Jobs at Djinni

JarvisHeart is a rapidly expanding global IT & Tech company based in Cyprus, dedicated to its team, providing an inspiring, dynamic work culture.

Established in 2024, we are aimed to deliver services and solutions for businesses. We attract and retain the best IT professionals, offering avenues for development and progress to provide exceptional solutions to clients around the globe. Join us and become a part of JarvisHeart’s success story.

Core Responsibilities

• Onboarding & Training: Onboard new support agents using internal guidelines and knowledge base materials; conduct structured training sessions to ensure full product, process, and tools proficiency before agents go live.
• Knowledge Base Management: Maintain and update training materials, scripts, in line with product and policy changes; ensure the team always operates from current documentation.
• Team Performance Oversight: Monitor day-to-day agent activity, track KPIs, and identify performance gaps; provide timely feedback, coaching, and corrective guidance.
• Chat & Quality Review: Regularly audit agent conversations across all channels (live chat, emais); score interactions against quality rubrics and deliver structured feedback.
• Scheduling: Build and manage shift schedules for the support team, ensuring full coverage across all time zones and shifts while balancing team workload.
• Task Management: Assign tasks and priorities to agents based on queue load and business needs; coordinate daily team stand-ups and briefings.
• Reporting: Prepare regular performance reports (daily, weekly, monthly) covering key metrics: CSAT, FCR, SLA compliance, and individual agent stats; present findings to management.
• Escalation Handling: Act as the first escalation point for complex or sensitive player cases; liaise with Antifraud, Billing, and Retention teams to resolve issues efficiently.
• Process Improvement: Continuously identify workflow inefficiencies and propose improvements to increase team performance and player satisfaction.

Requirements

• Minimum 2 years of experience in customer support, with at least 1 year in a team lead, senior, or supervisory role.
• Strong written and verbal English communication skills (B2+ level) 
• Proven ability to train, coach, and develop support agents from onboarding through to independent performance.
• Experience with quality assurance processes: chat auditing, scoring, and structured feedback delivery.
• Confident working with CRM, helpdesk, and scheduling tools (LiveChat, Zendesk, Intercom, or similar).
• Strong organizational skills — able to manage schedules, task distribution, and reporting simultaneously.
• Data-oriented mindset: ability to read performance dashboards, identify trends, and translate numbers into action plans

Nice to Have

• Background in iGaming, betting, or FinTech — Tier-1 market experience is a strong advantage.
• Familiarity with KYC / AML procedures and responsible gambling frameworks.
• Experience working with distributed remote teams across multiple time zones.
• Additional language skills beyond English.

Remote Work Conditions:

• Fully remote position
• Personal equipment required (PC/laptop + stable internet connection)
• All work and communication tools provided by the company

What we offer:

• 17 vacation days (Enjoy vacation policy to recharge and explore. We believe work-life balance is key to personal and professional well-being.)
• 15 paid sick days (Your health matters. We offer paid sick leave to ensure you can recover without financial stress)
• Insurance after the probation period (Your well-being is our priority. After completing the probationary period, you’ll gain access to our comprehensive insurance plan to support your health and peace of mind.)
• Public holidays off (Take time to celebrate and enjoy national holidays with friends and family without worrying about work.)
• Work equipment provided (Start your journey with the best tools for success! We provide all the necessary equipment to help you work efficiently and comfortably.)

• Work Schedule Monday-Friday: 10-19

   

JarvisHeart is a rapidly expanding global IT & Tech company based in Cyprus, dedicated to its team, providing an inspiring, dynamic work culture.

Established in 2024, we are aimed to deliver services and solutions for businesses. We attract and retain the best IT professionals, offering avenues for development and progress to provide exceptional solutions to clients around the globe. Join us and become a part of JarvisHeart’s success story.

Core Responsibilities

• Onboarding & Training: Onboard new support agents using internal guidelines and knowledge base materials; conduct structured training sessions to ensure full product, process, and tools proficiency before agents go live.
• Knowledge Base Management: Maintain and update training materials, scripts, in line with product and policy changes; ensure the team always operates from current documentation.
• Team Performance Oversight: Monitor day-to-day agent activity, track KPIs, and identify performance gaps; provide timely feedback, coaching, and corrective guidance.
• Chat & Quality Review: Regularly audit agent conversations across all channels (live chat, emais); score interactions against quality rubrics and deliver structured feedback.
• Scheduling: Build and manage shift schedules for the support team, ensuring full coverage across all time zones and shifts while balancing team workload.
• Task Management: Assign tasks and priorities to agents based on queue load and business needs; coordinate daily team stand-ups and briefings.
• Reporting: Prepare regular performance reports (daily, weekly, monthly) covering key metrics: CSAT, FCR, SLA compliance, and individual agent stats; present findings to management.
• Escalation Handling: Act as the first escalation point for complex or sensitive player cases; liaise with Antifraud, Billing, and Retention teams to resolve issues efficiently.
• Process Improvement: Continuously identify workflow inefficiencies and propose improvements to increase team performance and player satisfaction.

