Jobs at Djinni

Who We Are

We are looking for a Senior Desktop Engineer with strong WinUI 3 expertise to take ownership of our Windows desktop application and help shape a modern, high-performance medical product.

Our client is building an AI-powered medical decision-support product and is looking for a WinUI 3 Engineer to join the team and take ownership of a modern Windows desktop application.

What Youʼll Do

• Design and develop a modern Windows desktop application using WinUI 3
• Build responsive, high-performance UIs for real-time medical workflows
• Implement clean MVVM architecture and reusable UI components
• Collaborate closely with backend, AI, product, and design teams
• Improve performance, stability, and usability of the application
• Write and maintain technical documentation
  
  
  Requirements
• 3+ years of professional C# desktop development
• Strong hands-on experience with WinUI 3 (required)
• Solid understanding of MVVM architecture
• Experience with multithreading / async programming / IPC in Windows applications
• Strong knowledge of software design patterns
• Experience with unit testing in C#
• Experience building and maintaining Windows installers (MSI or similar)
• Experience working in mixed C# + Python environments (integration level)
  
  Nice-to-Have (Not Mandatory)
• Experience with Python
• Experience with REST or gRPC
• Experience in medical, healthcare, or regulated environments
• Knowledge of application security best practices
• Experience with kiosk-mode or controlled-environment applications
• Experience with distributed or real-time systems
  
  Personal
• Strong attention to detail and code quality
• Comfortable working in a startup environment
• Proactive, self-driven, and solution-oriented
• Clear communicator, able to collaborate across technical and non-technical teams
• Willingness to take ownership and influence product quality
  Why Join Us
• Work on a meaningful medical product with real clinical impact
• High level of technical ownership
• Modern stack with WinUI 3 and AI integration
• Remote-friendly, flexible environment
• Opportunity to shape the future of the desktop application architecture

COMPANY

Arcyn is a freshly funded seed stage startup. We’re creating an AI-powered compliance checker for architectural design — an Autodesk Revit plugin that automatically checks designs against regulations as they're being created. Architects get instant feedback on violations as they design in Revit, instead of waiting weeks for permit reviewers to tell them what's wrong.

We’ve just closed pre-seed round and are building core technical team. We’re now a team of 4 with a track record of building complex technical products, and we're looking for a strong AI engineer who's comfortable testing hypotheses and working across different frameworks. This is a chance to join at the ground floor, shape product architecture and solve genuinely hard AI problems.

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In this role, you'll architect AI systems from scratch and own the full development cycle, there's plenty of room for experimentation and rapid iteration. We're seeking a highly skilled AI Engineer with strong experience in orchestrating multi-step LLM workflows, automated code generation, and compliance logic formalization.

RESPONSIBILITIES: 
• Design and maintain modular, multi-step AI workflows for compliance automation. 
• Integrate multiple LLM providers (e.g., OpenAI, Anthropic, Perplexity) into a cohesive orchestration pipeline. 
• Build cost-optimized batch processing and intelligent API request strategies. 
• Translate complex regulations into structured, machine-executable logic. 
• Develop and validate automatically generated code to ensure correctness, safety, and performance. 
• Collaborate with domain experts to refine logic interpretation and edge case handling. 

• Maintain high-quality, well-structured Python codebases with clear separation of concerns. 

REQUIREMENTS  
• 5+ years of professional software engineering experience. 
• Strong Python skills, including experience writing production-grade, modular code. 
• Proven track record building multi-step LLM workflows (LangChain, LangGraph, or similar). 
• Experience in structured code generation and validation. 
• Strong debugging skills and comfort working with complex, evolving systems. 

   NICE TO HAVEs: 
   • Experience with compliance automation, technical regulations, or domain-specific rule translation. 
   • Familiarity with Pydantic models or other type-safe data management frameworks. 
   • Background in developer tooling or systems requiring high reliability and reproducibility. 
   • Experience optimizing LLM API usage for both cost and speed. 

