Jobs at Djinni

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

About the client:
Our client's mission is to reduce the time and money enterprises spend on state-of-the-art technology by 99%. It is the core constraint that drives the product philosophy. It forces the company to reject incremental improvements and pursue fundamental breakthroughs. These principles are the operating system for how the company thinks, builds, and ships. They are how the company turns radical ambition into reality.

About the role:
We are looking for a Full Stack AI Engineer who will join the team. You'll be an architect of the revolution against enterprise tech waste. You'll build the core platform and intelligent agents that power the company's mission — not optimizing existing workflows, but eliminating them entirely.

Requirements:
- 5+ years of industry experience in product-centric full-stack engineering roles;
- Very strong software engineering background with deep expertise in Python/Typescript.
- Hands-on LLM product patterns (prompting, tool use, routing, evals, regression testing);
Experience of working with Agents & LLMs:
- LangGraph/LangChain (know its limitations & trade-offs);
- Multi-provider routing, prompt tooling, trace/eval discipline (LangSmith);

Experience of working with Knowledge & Search Technologies:
- Vector — pgvector on PostgreSQL (semantic);
- Graph traversal — Cypher on Neo4j (relationships & enterprise context graph);
- Keyword/BM25 — lexical precision;
- Cross-Encoder (BGE Reranker) + RRF (blend lists robustly);
Deep knowledge of working with Data & Databases:
- PostgreSQL (Cloud SQL) — primary OLTP;
- SQLAlchemy and BigQuery — analytics/outcomes & cost/waste telemetry;
- Redis (Memorystore) — caching + lightweight queue/broker;
- GCS — object storage (files, audio, artifacts);

Responsibilities:
Design & Build Autonomous Agents:
- Tackle the end-to-end challenge of creating agents that solve open-ended enterprise problems.
- Wrangling high-volume enterprise data, building robust evaluation frameworks.
- Mastering the interplay between LLM prompting, fine-tuning, and scalable system architecture.
- Lead Customer Conversations & Translate to Product: Work directly with customer executives to translate their most critical objectives into breakthrough product features.
- Build the "New": Own the most audacious hypotheses, like fully autonomous optimization agents that replace entire consulting engagements and obsolete the need for army-style deployments.
- Master Deep Context: Build systems that understand enterprise architecture patterns better than most architects, automatically discovering waste and optimization opportunities.
- Take single-threaded ownership of core AI product areas, with end-to-end responsibility for customer success and business outcomes.
- Double as a Forward Deployed Engineer: Work regularly onsite with customers, and actually work with the systems.
- Every customer engagement becomes R&D for the platform, turning individual pain points into generalizable breakthroughs that serve the entire customer base

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

About the client:
Our client's mission is to reduce the time and money enterprises spend on state-of-the-art technology by 99%. It is the core constraint that drives the product philosophy. It forces the company to reject incremental improvements and pursue fundamental breakthroughs. These principles are the operating system for how the company thinks, builds, and ships. They are how the company turns radical ambition into reality.

About the role:
We are looking for a Full Stack AI Engineer who will join the team. You'll be an architect of the revolution against enterprise tech waste. You'll build the core platform and intelligent agents that power the company's mission — not optimizing existing workflows, but eliminating them entirely.

Requirements:
- 5+ years of industry experience in product-centric full-stack engineering roles;
- Very strong software engineering background with deep expertise in Python/Typescript.
- Hands-on LLM product patterns (prompting, tool use, routing, evals, regression testing);
Experience of working with Agents & LLMs:
- LangGraph/LangChain (know its limitations & trade-offs);
- Multi-provider routing, prompt tooling, trace/eval discipline (LangSmith);

Experience of working with Knowledge & Search Technologies:
- Vector — pgvector on PostgreSQL (semantic);
- Graph traversal — Cypher on Neo4j (relationships & enterprise context graph);
- Keyword/BM25 — lexical precision;
- Cross-Encoder (BGE Reranker) + RRF (blend lists robustly);
Deep knowledge of working with Data & Databases:
- PostgreSQL (Cloud SQL) — primary OLTP;
- SQLAlchemy and BigQuery — analytics/outcomes & cost/waste telemetry;
- Redis (Memorystore) — caching + lightweight queue/broker;
- GCS — object storage (files, audio, artifacts);