Requirements

• Minimum 2 years of experience in customer support, with at least 1 year in a team lead, senior, or supervisory role.
• Strong written and verbal English communication skills (B2+ level) 
• Proven ability to train, coach, and develop support agents from onboarding through to independent performance.
• Experience with quality assurance processes: chat auditing, scoring, and structured feedback delivery.
• Confident working with CRM, helpdesk, and scheduling tools (LiveChat, Zendesk, Intercom, or similar).
• Strong organizational skills — able to manage schedules, task distribution, and reporting simultaneously.
• Data-oriented mindset: ability to read performance dashboards, identify trends, and translate numbers into action plans

Nice to Have

• Background in iGaming, betting, or FinTech — Tier-1 market experience is a strong advantage.
• Familiarity with KYC / AML procedures and responsible gambling frameworks.
• Experience working with distributed remote teams across multiple time zones.
• Additional language skills beyond English.

Remote Work Conditions:

• Fully remote position
• Personal equipment required (PC/laptop + stable internet connection)
• All work and communication tools provided by the company

What we offer:

• 17 vacation days (Enjoy vacation policy to recharge and explore. We believe work-life balance is key to personal and professional well-being.)
• 15 paid sick days (Your health matters. We offer paid sick leave to ensure you can recover without financial stress)
• Insurance after the probation period (Your well-being is our priority. After completing the probationary period, you’ll gain access to our comprehensive insurance plan to support your health and peace of mind.)
• Public holidays off (Take time to celebrate and enjoy national holidays with friends and family without worrying about work.)
• Work equipment provided (Start your journey with the best tools for success! We provide all the necessary equipment to help you work efficiently and comfortably.)

• Work Schedule Monday-Friday: 10-19

   

Responsibilities
Design, build, and maintain end-to-end data pipelines using Palantir Foundry

Develop and manage data models, transformations, and workflows within Foundry

Integrate data from multiple sources (APIs, databases, files, event streams)

Ensure data quality, reliability, security, and governance across data products

Optimize performance and scalability of data pipelines and analytics workloads

Collaborate with product managers, analysts, and stakeholders to translate business needs into data solutions

Support analytics, reporting, and advanced use cases (including ML/AI where applicable)

Contribute to best practices, documentation, and data platform standards

Requirements (Must-Have)
Senior-level experience as a Data Engineer (5+ years)

Palantir certification (Foundry)

Strong hands-on experience working with Palantir Foundry in production

Excellent proficiency in Python and SQL

Experience building and operating cloud-based data platforms

Solid understanding of data modeling, ETL/ELT, and data warehousing concepts

Strong focus on data quality, governance, and security

Experience working in Agile, cross-functional teams

Professional working proficiency in English

Must be located in Europe

Nice to Have
Experience with cloud platforms (AWS, Azure, or GCP)

Exposure to analytics engineering or data product development

Experience working in regulated or enterprise environments

About AIstats

AIstats is transforming the football data market by moving from 2D to 3D, powered by a cutting-edge Computer Vision and Machine Learning ecosystem that unlocks deep insights for both fans and professionals.

What we build

Advanced Football Analytics — a mobile app for football fans an— a mobile app for football fans and bettors that reached 100k MAU in less than a year, featuring advanced statistics powered by our proprietary ML and Computer Vision technologies.

Advanced Analytics for Football Clubs — a next-generation analytics platform helping football clubs, scouts, and agents make smarter decisions both on the pitch and in the transfer market. Thanks to our early leadership in skeletal tracking data, AIstats secured several Tier-1 club partnerships within months of launching the platform.

Responsibilities

• Develop and improve statistical and machine learning models
• Analyze large-scale datasets using Python and SQL
• Conduct statistical analysis, hypothesis testing, and experiment evaluation
• Build interpretable ML solutions and explain model behavior
• Collaborate with cross-functional teams on data-driven initiatives

Requirements

• 3+ years of experience as a Data Scientist
• Strong Python skills with NumPy, Pandas, and scikit-learn
• Solid SQL knowledge; R is a plus
• Strong understanding of probability theory and mathematical statistics
• Experience with statistical testing: t-test, χ², ANOVA, Mann-Whitney, Wilcoxon, KS test, bootstrap/permutation tests, Bonferroni and FDR corrections
• Hands-on experience with XGBoost, LightGBM, and CatBoost
• Understanding of Bayesian methods
• Experience with longitudinal/panel data, mixed/fixed/random effects models, and repeated measures
• Experience with interpretable ML approaches: GAM, SHAP, partial dependence, counterfactual analysis

Nice to Have

• Experience with deep learning: Transformers, attention mechanisms, RNN/LSTM
• Knowledge of Graph Neural Networks
• Experience with Reinforcement Learning: PPO, MAPPO, MAT, multi-agent RL
• Familiarity with Google Research Football or similar environments
• Advanced Bayesian statistics: PyMC, Stan, numpyro, MCMC, hierarchical models
• Experience with causal inference: DAGs, instrumental variables, difference-in-differences
• Knowledge of probabilistic spatial models: Markov chains, HMM/DBN, MRF/CRF, Gaussian processes

What we offer

• Fully remote work format;
• Flexible start of the working day and convenient schedule;
• Stable competitive salary pegged to the USD;
• 24 days of paid vacation and 15 additional paid days off (including sick leave, corporate holidays, and national/religious holidays);
• Friendly communication culture, great product, and transparent processes;
• Dynamic work environment with a passionate team that loves sports and technology;
• Opportunities for professional growth and career development;
• No micromanagement — just trust, autonomy, and freedom to experiment.

