Jobs at Djinni

We are looking for a Manual QA Engineer. If you love digging into mobile apps, chasing down bugs before users ever see them, and want your work to directly shape the quality of a product used by hundreds of thousands of people every day, this role is for you. You will join a QA team covering iOS, Android, WEB and backend, working shoulder to shoulder with developers and product managers on one of our fastest-growing live-streaming products. From API and DB testing to A/B experiments and full regression cycles, you will own quality end-to-end and have real influence on how features ship.

About our product: We are building one of the most powerful live-streaming platforms, already connecting 400K+ monthly active users through live events, interactive video chats, and real-time community experiences. Our mission is bold: bring joy, fight loneliness, and deliver safe, ad-free entertainment that keeps people coming back. This is a complex, fast-moving space, and we love it that way! So, you will join a passionate, expert team tackling everything from scaling AI-powered recommendations to launching high-impact, data-driven features that boost monetization and engagement. Every idea counts here, and every release reaches a massive global audience. We are now expanding into Arab countries and Europe, enhancing content quality, and rolling out new features to keep users hooked. We are among the Top 5 streaming products in the US and rank in the Top 10 worldwide. Our next milestone: break into the global Top 5, and we are moving fast to make it happen. Are you in?

In this role, you will

• Perform manual testing of backend and frontend using API tools and databases on mobile/WEB applications
• Conduct smoke, sanity, and regression testing of APIs for mobile (iOS/Android)/WEB applications
• Create test documentation (test cases, bug reports, checklists)
• Take part in Scrum and SDLC activities
• Run A/B testing
• Investigate and report bugs
• Own functional testing of new features as a QA feature owner

It's all about you

• 2+ years of mobile and backend testing experience
• Proficiency with API tools such as Postman and Swagger
• Familiarity with proxy debugging tools (Postman, Charles, Fiddler, or similar)
• Experience with MongoDB Compass or another database (MySQL, PostgreSQL) for querying, deleting, and editing data
• Experience with Grafana, Kibana, Amplitude, or other logging/analytical systems
• Quick grasp of new ideas and concepts
• Proficiency in Jira and Confluence
• Understanding of Scrum processes
• Skill in analyzing requirements
• Experience with A/B testing
• English language proficiency at an Intermediate level or higher

Would be a plus

• MongoDB Compass testing experience
• Marketing/analytics testing experience
• Experience collaborating with a Product Support team

What we offer

Care and support:

• 20 paid vacation days, 15 sick leave days, and 6 additional days off for family events
• 100% medical insurance coverage
• Sports and equipment reimbursement
• Team building events, corporate gifts, and stylish merch
• Financial and legal support
• Maternity Recovery Support Allowance
• Position retention and support for those who join the Armed Forces of Ukraine
• Participation in social initiatives supporting Ukraine

Comfortable working environment:

• Work from our Kyiv hub or remotely with a flexible schedule
• Modern equipment or depreciation of your own tools

Investment in your future:

• Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
• 70% of our heads and leads have grown into their roles here – so can you!
• Performance-oriented reviews and Individual Development Plans (IDPs)
• Reimbursement for professional courses and English classes
• Corporate library, book club, and knowledge-sharing events
• AI is an integral part of our work culture. We invest in modern AI tools, equip our teams with the skills to use them effectively, and foster an environment where technology helps people achieve better results faster

Hiring process

• Intro call
• Technical interview
• Test task
• Bar-raising interview
• Reference check
• Offer

We are looking for a Manual QA Engineer to join a team where your testing directly protects the experience of a multimillion-user audience. You will validate everything from analytics and API integrations to complex marketing logic and A/B experiments across several internal brands, gaining hands-on exposure to high-load systems most junior QAs only read about. This is a role for someone eager to go beyond the UI, dig into databases and backend logic, and grow into cross-project or automation testing over time.

About the company: We are a global IT product company shaping the future of real-time social connection. We have millions of users across North America, Europe, Latin America, and MENA, and we build next-gen mobile and web apps for the live-streaming and social networking niches. The market will exceed $206 billion by 2030, and we are already among the leaders in the industry. Founded in Ukraine, scaling worldwide. Are you in?

In this role, you will

• Perform manual testing of web applications using API tools and databases
• Test marketing logic, personalization flows, and A/B experiments
• Run smoke, sanity, and regression testing of WEB applications
• Create test documentation: test cases, bug reports, and checklists
• Work within SCRUM and SDLC processes
• Collaborate with backend and mobile teams on cross-platform flows
• Investigate and report bugs with clear reproducibility
• Build and maintain testing reports
• Contribute ideas for improving testing speed and quality
• Conduct functional testing of new features

It’s all about you

• At least 6 months of experience in manual testing of web applications, including work with API testing tools and databases
• Experience with cross-platform/browser testing (web, iOS, Android)
• Hands-on experience with databases
• Hands-on experience with API testing
• Experience with test management systems (Qase, TestRail, or similar)
• Proactive, quick to learn, with strong critical thinking
• Organized and results-oriented
• English at Intermediate level or higher

