Jobs at Djinni

We’re looking for a motivated and curious Trainee / Junior Frontend Developer who wants to grow fast and build real-world products.

This role is perfect for someone at the start of their career who already has a basic understanding of web development and is eager to level up with hands-on experience.

You’ll work alongside experienced developers, designers, and product managers, contributing to real features and learning best practices in a supportive team environment.

Please note that we offer a hybrid work format with mandatory in-office presence in Lviv!

What You’ll Be Doing

• Assisting in developing features in React applications
• Working with HTML, CSS, and JavaScript (ES6+) to build UI components
• Integrating with REST / GraphQL APIs (with guidance)
• Fixing bugs and improving existing functionality
• Building responsive layouts based on design specs
• Writing simple scripts and functions inside low-code / no-code editors (e.g., Appsmith-like tools)
• Learning and applying best practices in code quality and performance
• Participating in code reviews and team discussions

• Continuously improving your technical skills

   

Requirements

• Basic knowledge of JavaScript, HTML, CSS
• Familiarity with React.js (pet projects or courses are OK)
• Understanding of how APIs work (REST or GraphQL basics)
• Basic understanding of Git
• Understanding how to write scripts/functions in low-code environments (or willingness to learn quickly)
• Desire to learn and grow (this is essential 💯)

• Attention to detail and willingness to grow

   

Nice to Have

• Experience with TypeScript
• Familiarity with Next.js
• Basic knowledge of state management (Redux, Zustand)
• Experience with any UI library (Material UI, Tailwind CSS)
• Understanding of responsive design
• Any experience with low-code platforms (Appsmith, Retool, etc.)

• Any pet projects or GitHub portfolio

   

What You’ll Get

• Strong mentorship and regular feedbacks
• Real commercial experience from day one
• Clear growth path → Junior → Middle
• Friendly team and healthy engineering culture

• Opportunity to work with modern stack (React, GraphQL)

   

What We Offer

- Competitive salary and official employment
- Opportunities for professional growth and continuous learning
- Loyalty card — enjoy corporate discounts across the !FEST network
- Comfortable, independent office with parking
- 18 paid vacation days and 5 paid sick leave days
- Work format: Office (3 days) / Hybrid (2 days)

Join Us

Want to work with people who inspire you?
We’re looking for like-minded individuals to build great things together.
Welcome to the team!

Вимоги до володіння мовами

АнглійськаB1 – Середній

УкраїнськаНосій мови

JavaScript, HTML, React

Про компанію !FESTCloud.ai

!FESTCloud.ai - це інноваційний стартап створений з метою революціонізувати взаємодію бізнесу, людей та ІТ технологій. Ми - сучасна індустріальна клауд платформа, що забезпечує повний комплекс digital можливостей для реалізації бізнес застосувань нового рівня, утворюючи екосистему творчої синергії людського потенціалу, АІ та провайдерів цінності в різних сегментах бізнесу. Наш стартап — це симбіоз нового мислення для розробки програмних засобів об’єднаного з найсучаснішими технологіями котрі в руках найкращих спеціалістів України, що мають досвід роботи для найпотужніших компаній світу. Наша мета зробити Україну - країною передової digital технології що служить на благо людству. 

Ми співпрацюємо з компаніями, яким потрібні: 

- інноваційні ІТ-рішення; 

- новий підхід до масштабування. 

Наша платформа дає вам змогу легко керувати своїм бізнесом, не потребуючи технічних навичок, використовуючи інтерфейс без коду. Завдяки передовим інструментам штучного інтелекту, таким як персоналізовані рекомендації, помічники на основі штучного інтелекту та предиктивна аналітика, ми допомагаємо вам відкрити нові можливості та взаємодії, вбудовані в передову технічну архітектуру, котра робить реалізацію інновацій не rocket science задачею. 

Платформа: 

Відчуйте абсолютно новий спосіб ведення свого бізнесу — наче граєте в гру. Наша платформа надає користувачам: 

- потужні можливості розробки без програмного коду на основі AI; 

- інструменти розширеного керування обробкою даних. 

- революційні механізми роботи з знаннями та інсайтами ML Усе це відбувається в хмарному середовищі, яке забезпечує оптимальну масштабованість і гнучкість. 

Про нашу команду:

 - !FESTCloud.ai — це не типова технологічна компанія. 

- Ми — українці, керовані пристрастю до інновацій. Ми прагнемо розширювати межі можливого та використовувати передові технології для ефективних рішень. Ми разом долаємо виклики, створюючи елегантні рішення, які створюють трансформаційний вплив. Завдяки нашій візії та реалізації рішень, інноваційному духу та ясному баченню ми перетворюємо безлад на порядок - mess to mesh!

N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and more, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries. Join N-iX and become part of a team where your ideas make a real impact.

At N-iX CTO Group, we harness the power of technology to drive innovation and deliver exceptional business value. We specialize in designing and executing industry-relevant solutions that redefine standards in enterprise technology. Join a vibrant team committed to driving large-scale transformation across global enterprises.

As a Principal Solutions Architect, you will play a key leadership role in shaping technology direction, guiding cross-functional initiatives, and enabling high-impact delivery. You’ll be responsible for leading complex solution engagements, from discovery and advisory to implementation, while mentoring architecture talent, strengthening practices, and contributing to company-wide strategic growth.

This role is ideal for a seasoned architect with strong consulting capabilities, a track record of hands-on project delivery, and the ability to scale architectural impact across multiple teams and accounts.