WE OFFER:

• B2B set-up via SP account
• Full-time remote role aligned with EEST
• Be part of the team shaping a new AI product at an early stage. 
• Freedom to architect solutions using the best tools for the job. 
• Collaboration with a multidisciplinary, innovation-driven team. 
• Flexible work arrangements and competitive compensation.

PIN-UP Global is an international holding specializing in the development and implementation of advanced technologies, B2B solutions and innovative products. We provide certification and licensing of our products, providing customers and partners of the holding with high-quality and reliable solutions.

We are looking for a Security Officer to join our team!

Requirements:

- Higher education in Law or Economics;

- At least 3 years of experience in HR/internal and economic security within private enterprises;

- Proven experience in background checks of individuals and legal entities;

- Previous experience in law enforcement is a strong advantage;

- Knowledge of security systems and protocols;

- Experience collaborating with polygraph specialists;

- Strong experience working with databases;

- Proficient PC user;

- Ukrainian or Russian language C1 and above;

- Fluent English, including spoken communication;

- Willingness to travel abroad to ensure security at exhibitions and conferences.

Responsibilities:

- Conduct regular risk assessments to identify vulnerabilities and threats affecting the holding’s assets;

- Respond promptly to security-related incidents, including investigation and corrective measures;

- Prepare security status reports, analyze incidents, and develop recommendations for improvement;

- Collaborate with other departments to integrate security considerations into business processes;

- Ensure protection of personal data (GDPR compliance) and trade secrets;

- Conduct background checks during recruitment and support exit processes;

- Organize security measures during corporate events, exhibitions, and conferences.

Benefits:
☘️ An exciting and challenging job in a fast-growing product company, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and other;
🤝🏻 Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed;
📍 Beautiful offices in Warsaw, Limassol, Kyiv, Almaty, Yerevan work remotely or on-site with comfort and enjoy the opportunity to build a network of connections with professionals day by day;
🧑🏻‍💻 Modern corporate equipment based on macOS or Windows and additional equipment are provided;
🏖 Paid vacations, sick leave, personal events days, days off;
👨🏻‍⚕️ Corporate health insurance program for your well-being;
💵 Referral program enjoy cooperation with your colleagues and get the bonus;
📚 Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences;
🎯 Rewards program for mentoring and coaching colleagues;
🗣 Free internal English courses;
🧘 Yoga classes to help you stay active and energized;
🦄 Multiple internal activities: online platform for employees with quests, gamification, presents and news, PIN-UP clubs for movie and book lovers, board games cozy evenings, special office days dedicated to holidays;
🎳 Company events, team buildings.

About TechUnit

We’re TechUnit — a full-cycle digital and development agency passionate about marketing, development, and innovation.

We blend technology, creativity, and strategy to help businesses grow.

With 50+ completed projects, $2M+ raised for clients, and a team of 20+ specialists, we deliver results that make an impact.

Our projects range from SaaS platforms and digital tools to full marketing ecosystems.

We move fast, stay curious, and value people who care about both structure and creativity.

About the Role

We’re looking for a Human Resources Manager who will take ownership of our people strategy and help us build a strong, healthy, and high-performing culture.

This is not just an administrative HR role. We’re looking for someone who can actively boost and shape our company culture, improve team engagement, support leadership, and ensure we attract and retain the right talent.

You’ll work closely with leadership to align people strategy with company growth — helping us scale while protecting what makes our team strong.

Your mission is to make TechUnit a place where talented people thrive, grow, and feel proud to contribute.

What You’ll Be Doing

Talent Acquisition & Employer Branding

• Lead end-to-end recruitment processes (from role definition to onboarding).
• Help refine job descriptions and hiring processes.
• Improve candidate experience and employer branding.

• Build talent pipelines for future growth.

   

Culture & Engagement

• Develop initiatives that strengthen company culture and team connection (especially in a remote setup).
• Create systems that reinforce our values, collaboration, and accountability.
• Organize feedback loops, engagement surveys, and team rituals.
• Proactively identify morale or culture risks and address them early.