Would be a plus

• Experience testing with MongoDB Compass
• Experience with proxy debugging tools (Charles, Fiddler, Proxyman) 
• Experience with marketing-related testing

What we offer

Care and support: 

• 20 paid vacation days, 15 sick leave days, and 6 additional days off for family events
• 100% medical insurance coverage
• Sports and equipment reimbursement
• Team building events, corporate gifts, and stylish merch
• Financial and legal support
• Maternity Recovery Support Allowance
• Position retention and support for those who join the Armed Forces of Ukraine
• Participation in social initiatives supporting Ukraine

Comfortable working environment:

• Work from our Kyiv hub or remotely with a flexible schedule
• Modern equipment or depreciation of your own tools

Investment in your future:

• Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
• 70% of our heads and leads have grown into their roles here – so can you!
• Performance-oriented reviews and Individual Development Plans (IDPs)
• Reimbursement for professional courses and English classes
• Corporate library, book club, and knowledge-sharing events

Hiring process

• Intro call
• Interview with Hiring Team
• Reference check
• Offer

We are looking for a Head of Revenue Growth. You will own the full revenue engine across a portfolio of mature, monetizing platforms in social discovery and live-streaming, not one funnel, not one channel, but the whole picture. That means P&L accountability, paid acquisition across mobile and web, monetization strategy, product growth experiments, and the unit economics that tie it all together. You will work directly with the CEO, Head of Marketing, Head of DS & AI, and five Product Owners . We move fast, cut through bureaucracy, and give real ownership to people who can handle it. If that sounds like your kind of environment, read on.

About United Tech: We are a global IT product company building the next generation of mobile and web platforms in live-streaming and social networking. Our products connect millions of users across North America, Europe, LATAM, and MENA, and we have been profitable doing it. Founded in Ukraine, operating worldwide, with a market we expect to exceed $206B by 2030. We are not chasing that number, we are already in the middle of it.

In this role, you will

• Own the full revenue funnel and its P&L from acquisition to repeat payments — accountable to ROAS LT0/LT7/LT30 targets and blended payback
• Develop and execute the revenue growth strategy across paid traffic (mobile + web), product growth, and monetization, owning channel mix, budget allocation, and scaling decisions
• Generate, prioritize, and validate growth and monetization hypotheses with Product and Tech, driving prioritization of Product Owner backlogs for growth work
• Lead A/B and multivariate testing across onboarding, activation, paywalls/coin-packs, and pricing
• Own unit economics (CAC, LTV, ARPU, ARPPU, ROAS, payback) and the cohort LTV model; ensure scalable, margin-aware growth given streamer revshare
• Partner with Payments and Risk to maximize payment conversion and approval rates, and expand margin-accretive web/direct billing

• Build revenue dashboards and a single source of truth for performance metrics, with shared metric definitions and transparency across teams

   

It's all about you

• Strong hands-on experience in growth / performance marketing for dating, social discovery, live-streaming, or IAP products, across both mobile apps and web funnels
• Demonstrable strong command of unit economics (CAC, LTV, ARPU, ARPPU, ROMI, payback, contribution margin) — able to build the model, not just read it
• Proven experience scaling paid acquisition on mobile and web: Google, Meta, TikTok, and programmatic/DSP (e.g., Moloco) are a strong advantage
• Solid experience with A/B testing, experimentation frameworks, and funnel optimization
• Strong analytical foundation: SQL and BI tools (e.g., Looker/Tableau), cohort analysis, predictive LTV; working knowledge of mobile attribution/MMP (AppsFlyer/Adjust), web analytics and server-side tracking (GA4, Meta CAPI), web2app deep-linking, and incrementality testing
• Experience managing growth, marketing, or media-buying teams
• Advanced user of Anthropic and OpenAI tools
• Fluent in English (B2+) and Ukrainian

Would be a plus

• Experience in payments, payment product management, or working closely with PSP/acquiring teams

What we offer

Care and support:

• 20 paid vacation days, 15 sick leave days, and 6 additional days off for family events
• 100% medical insurance coverage
• Sports and equipment reimbursement
• Team building events, corporate gifts, and stylish merch
• Financial and legal support
• Maternity Recovery Support Allowance
• Position retention and support for those who join the Armed Forces of Ukraine
• Participation in social initiatives supporting Ukraine

Comfortable working environment:

• Work from our Kyiv hub or remotely with a flexible schedule
• Modern equipment or depreciation of your own tools

Investment in your future:

• Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
• 70% of our heads and leads have grown into their roles here – so can you!
• Performance-oriented reviews and Individual Development Plans (IDPs)
• Reimbursement for professional courses and English classes
• Corporate library, book club, and knowledge-sharing events

Hiring process

• Intro call
• Interview with the hiring team
• Bar-raising interview
• Reference check
• Offer

Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries.