Join our team and help drive innovation in the football industry!

Admiral Studios is a fast-growing Ukrainian IT outsourcing company, specializing in web development, mobile development, UI/UX, and SEO.

We embrace the latest and most advanced technologies: Node.js, React, Laravel, Shopify, Python, and WordPress.

We create quality projects for clients in the US, Europe, the UK, and Canada 🌍, especially Healthcare, Real Estate, and E-commerce projects.

Currently, our team consists of more than 60+ skilled experts 👨‍💻, and we are constantly growing.

Now, we’re looking for a SEO Consultant / SEO Mentor (Part-time) ⭐️ to help us strengthen and scale our SEO expertise across multiple projects. If you have deep hands-on SEO experience, enjoy mentoring teams, and know how to build effective SEO processes — this role is for you.
As a part of our growth team, you’ll work closely with SEO specialists, management, and clients, helping shape strategy, improve workflows, and drive measurable results.

For a perfect match, we expect 🎯

• 5+ years of practical SEO experience, including at least 2 years as a Senior SEO Specialist / SEO Team Lead / Head of SEO
• Experience mentoring SEO specialists or managing SEO teams (3–5+ people)
• Strong background working simultaneously with multiple projects in niches such as B2B, SaaS, and E-commerce
• Hands-on experience building or restructuring SEO processes from scratch
• Ability to quickly identify bottlenecks, diagnose process issues, and provide actionable solutions
• Mentorship mindset — not just “doing the work,” but teaching the team how to approach SEO correctly
• Strong communication and presentation skills, with the ability to explain complex SEO concepts to specialists, managers, and clients
• Structured thinking and process-oriented approach (briefs, checklists, frameworks, documentation)
• Confident experience with technical SEO: crawl budget, indexation, Core Web Vitals, JS rendering, log analysis, structured data
• Deep understanding of On-page SEO: semantic clustering, content strategy, internal linking
• Practical Off-page SEO expertise: outreach, white-hat link building, backlink profile analysis
• Understanding of AI/LLM SEO and GEO (Generative Engine Optimization)
• Experience with Google Search Console, Google Analytics 4, Looker Studio
• Strong knowledge of Ahrefs / Semrush / SimilarWeb for audits and competitor analysis
• Experience with Screaming Frog / Sitebulb for technical audits and custom extractors
• Understanding of Google algorithms, including Core Updates, Helpful Content, and E-E-A-T principles
• Basic understanding of HTML/CSS/JS for effective collaboration with developers
• Upper-Intermediate English level (B2+) or higher

Nice to have 💎

• Experience with international / multilingual SEO (hreflang, geo-targeting)
• Experience working with educational or content-driven websites
• SEO automation experience using Python, Apps Script, n8n, or Zapier
• Public speaking experience, blogging, or active participation in SEO communities
• Google / Ahrefs / Semrush certifications
• Previous consulting experience with agencies or multiple external clients
• Duties & Responsibilities 💼
• Conduct audits of existing SEO processes and identify inefficiencies, communication gaps, and growth opportunities
• Develop and improve SEO strategies for client and internal projects
• Provide regular consultations and mentorship sessions for the SEO team (1:1 and group format)
• Review technical, content, and off-page SEO tasks with practical recommendations
• Support SEO specialists in solving complex and non-standard challenges
• Build internal SEO standards, templates, чеклісти, and documentation
• Collaborate with management on team development and SEO direction
• Participate in improving workflows, reporting structures, and operational efficiency
• Analyze SEO performance, identify growth opportunities, and adapt strategies according to algorithm updates
• Work closely with developers, content specialists, and management to ensure effective SEO implementation
• Contribute to scaling and maturity of the SEO function within the company
• Flexible part-time format: approximately 10 hours per week with mostly asynchronous communication and 1–2 sync meetings

Why Join Admiral Studios?

⭐️Growth-Oriented Environment – value efficiency, flexibility, and results. 

🤝Team Spirit – Regular corporate online & offline events to keep the team connected
📚Professional Development Support – we provide:

• A structured Performance Review system.
• Access to an internal knowledge library.
• Career growth opportunities with a clear development plan.
• A budget for improving work processes and implementing new ideas.

