Jobs at Djinni

Job description

Infineon’s Power System IC (PSI) Software Development team is seeking a Principal Firmware Engineer to contribute to the design and development of embedded firmware for our advanced DC/DC power conversion ICs. If you have a strong foundation in embedded systems programming and are eager to learn and grow your skills, we’d love to hear from you. Apply now and join us in Lviv!

In this role, you will create control firmware for a family of MCU-based digital power controllers for various DC/DC power supply topologies. This will enable real-time control, configuration, and communication with external systems through serial protocols such as I2C, PMBus and UART.

In your new role, you will:
 

• Write and test embedded firmware for power IC applications using C
• Implement real-time control and configuration firmware for embedded systems
• Interface with serial communication protocols such as I2C, PMBus, and UART
• Conduct firmware development for peripherals such as ADC, DAC and communication interfaces
• Assist in debugging and validating embedded firmware with mixed-signal hardware in a lab environment
• Collaborate with hardware and software engineers to ensure seamless functionality
• Create and maintain documentation, including feature descriptions, user guides, and firmware design specifications
• Contribute to new ideas for firmware improvements and participate in code reviews to maintain quality standards

Your profile
You are a hands-on engineer with a strong interest in embedded firmware development. You coordinate effectively with colleagues, share insights proactively, and take initiative to overcome technical challenges. You have high standards and a commitment to continuous improvement.

You are best equipped for this task if you have:
 

• A bachelor’s or master’s degree in electrical engineering, Computer Science or similar
• At least 3 years of experience in embedded firmware development
• Experience in DC-DC power conversion systems, with basic understanding of mixed-signal systems (good to have)
• Proficiency in C programming for embedded systems, and familiarity with Python is a plus
• Familiarity with serial communication protocols such as I2C, UART, or PMBus and experience debugging firmware with hardware circuits
• Familiarity with version control systems (e.g., GIT) and debugging tools (e.g., JTAG) and bug tracking systems like JIRA is a plus
• Knowledge of bare-metal, RTOS environments, and device drivers is a plus
• Strong problem-solving and collaboration skills, as well as good communication skills in English

Please send us your CV in English

We invite a motivated Junior/Strong Junior Blockchain Developer to join our team!💡
If you have hands-on experience with Solidity, a solid understanding of the Ethereum ecosystem, and at least 6 months of practical development, we’d be happy to see you grow with us. For this role, genuine curiosity and enthusiasm for Web3 are just as important as your technical background.

Responsibilities:

• Develop and maintain smart contracts on Ethereum (Solidity)
• Work with standards like ERC-20, ERC-721, ERC-1155
• Collaborate with front-end developers on dApp integration
• Write unit tests and assist with deployment (Hardhat/Truffle)

Requirements:

• 6+ months of experience with Solidity (commercial or pet projects)
• Good understanding of Ethereum (EVM)
• Solid knowledge of JavaScript/TypeScript
• Basic experience with React and Node.js
• English level from Intermediate (B1)

Nice to have:

• Experience with Web3.js or ethers.js
• Familiarity with Layer 2 solutions (Polygon, Arbitrum)
• Participation in hackathons, GitHub portfolio

Why Join Us:

Flexible Work Environment: Benefit from remote work options and a work-life balance that suits your lifestyle.

Competitive Compensation: We offer a salary package that reflects your skills and experience, ensuring you’re rewarded for your contributions.

Collaborative Culture: Join a team that values open communication, teamwork, and continuous learning.

Professional Growth: Accelerate your personal and professional development with opportunities for continuous learning and career advancement.

Technological Expertise: Our technical team is always keeping up with new technologies, so we are open to experiments and new approaches.

Generous Benefits: Take advantage of paid vacation, sick leaves, and holidays to recharge and maintain your well-being.

Global Exposure: Work on exciting projects with an international focus, primarily serving the Western European and USA markets.