About the Role

As a Block-Builder Engineer, you will take ownership of a production-grade, low-latency block-building platform and the systems around it.

You will work on the critical seal-and-submit path, block construction and bidding algorithms, parallel transaction simulation, secure builder-to-relay communication, and the off-chain logic supporting a new on-chain lending protocol and a trust-minimized TEE-based execution model.

A major part of the role is solving complex, open-ended engineering problems: improving bidding speed and efficiency, enabling capital to be safely borrowed and repaid within a single block, and creating mechanisms that prove correct system behavior without exposing competitive advantages.
 

Key Responsibilities

• Build and improve order-flow ingestion, bundle and transaction processing, relay submission flows, back-pressure mechanisms, and reintegration of channels into block construction.
• Develop and maintain observability tooling using Grafana, Prometheus, Loki, and SQL-based analytics, while identifying inaccurate or misleading metrics and dashboards.
• Design and execute production experiments, including A/B testing, data extraction, analysis, and clear reporting of results.
• Investigate and resolve production issues such as panics, dropped messages, latency regressions, and other reliability problems.
• Write tests and safeguards to prevent recurring failures and performance regressions.
• Contribute to optimization-driven block construction, protocol-level logic, and execution extensions such as BEX.
• Support the intrablock lending protocol by implementing both off-chain and on-chain components within the trusted-execution environment.
• Gradually expand into the exchange layer, building and maintaining high-throughput services that interact with trading systems.
   

Required Competence and Skills

• 2–4+ years of professional software engineering experience, including hands-on experience shipping and operating production systems.
• At least 2 years of experience working with Ethereum or other EVM-compatible blockchain protocols.
• Production experience with Rust is a strong advantage. Strong backend or systems engineering experience with Go, C++, or Java can also be considered if you are motivated and able to ramp up quickly in Rust.
• Experience working with concurrent, performance-sensitive, or real-time systems and confidence navigating a large existing codebase.
• Strong data skills, including SQL and experience using databases, logs, and production data to investigate system behavior and measure the impact of changes.
• Ability to use Python for analysis, automation, or internal tooling.
• Familiarity with monitoring and analytics tools, or a willingness to learn them, together with the ability to critically evaluate the accuracy of metrics and dashboards.
• A careful, data-driven engineering approach: validating assumptions, thoroughly testing changes, and distinguishing verified findings from hypotheses.
• Strong curiosity and ownership mindset, with an interest in understanding why production metrics change, identifying root causes, and iterating on solutions.
• Fluent English and willingness to work within Eureka Labs’ hybrid, office-first model in Poland.
   

Nice to Have

• Knowledge of or interest in Ethereum PBS, MEV, smart contracts, or trading systems.
• Experience with high-throughput data pipelines, time-series workloads, or large-scale analytics systems.
• Familiarity with reth, geth, or revm internals.
• Experience running production services with Kubernetes or Docker.

An ambitious SBSB FinTech Lawyers company that combines advanced financial technology and legal knowledge is looking for a Lawyer!
We help clients navigate the complex world of finance and law by providing innovative solutions in leading industries.

Requirements

• 2+ years of experience in iGaming/Investments. Consulting experience is prioritized
• English level B2+ (spoken and written), fluent Russian and Ukrainian
• Experience consulting clients and conducting negotiations, participating in meetings and conference calls with clients from CIS countries, EU, and Asia
• Experience managing multiple clients simultaneously, readiness for multitasking (prioritization and deadline management)
• Project management skills and practical experience managing multiple legal projects
• Experience leading small legal teams (managerial skills)
• Deadline and risk management, timely escalation of complex issues and independent problem-solving
• Involvement in sales processes, increasing company solutions sales to clients with sales team support
• Proficient file management and drafting of legal and regulatory documentation

Responsibilities

• Conduct consultations with clients (startups or operating companies), including preparation of legal opinions and follow-ups
• Mentor junior lawyers, perform head of practice functions
• Provide 360° legal support to 50+ clients and promptly resolve their inquiries
• Register companies in various jurisdictions worldwide, provide legal support for licensing processes in iGaming, Brokerage, and Investments sectors
• Draft various legal documents (policies, legal opinions, etc.) and contracts
• Collaborate with partners, establish partnership programs
• Open accounts for businesses of varying risk levels (low risk, mid risk, high risk)
• Prepare legal consultations, draft legal documents, proposals, and responses to client requests
• Communicate with government authorities, regulators, foreign banks, lawyers, accountants, and notaries
• Conduct legal audits, due diligence, and counterparty verification

What We Offer

• Fully remote work format
• Competitive salary and motivation system
• Opportunities for professional growth
• Dynamic team environment
• Corporate training and payment for individual training
• Comprehensive health insurance
• Young and friendly SBSB family!

Readdle builds productivity apps used by tens of millions of people worldwide, including Spark (a smart email client) and Calendars (a flexible calendar and task planner). We're looking for a senior ASA & ASO Manager to own paid and organic App Store growth for these two products.