Responsibilities:
Design & Build Autonomous Agents:
- Tackle the end-to-end challenge of creating agents that solve open-ended enterprise problems.
- Wrangling high-volume enterprise data, building robust evaluation frameworks.
- Mastering the interplay between LLM prompting, fine-tuning, and scalable system architecture.
- Lead Customer Conversations & Translate to Product: Work directly with customer executives to translate their most critical objectives into breakthrough product features.
- Build the "New": Own the most audacious hypotheses, like fully autonomous optimization agents that replace entire consulting engagements and obsolete the need for army-style deployments.
- Master Deep Context: Build systems that understand enterprise architecture patterns better than most architects, automatically discovering waste and optimization opportunities.
- Take single-threaded ownership of core AI product areas, with end-to-end responsibility for customer success and business outcomes.
- Double as a Forward Deployed Engineer: Work regularly onsite with customers, and actually work with the systems.
- Every customer engagement becomes R&D for the platform, turning individual pain points into generalizable breakthroughs that serve the entire customer base

Who We Are:

AIR Media-Tech is a global IT company shaping the future of the creator economy. For over 15 years, we have been empowering digital creators worldwide by providing over 30 innovative tools and services to grow, monetize, and protect their content.

Our Mission:

To help creators thrive by offering tailored solutions, strategic insights, and unmatched support. We identify growth opportunities, expand market reach, and ensure creators succeed at every step of their journey.

We are looking for a specialist who will:

• Develop and implement cold email strategies for various audience segments (creators, brands, agencies).
• Create personalized email campaigns based on the pain points and motivations of the target audience.
• Build and segment email databases (including via LinkedIn, YouTube, and CRM data).
• Conduct A/B testing for subject lines, content, CTAs, and sending times.
• Monitor key metrics (OR, CR, CTR, reply rate, conversion rate, spam monitoring, IP/Domain Health) and optimize campaigns accordingly.
• Ensure high deliverability and compliance with GDPR/CAN-SPAM regulations.
• Coordinate with sales, marketing, and CRM teams to align campaign goals.

What are we looking for?

• At least 2 years of experience launching cold email campaigns (B2B or B2C).
• Proficiency with automation tools (e.g., Reply, Lemlist, Instantly, Woodpecker, Apollo).
• Understanding of deliverability principles, SPF/DKIM, and domain warm-up processes.
• Ability to write compelling, concise, and personalized messages.
• Experience working with CRM systems (HubSpot is a plus).
• Strong analytical thinking and the ability to make data-driven decisions.
• English proficiency at B1+ level.

Would be a plus:

• Experience in digital media, influencer marketing, FinTech, or SaaS industries.
• Basic knowledge of HTML/CSS.
• Understanding of the specifics of platforms like YouTube, TikTok, and others.

The Benefits: 

• High-quality health insurance.
• Remote work and flexible schedule with work-life balance.
• Corporate events for you and your family.
• Online and offline team building for your team. 
• Vacation leave of 18 work days.
• Paid sick leave.
• Corporate library, lectures, and webinars on various topics. 
• Opportunity to participate in volunteer and charitable projects.
• Gifts for birthdays and special occasions (weddings, Christmas, etc.)

Do you want to be involved in outstanding projects? Send us your resume.

We will contact you soon if we feel you could be a good fit!
 

At SPD Technology, we bring together a team of like-minded people who are driven by the desire to bring value through their work, united in their commitment to high performance and delivering custom, cutting-edge tech solutions that drive clients’ growth. We empower our people with a culture of excellence and enable them with the opportunity to uphold their accountability to contribute on each level. We value humanity and collaboration, encourage professional and personal growth, and foster a supportive and flexible work environment where everyone’s contribution is welcomed.

We are looking for a Senior ML & AI Engineer to join us as part of our team.

About the role

PitchBook’s Machine Learning Engineer is responsible for using machine learning, statistical modeling, and natural language processing (NLP) to collect a high volume of data for the PitchBook Platform and surface insights for the capital markets. This role will also serve as a resource and mentor for junior members of the team. A strong motivation to succeed is critical, and everyone has the opportunity to shape the long-term direction of our team.

About the project

PitchBook — a platform for investment professionals. Our software provides access to data and the analytical tools to get answers fast and discover promising opportunities. Uncovers actionable insights and trends hidden within the financial data of more than three million companies. Users all over the world include large corporations, start-ups, venture capital and private equity firms, investment banks, and many others. Features of PitchBook: Advanced search / Discovery & insights / Company profiles / Workflow & efficiency / Financials, and many more.