We invite a motivated Blockchain Rust Developer to join our team! 🚀
If you have knowledge of Rust and Solana, passion for blockchain technologies, at least 1 year of hands-on experience, and English from Upper-Intermediate (B2) — we'd be happy to see you grow with us. For this role, genuine curiosity and enthusiasm for Web3 are just as important as your technical background.

Responsibilities:

• Develop and maintain smart contracts on Solana using Rust
• Collaborate with front-end developers to integrate smart contracts into dApps
• Write clean, efficient, and secure code
• Participate in code reviews and knowledge-sharing sessions

Requirements:

• 1+ year of experience with Rust (commercial or strong pet projects)
• Experience with Solana smart contracts
• Solid knowledge of JavaScript/TypeScript
• Basic experience with React and Node.js
• English level from Upper-Intermediate (B2)

Nice to have:

• Participation in hackathons or open-source projects
• Knowledge of Web3.js or ethers.js
• Familiarity with blockchain security best practices

Why Join Us:

Flexible Work Environment: Benefit from remote work options and a work-life balance that suits your lifestyle.

Competitive Compensation: We offer a salary package that reflects your skills and experience, ensuring you’re rewarded for your contributions.

Collaborative Culture: Join a team that values open communication, teamwork, and continuous learning.

Professional Growth: Accelerate your personal and professional development with opportunities for continuous learning and career advancement.

Technological Expertise: Our technical team is always keeping up with new technologies, so we are open to experiments and new approaches.

Generous Benefits: Take advantage of paid vacation, sick leaves, and holidays to recharge and maintain your well-being.

Global Exposure: Work on exciting projects with an international focus, primarily serving the Western European and USA markets.

About us:

ARRISE sets the benchmark for service delivery and excellence in the iGaming industry. Playing a key role in the success of its clients, which include Pragmatic Play, a brand relied upon by the world’s biggest online casinos for its cutting-edge products, ARRISE helps to deliver exceptional gaming experiences to millions of players worldwide.

Our global team of talented and driven professionals are shaping the future of iGaming. Headquartered in Gibraltar, we have offices spanning Canada, India, the Isle of Man, Latvia, Malta, Romania, Serbia, Bulgaria, and the UAE, and more exciting destinations on the horizon.

At ARRISE, we take pride in creating growth opportunities at all levels, constantly investing in our people while welcoming new colleagues and forging strategic partnerships that open new opportunities for success. 

To achieve this, we bet on ourselves. We know that success is a collective effort, and our team is driven by ambition, collaboration, and a shared commitment to grow and succeed—while embracing every step of the journey.

Be part of the future of iGaming with ARRISERS! See a job that excites you? Apply now, and our friendly recruitment team will connect with you soon. Your journey starts here!

Required Skills: 

• 5+ years of hands-on experience in commercial software development using Java.  
• Solid understanding of Object-Oriented Programming (OOP) concepts and proficient in applying design patterns. 
• Extensive expertise in Java Core and the Spring framework (including Spring Boot, Spring Web, Spring Data, Spring Cloud). 
• Proficiency in vanilla JDBC for database interactions. 
• Strong understanding of RDBMS concepts and SQL, with experience working with databases such as Oracle, PostgreSQL. 
• Experience with Redis. 
• Experience with distributed messaging systems, particularly RabbitMQ. 
• Proven track record in the development of microservices and distributed transactional systems. 
• Knowledge of fundamental design principles for building scalable and highly available applications. 
• Good foundation in algorithms, design patterns, and data structures. 
• Proficiency in unit/functional testing frameworks such as JUnit 4/5, Spock, and Testcontainers.  

Preferred Skills:  

• Experience in application and infrastructure monitoring. 
• Proven ability to troubleshoot production problems related to software applications. 
• Exposure to high-load systems. 
• Good spoken and written English skills. 
• Experience with JSP, Thymeleaf, JavaScript, TypeScript, React would be a big plus. 
• Experience with MongoDB would be a big plus. 