🧘Work-Life Balance – Enjoy a flexible work schedule and a fully remote work model.
✅Paid Time Off – 20 vacation days + 10 sick leave days per year.

💰Competitive compensation package - fixed salary + performance-based bonuses tied to closed deals and sales results.

Hiring steps: 
Screening — Tech Interview — CEO Interview — Job Offer 

If your experience and skills match our candidate scorecard, the recruiting team will contact you within 5 business days 💙

Don't forget to provide your Telegram nickname for contact.

A unique opportunity to take part in building an R&D team for a global company.

We are seeking highly experienced and visionary formal verification engineers to contribute to the development of advanced AI connectivity architectures and help define the formal verification methodology from the ground up.

Responsibilities:

• Define and execute formal verification strategies and methodologies for complex SoCs, IPs, and networking architectures (Switches, NICs, SmartNICs).
• Develop, implement, and maintain formal verification environments and test plans from concept to production.
• Specify formal properties, assertions, and constraints using formal tools and SystemVerilog Assertions (SVA).
• Own the formal verification environment, including setup, maintenance, and integration with simulation-based flows.
• Collaborate closely with architecture, RTL, and design teams to identify corner cases, ensure functional correctness, and drive verification sign-off.

Qualifications:

• B.Sc. in Computer Science or Computer Engineering.
• 3+ years of industry experience in formal verification.
• Proven experience with JasperGold, VC Formal, or similar formal verification tools.
• Demonstrated ownership and maintenance of formal verification environments.
• Strong analytical and problem-solving skills.
• Team player with excellent interpersonal and communication abilities.
• English - Upper-Intermediate.

Advantages:

• Experience as a verification engineer with practical knowledge of SystemVerilog and UVM methodology.
• Familiarity with networking architectures and IPs (Switches, NICs, SmartNICs).
• Experience integrating formal verification within broader project verification flows.

We offer:

• 5-day working week, 8-hour working day, flexible schedule.
• No time tracker.
• Competitive salary.
• Work-life balance.
• Remote work.
• Standard social guarantees: annual leave, sick days.
• We understand the value of knowledge and training, so if you will find interesting and useful courses for yourself, we will pay for them.
• We value life and work time therefore all issues are resolved on the spot without unnecessary bureaucracy.

DevCom is looking for a Trainee QA!
If you have a solid theoretical foundation in manual and mobile testing and a strong desire to learn, we invite you to join our Student Program, where you can gain hands-on experience, improve your skills, and grow in a professional environment.

The benefits of our student program:

— Personal mentor for each student
— 100% employment in case of successful completion of the student program
— Student program for three months. In this period, the stipend will be paid ($300 gross per month)

Work mode: This is a full-time position located in our Lviv office (hybrid is also available). While we prioritize candidates who are based in Lviv and able to attend the office, we are also happy to consider applicants from other regions of Ukraine.
 

Required Skills:

• Completed thorough testing courses are a mandatory requirement
• English — Intermediate plus  and higher (written and spoken)
• Basic understanding of software testing theory
• Understanding of mobile application testing
• Basic understanding of the software development process
• Familiar with the design and development of test documentation (test case, bug report, checklist)
• Familiar with SDLC/STLC
• Basic knowledge of HTML
• Good knowledge of Database (be able to write database queries to verify data as part of testing)
• Basic understanding of Agile/Scrum
• Ability to analyze and structure information
• Excellent attention to detail
• The ability to work autonomously as well as part of a team
• A logical, curious, and analytical mindset with a desire to interrogate data
• Excellent presentation and communication skills

Nice to have:

• Final year student or young specialist in the STEM field (Science, Technology, Engineering and Mathematics)
• Familiar with API testing (Postman/Swagger)
• Being familiar with Jira will be a plus
• Basic understanding of the client-server application architecture
• Basic understanding of LLMs (ChatGPT etc.) and prompt engineering
• Pet projects or practical testing experience

What do we offer after successful completion of the student program:
Salary $500 gross per month
Performance review every six months
Opportunities for career and professional development
English classes and other L&D activities like courses and certifications reimbursement
Recognition gifts and awards
Benefit program with the opportunity for compensation to cover the following expenses of their choice:

• Sports activities (these can be one-time sessions or monthly or annual subscriptions)
• Payment of medical expenses (treatment and preventive procedures at the dentist, services, and consultations with doctors, medical examinations, and tests)
• Psychologist consultations
• Medical insurance
• Training for the development of professional skills (hard and soft skills), including the purchase of necessary educational literature
• Courses in traditional arts and creativity (such as drawing, music, photography).
• Individual English language improvement classes- Employee referral program

21 working days — paid vacations
10 paid sick leaves
IT club membership

The next step is to perform the test.

After that will be a short interview conducted by recruiter — 15 minutes

Then — technical interview.

In case of success — offer!

Transparency and communication are highly valued by us. Our recruitment process includes feedback at every stage, ensuring that you are consistently informed and engaged.