Team

Engineering Manager, 6 ML & AI Engineers

Work Environment

The role offers a flexible work schedule, allowing you to adapt your working hours with the requirement to attend all team meetings. The team follows a Scrum-based Agile methodology.

As a qualified expert, You will

• Work with GenAI & LLMs: Design, develop, and fine-tune generative AI models using transformer architectures. Implement advanced techniques to create practical solutions for real-world challenges.
• Use Modern Toolkits: Leverage frameworks like LangChain, LangGraph, and LangSmith to build automated pipelines and intelligent agents. Integrate these tools with vector databases for efficient similarity search and real-time analysis.
• Extract Data Insights: Process and analyze large volumes of unstructured data using embeddings and statistical modeling to identify meaningful insights.
• Build Scalable Systems: Collaborate with cross-functional teams to create production-grade ML systems that handle real-time, high-volume data processing.
• Mentor & Lead: Act as a mentor for junior team members and stay updated on trends in Agentic AI, transformer models, and generative systems.
• Collaborate & Communicate: Work with Product and Engineering teams to improve data management and support innovation. Present complex analyses clearly and effectively.
• Tech Stack & Focus Areas:
• Work with generative AI and transformer models, integrating frameworks like LangChain, LangGraph, and LangSmith to automate workflows and build intelligent systems.
• Use PyTorch, Scikit-Learn, and Spacy to build NLP pipelines. Implement vector databases for high-dimensional data embeddings and develop hybrid models to extract insights from diverse data sources.

We’re looking for you if you have:

• Educational Background: You hold a Bachelor’s or Master’s degree in Computer Science, Machine Learning, Statistics, or a related field.
• Experience: You bring 4+ years of production experience in the ML field, with a track record in developing transformer-based models and deploying them in scalable systems.

• Technical Expertise:

  - Proficient in Python and machine and deep learning frameworks like TensorFlow, PyTorch, ScikitLearn, Spacy, or others.

  - Experienced in natural language processing and modern LLM-based techniques.

  - Experience with full ML lifecycle, data preprocessing, training, evaluation stage, and monitoring techniques.

  - Skilled with SQL and data extraction methods.

• Innovative Thinker: You thrive on solving complex problems and are always exploring new trends in Generative AI.
• Collaborator & Communicator: You’re an excellent communicator able to collaborate and professionally express your thoughts to team members, other engineering teams, and stakeholders.
• Domain Knowledge: Exposure to financial services, investment banking, venture capital, or private equity is nice to have.

What’s in it for You

Reveal great tech solutions

Join the team of experts who create custom, cutting-edge tech solutions for world-renowned businesses, fueling client growth. Unleash your potential, tackle new challenges, and be part of a team that values your skills and contributions. Focus on long-term impact and building tailored, long-lasting partnerships with our clients.

Experience an agile and flexible working environment

Enjoy the freedom of fully remote work with a flexible working schedule. Empower yourself with a stable workload and a stable income, supported by provided laptops and licensed software. We focus on lasting cooperation and unite result-oriented individuals who stand on a high-performance approach to work.

Embrace the opportunity for personal and professional growth

Benefit from performance and merit reviews, elevate your skills with personal development plans, and individual learning through the corporate library, public speaking support, and more.

Be among like-minded people

Work with a team of one mind who cares about what they do and how they do. Collaborate with top-notch experts who are always ready to help and support you through any challenges. Join company-wide tech and cultural events, and contribute to meaningful CSR initiatives that resonate with your values. Feel supported by your HR, and take advantage of our referral bonus program.

Interview steps

• Pre-Screening with the recruiter
• Technical interview (up to 90 min)
• System Design interview (up to 45 min)
• Behavioral Round with Product Manager (45 min)
• Final interview with Engineering Manager (60 min).

About the company

At Balancify, we’re redefining finance to be transparent, inclusive, and built for the next generation. Banking shouldn’t feel like a black box — we make it clear, accessible, and trustworthy.

Our real strength is the team: not just roles, but builders creating something meaningful together.