Responsibilities:  

As a Java Software Engineer, you will play a pivotal role in engineering and implementing a high-loaded enterprise system that serves tens of thousands of users logging into our product every day. Your responsibilities will include: 

• Collaborating with cross-functional teams to design, develop, and maintain robust software solutions that meet the needs of our enterprise-level system. 
• Architecting scalable and efficient Java-based components to ensure optimal performance under high load. 
• Implementing best practices in software engineering, including code reviews, testing methodologies, and documentation standards. 
• Optimizing system performance and reliability through continuous monitoring, troubleshooting, and performance tuning. 
• Participating in the entire software development lifecycle, from requirements gathering and design to deployment and support. 
• Staying up-to-date with the latest technologies and industry trends to continuously improve our system architecture and development processes. 

Company offers: 

• Long-term employment. 
• Flexible timetable. 
• Comfortable working conditions. 
• Paid vacation and sick leaves. 
• English lessons, gym. 
• Competitive salary level. 

Netflix boosted its views by 30% just by changing movie thumbnails.
Romance fans saw a couple in love, action fans saw an explosion and a superhero.
One movie, different covers = 30% more clicks.

We apply the same principles to our gambling platform and are looking for a  CRO Manager to scale these results.

Why this role is exciting for an experienced PM:

• Mentorship from a Senior PM with proven results: registration conversion 12% → 24%, clicks 58% → 61%, 15+ projects delivered in a year
• Gambling CRO expertise – the most challenging niche with premium market compensation
• Proprietary analytics tools for fast A/B testing and conversion tracking
• Full project ownership with no micromanagement
• Scale: 230k+ MAU, 150+ countries, dozens of parallel experiments

Your responsibilities:

• CRO strategy planning – user funnel analysis, identifying bottlenecks, building an optimization roadmap
• Independent project ownership – landing page redesign, registration form optimization, testing user mechanics
• Deep behavioral analytics – heatmaps, cohort analysis, segmentation
• A/B testing – experiment design, sample size calculation, statistical analysis, decision implementation
• Cross-functional collaboration – briefing designers on creatives, tasking developers with technical implementation

Projects you’ll work on:

• Optimizing personalized bonus campaigns (similar to Netflix thumbnails)
• Redesigning the homepage for different geo-regions
• A/B testing of registration funnels and onboarding flows
• Thematic campaigns (seasonal, holiday) with measurable ROI
• Contributing to the development of recommendation systems
   

Growth path: 

• 0–3 months: Adaptation to platform specifics and company processes
• 3–12 months: Independent ownership of key CRO initiatives
• 12+ months: Opportunity to grow into Senior PM or Lead roles
   

Ideal candidate: 

• 2+ years of CRO/Product Manager experience with proven results
• Strong expertise in A/B testing, statistics, analytics tools, CSS/HTML/JS
• Experience with high-load products (230k+ MAU)
• Independence in decision-making and project management
• Motivation to grow expertise in the gambling industry

What success looks like after 1 year:

• Consistent growth of key conversion metrics
• Established expertise in gambling CRO – one of the highest-paying niches
• Career growth opportunities to Senior/Lead positions
• Fully remote + medical insurance + education reimbursement + English tutoring.

What stages do we have:
• 1st stage: pre-screen with recruiter.
• 2nd stage: interview with hiring manager.
• 3rd stage: test task (optional).
• 4th stage: final interview.
• 5th stage: referrals and offer.

💡 Ready to join the team? Send us your CV.

Hey! Cryptorsy Ventures is looking for a proactive and talented Community Manager to help us attract, engage, and grow our crypto community! 🚀

What you’ll do:

• Manage and moderate communities on Telegram and Discord, keeping the community active and engaged.
• Create creative and catchy content (posts, memes, GIFs, infographics) that attracts and retains community members.
• Build trusting relationships with the community and influencers, organize interactive activities, and boost participation.
• Analyze and improve communication strategies, staying on top of Web3 trends.
• Drive user acquisition through interactive campaigns, events, and contests.
• Educate the community by explaining Web3 concepts and fostering a trusting and welcoming atmosphere.