• Support leaders in building strong, motivated teams.

   

Performance & Development

• Implement performance review frameworks and growth plans.
• Help managers set clear expectations and feedback processes.
• Design professional development pathways.

• Promote a learning-oriented environment.

   

Operations & HR Structure

• Oversee onboarding and offboarding processes.
• Maintain clear HR documentation and policies.
• Ensure smooth internal communication and organizational clarity.

• Monitor team satisfaction, retention, and capacity planning.

   

Strategic HR Partnership

• Act as a trusted partner to leadership.
• Align people strategy with company goals and growth plans.

• Help scale processes without losing agility or culture.

   

You’ll Be a Great Fit If You

• You genuinely care about people — and can spot tension in a ClickUp thread before it becomes a problem.
• You believe culture is something you design intentionally, not something that “just happens.”
• You can have difficult conversations without turning them into dramatic Netflix episodes.
• You’re structured enough to build systems… but human enough to know people aren’t spreadsheets.
• You don’t wait for permission to improve things, if you see friction, you fix it.
• You’re comfortable giving feedback to both juniors and founders (yes, including us 😄).
• You know the difference between “fun culture” and “healthy culture.”
• You’re calm when things get messy, and you bring clarity instead of panic.
• You like building processes from scratch (instead of inheriting a 200-page HR manual).

• You believe retention is built daily, not during exit interviews.

   

• Bonus points if:
  • You enjoy building rituals, systems, and frameworks that actually stick.
  • You’ve worked in a fast-moving startup or agency and survived (and maybe even enjoyed it).
  • You are able to post fun meme on Friday Afternoon in our internal chans (we all do)

Why You’ll Love Working With Us

• You won’t be the “HR police.” You’ll be the culture architect. Big difference.
• If you have a great idea, we won’t say “let’s circle back next quarter.” We’ll probably say “let’s try it next week.”
• No corporate maze. No 17-step approval processes. No mysterious “global HR policy” PDFs from 2009.
• You’ll work directly with decision-makers — meaning real influence, not symbolic responsibility.
• We move fast, but not chaotically (okay… rarely chaotically 😄).
• You’ll help build a remote culture that people actually enjoy — not just tolerate.
• No awkward forced fun. If we do team rituals, they’ll make sense.
• Feedback is normal here. Drama is not.
• You’ll see the impact of your work immediately — in team morale, performance, and growth.

And yes — you’ll finally get to build the kind of HR environment you always wished existed.

Our Hiring Process

1. Share your CV and a short note about your HR experience.
2. Intro call to align expectations.
3. Practical task — culture or HR improvement scenario.
4. Call with leadership.

5. Offer & onboarding.

    

Please note that the project location is Gdansk, and it's required to visit the office 2-3 times per quarter

Job Description

Must have:

• 6+ years of professional software development experience.
• Strong experience with windows development.
• Strong understanding of software design principles, data structures, and algorithms.
• Experience working with complex, large-scale, or long-lived codebases.
• Strong problem-solving skills and attention to detail.
• Good communication skills and ability to work effectively in cross-functional teams.

Nice to Have

• Experience working on mission-critical or safety-relevant applications (aviation, navigation, defense, medical).
• Hands-on experience with C/C++ (performance-critical components, legacy code, or system-level logic).
• Hands-on experience with Swift or/and RUST
• Experience with performance profiling and optimization tools.
• Exposure to geospatial, mapping, or navigation-based applications.
• Experience working in an Agile / Scrum environment.
• Knowledge of CI/CD pipelines for mobile applications.