What you will do:

 • Apply cloud security best practices: IAM, encryption, compliance

 • Diagnose and resolve complex infrastructure issues

 • Develop and maintain IaC with Terraform, CloudFormation, and scripts (Python, Bash, Go)

 • Drive end-to-end observability, define SLOs/error budgets, and maintain actionable dashboards

 • Manage secrets & keys (AWS KMS/Secrets Manager), automate rotation, and maintain audited access

 • Keep payment processing highly available & low-latency: capacity planning, autoscaling, load/performance testing

We’re looking for you if you:

 • Have 5+ years in DevSecOps/SRE/Cloud Engineering

 • Strong AWS knowledge (IAM, VPC, KMS, Secrets Manager)

 • Experience with IaC (Terraform/CloudFormation) and automation scripting

 • Proficient in observability tools (Prometheus, Grafana, ELK, OpenTelemetry)

 • Hands-on with CI/CD, Docker/Kubernetes, and security best practices

 • Analytical, proactive, and able to balance speed, security, and reliability

Bonus points for:

 • Experience in FinTech, high-load, or regulated environments

 • Knowledge of PCI DSS, SOC2, or other compliance frameworks

 • Performance/security testing expertise

Why join us?

 • Build and secure the backbone of a next-generation fintech product

 • Be part of a team that values ownership, collaboration, and innovation

 • Directly influence system resilience, security, and performance

 • Flexible, supportive, and growth-oriented environment

🚀 Ready to keep our systems secure, scalable, and blazing fast? Apply now and join Balancify!

24PLAY is a product company from Ukraine that has been developing and publishing mobile games since 2019. We are a team of professionals who have launched dozens of popular games and gained over 100 million satisfied players worldwide. Our games include Zombiepunk, Bliezkrieg Assault, Street Dude, and more.

We are currently looking for a Lead QA to share our core company values:

• Creativity: We actively encourage and embrace each other’s ideas, transforming them into reality through collaboration and innovative thinking.
• Integrity: We commit to providing honest feedback and realistically assessing situations, fostering a culture of trust and transparency.
• Productivity: We strive to optimize our workflows to achieve the best possible results in the shortest timeframe, ensuring efficiency and effectiveness in our operations.
• Uncompromising Quality: Our commitment to excellence drives us to prioritize the quality of our work above all else, ensuring that we consistently deliver outstanding results.
• Healthy Lifestyle: We advocate for a healthy lifestyle and stand against harmful habits, promoting well-being and balance within our team.

We are looking for a professional for the role that requires:

• Full-time job;
• Office-based in Kyiv.

Responsibilities:

• Lead and manage the QA team (task assignment, prioritization, progress control).
• Develop, implement, and optimize QA processes for mobile game testing.
• Collaborate closely with development, game design, and production teams to improve product quality.

• Plan QA activities for releases and updates.

   

Requirements:

• 2+ years of experience as QA Lead / Senior QA in game development, preferably with mobile games.
• Strong understanding of mobile app testing (Android & iOS).
• Proven experience in managing a QA team (5+ people).
• Knowledge of Unity project specifics and game development lifecycle.
• Ability to create clear documentation (test cases, test plans, checklists).
• Hands-on experience with bug-tracking systems (Jira, Trello, YouTrack).
• Strong analytical skills, attention to detail, and proactive attitude.

• English: intermediate or higher.

   

Nice to have:

• Experience with automated testing for mobile games.
• Understanding of free-to-play game mechanics and game design principles.

• Familiarity with crash reporting tools (Firebase, AppCenter, etc.).

   

We offer:

• Opportunity to directly impact the quality of games played by millions worldwide.
• Professional growth and career development in QA Management.
• A friendly team passionate about making great games.

Why join our team?

• Fully Legal: Official employment in full compliance with Ukrainian labor legislation, including paid vacation (24 days) and sick leave (unlimited).
• Professional Team: A high-performing group of skilled individuals committed to excellence.
• No Overtime: We prioritize a healthy work-life balance, with no overtime required.
• Stable Payments: No payment delays since the foundation of the company.
• Bonus System: A unique reward system designed to motivate employees by aligning their performance with the company’s financial goals.
• Professional Development: Access to mentorship programs and our internal library for continuous growth.
• Events: Enjoy board games, masterclasses, corporate events, sports activities, and free English classes.
• Comfortable Workspace: A modern office in Kyiv featuring a spacious lounge, fully-equipped kitchen, sports zone, cinema, and complimentary spa facilities for employees.
• 35-Hour Work Week: Reduced working hours as a benefit for experienced employees

We look forward to receiving your application!

The OVO Group’s mission is to drive progress towards net zero carbon living. We’re a collection of companies with a single vision: to power human progress with clean affordable energy for everyone. At OVO, we are on a mission to solve one of humanity's biggest challenges, the climate crisis. And we know it takes all of us to change the world. That's why we need diverse people from all gender identities, ethnicities, ages, sexual orientations, life experiences and backgrounds to join us.