Key Responsibilities

Strategic & Leadership Responsibilities:

• Lead architecture visioning and cross-cutting strategic initiatives across a portfolio of enterprise clients.
• Drive practice growth by establishing frameworks, methodologies, and reusable assets for solution delivery and consulting engagements.
• Build and mentor architecture and engineering teams, ensuring capability uplift and technical excellence across accounts.
• Act as a trusted advisor to client C-level executives and technology leaders, helping shape digital strategy and technology roadmaps.
• Govern architecture implementation across the portfolio to ensure alignment with best practices, maintainability, and long-term value.

Delivery & Consulting Responsibilities:

• Lead or guide discovery phases, assessments, technical workshops, and architecture audits.
• Translate complex business and technical requirements into scalable, sustainable architectural solutions.
• Own solution proposals during pre-sales and upsales, including technical vision, high-level design, risk management, and cost estimation.
• Lead project execution, ensuring architecture is delivered according to vision.
• Evaluate and adopt emerging technologies, aligning client needs with forward-thinking architectural approaches.
• Act as a Chief Architect and lead a team with subordinate architects on the complex accounts.

Qualifications:

• 10+ years of relevant experience in software engineering and solution architecture.
• 3+ years in an architecture leadership or principal-level role within the IT service / IT consulting environment.
• Proven ability to lead complex, high-impact consultancy engagements with global enterprise clients.
• Demonstrated experience building solutions from scratch, preferably for large-scale distributed systems (team size 30+, duration 12+ months).
• Deep understanding of cloud-native architecture, with hands-on experience in at least two major cloud platforms (AWS, Azure, GCP).
• Strong background in microservices, APIs, integration patterns, and distributed system design.
• Track record of coaching, mentoring, and team enablement within a matrixed or consulting environment.
• Exceptional stakeholder engagement and communication skills—equally comfortable with engineers and executives.
• Fluent in modern delivery practices: Agile, DevOps, CI/CD, Infrastructure as Code, etc.
• English - Upper-Intermediate or Advanced

Desirable Certifications:

• SEI Software Architecture Professional
• TOGAF or similar enterprise architecture certification
• Cloud certifications (e.g., AWS Solutions Architect Associate/Professional, Azure Solutions Architect Expert)
• Domain-specific expertise in areas such as data platforms, security, or enterprise integration is a plus

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

Our partner is an international cybersecurity and managed IT services company that helps businesses across Europe build secure, reliable, and compliant IT infrastructure.

The company combines 24/7 Security Operations, cloud & infrastructure services, incident response, and compliance, working with clients in fintech, financial services, critical infrastructure, and other regulated industries.

We are currently looking for a Mid-Senior Microsoft SQL Server DBA / Database Engineer who will work with production database environments, performance optimization, DWH, ETL, and reporting workloads, Power BI, and various database technologies, as well as participate in infrastructure modernization and development.

What will be in focus

SQL Server Administration & Operations

• Administration and support of Microsoft SQL Server 2019–2022 in a production environment.
• Monitoring database health, performance, availability, and capacity.
• Management of Backup & Restore, recovery, and disaster recovery procedures.
• Support and maintenance of High Availability solutions, including Always On Availability Groups, Log Shipping, and Replication.
• Planning and execution of SQL Server upgrades, patching, and migrations.
• Management of database security, authentication, permissions, and access controls.
• Working with SQL Server Agent and supporting scheduled database jobs.

Performance Tuning & Troubleshooting

• Investigation and resolution of database performance issues in production.
• Analysis and optimization of SQL queries, execution plans, and database workloads.
• Monitoring wait statistics, system resources, and performance bottlenecks.
• Development and maintenance of indexing and statistics strategies.
• Troubleshooting blocking, deadlocks, concurrency issues, and long-running queries.
• Use of Query Store, Extended Events, and Dynamic Management Views (DMVs) for performance diagnostics.
• Conducting Root Cause Analysis of production incidents and recurring database problems.
• Identifying potential risks and proactively resolving issues before they impact the business.

Database Development Support

• Supporting development teams on SQL and T-SQL optimization.
• Reviewing database designs, schemas, and data models.
• Participation in deployment and release activities.
• Supporting SSIS packages and database integration processes.
• Participation in code reviews of stored procedures, views, functions, and ETL solutions.
• Collaboration with development, BI, ETL, and data teams to improve database performance and reliability.

Monitoring & Automation

• Implementation and support of SQL Server monitoring solutions.
• Development of proactive health checks, alerts, and diagnostic procedures.
• Creation of automation scripts using T-SQL and PowerShell.
• Continuous improvement of operational processes and reduction of manual administration efforts.
• Support and development of technical documentation, operational procedures, and knowledge base.

Must Have

• 3+ years of experience as a Microsoft SQL Server DBA, Database Engineer, or in a similar role.
• Strong hands-on experience with Microsoft SQL Server.
• Practical experience in database administration and production support.
• Experience with Power BI and support of data sources / backend performance.
• Practical experience with at least one of the relational database technologies — PostgreSQL or MySQL.
• Good level of T-SQL and practical experience with query optimization.
• Experience with Execution Plans, Query Store, Extended Events, DMVs, Wait Statistics, indexing, and statistics management.
• Practical experience with SQL Server performance diagnostics, including blocking, deadlocks, concurrency issues, execution plans, indexing strategies, and resource bottleneck analysis.
• Practical experience with Backup & Restore, Always On Availability Groups, Replication, SQL Server Agent, and Database Security.
• Understanding of authentication, permissions, and access controls.
• Solid understanding of Windows Server fundamentals.
• Experience with ticketing systems and incident management processes.
• Ability to independently diagnose, investigate, and resolve complex technical issues.
• Ukrainian and/or Russian language — mandatory.
• English — B1 level or higher.

