Jobs at Djinni

Bitmedia Labs is an international product IT company that has been building ambitious innovative products for millions of users worldwide since 2014 - combining deep tech expertise with a creative mindset. 

Our ecosystem spans:

• Game Development — building the next generation of Web3 gaming, where gameplay comes first, players own their assets, and developers thrive within massive, engaged communities.
• Digital Marketing Ecosystem — building a unified ecosystem that combines a leading high-performance advertising platform with emerging media and affiliate solutions.

We are looking for a Manual QA Engineer to join our game development direction. This role is focused on testing a live gaming product, so hands-on experience in game testing is essential. You will work with complex gameplay mechanics, in-game economy, and cross-platform environments (web and mobile), ensuring a stable, fair, and engaging experience for players.

Requirements

• 2+ years of experience in Manual QA.
• Experience in web and mobile (iOS/Android) application testing.
• Experience working with web debugging proxy applications (Charles).
• Extensive API testing experience (e.g., using tools like Postman, Swagger and understanding API documentation).
• Strong knowledge of stack of web technologies like HTTP, JSON, REST.
• Solid understanding of QA methodologies, tools, and processes.
• Experience in creating and executing test documentation, including test cases, check-lists, and writing clear bug reports (using tools like Jira, Mantis, Redmine).
• Knowledge of SQL and NoSQL databases.
• Experience in game testing.
• Strong analytical and problem-solving skills.

Responsibilities

• Perform functional and non-functional testing of web and mobile applications;
• Submit bug reports and define bugs’ importance;
• Analyze project requirements;
• Create and maintain test documentation;
• Manage incoming bugs from clients and other team members before sending to developers.

Nice to have

• Experience with MongoDB.
• Familiarity with test automation tools.
• Experience with Blockchain.

Hiring process:

• Intro call with a Recruiter - Technical Interview - Test task - Interview with the Hiring team - Сollection of recommendations - Offer.
   

Join Bitmedia Labs to evolve, explore, and make a real difference - together.

Our culture is built on openness, trust, and support. We value initiative, ownership, and results. We work as one team - helping each other, celebrating wins, and learning from challenges together. 
 We offer the freedom and space to grow:

• Professional growth and self-realization through ambitious products;
• The opportunity to bring your ideas to life, experiment, and directly influence the product’s development; 
• Collaboration with talented teammates united by a shared goal.

We also care about well-being and balance:

• Flexible schedule and the option to work remotely or from our hubs in Kyiv, Warsaw, and Berlin;
• Competitive compensation, regular performance reviews, paid vacation, sick leave, and public holidays;
• Modern Apple equipment and thoughtful corporate gifts for holidays and personal milestones.
• Support for your growth: courses, workshops, and conferences.

Through our charity foundation Bit Spilka, run by volunteers from our team, we support the military, medics, and civilians across Ukraine — already delivering over $500,000 in aid. Here your work also drives social impact, and you can also join our volunteer initiatives.

If this resonates with you - send your CV and join us.

Let’s foster the world together!

Project Description

Our Client is the Enterprise Worldwide Company. The product you will be working with, provides management and data processing/handling capabilities for networks of the clients scientific lab equipment such as microscopes, etc.

Job Description

Practical experience with testing artifacts: test plan, test case, test script, test report

Ready to learn

Familiarity with Agile frameworks

Excellent communication skills

Attention to details

Analytical mind and problem-solving aptitude

Verbal and written English - is a must

Job Responsibilities

Perform manual tests

Review and analyze system specifications

Follow the test plan

Help troubleshoot issues

Work with cross-functional teams to ensure quality throughout the software development lifecycle

If you're looking for a job where you just complete tasks and write reports – this is not the role for you.
But if you're ready to go deep into real businesses, make strategic decisions, and truly grow as an SEO professional – welcome to Digital Traffic PRO 🚀

We’re a fast-growing SEO agency based in Germany, founded by Ukrainians, working with clients across the US and Europe. Now, we’re looking for a Middle SEO Specialist who’s ready to take ownership, drive impact, and bring smart SEO solutions to the table.
 

🔥 What Makes This Role Different:

• You won’t be a task executor — we want your ideas, hypotheses, and strategies.
• No bureaucracy — you have freedom to act without waiting for 10 approvals.
• Real time for real work — focus on 3–5 projects instead of juggling dozens.
• Work with serious SEO: US & EU markets, real competition, measurable impact.
• We cover training costs — whatever makes you stronger in SEO.
• We pay for English or German lessons, if you want to improve.
• We care about results, not about being online from 9 to 6.
   