What you'll do

• Own the Apple Search Ads strategy for Spark and Calendars end-to-end: keyword research, campaign structure, bidding, budget allocation, and scaling across markets.
• Continuously test and optimize campaigns to hit target CPA/ROAS and volume goals.
•  Drive the ASO strategy for both products, including keyword research, metadata optimization, localization, and conversion rate optimization through creative assets and product page experimentation.
• Monitor rankings, category placement, competitor activity, and App Store algorithm changes; turn findings into action plans.
• Partner with Product, Design, Marketing, and Data/Analytics teams to align ASA/ASO efforts with broader growth and monetization goals.
• Build and maintain reporting dashboards; report regularly on spend, installs, CPA, conversion rate, keyword rankings, and overall ASA/ASO performance.
• Manage budgets across multiple markets and prioritize investment based on performance and opportunity.
• Stay current on Apple's ad platform updates, App Store policy changes, and industry best practices.

About you:

• 4+ years of hands-on experience running Apple Search Ads campaigns at scale, ideally for consumer mobile apps.
• Solid, proven track record in App Store Optimization: keyword research tools  (AppTweak, Sensor Tower, FoxData, or similar), metadata optimization, and creative testing.
• Strong analytical skills; comfortable working with App Store Connect, MMPs (Adjust, AppsFlyer, or similar), and BI tools to make data-driven decisions.
• Experience managing meaningful ad budgets and multi-market campaigns.
• Understanding of mobile app funnels, LTV, CPA, and how ASA/ASO connects to broader user acquisition and monetization strategy.
• Excellent English communication skills; comfortable presenting results and recommendations to cross-functional stakeholders.
• A structured, hypothesis-driven approach to testing, plus curiosity to keep experimenting as the App Store evolves.

What you will get at Readdle:

• Customer-centric culture. We put our users at the heart of everything we do. Every team member has the opportunity to engage directly with customers, gaining insights that shape meaningful, delightful experiences for millions worldwide.
• Relentless growth. We’re committed to mastery in our craft. We take ownership of our work, decisions, and outcomes, and we see feedback as a catalyst for growth. Every challenge is an opportunity to learn, evolve, and raise the bar.
• Exceptional people, exceptional team. Our greatest strength is our people. We care deeply about each other, work transparently, and celebrate collective success. Together, we build an environment where everyone can do their best work and grow beyond their potential.
• Real impact. We design products that truly matter. Our focus is on delivering tangible value, simplifying complexity, pushing boundaries, and continuously improving how we build and deliver solutions to our users.
• Culture of innovation. We embrace curiosity and creativity in everything we do. Fresh ideas are not just welcomed, they’re expected, celebrated, and turned into real innovations that shape the future of our products and company.

RedCore is an international business group that creates technological solutions for digital markets. 

Our products and services cover fintech, marketing, e-commerce, customer service, communications, and regulatory technologies.

Powering Growth from the Core — this is the key mission laid under RedCore’s strong foundation. This is how we consistently stay ahead: by evolving and creating scalable solutions, while remaining committed to open and transparent communication with our partners.

We’re looking for a sharp and driven HR Business Partner to join our team!

Requirements:

- 3+ years of experience in an HR Business Partner role;

- Experience in managing small HR teams will be a significant advantage;

- English proficiency at B1/B2 level or above;
- Exceptional communication skills, with the ability to build meaningful and authentic relationships with diverse personality types;
- Strong active listening, negotiation and presentation skills, fostering an environment where all parties feel valued and understood;
- Strong business partnering mindset with the ability to build trusted relationships and communicate confidently with senior leaders, including C-level stakeholders;
- Proficiency in using Google Docs and Sheets as integral tools in daily tasks, managing them with ease and efficiency;
- A proactive and collaborative approach, with a willingness to contribute to both large initiatives and day-to-day tasks.
 

Responsibilities:

- Provide end-to-end HR support for the HR Service teams, ensuring high-quality and timely delivery of all core HR processes;
- Participate in the development, implementation, and regular review of HR policies and procedures, adapting them to the needs of the HR Service teams;
- Advise and support employees and managers throughout all HR processes, ensuring a consistent and high-quality employee experience;
- Act as an HR Business Partner for the HR Service teams, partnering with managers and the CHRO on people and organizational matters. Guide and support managers in effectively leading and developing their teams;
- Regularly monitor employee engagement and satisfaction, identify improvement areas, and implement initiatives to enhance the overall employee experience;
- Serve as a trusted advisor to employees on HR and organizational matters, providing timely guidance and support;
- Develop and implement initiatives aimed at strengthening the company culture and employer brand;
- Identify the needs of the HR Service teams and implement targeted initiatives to improve team effectiveness and support their development;
- Organize internal events designed to strengthen team collaboration, recognize achievements, and reinforce the company's culture and values;
- Use HR analytics and key people metrics to identify trends, assess risks, and provide data-driven recommendations to managers and the CHRO.