Nice to Have

• Experience with Azure — Azure SQL Database, Azure SQL Managed Instance, or other cloud database services.
• Experience with AWS and cloud database services.
• Deeper experience administering PostgreSQL / MySQL.
• Experience with SSIS, ETL, and Data Warehouse solutions.
• PowerShell scripting and automation.
• Experience with VMware environments.
• Experience with large database environments, including 1 TB+.
• Experience with monitoring and observability platforms.
• Experience participating in database migrations, modernization, or cloud transformation projects.

Location and Format

📍 Valencia, Spain
🏢 Office-based during the onboarding period
💼 B2B contract
🤝 Long-term cooperation
💰 Compensation terms are discussed individually — depending on the candidate's experience and professional profile.

Hiring Process

1. Interview with Recruiter
2. Interview with Team Lead
3. Final Interview — CTO & CEO

Job Description

• 5 or more years relevant work experience with BS, or 3 or more years or relevant work experience with MS Degree in Computer Science, Electrical Engineering or related field
• Experience across full software development life-cycle including design, requirements, implementation, andtest
• Java, JavaScript/TypeScript and script programming languages
• Strong development skills with databases and SQLs
• Practical experience working within an Agile/Scrum based environment
• Familiar with AWS services for example S3, ECS, EKS, MSK, VPC, RDS, etc
• Knowledge of Kafka

Job Responsibilities

• Designs, develops, debugs, modifies, tests software programs using Java, Scripting and other current programming languages, methodologies and technologies.
• Perform hands-on Java Development, adoption of modern software engineering & delivery practices using Java, Spring Boot REST/Microservices, AWS.
• Documents software development and/or test development by writing documents, reports, memos, change requests. Methods used are determined by approved procedures and standards
• Tracks software development effort by creating and maintaining records in the approved tracking
  management tool.
• Solves engineering problems by analyzing the situation and recommending corrective or alternative actions.
• Analyzes, evaluates, verifies requirements, software and systems by using software engineering practices.
• Investigates, researches, selects software designs, operating systems and/or practices.
• Continuously improves process and work methodologies by interfacing with peers/cross-functional groups and analyzing activities to improve workflow and work processes.
• Directs support personnel and project activities.
• In all actions, demonstrates a primary commitment to patient safety and product quality by maintaining compliance to the Quality Policy and all other documented quality processes and procedures.
• Represents organization as a prime contact on contracts or projects. Uses discretion, diplomacy, and tact to
  resolve difficult situations. May escalate serious issues to manager.
• Participates in the development of less experienced staff by setting an example, providing guidance, and
  offering counsel.

Department/Project Description

Our customer is an American manufacturer and globally recognized leader in Healthcare and Medical Devices. In close cooperation with the international team you will have the ability to participate in product feature definition, development, testing, and post-release support for innovative medical products.

About the Role
 

We are looking for a motivated Junior Affiliate Manager to join our iGaming affiliate team and work with partners across Africa, Asia, and CIS markets.

This role is a great opportunity for someone with initial affiliate experience who wants to grow within iGaming, develop a strong partner network, and gain hands-on experience with international markets.
 

Responsibilities

• Search for and attract new affiliate partners across Africa, Asia, and CIS.
• Build and maintain relationships with existing partners.
• Support partner onboarding and help with day-to-day communication.
• Negotiate basic cooperation terms under CPA, RevShare, Hybrid, and Fixed models.
• Monitor partner performance and traffic quality.
• Track key results such as FTDs, deposits, conversions, and NGR.
• Prepare regular reports on partner activity and performance.
• Work closely with the Affiliate Team Lead and other Affiliate Managers.
• Coordinate with Marketing, Product, Content, and Design teams when needed.
• Research new traffic sources, partners, and market opportunities.

Requirements

• 6+ months of experience in Affiliate Marketing within iGaming / Gambling.
• Practical experience with at least one of the following regions: Africa, Asia, or CIS.
• Basic understanding of affiliate models: CPA, RevShare, Hybrid, Fixed.
• Understanding of key affiliate metrics such as FTD, CR, deposits, NGR, and ROI.
• Experience communicating and negotiating with affiliate partners.
• Ability and willingness to actively search for new partners.
• English at Intermediate level or higher for international markets.
• Good communication and organizational skills.
• Result-oriented mindset and willingness to learn and grow.

Nice to Have

• Existing affiliate contacts or partner network.
• Experience with affiliate platforms and tracking systems.
• Experience with BetB2B or similar iGaming platforms.
• Basic understanding of traffic quality and affiliate fraud.
• Experience working with multiple GEOs.

Key Objectives

• Build a pipeline of new potential affiliate partners.
• Successfully onboard and activate new partners.
• Develop long-term relationships with active affiliates.
• Generate quality traffic and contribute to FTD, deposit, and revenue targets.
• Gradually build expertise and a strong affiliate network within assigned GEOs.

You'll own design end-to-end — from problem to shipped UI. The role leans UI: visual craft is what sets the bar here. You'll work shoulder-to-shoulder with Head of Product and CTO on what to build and why.
And you'll do all of it with AI deeply embedded in your workflow — for content generation, prototyping, exploration, and production.