Job Responsibilities

Key Responsibilities:

• Application Development: Design and implement new features for the EFB application using C# and the .NET framework.
• Optimization: Ensure the application performs reliably under the hardware constraints of mobile devices (e.g., tablets), focusing on memory management and processor efficiency.
• Aviation Integration: Develop and maintain modules for complex flight-critical tasks, including weight and balance computations, fuel planning, and electronic logbook management.
• Data Management: Design and optimize local data-stores (embedded databases) for offline access to navigation charts and manuals.
  UI/UX Design: Create user-friendly interfaces tailored for cockpit environments, ensuring ease of use during critical phases of flight.
• Testing & Compliance: Conduct rigorous unit and regression testing to ensure software reliability, adhering to industry safety standards like DO-178C where applicable.
• Legacy Maintenance: Debug, refactor, and update existing C# codebases to add new features or improve system stability.

Department/Project Description

We are seeking a Mobile Developer to design, develop, and maintain our Electronic Flight Bag (EFB) application. You will work on a mission-critical system built in C# specifically for the Windows platform. Your role is essential in transitioning flight crews to paperless cockpits by delivering high-performance, reliable software that handles navigational charts, flight planning, and real-time performance calculations.

What makes you a great fit:

• 5 years of programming experience: Python experience at least 2 years — must
• AWS experience — must
• Experience with high-performance, multi-threaded, multi-processed environments
• Experience developing a high-scale, multi-tenant cloud SaaS mission-critical applications
• Knowledge of different databases — relational, Key-Value, document, Data Lakes
• Knowledge of microservices architecture, design patterns and best practices
• Degree in computer science/software engineering or equivalent

• At least an upper-intermediate level of English

   

Why work with us?

• People-oriented management without bureaucracy
• The friendly climate inside the company is confirmed by the frequent comeback of previous employees
• Flexible working schedule
• 29 paid time off (18 working days per year, plus 11 days — all national holidays)
• 10 sick leave days
• Full financial and legal support for private entrepreneurs
• Free English classes with native speakers or with Ukrainian teachers (for your choice)

• Dedicated HR

   

Your day-to-day in this position:

• Develop production-grade, large-scale cloud-based security products
• Design and develop data-driven applications in an agile development environment
• Collaborate cross-functionally with product managers, QA, automation, data engineers, and other engineers to achieve elegant solutions

• Work alongside other engineers on the team to elevate technology and consistently apply best practices

   

What is your new project?

• Domain: Email Security
• Location: Israel
• Company size: 51-200 employees

• Founded in: 2020

   

Our next steps:

✅ Intro call with a Recruiter — ✅ Test assignment — ✅ Client tech interview — ✅ Managerial interview — ✅ HR client interview — ✅ Reference check — ✅ Offer

We are looking for a Product Manager to join an AI-driven HealthTech product focused on improving clinical decision-making and patient outcomes.

If you have experience launching and scaling product features in HealthTech and enjoy working at the intersection of AI, data, and real clinical impact, this role could be a great fit for you.

We offer:

• Flexible working hours;
• Paid vacation and sick days;
• Health insurance;
• Professional growth;
• Internal English classes and compensation for educational courses;
• Professional accountant and lawyer;
• Friendly atmosphere.
   

Requirements:

• 3-5 years of experience as a Product Manager;
• Experience in HealthTech / MedTech;
• Proven experience in launching or scaling product features;
• Experience with A/B testing, user interviews, and post-release analytics;
• Strong ability to conduct comprehensive research and competitor analysis;
• English: Upper-Intermediate or higher.

We’re seeking an experienced SEO Specialist to join our team!
 

We are a dynamic team driving SEO for a diverse range of businesses on the US market. Our portfolio is versatile: we work with both local small business websites and large enterprise-level e-commerce platforms (valued $10M+ annual turnover with 200,000+ SKUs).
 