✅ What We Expect from You:

• 2+ years of SEO experience, preferably in an agency setting.
• Hands-on experience with US or European markets (DACH is a big plus).
• Solid technical SEO knowledge — crawling, indexing, Core Web Vitals.
• Strong command of Google Search Console — you know every tab.
• Proficiency in tools like Ahrefs, Screaming Frog, and others.
• A strategic mindset — you understand marketing, not just search.
• Experience using AI tools & automation in SEO processes.
• Curiosity, experimentation, and love for problem-solving.
   

🧠 What You’ll Be Doing:

• Leading SEO projects for US and EU clients with ownership and autonomy.
• Digging deep into business models to find real growth levers.
• Conducting advanced SEO audits (technical, content, intent-based).
• Analyzing not just links — but full competitor strategies.
• Implementing AI and automation in SEO workflows.
• Building strategies that work — not just delivering docs.
• Handling up to 5 projects so you can focus and deliver real value.

What You’ll Do

• Turn growth briefs and hypotheses into clear creative concepts, scripts, and storyboards
• Produce and manage UGC creators, influencers, actors, voiceovers, editors, designers
• Actively use AI tools (image, video, script, voice) to speed up versioning and localization
• Own the full creative pipeline: idea → test asset → winner → scalable creative pack
• Collaborate daily with:
  • Growth Marketing — angles, messaging, offers, audience insights
  • UA — formats, placements, specs, testing structure
  • Product — funnel logic, paywalls, in-app experience
• Maintain a structured creative asset library (angle, persona, format, hook, language, app)
• Track TikTok / Reels / Shorts trends and adapt them to our apps and markets

• 3+ years in performance-driven creative (mobile apps, DTC, subscriptions, or agencies)
• Strong experience with video-first formats (TikTok, Reels, Shorts, UGC-style content)
• Ability to turn a dry performance brief into a simple, human story or hook
• Comfortable managing small productions end-to-end

• Data-curious mindset — you care how your creatives perform and want to see the numbers

   

Motion Designer (UA Creatives)
We are looking for a Motion Designer to create UA video creatives for paid channels: Meta, TikTok, YouTube.

Responsibilities:
- Creating and animating UA video creatives (6–30 sec)

- Animating text, UI elements, icons, simple characters

- Adapting creatives to different formats and placements

- Fast iterations and revisions based on feedback and performance metrics

- Close collaboration with marketing and the creative producer

Requirements
Must-have:

- After Effects — confident user (main working tool)

- Photoshop — basic level (asset preparation, minor edits)

- Understanding of UA creatives and performance-driven video

- Ability to create simple, clean, and highly readable animations

- Strong sense of timing, rhythm, and composition

- Working with text (hooks, CTAs, visual accents)

- Exporting videos for Meta / TikTok / YouTube

- Working with pre-made assets (PSD, Figma, footages)

Nice-to-have:

- AI tools for creative production (image/video generation, upscaling, voice, subtitles, etc.)

- Experience with mobile games or apps

- Understanding of A/B testing for creatives

- Basic editing and sound skills (cuts, transitions, music timing)

- Experience adapting creatives for different markets

We value
Data-driven mindset and creativity focused on results, not “beauty for beauty’s sake”

Ability to test ideas quickly and iterate without fear

Attention to detail and clean execution

Responsibility and realistic deadlines

Company Description

Are you an experienced Data Engineer ready to tackle complex, high-load, and data-intensive systems? We are looking for a Senior professional to join our team in Ukraine, Europe, working full-time on a project that will make a real impact in the public sector.

At Sigma Software, we specialize in delivering innovative solutions for enterprise clients and public organizations. In this role, you will contribute to building an integrated platform that collects, processes, and visualizes critical indicators, enabling better decision-making and analytics.

Why join us? You will work with a modern big data stack, have end-to-end involvement from ingestion to machine learning workflows, and be part of a professional team that values ownership, collaboration, and continuous improvement.

PROJECT
You will be involved in developing an integrated platform that processes both batch and streaming data, ensures secure and governed data environments, and supports advanced analytics and machine learning workflows. The solution will leverage modern big data technologies to provide actionable insights for the public sector.