What you'll do

• Design end-to-end flows for the SkinnyRx app and web — onboarding, patient dashboards, intake, billing, content surfaces
• Generate and direct AI-produced content — product imagery, illustration, lifestyle photography, micro-animations, video — at a quality that feels intentional, not stock
• Prototype interactively — in Figma when you need precision, in code (via AI tools) when you need realism
• Partner with product, engineering, copy, and marketing on tight shipping cycles
  
  What we're looking for
• 5+ years in product design with a strong UI portfolio of shipped consumer work
• Deep, daily AI tooling across the workflow:
  • Imagery and video: Midjourney, Sora, Runway, Kling, Nano Banana
  • Code prototyping: Cursor, Claude Code, Codex
  • Production: Figma AI, MCP-based workflows
• Self-direction. You come back with options, not blockers
  
  Why join
• Fully remote, async-friendly, any timezone
• High ownership, weekly shipping
• Generous tooling budget — every AI subscription you need
• Comp scaled to your level

— Remote (Ukraine/Europe)

— Schedule: Flexible

Intelvision is looking for a proactive and results-driven Sales Development Specialist to generate high-quality leads, manage Upwork channels, and contribute to building a strong and sustainable sales pipeline.

Responsibilities:

— Manage assigned Upwork profiles, ensuring all outreach aligns with defined positioning, services, and messaging frameworks;

— Source and identify relevant opportunities on Upwork, focusing on ICP fit, deal size and overall business potential;

— Prepare and submit high-quality bids, adapting messaging when needed to improve relevance and response rates;

— Maintain a consistent bidding pipeline, balancing volume with quality and conversion potential;

— Perform initial qualification of opportunities based on relevance, budget, and scope realism, focusing on high-conversion leads;

— Create and maintain accurate lead records in CRM (HubSpot), capturing key context and ensuring proper pipeline hygiene;

— Handoff qualified leads to Sales or SDR teams in a structured and timely manner;

— Collaborate with Sales and Marketing teams to share insights on lead quality, client needs, and objections, contributing to the continuous improvement of outreach strategy;

— Track key performance metrics (bids, replies, conversions) and continuously optimize sourcing, targeting, and messaging;

— Follow internal processes and maintain discipline in daily activities to ensure consistent and scalable lead generation;

Requirements:

— Strong ownership mindset with the ability to independently drive sales channels end-to-end, ensuring consistent pipeline generation and long-term client value;

— 2+ years of experience in B2B sales or lead generation, with a solid understanding of sales funnels, pipeline management and lead qualification (ICP, budget, scope);

— Client-centric approach with a strong service mindset: ability to build trust, understand client needs, and clearly articulate value rather than just “sell”;

— Strong discovery and listening skills, with the ability to ask the right questions and identify high-potential opportunities;

— Solid understanding of IT services (e.g., web development, cloud solutions, AI, integrations) and ability to translate client needs into business opportunities (no coding required);

— Experience working with CRM systems (preferably HubSpot) and maintaining structured, accurate pipeline data;

— Proven ability to handle objections and keep conversations engaging;

— Process-oriented mindset with the ability to follow, optimize, and scale sales processes, as well as track key metrics (bids, responses, conversions);

— Hands-on experience with Upwork or similar platforms, including profile positioning, writing effective proposals, and identifying high-quality projects (strong advantage);

— Excellent communication skills (C1—C2 English), both written and spoken;

What we offer:

— Remote-first work environment;

— Long-term permanent position in a stable industrial technology company;

— Opportunity to work on real-time systems used in production environments worldwide;

— High ownership culture with direct impact on hardware/software architecture;

— Flat hierarchy and collaborative engineering team

— Paid sick leaves and vacations;

— Complete hardware package;

— Refund of personal professional growth (courses, platforms, etc);

— Personal development plan;

— Internal accountant;

— Ability to select currency for your contract.

We build and run AI agent systems for founders. Four are in production — German real estate, US legal tech, executive assistance, enterprise HR analytics — with paying clients since 2023 and revenue that renews monthly.

Every one of those clients arrived by referral. Nobody here has ever gone out and found one.

That's the seat. You'd be the first person to do outbound at this company.

What we sell

Technical ownership of a founder's roadmap and its execution, from one person. One weekly call, cancellable at the end of any month. The price is published, not quoted.

Who buys it

Two shapes, and they buy for different reasons:

• A founder with no technical half. Non-technical, or technical enough to judge the work but not to own it. Has money and a specific thing they want to exist, and nobody who can build it. This is often one person — headcount doesn't bound it
• A 3–20 person company with deep domain expertise, owner-operated, doing something valuable by hand. They know their domain better than we ever will and have nobody who can turn it into a system

What they share is that the person on the call is the one whose money it is, and that nobody inside can build the thing.

What you'd do

• Find both shapes — the second one is the half most people forget, and it's the one that's already profitable
• Verify each one against four checkable facts, before any meeting is booked
• Get them onto our founder's calendar
• Sit on the scoping call — you're on every one of them
• Target: four qualified founders a month. That's the entire KPI

What we're looking for

• 2+ years selling custom software development or dev services. Not SaaS seats, not staff augmentation
• At least one deal you closed where the signer was the founder
• You can see when a founder is about to buy, from public signals. Ours have been: money already spent on a prototype with nothing running; an engineering role open for months at a company too small to assess the candidates; the one technical person just left and the roadmap went with them. And on the domain-expertise side: a third hire into the same manual role, or an ops ad whose responsibilities read as a list of steps
• You can tell a real buyer from a curious one before we spend an hour on them
• You work without being managed. There is nobody here to check in on you, set your week, or notice you've stalled. The target is the only instruction you get
• English B2 or better

Format

• Fully flexible, your own hours, we are okay with you being employed somewhere else at the same time or running your own business
• Independent contractor, commission-based — paid per qualified meeting and per closed deal. No base. Figures and full terms come in a two-page sheet after we've talked

Team Summary

Our team consists of four software engineers and one development manager. Our main team specialization is AI/ML algorithm deployment on various embedded devices. With a focus on quality and flexibility, our team builds long-term on-device and host solutions including business logic, algorithms, and infrastructure related to ML pipelines.