Requirements:
 

• 3–5 years of hands-on SEO experience. Ideally, a mix of diverse projects: from local small businesses to large e-commerce/enterprise projects
• Solid understanding of HTML/CSS/JS. You must be able to find a stray tag in the source code, understand DOM rendering, and speak the same language as developers – will be a plus
• Deep understanding of the US search market: Google algorithms, E-E-A-T principles, and local ranking nuances
• Strong skills in site speed optimization, Core Web Vitals, mobile-first indexing, and implementing advanced structured data (Schema.org)
• Proven ability to optimize product listings for Google Shopping (Merchant Center) and manage product feeds
• Solid grasp of AI-powered SEO tools (ChatGPT, Claude, Perplexity). You use them not just for text, but for clustering, regex generation, and workflow automation
• Experience with A/B testing, CTR optimization, and conversion rate improvements
• Successful track record with international projects (handling domain switches, correct hreflang implementation)
• Upper-Intermediate – effective communication in meetings and documentation
   

Responsibilities:
 

• Build and execute holistic SEO strategies for a mix of clients – from local businesses to enterprise e-commerce
• Manage the entire SEO cycle: technical audits, content optimization, link building, local SEO, and site architecture enhancements
• Optimize product feeds and listings to maximize visibility in Google Shopping and AI-driven product surfaces
• Prepare clear, error-free technical specifications (Jira tickets) for developers, content creators, and outreach teams
• Leverage AI tools for content generation, programmatic SEO tasks, and routine automation to work faster and smarter
• Conduct A/B tests to improve CTR and conversion rates, blending SEO goals with business revenue objectives
• Track, report, and analyze results using advanced analytics (GA4, Looker Studio). Provide “So What?” insights, not just raw data

What Makes Us Stand Out:
 

• Impact: Work on enterprise-level projects with major business impact alongside fast-paced small business cases
• Innovation: Professional freedom and experimentation: 10% of time dedicated to R&D and testing new SEO tactics (including AEO/GEO)
• Growth: Clear growth path to SEO Team Lead based on performance.

We offer:
 

• A full-time job
• Flexible working hours
• Paid vacation and sick leave
• Managing your taxes and accounting
• Career and professional growth opportunities
• Optional benefits package that includes Health insurance, Gym membership, English courses, compensation of certification, courses, and training
• Creative and lively team of IT specialists, adequate management, and zero unnecessary bureaucracy

Data Science UA is a service company with strong data science and AI expertise. Our journey began in 2016 with uniting top AI talents and organizing the first Data Science tech conference in Kyiv. Over the past 9 years, we have diligently fostered one of the largest Data Science & AI communities in Europe.

About the role:
We are looking for a Python Software Engineer to join our team and help us build an on-premise software pipeline for real-time computer vision. The system ingests camera streams (primarily RTSP), stores frames in a shared data layer, runs CV/AI engines for preprocessing and inference, applies inference logic to produce decisions, and sends results to Database/Portal/Alerting/Control integrations.

Responsibilities:
- Build and maintain the Camera Module to reliably ingest RTSP streams, decode frames, and handle reconnect/keep-alive/packet loss.
- Implement the Shared Data layer for raw and processed frame exchange across processes with backpressure and safe lifecycle management.
- Integrate and operate CV/AI Engines in Python (preprocess, inference, postprocess) with configurable model loading and runtime selection.
- Develop the Inference Logic layer that orchestrates cropping, batching, filtering, classification, and decision output formatting.
- Implement connectors for Database & Portal (event persistence, evidence references) and for Alerting & Control (events/hooks for downstream automation).
- Ensure production readiness on Linux with observability (logs/metrics), health checks, and robust error handling.

Requirements:
Must-have:
- Strong Python, OOP, clean architecture, typing preferred.
- Solid experience with multiprocessing/concurrency (process lifecycle, IPC patterns, queues/shared memory).
- Comfortable working in Linux (systemd/service mindset, networking basics, profiling/debugging).
- Familiarity with CV/AI tooling, and some related Python libraries such as numpy, opencv (cv2), and torch or tensorflow.
- Ability to work with streaming data and reliability constraints (timeouts, retries, resource cleanup).
Should-have:
- Experience with RTSP/RTP streaming and common issues (UDP vs TCP interleaved, jitter, packet loss, camera timeouts).
- Performance optimization (profiling, memory management, zero-copy patterns).
- Exposure to inference acceleration stacks (TensorRT/OpenVINO) or GPU deployment.
- Experience designing event schemas and integration with DB/message queues.