Job Description

• Design and implement data ingestion pipelines for batch and streaming data
• Configure and maintain data orchestration workflows (Airflow, NiFi) and CI/CD automation for data processes
• Design and organize data layers within Data Lake architecture (HDFS, Iceberg, S3)
• Build and maintain secure and governed data environments using Apache Ranger, Atlas, and SDX
• Develop SQL queries and optimize performance for analytical workloads in Hive/Impala
• Collaborate on data modeling for analytics and BI, ensuring clean schemas and dimensional models
• Support machine learning workflows using Spark MLlib or Cloudera Machine Learning (CML)

Qualifications

• Proven experience in building and maintaining large-scale data pipelines (batch and streaming)
• Strong knowledge of data engineering fundamentals: ETL/ELT, data governance, data warehousing, Medallion architecture
• Strong SQL skills for Data Warehouse data serving
• Minimum 3 years of experience in Python or Scala for data processing
• Hands-on experience with Apache Spark, Kafka, Airflow, and distributed systems optimization
• Experience with Apache Ranger and Atlas for security and metadata management
• Upper-Intermediate English proficiency

WILL BE A PLUS

• Experience with Cloudera Data Platform (CDP)
• Advanced SQL skills and Hive/Impala query optimization
• BS in Computer Science or related field
• Exposure to ML frameworks and predictive modeling

PERSONAL PROFILE

• Ownership mindset and proactive approach
• Ability to drive initiatives forward and suggest improvements
• Team player with shared responsibility for delivery speed, efficiency, and quality
• Excellent written and verbal communication skills

About the Client

The client is a fintech company developing digital banking and financial solutions.

You will join the team to work on backend development and banking integrations.

Responsibilities

 • Backend development using Node.js
 • Integration with external banking and financial APIs
 • Development and maintenance of platform modules
 • Work with databases (SQL/NoSQL)
 • Collaboration with the client’s engineering team

Requirements

 • 4+ years of experience in backend development
 • Strong knowledge of Node.js
 • Experience with external API integrations
 • Understanding of databases (SQL/NoSQL)
 • English B1+

Nice to Have

 • Experience in fintech or banking projects
 • Knowledge of modern backend tools and approaches (e.g., microservices, Docker, CI/CD)

Benefits

• Fully remote collaboration
• 14 paid vacation days, 5 paid sick days, and 4 paid public holidays annually
• Opportunity to grow through hands-on experience
• Collaborative and supportive team where initiative is valued
• Annual salary review based on performance and contribution

Reteno is the messaging platform for app user retention. It’s designed to identify and retain the right users through perfectly timed and channel-optimized campaigns without developers. We help mobile teams grow their product and revenue through personalized push notifications, in-apps, emails, SMS, and more. Reteno is trusted by 300+ leading brands worldwide, including Welltech, Boosters, Reface, RetouchMe, and plenty of smaller apps that scale with us. We are currently looking for a Sales Manager (Active sales).

KEY RESPONSIBILITIES:

• Closing the deals
• Attracting clients through various channels;
• Selling the functional capabilities of the Reteno platform to potential clients;
• Identifying needs and assessing the potential of leads;
• Conducting demos (presentations) during online meetings;
• Crafting well-structured commercial proposals;

• Maintaining accurate and organized work within internal systems and CRM.

   

SKILLS AND EXPERIENCE:

• Proven track record of successfully working with B2B clients;
• Strong ability to achieve results;
• Consistently meeting monthly and quarterly sales targets;
• Proficient in English at an Upper-Intermediate (B2) level and continuously improving;

• Committed to the ongoing development of hard and soft skills.

   

WOULD BE A PLUS:

• Experience working with mobile applications.
• Experience working at B2B SaaS or other product companies.

• A solid understanding of digital marketing.

   

WE OFFER:

• Flexible 8-hour work schedule, Mon-Fri.
• Opportunity to work remotely or with a hybrid schedule.
• 18 working days of vacation and official holidays off.
• Partial compensation for English language courses and other educational programs;

• An awesome team of professional and fun individuals.

   

If you’re looking for a dynamic and ambitious product company with continuous innovations and exciting projects (Reteno, eSputnik, Yespo) — join our team.

We know that cooperation, decency, customer orientation and responsibility for the result lead us to the best practices. Your strongest skills will grow even stronger, empowering our projects and allowing you to take pride in achieving outstanding results.

Work with a team of professionals where your decisions matter.