Job Summary

We are seeking an experienced Software Engineer with deep expertise in IoT ecosystems and machine learning infrastructure. This role will lead the architectural design and strategic evolution of our ML algorithm execution platform in host environments, driving innovation across two critical domains: optimizing existing distributed systems and pioneering next-generation capabilities.

Responsibilities and Duties:

• Profile models and bring up new hardware. 
• Convert models, and measure their performance. 
• Drive cross-platform compatibility decisions and mentor team on embedded systems ML Infrastructure Leadership Design and optimize distributed ML inference systems for edge-to-cloud deployment.
• Lead performance engineering for throughput/latency optimization across heterogeneous hardware Own resource management strategies for memory-constrained embedded environments.
• Quality Engineering & Testing Strategy.
• Design comprehensive testing frameworks (unit, integration, HIL, performance).
• Own CI/CD pipeline architecture with automated hardware testing.
• Establish quality metrics and monitoring for production firmware deployments.
• Technical Leadership Drive cross-functional architecture decisions with product, hardware, and data science teams.
• Lead technical reviews and provide guidance on complex system design challenges.
• Own technical debt reduction and long-term scalability planning

Qualifications and Skills:

• 5+ years of commercial software development experience.
• Strong command of C++ and solid understanding of Computer Science fundamentals.
• Proven experience with Agentic AI 
• Proficient in CMake, Bash scripting, and Linux command-line operations.
• Excellent written and spoken English proficiency.

Nice to have:

• Experience with model conversion, quantization, and performance profiling.
• Knowledge of Python
• Familiarity with Git and Jenkins.
• Hands-on experience with AWS and Docker.

We offer multiple benefits that include

• The environment of equal opportunities, transparent and value-based corporate culture and an individual approach to each team member
• Competitive compensation and perks. Annual performance review
• Opportunity to receive a Performance Bonus for your individual achievements and a Loyalty Bonus recognizing your dedication to the company
• Gig-contract
• 21 paid vacation days per year, paid public holidays according to the Ukrainian legislation
• Development opportunities like corporate courses, knowledge hubs, and free English classes as well as educational leaves
• Medical insurance is provided from day one. Sick leaves and medical leaves are available
• Remote working mode is available within Ukraine only
• Free meals, fruits, and snacks when working in the office

Ready to build systems operating at internet scale and fight sophisticated digital fraud in real time? We are looking for a Senior Golang Backend Engineer to join a cross-functional team developing cutting-edge AdTech and cybersecurity solutions.

In this role, you will work with high-load distributed systems processing over 1.5 trillion prediction requests daily while collaborating with data scientists, malware analysts, and product experts. You will contribute to building scalable fraud prevention technologies used by major internet companies worldwide.

We at Sigma Software offer the opportunity to work on impactful global products, solve complex engineering challenges, and grow alongside experienced professionals in a collaborative and innovation-driven environment. Work format and location are flexible depending on your preferences and project needs.

Customer

Our Customer is a global cybersecurity company delivering advanced protection solutions for individuals, organizations, and digital ecosystems. The company specializes in large-scale threat detection, digital risk mitigation, and real-time protection technologies designed to combat sophisticated online threats across multiple industries.

Project

The project focuses on building a real-time risk assessment platform for the digital advertising ecosystem. The solution helps identify invalid, fraudulent, or low-quality traffic before advertising budgets are spent, enabling automated decision-making in real time.

The team develops advanced fraud detection technologies integrated with major AdTech platforms, agencies, and brands. Engineers work closely with researchers and analysts to uncover abuse patterns, reduce sophisticated invalid traffic (IVT), and improve transparency across programmatic advertising systems.

Job Description

• Design, develop, and maintain high-performance backend services in Golang
• Build and optimize distributed systems processing trillions of prediction requests daily
• Collaborate with data scientists, malware analysts, researchers, and product managers
• Improve system scalability, reliability, latency, and cost efficiency
• Develop, test, review, deploy, and maintain software across multiple environments
• Ensure software quality through clean architecture and engineering best practices
• Contribute to backlog prioritization and technical planning
• Deploy and support services in Kubernetes environments
• Investigate fraudulent activities and develop new fraud prevention approaches
• Drive engineering excellence within a collaborative product-oriented team

Qualifications

• 5+ years of commercial software development experience
• Strong commercial experience with Golang and backend engineering
• Strong Computer Science fundamentals including algorithms, data structures, concurrency, and system design
• Proven experience with high-load distributed systems
• Experience with performance tuning, latency optimization, and memory management
• Hands-on experience with Kubernetes, Terraform, and Helm Charts
• Good understanding of DevOps practices and cloud-native deployments
• Experience with SQL databases and large-scale data processing
• Experience working with AI tools, LLMs, or agent-based systems
• Product-oriented mindset and ability to align technical solutions with business goals
• Experience across the full software development lifecycle
• Ability to design stable, maintainable, and scalable architectures
• Availability to work with flexible hours and maintain 3–4 hours overlap with EST time zone
• Upper-Intermediate English level or higher

Will Be a Plus

• Experience with Apache Airflow
• Experience with Python
• Experience with Snowflake
• Experience in the AdTech domain
• Experience with C++

Personal Profile

• Strong analytical and problem-solving mindset
• Ownership mentality and proactive approach
• Ability to work effectively in a cross-functional environment
• Passion for scalable and high-quality systems
• Ability to balance technical excellence with business priorities
• Comfortable working in a fast-paced product environment

Готові працювати із системами інтернет-масштабу та допомагати протидіяти складному цифровому шахрайству в режимі реального часу? Ми шукаємо Senior Golang Backend Engineer до кросфункціональної команди, яка створює сучасні рішення на перетині AdTech і кібербезпеки.