What we expect from you:

• At least 2 years of experience as a Community Manager.
• Solid understanding of Web3, cryptocurrencies, and blockchain ecosystems.
• Ability to craft catchy content — no boring noise here.
• English proficiency at B2+ level for effective communication.
• Excellent communication skills and a great sense of humor.
• Basic graphic design skills to create engaging content.
• Experience in digital marketing is a plus.

What we offer:

• Fixed salary + performance bonuses.
• Fully remote work and a young, energetic team.
• Access to a unique knowledge base.
• Additional bonuses for outstanding project achievements.
   

It takes approximately 7 business days to review your resume. If you do not receive a response from the recruiter within this time, it means that we have reviewed your resume, but there are currently no open positions in the company that match your experience and wishes.

Meet the YozmaTech

YozmaTech isn’t just another tech company - we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster. We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact. Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family - you’ll feel right at home with us.

Our client's product enables users to build financial solutions designed for SMBs that turn manual monthly and quarterly reporting processes into automated ones.

We are looking for a highly skilled and passionate Lead Python Engineer with strong Django expertise and a passion for startups to join our team!

Key Requirements:

🔹 Bachelors degree in Computer Science or related field;
🔹 5+ years of experience in software development in a SaaS company;
🔹 Fluent in Python (Django);
🔹 Excellent knowledge and experience with building, optimizing, and maintaining large-scale production systems;
🔹 Experience with writing unit tests and integration tests;
🔹 Experience with Relational DBs (Postgres, MSSQL);
🔹 Experience and familiarity with Cloud Architecture and services;
🔹 Knowledge of REST and experience working with REST APIs;
🔹 Familiar with KISS, DRY, SOLID, OOP;
🔹 Knowledge of Celery;
🔹 English - Upper-Intermediate or higher.

Will be plus:

🔹 Familiarity with Azure;
🔹 Knowledge of RabbitMQ;
🔹 Knowledge of Redis;
🔹 Knowledge of Excel Add-Ins.

What you will do:

🔹 Take part in developing the backend of the SAAS application;
🔹 Develop and lead end-to-end development of new features and services in a multi-service environment while maintaining high quality and standards;
🔹 Develop scalable web APIs, implement sophisticated business logic, and develop asynchronous services in a data-oriented, scalable application;
🔹 Take part in a multidisciplinary team involving algorithms/frontend/UI/DevOps;
🔹 Play a significant role in the entire development life-cycle, from design to production.

Interview stages:

🔹 HR Interview;
🔹 Tech interview with Team Lead;
🔹 Interview with PM;
🔹 Interview with VP R&D (optional);
🔹 Reference check;
🔹 Offer.

Why Join Us?

At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products - and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.

From day one, you’ll get:

🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

We’ll keep it respectful, clear, and personal from start to offer. You’ll always know what project you’re joining - and how you can grow with us.

Everyone’s welcome

Diversity makes us better. We create a space where you can thrive as you are.

Ready to build something meaningful?

Let’s talk. Your next big adventure might just start here.

About Us:
Ovogene is a first AI egg bank in the world. We work with clinics and partners worldwide, ensuring the highest standards of quality and compliance. We are looking for a strategic and analytical Senior quality officer with fluent English to develop, improve, and monitor company processes in line with international standards and partner requirements.
 

Key Responsibilities:
Strategy & Processes
● Develop and document algorithms, SOPs, and business processes for company departments.
● Monitor the implementation and effectiveness of process improvements.
● Participate in creating operational algorithms for new partners (SOPs, licenses) and enhancing existing procedures.

Audit & Control
● Conduct internal quality audits across all locations, including business trips.
● Analyze process performance indicators and provide improvement recommendations.
● Identify and manage non-conformities: record, analyze, communicate to managers, and follow through with corrective actions.
● Ensure the use of up-to-date donor documentation templates.
● Oversee documentation compliance with the legislation of countries where clinical locations operate.

Legislation & Partner Requirements
● Analyze current legislation of partner and potential partner countries and integrate relevant requirements into workflows (in collaboration with the legal department).
● Maintain the database of ISO certifications for contractors and clinical locations.
● Maintain the database of requirements for current and new partners.