Being an Engineer here at OVO means being at the forefront of building innovative solutions that drive the sustainable energy revolution. As a part of our talented team, you'll collaborate on cutting-edge initiatives, tackle complex challenges, and make a meaningful impact in creating a greener future. Join us and unleash your expertise to transform the energy industry and pave the way for a sustainable tomorrow.

Responsibilities:

• Development of new features and improvements
• Adopting and contributing to CI/CD pipeline and ways of working
• Delivering product value iteratively
• Ensuring best practices around observability and security
• Working closely with other developers to ensure knowledge sharing
• Designing and developing new platform functionality, from inception to deployment
• Building on top of and integrating the existing estate
• Helping to refine and deliver work items across our Agile delivery process
• Contributing to efficiencies and improvements in Ways of Working
• Designing, building, and maintaining efficient, reusable, and reliable code.
• Sharing new ideas, techniques and methodologies.

Requirements:

• A minimum of 5 years of software development experience writing full-stack TypeScript/NodeJS/React
• Experience writing automated tests
• CI/CD principles and pipelines
• Cloud engineering experience (GCP)
• Microservices /Serverless
• Infrastructure as code
• Event-driven architectures, RESTful interfaces and SQL databases
• Experience using TDD principles would be an advantage
• Experience in Data modelling/Database engineering would be a plus
• Experience with Kubernetes and Terraform would be a plus
• Upper-intermediate level of English, Advanced level of Ukrainian
• Experience working in an Agile development process
• Critical thinking and problem-solving skills

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

Delasport — Implementing Technological Solutions Here and Now

Delasport is an iGaming Software company providing Sports Betting & Online Casino software, and turnkey B2B solutions. Established in 2010, Delasport delivers a one-stop-shop solution of Sports Betting and Online Casino from a White-Label, with a full range of management services to a Plug&Play iFrame and a complete Turnkey. We are establishing an R&D centre in Kyiv, and are looking for top talents to join our team.

RESPONSIBILITIES

• Manage and maintain our cloud infrastructure on Google Cloud Platform (GCP) to ensure high availability, scalability, and security
• Design, build, and manage containerized environments using Kubernetes for deploying and orchestrating microservices
• Collaborate with software development teams to streamline the CI/CD pipeline and implement automated build, test, and deployment processes
• Develop and maintain infrastructure as code (IaC) using Terraform to automate the provisioning and configuration of cloud resources
• Implement and manage configuration management tools such as Ansible to ensure consistent and efficient deployment across environments
• Monitor system performance and identify potential bottlenecks, taking proactive measures to optimize and improve overall system reliability
• Troubleshoot and resolve issues related to infrastructure, applications, and deployments in a timely manner
• Participate in the on-call rotation with the DevOps team, responding to alerts and incidents outside of regular business hours
• Stay up-to-date with the latest industry trends and best practices related to DevOps, cloud computing, and containerization

REQUIREMENTS

• Bachelor’s degree in Computer Science, Engineering, or a related technical field.
• Resilient and flexible mindset, open to changing priorities and adapting to new challenges and technologies as the business evolves
• 3+ years of proven experience as a DevOps Engineer or similar role with hands-on experience in GCP or/ and AWS
• Strong knowledge of containerization technologies, particularly Kubernetes, and experience managing containerized environments
• Proficiency in infrastructure automation using Terraform for provisioning cloud resources
• Hands-on experience with configuration management tools, such as Ansible.
• Solid understanding of CI/CD concepts and experience implementing CI/CD pipelines.
• Familiarity with version control systems (e.g., Git) and their integration with CI/CD pipelines
• Knowledge of scripting languages (e.g., Bash, Python) for automation tasks.
• Experience with monitoring and logging tools to ensure the health and performance of systems
• Strong problem-solving skills and the ability to work effectively in a team-oriented, collaborative environment
• Excellent communication skills in English, both verbal and written

WHAT WE CAN OFFER YOU

• Modern office in Podil with an uninterruptible power supply and the Internet
• Personal time off (21 business days of paid vacation, paid days on special occasions, sick leaves, emergency days off)
• Public holidays
• Health insurance with the broker which is available from the first month of cooperation
• Life insurance with the broker which is available from the first month of cooperation
• Modern technical equipment
• English courses with native speakers
• Ukraine-based educational programs
• Sports activities reimbursement
• Corporate entertainments
• Happy hours on Fridays
• Gig contract support

Delasport — Implementing Technological Solutions Here and Now

Delasport is an iGaming Software company providing Sports Betting & Online Casino software, and turnkey B2B solutions. Established in 2010, Delasport delivers a one-stop-shop solution of Sports Betting and Online Casino from a White-Label, with a full range of management services to a Plug&Play iFrame and a complete Turnkey. We are establishing an R&D centre in Kyiv, and are looking for top talents to join our team.