We offer:
- Free English classes with a native speaker and external courses compensation;
- PE support by professional accountants;
- Medical insurance;
- Team-building events, conferences, meetups, and other activities;
- There are many other benefits you’ll find out at the interview.

Data Science UA is a service company with strong data science and AI expertise. Our journey began in 2016 with uniting top AI talents and organizing the first Data Science tech conference in Kyiv. Over the past 9 years, we have diligently fostered one of the largest Data Science & AI communities in Europe.

About the role:
We are looking for a Python Software Engineer to join our team and help us build an on-premise software pipeline for real-time computer vision. The system ingests camera streams (primarily RTSP), stores frames in a shared data layer, runs CV/AI engines for preprocessing and inference, applies inference logic to produce decisions, and sends results to Database/Portal/Alerting/Control integrations.

Responsibilities:
- Build and maintain the Camera Module to reliably ingest RTSP streams, decode frames, and handle reconnect/keep-alive/packet loss.
- Implement the Shared Data layer for raw and processed frame exchange across processes with backpressure and safe lifecycle management.
- Integrate and operate CV/AI Engines in Python (preprocess, inference, postprocess) with configurable model loading and runtime selection.
- Develop the Inference Logic layer that orchestrates cropping, batching, filtering, classification, and decision output formatting.
- Implement connectors for Database & Portal (event persistence, evidence references) and for Alerting & Control (events/hooks for downstream automation).
- Ensure production readiness on Linux with observability (logs/metrics), health checks, and robust error handling.

Requirements:
Must-have:
- Strong Python, OOP, clean architecture, typing preferred.
- Solid experience with multiprocessing/concurrency (process lifecycle, IPC patterns, queues/shared memory).
- Comfortable working in Linux (systemd/service mindset, networking basics, profiling/debugging).
- Familiarity with CV/AI tooling, and some related Python libraries such as numpy, opencv (cv2), and torch or tensorflow.
- Ability to work with streaming data and reliability constraints (timeouts, retries, resource cleanup).
Should-have:
- Experience with RTSP/RTP streaming and common issues (UDP vs TCP interleaved, jitter, packet loss, camera timeouts).
- Performance optimization (profiling, memory management, zero-copy patterns).
- Exposure to inference acceleration stacks (TensorRT/OpenVINO) or GPU deployment.
- Experience designing event schemas and integration with DB/message queues.

We offer:
- Free English classes with a native speaker and external courses compensation;
- PE support by professional accountants;
- Medical insurance;
- Team-building events, conferences, meetups, and other activities;
- There are many other benefits you’ll find out at the interview.

Data Science UA is a service company with strong data science and AI expertise. Our journey began in 2016 with uniting top AI talents and organizing the first Data Science tech conference in Kyiv. Over the past 9 years, we have diligently fostered one of the largest Data Science & AI communities in Europe.

About the client and role:
We are looking for a Python Engineer to join our client’s team. It is a defense tech company building a real-time battlefield monitoring platform designed to enhance situational awareness and operational decision-making.

Responsibilities:
- Design and develop high-throughput, low-latency Python services for real-time and streaming applications
- ⁠Apply clean architecture and API design principles for maintainable, long-lived systems
- Build and operate event-driven architectures
- ⁠⁠Optimize Python applications for performance and scalability
- ⁠⁠Design robust data ingestion and stream-processing pipelines handling large volumes of events in real time
- Integrate with analytical and time-series data stores (e.g., ClickHouse, Apache Druid)
- ⁠⁠Ensure system reliability and correctness through strong testing practices, monitoring, and alerting
- Collaborate closely with DevOps and platform teams to deploy, scale, and operate services in Kubernetes environments 

Requirements:
- Strong proficiency in Python with a deep understanding of OOP (Object-Oriented Programming) principles.
- Hands-on experience with FastAPI or Flask for building scalable backend services.
- Practical knowledge of threading and asynchronous programming to handle high-performance tasks.
- Commitment to code quality through comprehensive testing using pytest.
- Proficiency in PostgreSQL (query optimization, schema design).
- Experience with Kafka for building event-driven architectures.
- Solid understanding of Linux environments and CI/CD pipelines for automated deployments.

