decor industry solutions

   

Additional Information

PERSONAL PROFILE

• Attention to detail and quality
• Excellent communication skills
• Leadership mindset, proactiveness