Looking for a Data Engineer to join the Dataforest team. If you are looking for a friendly team, a healthy working environment, and a flexible schedule ‒ you have found the right place to send your CV.

Skills requirements:
• 2+ years of experience with Python;
• 2+ years of experience as a Data Engineer;
• Experience with Pandas;
• Experience with SQL DB / NoSQL (Redis, Mongo, Elasticsearch) / BigQuery;
• Familiarity with Amazon Web Services;
• Knowledge of data algorithms and data structures is a MUST;
• Working with high volume tables 10m+.

Optional skills (as a plus):
• Experience with Spark (pyspark);
• Experience with Airflow;
• Experience with Kafka;
• Experience in statistics;
• Knowledge of DS and Machine learning algorithms..

Key responsibilities:
• Create ETL pipelines and data management solutions (API, Integration logic);
• Different data processing algorithms;
• Involvement in creation of forecasting, recommendation, and classification models.

We offer:

• Great networking opportunities with international clients, challenging tasks;

• Building interesting projects from scratch using new technologies;

• Personal and professional development opportunities;

• Competitive salary fixed in USD;

• Paid vacation and sick leaves;

• Flexible work schedule;

• Friendly working environment with minimal hierarchy;

• Team building activities, corporate events.

Dataforest is looking for a Data Scientist to join an interesting software development project in the field of Cybersecurity. Our client's platform offers Identity Insights drives real-time, multi-contextual digital forensics to protect new account opening workflows and expose fake accounts already in a customer database.

    Required Qualifications

• 2+ years of experience working with large-scale, complex datasets.
• Experience with imbalanced data.
• High proficiency in Python for data analysis, feature engineering and modeling.
• Expertise in exploratory data analysis and preparing clean, structured datasets for model development.
• Hands-on experience with AI/ML techniques:
• Supervised (eg. gradient boosting, decision trees, etc.)
• Unsupervised (eg. anomaly detection, clustering, etc.)
• Familiarity with basic statistical concepts and model evaluation metrics (eg. precision, recall, ROC-AUC).
• Upper-intermediate (B2) or higher level of English.
  
  Nice to Have
• Hands-on experience in the fraud/risk domain.
• Experience with Databricks (including Pyspark) for data processing, experimentation, and model development.
• Experience in MLflow library for experiment tracking and model lifecycle management.
• Experience working with diverse data sources (e.g., behavioral, device, or transactional data) and deriving meaningful features.
• Experience assessing data quality and validating new data sources in production environments.

     Key Responsibilities

• Analyze large-scale transaction datasets to identify fraud patterns and risk signals.
• Develop and validate ML models for risk scoring and fraud detection/classification.
• Support deployment of models into production environments by collaborating with the development team.
• Monitor model performance, conduct regular evaluations, analyze the results.
• Perform feature engineering to continuously improve model performance.
• Collaborate with the client on R&D efforts, including exploratory data analysis, feature development, and testing new approaches.

     We offer

• Great networking opportunities with international clients, challenging tasks;
• Building interesting projects from scratch using new technologies;
• Personal and professional development opportunities;
• Competitive salary fixed in USD;
• Paid vacation and sick leaves;
• Flexible work schedule;
• Friendly working environment with minimal hierarchy;
• Team building activities and corporate events.

We are looking for a visionary and hands-on Senior Backend Developer / Tech Lead to drive the technical evolution of our high-performance microservices ecosystem at Dataforest. If you are passionate about building scalable, high-load systems, defining architectural patterns, and guiding a talented engineering team in a healthy, flexible working environment — we want you on board!

    Technical Requirements:

• 4+ years of commercial experience in backend development using Python;
• Proven track record of designing and scaling high-load (Highload) applications and distributed systems;
• Deep expertise in FastAPI (advanced async patterns, dependency injection, architecture optimization, Pydantic v2);
• Extensive hands-on experience with GraphQL in production (advanced schema design, federation/subgraphs, N+1 problem resolution, resolver optimization);
• Strong mastery of asynchronous programming in Python (asyncio, advanced concurrency models);
• Production experience with AWS infrastructure;
• Advanced knowledge of SQL  databases, mastering query optimization, indexing strategies, and database sharding/replication (e.g., PostgreSQL + SQLAlchemy/Tortoise);
• Deep understanding of microservices patterns (Event-Driven Architecture, CQRS, Saga pattern, API Gateways, Service Mesh).
   

     Optional skills (as a plus):

• Experience with specialized GraphQL tools like Strawberry, Ariadne, or Apollo Router/Federation;
• Advanced usage of Redis (caching strategies, pub/sub);
• Experience with message brokers and task queues (Kafka, RabbitMQ, Celery) under heavy loads.
• Experience with third party integrations (payments, iGaming platforms, CRM and similar).
   