Our benefits to you:

- Modern corporate equipment based on macOS or Windows and additional equipment are provided;

- Paid vacations, sick leave, personal events days, days off;

- 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;

- In-house Travel Service;

- Multiple internal activities;

- Other benefits could be added based on your location.

ABOUT OUR CLIENT

Our client is a leading enterprise data platform company building an open, high-performance data lakehouse for AI and analytical workloads. The platform combines an intelligent SQL query engine, an AI-ready semantic layer, and an open catalog built on Apache Iceberg — enabling Fortune 500 companies across finance, energy, manufacturing, and logistics to unify, query, and govern data at massive scale across cloud and on-premise sources.

ABOUT THE ROLE

We are looking for a Senior Software Engineer for the connectivity stack of a large-scale data platform. The work spans three areas:

• Client connectivity — drivers and client libraries used by applications and BI tools
• Source connectivity — connectors to databases and data systems, including authentication, metadata discovery, and query/data pushdown, with certification and upgrade support
• Agent & service connectivity — tool interfaces and integrations for AI-agent access to the platform

Deep expertise in one of these areas is enough — you'll grow into the adjacent ones over time. This is a role for an engineer who cares about API and protocol stability, backward compatibility, and interoperability with the tools enterprises actually use. You will lead the design and delivery of substantial components, working within an established architecture alongside US-based engineering reviewers.

This is a systems-level, backend engineering role focused on drivers, protocols, and distributed services — not application development or CRUD services.

RESPONSIBILITIES

• Lead the design and delivery of connectivity components — client drivers, source connectors, and service integrations — turning ambiguous initiatives into well-scoped, reviewable milestones
• Produce technical designs, explain architectural trade-offs, and surface compatibility, security, and delivery risks early
• Maintain backward compatibility and API/protocol stability; build compatibility, interoperability, and performance test suites
• Develop and maintain connectors for major BI tools, collaborating with the technology partners behind them
• Diagnose complex client/server, protocol, and distributed-system failures; drive root-cause analysis of customer-reported and escaped defects
• Improve diagnostics, logging, observability, and supportability of the connectivity stack
• Contribute upstream to open-source projects (e.g., Apache Arrow) where agreed
• Mentor engineers, participate in code and design reviews, and communicate progress and risks clearly across a distributed team

REQUIRED QUALIFICATIONS

• B.S. or M.S. in Computer Science, Computer Engineering, or a related field — or equivalent practical experience
• 8+ years of production software engineering experience
• Deep proficiency in Java or C++, and the ability to work effectively in another systems/services language
• Experience designing and debugging APIs, protocols, client libraries, or distributed services
• Strong fundamentals: data structures, concurrency, asynchronous programming, networking, and failure handling
• A track record of comprehensive testing — unit, integration, compatibility, and performance
• Experience with production CI/CD, release processes, and engineering quality controls
• Working knowledge of SQL
• Comfortable with AI-assisted development workflows — using modern AI tools productively while critically validating their output
• Clear written and verbal communication in a distributed engineering environment; English Upper-Intermediate or higher (B2+)
• Availability to work EU business hours shifted 2–3 hours later for daily overlap with US West Coast mornings

DESIRED SKILLS

• JDBC, ODBC, ADBC, or database-driver development experience
• Apache Arrow (including Arrow Flight)
• SQL engines, databases, or data platforms
• Source-connector development for databases, warehouses, or SaaS systems
• MCP or agent-tool integrations
• OAuth, OIDC, TLS, and enterprise authentication flows
• Cross-platform native build, packaging, and release experience
• BI-tool interoperability (Power BI, Tableau) and partner collaboration
• Observability and production diagnostics
• Open-source contribution experience

DETAILS

• Engagement: Long-term contract
• Location: Europe (EU / EEA / UK), remote
• Working hours: EU business hours, shifted 2–3 hours later for daily overlap with the US West Coast team

About the position

We are looking for a Middle UAV Systems Engineer to strengthen the engineering team developing, integrating, configuring, and testing onboard UAV systems.

The role combines embedded software development, UAV avionics, hardware integration, and practical system testing. You will work with onboard computers, flight controllers, sensors, communication interfaces, and related software, helping ensure that individual components work together as a reliable UAV system.

The position is highly hands-on and requires an engineering mindset: the ability to work with real hardware, analyze test results, troubleshoot issues, and iteratively improve the system through bench, simulation, and flight testing.