У цій ролі ви працюватимете з high-load distributed systems, які щодня обробляють понад 1,5 трильйона prediction requests, а також тісно взаємодіятимете з data scientists, malware analysts, researchers та product experts. Ви долучитеся до розробки масштабованих технологій для запобігання шахрайству, якими користуються провідні інтернет-компанії по всьому світу.

У Sigma Software ви матимете можливість працювати над глобальними продуктами, вирішувати складні інженерні задачі та розвиватися поруч із досвідченими фахівцями. Ми цінуємо співпрацю, технічну експертизу та прагнення постійно вдосконалюватися. Формат роботи та локація можуть бути гнучкими залежно від ваших побажань і потреб проєкту.

Customer

Наш Customer — глобальна компанія у сфері кібербезпеки, яка розробляє технології для захисту людей, бізнесу та цифрових екосистем. Компанія спеціалізується на масштабному виявленні загроз, зниженні цифрових ризиків і захисті в реальному часі, допомагаючи протидіяти складним онлайн-загрозам у різних індустріях.
 

Project

Проєкт присвячений розвитку risk assessment platform, яка працює в режимі реального часу та є частиною digital advertising ecosystem. Платформа допомагає виявляти невалідний, шахрайський і низькоякісний трафік ще до того, як рекламні бюджети будуть витрачені. Рішення автоматично оцінює ризики та приймає рішення в режимі реального часу.

Команда створює сучасні технології для виявлення fraud, які інтегруються з провідними AdTech-платформами, агентствами та брендами. Engineers тісно співпрацюють із researchers та analysts, щоб знаходити нові patterns of abuse, зменшувати обсяг sophisticated invalid traffic (IVT) та підвищувати прозорість programmatic advertising systems.

Job Description

• Розробляти та підтримувати високопродуктивні backend services на Golang
• Проєктувати й оптимізувати distributed systems, здатні обробляти трильйони prediction requests щодня
• Тісно співпрацювати з data scientists, malware analysts, researchers та product managers
• Працювати над scalability, reliability, latency та cost efficiency систем
• Розробляти, тестувати, проводити code reviews, деплоїти та підтримувати software у різних environments
• Забезпечувати високу якість коду завдяки clean architecture та engineering best practices
• Брати участь у backlog prioritization і technical planning
• Деплоїти та підтримувати сервіси в Kubernetes environments
• Аналізувати fraud activity та розробляти нові підходи до fraud prevention
• Сприяти розвитку engineering excellence у collaborative, product-oriented команді
   

Qualifications

• 5+ років комерційного досвіду у software development
• Сильний практичний досвід роботи з Golang та backend engineering
• Ґрунтовні знання Computer Science fundamentals, зокрема algorithms, data structures, concurrency та system design
• Підтверджений досвід роботи з high-load distributed systems
• Практичний досвід у performance tuning, latency optimization та memory management
• Досвід роботи з Kubernetes, Terraform та Helm Charts
• Розуміння DevOps practices та cloud-native deployments
• Досвід роботи з SQL databases та large-scale data processing
• Досвід використання AI tools, LLMs або agent-based systems
• Product-oriented mindset та здатність пов’язувати технічні рішення з бізнес-цілями
• Досвід роботи на всіх етапах software development lifecycle
• Здатність проєктувати стабільні, масштабовані та maintainable architectures
• Готовність працювати за гнучким графіком із 3–4 годинами перетину з EST
• Англійська на рівні Upper-Intermediate або вище

Will Be a Plus

• Досвід роботи з Apache Airflow
• Досвід роботи з Python
• Досвід роботи зі Snowflake
• Досвід у AdTech

• Досвід роботи з C++

   

Personal Profile

• Сильне аналітичне мислення та розвинені problem-solving skills
• Високий рівень ownership і проактивність у роботі
• Здатність ефективно взаємодіяти в кросфункціональних командах
• Інтерес до створення масштабованих, надійних і якісних систем
• Уміння знаходити баланс між технічною досконалістю та бізнес-пріоритетами
• Комфортна робота у fast-paced product environment

You are a Computer Science expert with a strong understanding of advanced data structures, hashing mechanism, complexity of search, sorting, and you have a high-level knowledge of many sorting algorithms.

Being part of our growing RandD team involved in groundbreaking mobility focused research in the Mobile and IoT sectors, you will be provided with amazing opportunities to work on exciting projects that offer innovative mobile device solutions to our enterprise clients across the world.