    Key Responsibilities:

• Architecture & Leadership: Design, build, and maintain scalable backend architectures using FastAPI and GraphQL; establish best practices, code standards, and technical roadmaps;
• High-Load Optimization: Solve complex scalability challenges, optimize system performance, eliminate bottlenecks, and ensure low-latency data delivery;
• Microservices & Infrastructure: Own the integration and evolution of a highly distributed microservices mesh built on AWS;
• Mentorship & Code Quality: Lead technical discussions, conduct rigorous code reviews, and mentor Middle/Junior developers, fostering a culture of engineering excellence;

• Cross-functional Collaboration: Act as a key technical point of contact, collaborating with Data Science, Data Engineering, and product stakeholders to design robust data-retrieval and processing APIs.
   

  We offer:

• Great networking opportunities with international clients, challenging tasks;
• Building interesting projects from scratch using new technologies;
• Personal and professional development opportunities;
• Competitive salary fixed in USD;
• Paid vacation and sick leaves;
• Flexible work schedule;
• Friendly working environment with minimal hierarchy;
• Team building activities, corporate events.

  Hi! We are looking for a Senior React Native Developer to join our pack at SharksCode 🦈💙
SharksCode is a Ukrainian IT company that develops high-tech software solutions and B2B platforms, particularly in the iGaming industry.
We are looking for a Senior React Native Developer who will take a key role in building and evolving our mobile products. In this position, you will be responsible for designing scalable mobile architectures, developing new features, optimizing application performance, and driving technical excellence across the team.

We expect that you:
– Have a higher technical education in Computer Science, Software Engineering, or a related field.
– Have 5+ years of commercial software development experience, including at least 3 years with React Native.
– Have strong proficiency in React, React Native, and TypeScript.
– Have hands-on experience with WebSocket, Zustand, Reanimated, FlatList, and LegendList.
– Confidently use AI tools for development, code review, and requirements analysis.
– Have a deep understanding of mobile application architecture and scalable solution design.
– Have practical experience optimizing the performance of React Native applications.
– Understand the mobile application lifecycle and platform-specific features of iOS and Android.
– Have experience working with REST APIs and third-party service integrations.
– Have experience conducting code reviews and mentoring developers.
– Possess strong communication skills and can collaborate effectively with cross-functional teams.
– Have excellent analytical thinking, system design skills, and attention to detail.

Your future responsibilities:
– Develop new functionality and maintain existing features of mobile applications.
– Design and evolve architectural solutions for mobile products.
– Write high-quality, maintainable, and high-performance code following internal engineering standards.
– Optimize application performance and improve user experience.
– Analyze and resolve complex technical issues and system bottlenecks.
– Conduct code reviews and ensure high code quality standards within the team.
– Participate in planning, estimation, and technical solution design.
– Mentor developers and promote engineering best practices.
– Initiate and implement technical improvements aimed at increasing product stability, performance, and scalability.

Nice to have:
– Experience in the iGaming domain.
– Proven experience optimizing high-load mobile applications.
– Experience developing Native Modules for iOS and Android.
– Strong understanding of animations and implementation of complex UI/UX solutions.
– Experience with Firebase, App Center, Sentry, or similar platforms.
– Experience working with high-load systems and real-time functionality.
– Strong ownership mindset, proactivity, and ability to make technical decisions independently.

Interview stages:
🤝 Interview with Recruiter.
🧠 Technical Interview.
💙 Offer.

We offer:
🌴 24 paid vacation days, 14 sick days, and 5 days off.
⏰ Flexible start of the working day — from 9:00 to 11:00.
🏥 Medical insurance.
💰 Bonuses and performance-based rewards.
🐶 Office in the center of Kyiv — pets are welcome, we are pet-friendly.
💆 Lounge area in the office to recharge during the day.
🎾 Padel tennis, football, and training at the polygon for those who enjoy active leisure.
📚 Learning compensation, internal meetups and workshops, as well as access to the corporate LMS with courses.
🎁 Corporate currency that can be exchanged for merch, gifts, or additional benefits.

GD Next is a European group of companies, specialising in KYC, Fraud prevention, financial messaging, and Open Banking solutions. We integrate innovative, modern technologies into the traditional financial sector to strengthen digital banking and enhance the customer experience. By combining proven, market-validated technologies with the expertise of our team and trusted partners across Europe, we deliver real and tangible value to our clients.

We are looking for a Junior Java Software Engineer to join our Open Finance project team. This is a great opportunity for aspiring developers who want to gain hands-on experience in financial technology and grow their expertise in Java development.
The role will also include participation in 24/7 project hotline support on a rotational basis for additional compensation.

Key Responsibilities:

• Develop and maintain backend services using Java and relevant frameworks.
• Assist in implementing solutions that align with OpenFinance and PSD2 standards.
• Support the integration of third-party financial institutions and payment service providers (ASPSPs).
• Work closely with senior developers and the customer project team to gather requirements, participate in design discussions, and contribute to the development process.
• Write and maintain clean, efficient, and well-documented code.
• Participate in code reviews to ensure adherence to best practices, security, and performance standards.
• Collaborate with front-end teams for seamless integration between backend and front-end components.
• Develop unit and integration tests to maintain code quality.