Data Science UA is a service company with strong data science and AI expertise. Our journey began in 2016 with uniting top AI talents and organizing the first Data Science tech conference in Kyiv. Over the past 9 years, we have diligently fostered one of the largest Data Science & AI communities in Europe.

About the role: 
We're seeking a skilled C/C++ Embedded Engineer to take ownership of critical software components in client’s camera-based security devices. This role involves maintaining existing products through comprehensive debugging and bug fixing, as well as developing innovative new features.

Responsibilities:
- Design, develop, and maintain high-quality embedded software in C/C++ for camera-based security devices.
- Debug and resolve complex software, hardware, and network connectivity issues across the entire software stack.
- Develop new features and improve existing codebases for the product line.
- Optimize software performance for resource-constrained embedded environments.
- Conduct code reviews and provide technical mentorship to team members.
- Participate in architecture discussions and technical decision-making processes.
- Collaborate with QA teams to develop comprehensive testing strategies.
- Document software designs, APIs, libraries, and troubleshooting procedures.

Requirements:
- At least 5+ years of commercial experience in embedded development, with expertise in C/C++ (C++17 standard) and deep knowledge of RTOS and microcontroller architectures (ARM, RISC-V).
- Proficiency in the full SDLC, including professional engineering practices like Git, CMake, code reviews, and continuous integration.
- Solid understanding of network programming and experience with multithreading on multicore microcontrollers.
- Expertise in communication interfaces (I2C, SPI, UART, and Wi-Fi) and experience writing device drivers and libraries.
- Ability to work independently and take ownership of complex projects.
- Excellent communication skills for technical discussions and documentation, with a collaborative mindset for cross-functional team environments.
- At least an Intermediate level in both written and spoken English (B1).

Nice to have:
- Understanding of security protocols and encryption methods
- Experience with Python for scripting and automation
- Experience using AI-powered tools to enhance productivity and code quality

The company offers:
- 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
- Gig-contract
- 21 paid vacation days per year, paid public holidays according to 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.

Requirements:

At least 2-3 years experience programming in Ruby on Rails

Modern Ruby (3+), modern rails (7+)

Practical experience with RDBMS (preferably PostgreSQL)

Experience implementing APIs

Loves working in an Agile environment, Jira

Experience with source control tools — Git, Github

Experience with UNIX/Linux command line

Ability to solve problems using best practices and principles

Working closely with front-end developers

Will be a plus:

Third-party APIs integrations

TDD

DDD

Knowledge of server management (deployment, monitoring, optimizing, etc.)

Experience working in micro service architecture projects

Experience with Sidekiq

Experience with Elasticsearch

Knowledge of design patterns, basic algorithms and data structures

We offer:

Interesting project and challenging tasks

Professional & career growth

Vacation and sick leaves

Responsibilities:

Work closely together with business, design and other stakeholders of project

Write robust manageable code

Work in an agile team, participation in planning sprints, daily meetings, retrospectives, code reviews

Write unit and integration tests, bugs fixing and provide continuous integration

Use JIRA bug-tracking system, Time Tracker

Suggest ideas to improve work

Be a self-motivated and result oriented team player

About us:

Health24 is a medical information service for cloud storage, online processing and secure real-time sharing of medical information for healthcare workers and patients.

More details here — health24.ua

We are looking for a skilled IT Recruiter to join our team in our Kyiv office.