Must have skills:

• Middle-level experience in embedded software, robotics, UAVs, or a related engineering field
• Good C/C++ skills
• Good Python skills
• Linux / Embedded Linux
• Hands-on experience with microcontrollers and embedded computers / SBCs
• Understanding of digital and analog electronics fundamentals
• Ability to read schematics and datasheets
• Experience with at least some common embedded interfaces: UART, CAN, I2C, SPI, USB, Ethernet
• Hands-on experience integrating sensors or peripheral equipment
• Understanding of flight-controller principles
• Practical familiarity with ArduPilot, PX4, or similar autopilot systems
• Understanding of MAVLink or the ability to become productive with it quickly
• Understanding of UAV navigation and control principles
• Practical hardware/software debugging skills
• Willingness to work not only with code but directly with hardware and to participate in flight testing

Your tasks will include:

• Integrate flight controllers and onboard computers
• Work with ArduPilot and/or PX4
• Develop software in C/C++ and Python
• Work with Linux / Embedded Linux
• Integrate IMUs, GNSS receivers, compasses, barometers, RGB/EO cameras, thermal cameras, and other sensors
• Integrate NVIDIA Jetson, Raspberry Pi, and similar SBCs
• Work with UART, CAN, I2C, SPI, USB, and Ethernet
• Work with MAVLink
• Configure and customize Mission Planner / QGroundControl
• Integrate CV/navigation software with the flight controller
• Develop supporting embedded and diagnostic tools
• Analyze telemetry and flight logs
• Troubleshoot hardware/software integration issues
• Prepare equipment for bench, simulation, and flight testing

We offer:

• Delivering high-end software projects that address real-world problems
• Surrounding experts who are ready to move forward professionally
• Professional growth plan and team leader support
• Taking ownership of R&D and socially significant projects
• Participation in worldwide tech conferences and competitions
• Taking part in regular educational activities
• Being a part of a multicultural company with a fun and lighthearted atmosphere
• Working from anywhere with flexible working hours
• Paid vacation and sick leave days
• Preferred location: Kyiv or Kyiv region, or willingness to relocate to Kyiv / Kyiv region

Overview

We're looking for backend developers for our client’s iGaming project. This could be a small team of around 4 people, or we could hire people separately to work together as a team.

Tasks vary, but it's mostly building new software. One example: backend for betting/sports software for land-based terminals. Using AI agents/agentic tools daily is a must — you'll need to show real examples of what you built with them.

Scope of Work

• Mostly building new software for a variety of projects, not maintenance-only
• Use AI agents/agentic tools as a core part of your daily work

Duration:

• Full-time, remote. We’re looking for long-term collaboration.

Requirements

• Solid backend development experience — Java, Go, or Kotlin
• Real, daily use of AI agents/agentic tools, with concrete examples of what you built with them
• Comfortable building new software from scratch, not just maintaining existing systems
• Conversational English (B2+)

Selection Process

1. Introductory Interview
2. Client Interview
3. Test Task

Submission Guidelines

If you’re a solo developer 

• Please submit your up-to-date CV and a short cover letter covering:

– Why this project interests you

– Your experience creating software from scratch

– What AI agents/agentic tools you use in your daily work, with a specific example of what you built with them

– Your availability

If you’re applying as a team:

• Submit a CV or short overview for each person, or a shared presentation/site - whatever works best
• Details regarding your desired payment structure and fees
• Attach a few examples of what your team has built using AI agents/agentic tools (links, repos, etc.)

We’re looking forward to hearing from you!

About the position

We are looking for a Senior UAV Systems Engineer to take ownership of the technical integration of complex autonomous UAV systems. The role sits at the intersection of UAV engineering, embedded software, avionics, electronics, robotics, and system integration.

You will work across the major layers of the platform — from flight controllers, embedded computers, sensors, cameras, and communication links to Linux applications, MAVLink, ground control software, and onboard autonomy. A key part of the role is understanding how these components interact, troubleshooting issues across hardware and software boundaries, and ensuring that the integrated system performs reliably in simulation, on the bench, and in flight.

We are looking for a hands-on engineer with a strong systems mindset who can own complex technical problems and bring solutions from initial integration through to reliable onboard operation.

Must have skills:

• Senior-level hands-on experience developing and integrating embedded, robotic, or UAV systems
• Real practical experience working with UAVs
• Deep understanding of UAV architecture and flight-controller principles
• Hands-on experience with ArduPilot and/or PX4
• Understanding of flight modes, navigation, attitude/position control, mission execution, failsafe logic, sensor calibration, and state estimation.
• Hands-on MAVLink experience
• Demonstrably strong C/C++ skills
• Demonstrably strong Python skills
• Linux / Embedded Linux
• Hands-on experience with microcontrollers and embedded computers / SBCs
• Experience integrating electro-optical cameras and working with thermal cameras or other imaging sensors
• Understanding of digital and analog electronics
• Ability to read schematics and datasheets
• Ability to independently design relatively simple additional digital or analog circuitry at schematic level when required
• Hands-on hardware debugging using oscilloscopes, multimeters, logic analyzers, and serial/CAN interface tools
• Practical experience with QGroundControl and/or Mission Planner
• Willingness and ability to work directly with hardware and participate in field and flight testing

Your tasks will include:

• Design onboard UAV system architecture
• Integrate flight controllers, onboard computers, EO/thermal cameras, and other sensors
• Integrate autonomous navigation, Computer Vision, and guidance software with the flight controller
• Work with ArduPilot and/or PX4, MAVLink, telemetry, and mission logic
• Develop embedded software in C/C++ and Python for Linux / Embedded Linux and microcontrollers
• Integrate IMUs, GNSS receivers, magnetometers, barometers, cameras, and other navigation sensors
• Work with UART, CAN, I2C, SPI, USB, Ethernet, and other embedded interfaces
• Integrate NVIDIA Jetson, Raspberry Pi, and similar ARM/Linux platforms
• Work with camera interfaces, video pipelines, and streaming
• Customize and integrate QGroundControl and Mission Planner
• Develop diagnostic and service tools
• Analyze telemetry and flight logs and troubleshoot issues across software, electronics, sensors, communications, and configuration
• Prepare and conduct bench, SITL/HITL, and flight testing
• Select components and make system-architecture decisions

We offer:

• Delivering high-end software projects that address real-world problems
• Surrounding experts who are ready to move forward professionally
• Professional growth plan and team leader support
• Taking ownership of R&D and socially significant projects
• Participation in worldwide tech conferences and competitions
• Taking part in regular educational activities
• Being a part of a multicultural company with a fun and lighthearted atmosphere
• Working from anywhere with flexible working hours
• Paid vacation and sick leave days
• Preferred location: Kyiv or Kyiv region, or willingness to relocate to Kyiv / Kyiv region

ZentixSoft is looking for a Senior Data Architect! 🚀

Format: Full-Time Outstaffing, long-term remote engagement. You will take full end-to-end ownership of target-state data architecture across multi-cloud environments.
 

💡 Why ZentixSoft?
 💸 Salary Review: A structured system of compensation reviews aligned with your engineering growth. 
⚖️ Work-Life Balance: Sustainable workflows with no senseless overtime, helping you keep your resource fully charged. 
🦾 Trust and Transparency: Zero micromanagement and no invasive time-trackers—we fully trust your professional autonomy. 
🎁 Gifts & Culture: Corporate gifts for holidays, birthdays, and a true team atmosphere where your voice always matters.
 

🧩 Responsibilities:

• Architecture Ownership: Define and own the target-state data architecture across both AWS and Azure cloud environments.
• Platform & Processing Design: Architect enterprise data lakes/warehouses, storage layers, ingestion patterns, and processing frameworks utilizing distributed systems (Spark).
• Governance & Security: Establish enterprise data governance, security, compliance, and access-control standards across both cloud ecosystems.
• Tool & Vendor Evaluation: Evaluate tools/services across AWS and Azure, balancing performance, scalability, maintainability, and cloud costs.
• Technical Leadership & Delivery: Provide architectural oversight and detailed technical documentation to engineering leads during implementation, supporting cloud migration and multi-cloud integration initiatives.

🎓 Requirements:

• Architect Experience: 8+ years in data architecture and engineering, with clear senior/lead-level design responsibility and platform ownership.
• AWS Stack: Deep hands-on architecture experience with AWS (S3, Redshift, Glue, Lake Formation, Athena).
• Azure Stack: Deep hands-on architecture experience with Azure (ADLS, Synapse, Data Factory, Databricks).
• Data Engineering Core: Mastery of data modeling, ETL/ELT pipelines, distributed data processing (Spark), and enterprise data lakes/warehouses.
• Governance & Migrations: Proven track record leading multi-cloud integrations, cloud migrations, and establishing data security and governance standards.
• Communication: Excellent stakeholder communication skills to present architectural decisions to both technical teams and business leadership.
   

➕ Nice to Have:

• Cloud Certifications (AWS Certified Solutions Architect, Azure Solutions Architect Expert).
• Experience with Data Mesh or Domain-Driven Data Architecture.
• Experience in regulated industries (Finance, Healthcare, etc.).
   

📍 Project Details:

⏳ Duration: Long-term (Full-time).

📍 Location: Fully Remote.

About the position

We are looking for a Middle Data Science / Computer Vision Engineer to join a team developing autonomous UAV capabilities for challenging operating environments, including scenarios with limited or unavailable GNSS and operator connectivity.

The role is focused on Computer Vision and Machine Learning for real-world autonomous systems. You will work on algorithms for optical navigation, object detection and tracking, and other perception tasks, with a strong emphasis on deployment to onboard computing platforms and validation in simulation, on the bench, and during flight tests.

We are looking for an engineer who is comfortable working beyond the model itself - analyzing system behavior, investigating test results, identifying root causes, and turning prototypes into reliable solutions that can operate on real UAV platforms.