• Troubleshoot and debug issues in backend services.

   

Required Skills & Qualifications:

• Basic understanding of Java and hands-on experience in backend development.
• Familiarity with core Java concepts (OOP, multithreading, collections).
• Understanding of RESTful APIs and JSON.
• Knowledge of relational databases (PostgreSQL, MySQL, or similar).
• Experience using Git for version control.
• Basic understanding of web security concepts (OAuth 2.0, JWT, encryption techniques).
• Strong problem-solving skills and willingness to learn new technologies.
• Good communication and teamwork abilities.
• B2 English (Upper-intermediate or higher).

Desired Skills:

• Experience with Spring Framework (Spring Boot, Spring Security).
• Basic knowledge of cloud platforms (AWS, Azure) and containerization (Docker).
• Familiarity with CI/CD tools and deployment practices.
• Exposure to Agile methodologies (Scrum, Kanban).
• Interest in financial technology (FinTech) and willingness to learn OpenFinance and PSD2 regulations.

Additional Information:

• Candidates will have the opportunity to grow within the company and gain exposure to modern financial technologies.
• The role will include participation in 24/7 support on a rotational schedule (1 day on duty / 1 day off duty) for additional compensation.
• This is a great opportunity for junior developers to develop real-world experience in a fast-paced and innovative financial services environment.
• Location: Ukraine.
• The project language is Ukrainian.

Join our dynamic team at CoreWillSoft GmbH as an Automation QA Engineer! We build innovative security software for critical facilities and infrastructure, combining building automation, IoT, and physical access control to protect what matters most. 

We are looking for an experienced Automation QA Engineer to join our team and help us strengthen and modernize our QA processes. Our products are used by multiple businesses across Europe, the USA, and Canada, so quality, reliability, and long-term maintainability are essential to everything we build. 

Our Agile team operates from multiple locations, with headquarters in Bonn, Germany, and is responsible for the complete software development lifecycle, including initiation, implementation, and operation of physical access control software operating multiple electronic locks over different radio protocols and RFID identification media. 

This is an exciting opportunity to work on cutting-edge projects involving high-security hardware and technology in a creative, international environment. You will have the chance to build automation processes from scratch, collaborate with a tech-savvy team, and make a real impact on our product quality and customer experience. 

What you'll do: 

• Design, implement, and maintain automated tests for web, API, and system-level functionality. 
• Establish the foundation for test automation processes, tools, frameworks, and best practices within the QA team. 
• Analyze existing manual testing processes and identify areas suitable for automation. 
• Collaborate closely with Manual QA Engineers, Product Managers, and the development team to improve overall product quality. 
• Prepare and maintain QA-related documentation aligned with product and company needs. 
• Perform testing on physical security systems and extensions, ensuring their functionality, reliability, and stability. 
• Build and improve test coverage for regression, integration, API, and functional testing. 
• Support the integration of automated tests into CI/CD pipelines where applicable. 
• Continuously improve QA methodologies, testing processes, and quality standards across the team. 
• Share automation knowledge with the QA team and support the team's professional development. 
• Stay up to date with industry trends, tools, and best practices in QA automation and software testing. 

What we offer: 

• Meaningful Impact: Build solutions that are used every day by thousands of businesses - your work will directly improve real-world security and connected device experiences. 
• Product & Process Ownership: Help shape not only the product, but also how we build, test, and deliver it. Your ideas and decisions will have visible impact. 
• Opportunity to Build from Scratch: Take ownership of automation processes and help establish the foundation for scalable QA automation in the company. 
• Industry Influence: Contribute to key security standards and best practices, staying ahead of the curve in a fast-evolving industry. 
• Modern Tech Stack & Hardware: Work with the latest hardware and the tools you need to do your best work. 
• Time Off & Flexibility: Vacation days, paid sick leave, and public holidays in line with German legislation, plus flexibility built around outcomes rather than micromanagement. 
• Learning & Development Budget: We support continuous growth by covering hard and soft skills courses, trainings, and access to e-learning platforms. 
• Coworking Support: Prefer not to work from home every day? We offer coworking compensation so you can choose the environment that fits you best. 
• Language Learning Support: Monthly fixed compensation you can use to improve your English or German through the learning format of your choice. 
• Strong Team Culture: Open collaboration, a flat structure, and thoughtful onboarding - your voice is heard, and you can make an impact from day one. 