Partner Communication
● Maintain regular communication with partners via online meetings and formal correspondence.
● Handle partner requests: prepare responses, compile document packages (together with responsible managers).
● Participate in negotiations, presentations, and discussions related to standards, requirements, and processes.

● Build and maintain long-term relationships with partners, ensuring transparent and efficient communication.

Training & Awareness
● Inform staff and conduct training sessions on changes in compliance-related policies and procedures.
Reporting
● Prepare additional reports for management and partners.
 

Candidate Requirements:
● Proven experience in compliance, quality management, or audit (preferably in international projects).
● Fluent English (spoken and written).
● Understanding of international quality standards and regulatory requirements (ISO 9001).
● Strong analytical skills, attention to detail, and ability to structure information effectively.
● Experience in conducting audits and developing processes.
● Excellent communication skills and experience collaborating with partners at various levels.
 

We offer:
● A role in an international company that is a leader in its field.
● The opportunity to shape key company processes and standards.
● Competitive compensation and professional growth opportunities.
● Flexible work format and a multicultural working environment.
 

If you are a strategic thinker who can combine high-quality standards with operational efficiency — we would be happy to meet you!

DataRoot Labs is a full-cycle AI R&D center—and Ukraine’s largest hub of AI talent and compute. Over the past 10+ years, we’ve shipped 45+ AI-powered products for leaders and startups across Automotive, Energy, Navigation, Gaming, Education, and more
 

Our client builds autonomous yard trucks that replace human drivers to make logistics yards safer, faster, and more efficient
 

Your mission: make the AI stack see in 3D and drive correctly—every time

Responsibilities:

• Research and develop advanced reinforcement learning (RL) algorithms and their applications
• Build, simulate, and test RL environments for real-world deployment scenarios
• Apply modern deep learning techniques, including transformers and computer vision, to RL problems
• Optimize inference performance for large-scale RL solutions

Requirements:

• Have a strong background in Reinforcement Learning and Deep Learning
• Hands-on experience with simulation and environments for RL
• Proven production experience in RL, including deployment cases
• Deep understanding of RL techniques (e.g., policy gradients, actor-critic, Q-learning)
• Experience with transformers and computer vision
• Upper-Intermediate English (written & spoken) for documentation and collaboration
• Strong knowledge of Python
• Experience with inference optimization

Would be a plus:

• Experience with Vision-Language Architectures (VLAs)
• Work with edge devices and sensors (e.g., camera, lidar, radar, etc.)
• Experience in automotive or robotics
• Knowledge of C++/CUDA

What We Offer:

• Real autonomy impact. Work on vehicles that use RL, Vision-Language-Action (VLA) and many other latest architectures
• Access to DGX H200 systems and large-scale GPU clusters
• Startup pace, research mindset, and a goal-oriented team
• Newest technical equipment and modern MLOps
• 20 working days of paid vacation, English courses, educational events & conferences, and medical insurance
• Your engineering will directly influence how autonomous vehicles perceive and act

We are the creators of a new fintech era!
Our mission is to revolutionize the world by making blockchain technology accessible to everyone in everyday life. WhiteBIT is a global team of more than 1,200 professionals united by a shared vision of shaping the Web3 future.
We are building our own blockchain ecosystem, ensuring maximum transparency and security for over 8 million users worldwide. Our cutting-edge solutions, rapid adaptation to market challenges, and technological excellence set us apart from traditional companies.
Our official partners include the National Football Team of Ukraine, FC Barcelona, Lifecell, FACEIT, and VISA.

The future of Web3 starts with you — join us as a SOC Analyst L1!

 

Requirements:

— Basic understanding of cybersecurity principles, common attack vectors, and threat detection methods.
— Familiarity with key cybersecurity frameworks (MITRE ATT&CK, NIST, CIS etc.)
— Familiarity with EDR/XDR and SIEM platforms (e.g., CrowdStrike, SentinelOne, Splunk, QRadar, etc.).
— Strong analytical and problem-solving skills.
— Ability to work in a fast-paced, team-oriented environment.
— Good written and verbal communication skills in English (B1+).
— Willingness to work in a shift-based schedule, including nights and weekends. Shifts are distributed evenly across the department.