What You’ll Do

- Take on research and development projects, break down into fundamental elements, explore potential technical paths and propose team approach for architecture and software development elements;

- Understand existing and future product technical challenges and identify solution paths for development; coaching the team along the technical path for optimal solution design;

- Develop innovative solutions to tackle big industry problems in the Mobile and IoT sectors;

- Actively contribute in brainstorming and idea generation activities, as well as participate in enhancing/maintaining existing solutions;

- Maintain high standards of quality for code, technical documentation, and deliverables;

- Define and implement best coding practices; proactively keep a tab on emerging technologies;

- Provide technical guidance on the research and development of new products and services;

- Work closely with the manager to ensure the product is evolving according to need;

- Write well designed, scalable, reliable, testable and reusable code by using best software development practices, clean code and solid principles;

- Contribute towards the entire development lifecycle of analysis, design, implementation and test;

- Detect, report, investigate, and fix product defects;

- Automation, including writing unit and integration tests;

- Collaborate on projects with an all-star team comprised of varying skillsets through code reviews and design discussions;

- Constantly update your knowledge and stay up-to-date with advanced technologies to be able to provide the best solutions for new projects, and

- Have fun, with all of the above!

Experience You’ll Bring

- 8+ years of hands-on experience in software development and solution design preferably with product companies;

- Proven track record of successfully making a positive impact as a tech visionary;

- Previous RandD experience would be a definite asset;

- You have incredible coding skills. Your programming abilities are way above average and you can engage in meaningful conversations about modern technology;

- You obsess over server scalability and robustness and your work reflects that;

- You are a Computer Science expert with a strong understanding of advanced data structures, hashing mechanism, complexity of search, sorting, and you have a high-level knowledge of many sorting algorithms;

- You are constantly investigating new technologies and introducing them into existing products;

- You possess a deep knowledge of Microsoft technology stack- .NET, .NET Core, ASP.NET Web API, SQL Server;

- You have a demonstrable versatility in various front-end and back-end technologies, ideally AngularJS 6 and above, RxJS and knowledge of Flus and Redux. Additionally, JavaScript, HTML5, CSS3, NodeJS, REST APIs, JSON, WCF, Web API, Unity, LINQ;

- You have excellent understanding of unit test principles, multi-layer architecture, SOA principles and best development practices, as well as previous experience using OOD, Design Patterns, Data Modelling and Storage with well-known relational database (preferably SQL);

- Understanding/or strong interest in agile methods such as Scrum/XP, Behavior Driven Development, and Continuous Delivery;

- You are eager to constantly learn and update your skills, and you like to share knowledge with others;

- You are a self-starter with a high degree of initiative, a can-do attitude and a positive mindset;

- Degree from an accredited college/university or equivalent work experience.

What’s in it for you?

The People - From our humble origins in our founder’s basement, to our industry leading position today, SOTI has worked hard to foster a company culture that we can all believe in. A culture that emphasizes personal growth, continuous innovation and fun.

The Growth - Our environment fosters new ideas, fresh perspectives, and the ability to take them over the goal line. SOTI is a fast-paced environment with a global reach that encourages you to make your mark and be part of something big!

The Technology - You’ll get the chance to work with leading edge technologies and take on complex and interesting projects, as part of highly collaborative and agile teams. You will work alongside SOTI’s partners which include leading tech giants that will keep you on the cusp of emerging technologies.

Akurateco is growing, and so is our Marketing team. We’re looking for a motivated Content Writer to help us tell our story across every channel we touch — from search-optimized blog content to the PR publications that build trust in our brand. You’ll work closely with our Head of Marketing, Senior SEO Specialist, and the wider marketing team to produce content that’s not just well-written, but strategic: content that ranks, converts, and builds credibility for a fintech brand.

This is a great opportunity for a writer who wants to grow their skills in SEO, fintech, and multi-format content production, with direct mentorship from experienced marketers.

What You’ll Do:
 

• Write SEO-optimized blog articles based on provided briefs and keyword strategies, turning research and outlines into clear, engaging copy.
• Craft authentic, well-structured reviews for relevant platforms to strengthen brand credibility and trust.
• Contribute to landing pages, PR articles, email marketing campaigns, and other content formats as part of the broader content strategy.
• Partner with the content team to plan, draft, and refine pieces that support marketing and business goals.
• Maintain a consistent brand tone and voice across every piece of written content, adapting register and style to the platform and audience.
• Incorporate feedback from senior writers and stakeholders quickly and constructively, using it to sharpen your craft.
   

What We’re Looking For:
 

• Advanced English proficiency (written).
• Proven content-writing experience, backed by a portfolio of writing samples.
• Basic understanding of SEO fundamentals.
• Strong research skill and attention to details.
• Curiosity and a genuine willingness to learn, especially about fintech and payments.
• Comfortable working in a fast-paced, deadline-driven environment.

Nice to Have:
 

• Prior experience writing for a fintech, SaaS, or other technical/regulated industry.
• Familiarity with CMS such as WordPress.
   

What we offer:

✓ Competitive compensation depending on experience and skills;
✓ Remote-first work environment with flexible working hours;
✓ 20 paid vacation days annually for rest and recharge;
✓ 20 days of sick leave, available as needed;
✓ Corporate English classes;
✓ Professional development support.

Aero is an international team of engineers based in Ukraine. The company was founded in August 2026 and raised its first round of capital.

We're looking for an Aircraft Designer / Aerodynamics Engineer to join the core build team and own the aerodynamic and aero-structural design of an airframe — from CFD and stability analysis through to a flying prototype and first deployments.

What you'll do

• Design and iterate the BWB airframe geometry, balancing aerodynamic efficiency, stability/control, and shaping constraints.
• Run aerodynamic modeling and simulation (CFD, stability & control, performance envelope) to support design decisions.
• Work closely with the Head of Design on composite structure, control-surface actuation, and integration with propulsion and avionics.
• Iterate quickly across a batch-build, test-and-fly development cycle rather than a single "golden" prototype.