What you'll bring: 

• Proven experience in QA automation testing for web, mobile, desktop, API, or complex software products. 
• Experience building / improving automation frameworks, ideally from an early-stage. 
• Strong understanding of QA methodologies, tools, and processes. 
• Good knowledge of the Software Development Lifecycle. 
• Experience with test planning, test execution, reporting, and test documentation. 
• Hands-on experience with API testing and related tools. 
• Experience with at least one automation framework or tool, such as Playwright, Cypress, Selenium, Appium, REST Assured, Postman/Newman, Pytest, or similar. 
• Programming or scripting experience in one or more languages, such as JavaScript/TypeScript, Python, Java, or similar. 
• Understanding of CI/CD principles and experience working with tools such as GitHub Actions, GitLab CI, Jenkins, or similar would be a strong advantage. 
• Good tooling knowledge, for example Git, UNIX command-line tools, curl, browser developer tools, Charles Proxy, Wireshark, or similar. 
• Basic knowledge of computer science, system topology, networking infrastructure and protocols, and database management systems. 
• Strong analytical and problem-solving skills, with a focus on continuous process improvement at both product and company level. 
• Strong communication and collaboration skills. 
• Advanced English language skills. 
• Interest in using AI tools to improve testing activities, documentation, and QA efficiency. 

Nice to have: 

• Experience with IoT products, building automation, physical access control, or hardware-related testing. 
• Experience with security-related products or understanding of general security concepts. 
• Experience with AWS EC2 or other cloud infrastructure. 
• Degree in Computer Science, Engineering, or a related field. 
• German language skills. 

JarvisHeart is a rapidly expanding global IT & Tech company based in Cyprus, dedicated to its team, providing an inspiring dynamic work culture.Established in 2024, we are aimed to deliver services and solutions for businesses. We attract and retain the best IT professionals, offering avenues for development and progress to provide exceptional solutions to clients around the globe. Join us and become a part of JarvisHeart’s success story.

🌟 Requirements

• 2+ years of experience in iGaming
• Hands-on experience managing bonuses, promotions, or campaigns
• Strong analytical mindset and confident data handling
• Confident user of Excel / Google Sheets
• Experience with event-based and seasonal promotions
• Experience collaborating with Retention teams
• English level: Intermediate or higher

🎯 Responsibilities

• Develop and implement bonus and promotional strategies for Casino
• Launch and optimize promotional campaigns, including:
  • Deposit bonuses
  • Free spins
  • Cashback offers
  • Tournaments, lotteries, leaderboards
• Plan and launch tournaments, jackpots, and gamification mechanics
• Analyze the performance of bonuses and promotions. Candidate must be able to interpret campaign results and draw insights
• Collaborate with CRM, Affiliates, Product, and Support teams
• Perform basic fraud and bonus abuse monitoring

What we offer:

• 17 vacation days (Enjoy vacation policy to recharge and explore. We believe work-life balance is key to personal and professional well-being.)
• 15 paid sick days (Your health matters. We offer paid sick leave to ensure you can recover without financial stress)
• Insurance after the probation period (Your well-being is our priority. After completing the probationary period, you’ll gain access to our comprehensive insurance plan to support your health and peace of mind.)
• Public holidays off (Take time to celebrate and enjoy national holidays with friends and family without worrying about work.)
• Work equipment provided (Start your journey with the best tools for success! We provide all the necessary equipment to help you work efficiently and comfortably.)

Applause is a profitable, well-capitalized operator of consumer subscription apps across privacy, security, health, productivity, and accessibility. The model is simple: acquire high-retention, category-leading apps and scale them. 

The apps already have top 1% retention, strong brands, and high organic traffic, so paid growth compounds on proven products instead of propping up weak ones. There is real budget behind growth that works.

The role. A top-of-funnel paid acquisition role that owns user acquisition across the whole portfolio end-to-end — running it, not supervising it. You start by personally running growth for at least three apps, then scale to five to seven as you build repeatable systems and, over time, a team beneath you. Paid and organic are treated as one connected acquisition system. This is a builder-operator role: you set up the growth function from scratch — campaign infrastructure, measurement, reporting, and playbooks.

Who we look for

• Has personally deployed meaningful paid spend at a consumer subscription company (~$10M+/year, or smaller budgets run with real rigor) with direct ownership of the numbers.
• Hands-on with the modern stack: an MMP (AppsFlyer, Adjust, or Singular), Superwall, Amplitude/Mixpanel, Customer.io 
• SKAN-fluent; builds and pressure-tests LTV and payback models 
• Has operated across 3–7 apps or product lines at once 
• Player-coach who executes today with a clear path to hire and lead a small team; ideally arrives with 2–3 trusted specialists (e.g. a UGC/creative producer and an analyst).

What you'd own

• Plan, launch, and optimize paid UA hands-on across Apple Search Ads, Google (UAC + search), Meta, TikTok, and paid web — budgets, bids, audiences, and creative testing against payback and CAC per app.
• Drive organic in parallel: ASO, store-listing conversion, web-to-app.
• Build the measurement backbone — stand up the MMP, configure SKAN and postbacks, run incrementality tests, reconcile web-vs-app attribution.
• Own the experiment roadmap independently: bring your own channel and creative ideas, size them by expected payback, run them without waiting for a task list.
• Manage secondary paywall/funnel work and coordinate lifecycle (email/push) with the analytics and lifecycle hires.

Comp. up to $150K (+performance bonuses) tied to portfolio payback and growth, with equity options after the first year