Responsibilities:

— Monitor and analyze alerts from EDR, SIEM platforms and other corporate tools.
— Perform initial triage to determine the severity, credibility, and urgency of security events, sorting out False Positives.
— Escalate incidents to Level 2 analysts or incident response teams when necessary.
— Document findings, actions taken, and outcomes in a ticketing system.
— Follow standard operating procedures (SOPs) and playbooks for alert handling.
— Assist in the continuous tuning of EDR/SIEM rules to reduce False Positives.
— Stay current with emerging threats and industry best practices.
— Participate in active learning and Purple Teaming of the SOC team.

Work conditions:

Immerse yourself in Crypto & Web3:
— Master cutting-edge technologies and become an expert in the most innovative industry.
Work with the Fintech of the Future:
— Develop your skills in digital finance and shape the global market.

Take Your Professionalism to the Next Level:
— Gain unique experience and be part of global transformations.
Drive Innovations:
— Influence the industry and contribute to groundbreaking solutions.

Join a Strong Team:
— Collaborate with top experts worldwide and grow alongside the best.
Work-Life Balance & Well-being:
— Modern equipment.
— Comfortable working conditions, and an inspiring environment to help you thrive.
— 24 calendar days of paid leave.
— 5 calendar days of sick leave.
— Additional days off for national holidays.

SKELAR is a venture builder that creates international IT companies according to venture capital investment guidelines. Together with our co-founders, we assemble solid and efficient teams to launch tech businesses that will succeed globally.

We’re looking for a strategic, creative, and performance-driven Head of Creative Marketing who can build and lead a world-class creative engine for user acquisition and brand growth.
 

As our Head of Creative Marketing, you will:
— See the direct impact of your work in near real-time;
— Accelerate your expertise in performance marketing and lifecycle communication;
— Contribute to building the #1 business in our niche;
— Learn the fundamentals and internal mechanics of a tech business first-hand;
— Work alongside sharp, results-oriented teammates.
 

Responsibilities:
— Own and drive creative marketing strategy with a focus on performance and scalability;
— Build, lead, and mentor a team of creative marketers, video editors, and designers;
— Systemize the creative production pipeline from idea to launch, ensuring speed, quality, and efficiency;
— Lead AI and automation initiatives with high budget support and drive MarTech development to improve creative workflows;
— Lead cross-functional collaboration with User Acquisition, Product Marketing, and Product teams;
—Stay on top of market trends, competitors, and platforms to ensure our creative strategy remains innovative and differentiated.
 

Requirements:
— 3+ years of experience in creative marketing within mobile apps, tech products, or DTC consumer businesses;
— Proven track record of delivering high-performing ad creatives in paid social or performance marketing channels;
— Strong leadership skills and experience managing creative teams;
— Strong understanding of ad platforms (Meta, Google, TikTok) and their creative requirements;
— Deep knowledge of creative testing methodologies and how to scale winning assets;
— Self-starter mentality with experience in fast-paced, high-growth environments;
— Fluent in English (B2+).
 

In addition to our businesses, we have the SKELAR Foundation — a charitable foundation created by company employees. As part of the initiative, we create and finance projects that contribute to overcoming the consequences of the war and the reconstruction of Ukraine.

SKELAR is a place for self-realization of talents who are able to create successful companies. We call such companies the next big everything. We believe in their power and scale.

We will keep developing tech businesses, conquer global markets, and work for the victory of Ukraine 🇺🇦
 

For this purpose, we have provided the following opportunities:
— 8 infrastructure teams that help startups deal with any issue, from recruiting to finance and legal;
— A community of founders who have already launched more than one business and can share practical experience;
— Internal clubs within the professional areas: marketing, engineering, payments, hiring;
— Trainings, courses, conferences;
— Medical insurance and corporate doctor.
 