What we offer

• A decent stock option plan, but a modest salary for the first 6-9 months (the salary will be increased as soon as we accomplish the plan);
• Opportunity to create an aircraft with unique properties, drive the product development, and grow with us;
• Work in an international team that worked on world-famous products;
• Commitment to global security;
• A lot of work and fun in your new journey with us;
• Reservation from mobilization.

What we expect

• Proven experience and excellent knowledge of the domain;
• Team members learn Ukrainian, but English is still the main team language;
• A great and open-minded human being.

Location: Kyiv, Ukraine

About the Role

This is a high-impact, hands-on leadership role where you will combine strong backend engineering expertise with technical leadership and people development.

You will work closely with Engineering, Product, Customer Success, and customers, owning execution across multiple workstreams and helping shape technical decisions from initial design through production.

We’re looking for someone who is technically strong, hands-on, AI-driven, and passionate about developing people while building scalable and reliable systems.

What We’re Looking For

• 6+ years of hands-on software development experience
• 3–5 years of experience in a technical leadership or Team Lead role
• Deep hands-on expertise with Node.js — must-have
• Strong experience with AWS — must-have
• Experience with React — preferred
• Experience with Python — advantage
• Experience working with MongoDB
• Strong experience designing and building scalable backend systems
• Proven experience managing technical execution across multiple workstreams
• Strong understanding of software architecture, scalability, reliability, and clean code principles
• Experience delivering end-to-end features and projects from design through production
• Experience working in a fast-paced product environment
• Strong ownership mindset and ability to make technical decisions independently
• Strong communication and interpersonal skills
• Experience leading or collaborating with global or distributed teams
• Ability to communicate complex technical decisions clearly to both technical and non-technical stakeholders
• Experience participating in customer-facing technical discussions

What You’ll Be Doing

Leadership & Sprint Execution

• Own Team Execution: Lead the team across multiple workstreams, ensuring high-quality delivery and strong execution throughout every sprint.
• Drive Sprint Planning: Own the sprint planning process, including prioritization, capacity planning, and alignment on sprint goals and deliverables.
• Cross-Team Coordination: Act as the primary bridge between your team and other departments, proactively removing blockers and managing cross-team dependencies.
• Develop the Team: Improve team velocity and individual capabilities through ongoing coaching, mentoring, feedback, and identification of skill gaps.

Technical Excellence & Design

• Own Technical Design: Lead the technical design of features and solutions, ensuring they are scalable, reliable, maintainable, and built according to strong engineering standards.
• Stay Hands-On: Lead by example through active participation in high-scale, cloud-based development using technologies such as Node.js, AWS, and MongoDB.
• Drive Code Quality: Conduct thorough code reviews and promote best practices around architecture, maintainability, performance, and engineering quality.
• Partner with Product: Work closely with Product Managers to shape features from initial concept and technical design through development, release, and production.

Customer-Facing & Domain Ownership

• Engage with Customers: Participate in technical sessions with customers, helping address technical requirements, challenges, integrations, and product-related discussions.
• Own Your Domain: Serve as the technical focal point for your domain and manage communication with OX’s internal Customer Success teams.
• Shape Product Enhancements: Lead technical discussions and decision-making related to product improvements, new capabilities, and feature planning.

AI-First & Performance Mentality

• Drive an AI-First Culture: Integrate AI tools and workflows into the daily development lifecycle, including AI-assisted coding, automated testing, prompt-driven prototyping, and other productivity-enhancing practices.
• Improve Efficiency & Quality: Promote a strong “Get Things Done” culture where speed does not come at the expense of stability, scalability, or quality.
• Use Modern Engineering Tools: Ensure the team continuously adopts the best available technologies, tools, and development practices to improve productivity and overall engineering performance.

Blackthorn Vision is seeking a Middle Strong/Senior Backend Developer (Java) for an outstaff project with a global leader in energy technology. Founded in 1926 and headquartered in Houston, Texas, the company has 100,000 employees serving customers in more than 120 countries and develops software solutions for automation across the energy and industrial sectors.

You will work as part of an international team, collaborating with Blackthorn Vision specialists, client-side engineers, and management. We are looking for a self-driven team player with strong problem-solving skills, a commitment to quality, and a passion for delivering robust and maintainable software solutions. Upper-Intermediate English or higher is required for effective day-to-day communication. The position follows a regular full-time working schedule aligned with the Ukrainian time zone.

In this role, you will build and support backend services that process operational and time-series data and deliver reliable APIs and event-driven solutions. You will work with technologies such as Kafka, Azure IoT Hub, RabbitMQ, Redis, Kubernetes, and Microsoft Azure to develop high-performance, resilient, and scalable applications.

Required Qualifications:

• 4+ years of professional software development experience.
• Strong hands-on experience with Java, Spring Framework, and Spring Boot.
• Basic experience with Node.js and TypeScript.
• Experience with Microservices Architecture, Event-Driven Architecture, and REST APIs.
• Strong understanding of system architecture and business requirements.
• Hands-on experience with Kafka and RabbitMQ.
• Experience with PostgreSQL, Cassandra, Redis, or similar relational/NoSQL databases.
• Experience with Docker, Kubernetes, Microsoft Azure, and Azure IoT Hub.
• Experience with CI/CD, DevOps practices, and modern observability tools.
• Experience using AI-assisted development tools such as GitHub Copilot, Microsoft Copilot, Cursor, or similar.
• Excellent problem-solving, communication, and collaboration skills.

Nice to have:

• Experience working with operational and time-series data.
• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related field.

Please note: We are open to considering candidates based abroad; however, cooperation is available only under Ukrainian contracting arrangements.