Must have skills:

• Middle-level experience: approximately 2+ years of practical Data Science / Machine Learning experience with Computer Vision as the primary specialization
• Strong Python skills
• Hands-on experience with PyTorch and/or TensorFlow
• Hands-on OpenCV experience
• Good understanding of modern CNN- and Transformer-based CV architectures
• Practical experience in several of the following areas: object detection, object tracking, classification, segmentation, feature extraction/matching, image registration, motion estimation
• Understanding of Computer Vision geometry: camera models, coordinate systems, camera calibration, transformations, and projective geometry
• Good foundation in linear algebra, probability, and statistics
• Experience with Linux, Git, and sound software engineering practices
• Ability to work with imperfect real-world data collected from field systems and flight tests
• At least an Upper-Intermediate level of English (spoken and written)

Your tasks will include:

• Develop and improve Computer Vision algorithms for UAV applications
• Develop object detection, classification, and tracking algorithms
• Work on optical navigation, Visual Odometry / Visual-Inertial Odometry, feature matching, image registration, and visual localization
• Train, fine-tune, and evaluate models using proprietary datasets
• Build and optimize real-time CV pipelines
• Optimize inference for edge platforms with limited compute resources
• Integrate DS/CV components with navigation, flight controllers, telemetry, and guidance logic
• Participate in simulation, bench, and flight testing
• Analyze failed tests and algorithm degradation, and improve robustness

We offer:

• Delivering high-end software projects that address real-world problems
• Surrounding experts who are ready to move forward professionally
• Professional growth plan and team leader support
• Taking ownership of R&D and socially significant projects
• Participation in worldwide tech conferences and competitions
• Taking part in regular educational activities
• Being a part of a multicultural company with a fun and lighthearted atmosphere
• Working from anywhere with flexible working hours
• Paid vacation and sick leave days

Overview

We're looking for SysOps/DevOps engineers for our client’s iGaming project. This could be a small team of around 2-3 people, or we could hire people separately to work together as a team.

The first task is auditing an existing setup — servers first, then security. You'll be looking for what's misconfigured, outdated, or exposed. You should already be using AI agents/agentic tools in your daily work, not just trying them out.

Scope of Work

• Audit the client's server infrastructure — inventory, configuration, health, gaps
• Audit the current security setup — vulnerabilities, misconfigurations, hardening gaps
• Use AI agents/agentic tools as part of the day-to-day audit and remediation work
• Likely continue into ongoing SysOps/DevOps work after the audit — details will be discussed

Duration:

• Full-time, remote. We’re looking for long-term collaboration.

Requirements

• Around 3+ years of hands-on SysOps/DevOps experience
• Real, practical experience auditing servers and/or security systems (vulnerability assessment, configuration review, hardening)
• Comfortable with core SysOps/DevOps tools: Linux/Unix, a cloud platform (AWS/GCP/Azure or similar), CI/CD, infrastructure-as-code, containers, monitoring, networking basics
• Actively using AI agents/agentic AI tools in your daily work
• Conversational English (B2+)

Selection Process

• Introductory Interview
• Client Interview
• Test Task

Submission Guidelines

If you’re a solo developer 

• Please send your up-to-date CV and a short cover letter covering:

– Why this project interests you

– An example of a server/security audit you personally led

– The AI agents/agentic tools you use in your daily work

– Your availability

If you’re applying as a team:

• Submit a CV or short overview for each person, or a shared presentation/site - whatever works best
• Details regarding your desired payment structure and fees

We’re looking forward to hearing from you!

Role: DevOps Engineer (Senior Level)

Experience: 8+ years, combined development and systems administration

Duration: 6 months, with a good chance of extension based on performance

Location: Southern & Eastern Europe

A bit of context: Our client is a large international organization looking for a strong DevOps engineer, someone who's also comfortable on the development side and knows their way around infrastructure and newer tech (Kubernetes, AI/ML, Linux/UNIX). They'll be joining a mixed team of backend, frontend, and mobile developers, plus systems engineers, working on some genuinely interesting projects.

What they'll be doing:

- Architecting new services with the latest tech

- Designing and building infrastructure for new projects

- Integrating with third-party APIs

- Deploying services on AWS

- Building out CI/CD pipelines

- Monitoring and performance tuning

- Managing container orchestration (Kubernetes)

Must-haves:

- Hands-on experience with Docker and Kubernetes in production

- Solid grasp of CI/CD and automated deployments

- Strong infra background (Linux, Docker, AWS/Azure, Kubernetes)

- Comfortable with IaC tools like Terraform or CloudFormation, plus monitoring tools like Prometheus/Grafana

- Can code in at least one of Python, JavaScript, TypeScript, Go, or Java

- Quick to pick up new tools and technologies

Nice-to-haves:

- Good communicator, works well across cultures and time zones

- Self-starter, comfortable with minimal supervision

- Some exposure to PRINCE2/PMP, SCRUM, or Agile

- Can write clear documentation and doesn't mind running the odd training session

- AI/ML exposure, DevOps/JIRA/GitHub experience is a bonus

- Strong English; other UN languages are a plus but not required

Certifications (not mandatory, but a plus):

- AWS or Azure certs (infra, dev, or data)

- Master's in CS, Computer Engineering, or IT