Let’s build the next big everything together!

About the Role

We’re Umbrelly.Cloud - an AI-powered platform helping companies cut up to 25% of their AWS, Google Cloud, and Azure bills. 🚀

We’re looking for a B2B Sales Manager who knows how to take warm leads (people already interested in our product) and confidently close them into long-term clients. If you’re ambitious, proactive, and love winning deals - you’ll feel at home here.

What You’ll Do

• Work with warm inbound leads: guide them from “interested” to “signed deal.”
• Build strong relationships with founders and C-level executives.
• Negotiate terms and close deals with a clear, results-first approach.

• Collaborate with our tight-knit team to improve processes and grow faster.

   

Requirements

• English C1+ (fluent, professional level).
• Proven success in B2B SaaS sales.
• Strong networking and deal-closing mindset.
• Solid negotiation experience at founder/C-level.
• Tech/product background is a big plus (bonus if you’ve been a developer or worked in tech-driven teams).

• Other languages = nice advantage.

   

What We Offer

• Base salary: from $1500 + performance bonuses.
  (Choose: 10% of profit across client LTV or 60% of first month’s profit as a one-time bonus).
• Full focus, full-time role.
• Flexible hours, fully remote.
• Fast career growth - both in salary and into team lead / head of sales roles.
• Minimum bureaucracy, maximum support.

• Small, dynamic team where your impact is visible.

   

About Umbrelly.Cloud

• $500k raised, 100+ B2B clients, and MRR growth of 400% in just 2 years.
• A global, 5-person team working closely together across Europe and beyond.
• Regular team bootcamps and meetups (Warsaw, Lisbon, Silicon Valley).
• A culture that values results, collaboration, and enjoying the journey. 🌍✨

 If you’re a confident closer who wants to join a fast-scaling SaaS startup, let’s talk.

We’re looking for a talented person to join our Development team. Your role will encompass a React Native mobile app.

You will work closely with developers, designers, QA, and PM.

Read before applying:

• We are looking for an entry-level specialist.
• The first step will be a test task. After that, an interview.
• After hiring, we will assign a mentor, who will review every PR.

• We have a process (expertise) in how to grow you from junior to a strong middle-level.

   

About you

At least 1 year of professional experience with React Native

Experience in teams of 2-10 persons.

Understanding of the project development life-cycle.

Understanding of Agile / Scrum.

Hard Skills 

- TypeScript
- React Native
- Tailwind CSS
- Integration with REST APIs
- Sentry
- Firebase
 

Responsibilities

Develop and maintain mobile applications using React Native.
Ensure the performance, quality, and responsiveness of applications.
Write clean, maintainable, and well-documented code.
Troubleshoot and debug applications using tools like Flipper.
Integrate with RESTful APIs to connect applications to back-end services.
Implement responsive layouts and styling using Tailwind CSS.
Monitor and maintain app performance using Sentry.
Utilize Firebase for various app functionalities like analytics, authentication, and more.

What we offer 

1. 22 days off and 12 sick days paid by the company annually.
2. Paid national holidays.
3. Health insurance.
4. English classes.
5. GYM.
6. Team building twice per year.
7. Welcome box.
8. Paid overtime.

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CEO Anatolii

About us:
Data Science UA is a service company with strong data science and AI expertise. Our journey began in 2016 with the organization of the first Data Science UA conference, setting the foundation for our growth. Over the past 8 years, we have diligently fostered the largest Data Science Community in Eastern Europe, boasting a network of over 30,000 AI top engineers

About the client and the role:
Our client is a software company that develops and distributes software for macOS and iOS. We are seeking an AI Datasets Lead (data generation & annotation) to join the AI team, overseeing the entire data annotation process and supporting AI and machine learning initiatives. This role requires strong leadership skills combined with a good understanding of data collection and annotation for machine learning models.