Must have

• Critical thinking and analytical skills
• Strong AI skills
• 1+ experience in management
• Advanced English
• A result-oriented approach

• Cheerful responsible personality

   

   

Requirements

• Project Management Experience: Planning and organizing team activities (setting goals, defining requirements, and controlling deadlines).
• AI tools
• Presentation Skills: Confidently and clearly deliver presentations to both the team and clients.
• Knowledge in Project lifecycle
• Risk Management skills: Identifying, analyzing risks, and developing response plans.
• Team Management skills : Organizing retrospectives, sprint planning, and leading daily standups.

• High communication and negotiation skills:

  • Ability to establish effective communication between clients and the team
  • Active listening skills and the ability to understand the needs of both the team and clients.
  • Strong communication skills for regularly updating clients on project progress and potential risks.
  • Ensure mutual understanding and agreement between the client and the team

   

Would be a plus

• Upwork platform experience
• Web-based IT project experience

Key Responsibilities

• Make decisions in uncertain conditions, considering risks and priorities.
• Plan and organize teamwork to achieve results within set deadlines.
• Ensure process transparency: communicate clearly with clients and the team, informing them about changes and risks.
• Conduct negotiations with clients, understanding their needs and expectations.
• Analyze project data and outcomes for continuous improvement.
• Foster a collaborative team atmosphere, maintaining motivation and efficiency.
• Provide your team members with a feedback
• Be in charge of the delivery flow process

We offer

• competitive salary and bonuses
• an opportunity to work on interesting projects with a team of experts
• professional and personal growth through the company’s encouraging program
• feedbacks from supervisors and team members on a regular basis
• flexible working hours
• flexible vacation policy
• paid sick leaves
• English/Psychology classes
• training programs
• team buildings and corporate events (check our Instagram profile for details)

What We Value:
- Upper-Intermediate or higher English proficiency
- Proven experience managing multiple mobile and web development projects
-  Strong client communication and relationship-building skills
-  Solid understanding of the full software development lifecycle
-  Experience working in Agile/Scrum environments
-  Ability to coordinate between clients, design, development, and QA teams

Responsibilities:
-  Managing several mobile and web development projects simultaneously
-  Serving as the main point of contact for international clients
-  Gathering requirements and helping define clear scopes of work
-  Planning, prioritizing, and monitoring project timelines and deliverables
-  Conducting regular meetings and status updates with clients and the team
-  Ensuring project delivery meets quality standards and deadlines

We Offer:
-  Friendly and professional team environment
-  8-hour work schedule (Mon–Fri)
-  Long-term collaboration with interesting and diverse projects

Spendbase is a fast-growing fintech startup revolutionising the way companies manage cloud, SaaS, and other corporate expenses. From vendor negotiations to procurement, we help businesses get the most value from their investments.

We are looking for an open-minded and proactive Junior / Trainee HR Manager to join our team. This role is perfect for someone eager to start a career in Human Resources, gain hands-on experience, and learn HR processes from A to Z in a dynamic startup environment.

🤝 Office-based role for candidates located in Kyiv.

Who We’re Looking For:

- No prior HR experience required, but a strong interest in Human Resources is essential
- Upper-Intermediate English level (B2+)
- Strong communication and organisational skills
- Proactive, creative, and people-oriented mindset
- Willingness to take ownership of tasks and see them through
- High level of responsibility when working with confidential information

Nice to Have:

- Previous internship or work experience in IT companies or startups

What You’ll Be Doing:

- Maintain military records and ensure compliance with local regulations (full training will be provided)
- Assist with employee documentation and HR records
- Provide administrative support for HR processes, including onboarding
- Plan and organise corporate events, team-building activities, and internal community initiatives
- Support office management and day-to-day HR operations
- Collaborate with HR and Security teams to ensure smooth internal processes

What We Offer:

- Unlimited growth opportunities if you perform well
- Mentorship and hands-on experience across the full HR lifecycle in a startup
- Regular salary reviews and paid overtime
- Paid vacation and sick leave
- Online medical consultations
- English language courses
- Supportive team and people-first culture

If you’re ready to kick-start your HR career and grow with a fast-paced fintech startup, we’d love to hear from you! 🚀

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.

Description

We’re looking for a Manual QA Engineer to validate a robotic system end-to-end on real hardware. You’ll execute test scenarios in the lab, analyze logs, reproduce defects, and collaborate closely with developers and systems/robotics engineers to ensure safe and reliable behavior. This is a 100% onsite position in our Kraków office/lab. Remote work is not available.