Requirements:
— 3+ years experience in IT recruitment
— Excellent communication and negotiation skills
— An expert level of knowledge in all full lifecycle recruiting components including, but not limited to, sourcing, qualifying, networking, assessing , job analysis, and relationship management
— Strong background in active recruitment
— Able to handle multitasking effectively
— Active and goal-oriented
— Self-motivated and flexible
— Team player

 We offer:
— Work on successful commercial game products
— Highly competitive sphere which leads to rapid professional growth
— Lack of bureaucracy, efficient workflow organization and quick decision making.
— Friendly team of professionals
— Participation in thematic seminars and conferences
— Convenient office location in the city center
— Medical insurance and corporate doctor
— An inspiring, comfy, clean and safe office

Responsibilities:
— Collaborate and consult with the businesses to identify job requirements and develop effective the position profiles and candidate specs that most effectively market the opportunity
— Develop dynamic relationships with business leaders, hiring managers and candidates in order to find the best talent
— Headhunt and close senior and/or executive level candidates
 

Please note that we expect our future colleague to work from the Kyiv office together with the team.
 

We’re looking for a Chief Executive Officer (CEO) to take full ownership of one of AIBY’s core product groups — a 20M-install, $10M ARR consumer subscription business — and scale it into its next phase of profitable growth.

Your mission – maximize the Net Profit and Long-Term Value (LTV) of your multi-platform portfolio of apps across iOS, Android, and web by aligning product innovation with data-driven performance marketing.

Unlike a solo founder, you aren’t starting from zero. As a Business Unit CEO, you have:

• immediate access to AIBY’s historical data from 70+ apps to see what works
• centralized Legal, Finance, and HR so you can focus 100% on the product and the users
• significant UA budgets and infrastructure already in place

What you will do:

• P&L Ownership: you’re 100% accountable for the revenue, marketing spend, and operational costs of your unit
• Strategic Roadmap: define the “Why” and the “When”. You decide which features to build based on their projected impact on retention and monetization
• Growth & Monetization: work hand-in-hand with your UA Lead to optimize ROAS (Return on Ad Spend) and Payback Periods. You’ll oversee the subscription funnel, A/B testing, and paywall optimizations
• Cross-Functional Leadership: build, structure, and scale a high-performing team across Product, Growth, Marketing, Engineering, and Design
• Resource/ Capital Allocation Strategy: you have the autonomy to decide where to “bet” your resources. If a specific app in your unit is scaling, you pivot the team’s focus there immediately
• Partnership with the Board and Founders: you’re involved in strategic decision-making at the C-level, with direct impact on business metrics, financial results, and the product ecosystem

What you should have:

• 7+ years of experience in product-based B2C businesses (subscription, mobile/web)
• 3+ years in leadership roles with direct P&L ownership (CPO, CMO, GM, CEO, Product Director, Head of Product, Head of Marketing, etc.)
• Product-Marketing Hybrid expertise: you can speak “Engineering” to the devs and “ROAS” to the marketers. You understand how a product change affects ad performance and vice versa
• Proven 0→1 and scale-stage experience: launching new units, restructuring businesses, scaling early-stage products to meaningful revenue, or founding a startup
• Strong financial acumen: you live in the dashboards. You understand the nuances of cohorts, LTV/CAC ratios, and churn rates in a subscription-based model
• Mentality: ownership, clarity, decisiveness, speed, and persistence
• Entrepreneurial mindset

What we offer:

• Full strategic and operational ownership of a multi-million ARR business unit
• Competitive fixed compensation + performance-based bonus + long-term incentive structure
• The opportunity to scale a category-leading product portfolio into a global market-defining player
• Results-oriented colleagues committed to scaling impactful products. Your team will help you achieve the most ambitious goals
• Remote-friendly work environment with high autonomy and minimal bureaucracy

Location

AIBY is a team of strong international top talents. This role allows for either hybrid (combining in-office and remote work), fully remote or in-office work.