Requirements:

• Proven experience leading a data annotation team
• Basic understanding of AI/ML concepts (data annotation needs, task types, neural network training)
• Good knowledge of data labeling processes and familiarity with relevant tools, platforms, and best practices in the data annotation field
• Basic understanding of data collection processes (web scraping, dataset management)
• Strong leadership, communication, and organizational skills with the ability to convey technical aspects to both technical and non-technical stakeholders
• Strong ability to manage uncertainty and bring clarity to unstructured situations — handle incoming requests without predefined processes, structure the chaos, and progressively build clear, actionable workflows for the team
• Experience with quality assurance processes for large datasets
• Keen attention to detail and the ability to balance multiple projects and priorities simultaneously
• Openness to frequent feedback from multiple stakeholders and readiness to quickly adapt processes in real time based on that input
• Experience with data privacy regulations and ethical considerations in data annotation
• Strong analytical skills to monitor processes and implement improvements based on data-driven insights
• Ability to develop and implement data quality metrics and KPIs to measure the effectiveness of annotation processes
• Experience managing budgets & external partnerships
• Upper-intermediate level of English.

Responsibilities:

• Organize and supervise the data annotation process, ensuring its accuracy and quality
• Build and lead the data annotation team, coordinate team tasks and workflows, and foster the team development
• Implement quality control processes, analyze errors, and improve standards
• Develop and maintain annotation guidelines and documentation to ensure consistency and accuracy across the team
• Optimize annotation processes and explore automation opportunities
• Closely collaborate with data engineers to develop efficient data processing solutions and tools, and implement automated data processing workflows to streamline annotation processes
• Collaborate closely with ML Engineers to align data annotation efforts with machine learning model requirements and understand the neural network training process
• Take part in cross-functional coordination and cooperation with other colleagues
• Manage costs related to data sourcing and annotation
• Explore outsourcing & alternative data solutions, manage cooperation with external freelancers and partners, including searching, selecting, and organizing cooperation with them to meet the organizational needs
• Ensure compliance with data privacy and security regulations throughout the data annotation process

The company offers:

• Hybrid work model
• Health and mental programs
• Flexible working hours
• Time-off policy
• Team and growth
• Different social initiatives.

NICE systems, our long-term partner with over 6,000 employees, presence in 150+ countries and more than 25,000 customers including more than 85 of Fortune 100.

It’s a global provider of Insight from Interactions solutions and value-added services, powered by the convergence of advanced analytics of unstructured multimedia content and transactional data from telephony, web, email, video, and other data sources.

If you are looking for technology challenges and ready to explore new professional horizons, this is your opportunity to join our Work Force Management development international team.

RESPONSIBILITIES

• Design and develop quality, proficient and well documented technical solutions that satisfy business requirements and meets corporate architectural standards
• Develop solid unit, integration, and automation tests according to organizational standards
• Assist in troubleshooting and maintenance of existing software applications; identify and implement additional improvements when warranted; work with external stakeholders as needed
• Develop technical models / design for assigned components
• Contribute to and drive technological and architectural decisions
• Participate in reviewing design and code for other team members

SKILLS

• 6+ years of experience in developing on Java 8+ web application development
• Experience in server-side development using Hibernate, Spring (MVC, Core, AOP),
• Experience with REST Web Services API
• Experience with JavaScript
• Experience with multi-tier web application development
• Experience with Tomcat
• Experience with server-side testing using JUnit, Mockito / Easymock
• BSc in Computer Science / Software Engineering or equivalent
• Nice to have:
  • Experience with Angular, Swing , Monolith architecture, Jasper etc.
  • Experience with MAVEN and Jenkins
  • Experience working in Agile environment
  • Еxperience in improving performance, scalability, stability and resiliency of the product
• Upper-Intermediate level of English.

WE OFFER

• Work in a creative friendly environment using cutting-edge technologies
• Work-life balance and flexible schedule
• Competitive compensation with focus on your expectations; annual salary review
• 24-day paid vacation and 100% paid sick leave
• Financial support and legal support for individual entrepreneurs from our side
• Professional, language and soft skills trainings
• Health insurance coverage: individual and family, Fitness plan