Requirements

• 4+ years experience as a Senior Manual QA / Software Test Engineer (or strong equivalent experience)
• Solid understanding of QA fundamentals: test design, defect lifecycle, risk-based testing
• Confident Linux user (terminal, logs, basic troubleshooting)
• Experience testing complex systems (embedded, robotics, automotive, medical, IoT, or similar)
• Strong communication skills and ability to work with engineers on technical issues

• Good English (B2+), written and spoken

   

Job responsibilities

• Perform manual testing of a robotic system in a lab environment (functional, regression, integration, exploratory).
• Proactive, self-driven mindset: this is an R&D environment, so you’re expected to independently investigate issues, dig into logs/behavior, and drive root-cause analysis in collaboration with engineers.
• Static testing responsibilities: review requirements/specs, interfaces and testability; perform static analysis of documentation/design (incl. checklists, consistency, ambiguity, completeness) and provide early feedback before execution testing.
• Execute test cases, document results, and report defects.
• Work with Linux: basic CLI operations, log collection, process/service checks, networking basics.
• Analyze system logs and traces to narrow down issues.
• Validate firmware/software releases on hardware; support smoke tests and release readiness.
• Validate tools.
• Maintain and improve test documentation: test cases, checklists, test reports, test data.
• Collaborate daily with cross-functional teams (developers, systems, robotics, HW) to debug and verify fixes.

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!

Requirements: 

• Requires 4 or more years of related experience, maintenance, and administration of PostgreSQL databases.   
• Previous SQL Server and/or Oracle database administration experience is a plus.  
• Strong writing and verbal communication skills.   
• Displays excellent collaborative skills with cross-functional teams.  

Responsibilities:  

• The DBA should have knowledge of some industry standard PostgreSQL databases including creation and implementation of fully functional PostgreSQL database clusters (both in the cloud AWS RDS and on-premises), ability to maintain multiple development, QA, and production PostgreSQL environments with experience in performance tuning.  
• Review existing configurations and installations and provide design decisions for improvements to platform environments.  
• Assist in planning and performing PostgreSQL database upgrades and migrations.  
• Perform production level support and be part of the on call rotation when required.  
• This position will be responsible for supporting new and existing PostgreSQL database systems, both internally and future Cloud managed instances and will contribute in defining best practices in database administration, and introduce innovation with automation.  
• Proficient with the Linux operating systems - Ubuntu, RHEL.  
• Assist in implementing long-term strategic goals for database development in conjunction with end users, managers, clients, and other stakeholders.   
• Perform debugging, tuning, and performance enhancement as well as automation of operational and continuous integration aspect of the PostgreSQL platform.  
• Independently analyzes, solves, and corrects issues in real time, providing problem resolution end-to-end.  

Company offers: 

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

 As an Application Security Team Lead at JFrog, you will… 

• Build and lead a team of security researchers and penetration testers. • Help to reshape JFrog Product Security  

• Plan and execute advanced penetration testing campaigns. 

• Develop tools and frameworks for scalable security testing and fuzzing. 

• Lead Security innovation by building and managing penetration testing tools \ AI Agents 

• Analyze vulnerabilities, perform root cause analysis, and develop proofs of concept. 

• Identify systemic product weaknesses and help define long-term mitigations. 

• Collaborate with engineering teams to reproduce, triage, and fix vulnerabilities. 

• Contribute to security research publications, CVE submissions, and industry knowledge sharing. 

• Continuously evolve internal testing capabilities using modern tooling and AI-assisted approaches. 

To be an Application Security Team Lead at JFrog, you need… 

• Proven 2+ years of experience in leading application security research Teams (SAAS or software company). 

• 7+ year experience in Research and penetration testing. 

• Strong coding skills and deep technical understanding of web, API, cloud-native, and backend technologies. 

• AI and LLM Penetration testing knowldge and Experience  

• Experience with penetration testing tools (Burp Suite, Metasploit, etc.) and Custom Security Tools development. 

• Familiarity with modern architectures (e.g., Cloud, microservices, containers, Kubernetes). 

• Familiarity with secure software architecture and typical attack vectors. 

• Demonstrated ability to lead security testing engagements and report technical findings effectively. 

• Experience building or integrating automated PT or fuzzing pipelines is a strong advantage. 

• Knowledge and hands-on experience with SSDLC tools and  CI/CD pipelines,  

• Publications or open-source contributions in the security domain are a plus.