RESPONSIBILITIES

• Participate in test automation framework development, configuration, and maintenance
• CI jobs/pipelines configuration
• Backend and Frontend tests development and maintenance
• Automated test results analysis
• Participate in feature team daily life

REQUIREMENTS

• At least 2+ years of automation experience in Java
• OOP knowledge
• Experience with Selenium WebDriver
• REST API knowledge
• CI jobs/pipelines configuration (Jenkins)
• Windows CMD knowledge
• Excellent knowledge of Git
• Basic experience with databases (SQL Server, MongoDB)
• Experience with Postman or any of the API testing tools
• Agile and Scrum understanding
• Good understanding of QA processes and SDLC
• Upper-intermediate English level

NICE TO HAVES

• Experience with JUnit and Spring Boot
• Integration testing experience
• Basic Linux shell knowledge
• Basic knowledge of Docker
• Experience with microservice architecture

WHAT WE CAN OFFER YOU

• Modern office in Podil with an uninterruptible power supply and the Internet
• Personal time off (21 business days of paid vacation, paid days on special occasions, sick leaves, emergency days off)
• Public holidays
• Health insurance with the broker, which is available from the first month of cooperation
• Life insurance with the broker, which is available from the first month of cooperation
• Modern technical equipment
• English courses with native speakers
• Ukraine-based educational programs
• Sports activities reimbursement
• Corporate entertainments
• Happy hours on Fridays
• Gig contract support

Delasport is an iGaming Software company providing Sports Betting & Online Casino software, and turnkey B2B solutions. Established in 2010, Delasport delivers a one-stop-shop solution of Sports Betting and Online Casino from a White-Label, with a full range of management services to a Plug&Play iFrame and a complete Turnkey. We are establishing an R&D centre in Kyiv, and are looking for top talents to join our team.

TECHNOLOGY STACK

Microservice architecture, Java 21, Spring Boot 3.4+, PostgreSQL, MongoDB, Kafka, Google Cloud Platform, Kubernetes

RESPONSIBILITIES

• Development of new business initiatives, an extension of existing ones
• Taking an active part in improvements and optimizations to the systems
• Resolve technical problems, critical thinking on the development approach
• Be part of a cross-functional team with end-to-end responsibility for the result

REQUIREMENTS

• 3+ years of commercial development experience using Java-related technologies
• 1+ years of working experience with API development
• Hands-on experience with microservice architecture
• Ambition to write high-quality code covered with unit tests
• Solid debugging and troubleshooting skills
• Proactive and result-oriented mindset
• Strong problem-solving skills
• At least Upper-Intermediate English level

WHAT WE CAN OFFER YOU

• Modern office in Podil with an uninterruptible power supply and the Internet
• Personal time off (21 business days of paid vacation, paid days on special occasions, sick leaves, emergency days off)
• Public holidays
• Health insurance with the broker which is available from the first month of cooperation
• Life insurance with the broker which is available from the first month of cooperation
• Modern technical equipment
• English courses with native speakers
• Ukraine-based educational programs
• Sports activities reimbursement
• Corporate entertainments
• Happy hours on Fridays
• Gig contract support

Ixilix is a technology-driven company that builds high-quality solutions and long-term partnerships. Our team is growing, and we are looking for an IT Security Engineer

Responsibilities

• Monitor and respond to security incidents using SIEM/IDS/IPS tools.
• Implement and manage vulnerability management processes and apply security patches.
• Collaborate with DevOps/Development teams to integrate security into CI/CD pipelines and cloud environments.
• Automate routine security tasks (e.g., scans, testing, asset inventory).
• Collaborate with external auditors to perform scanning, monitoring, control, and remediation of security issues.
• Develop and maintain security policies, procedures, and awareness training.

Required Skills

• Experience as a Cyber Security Engineer or a similar role.
• Experience with AWS cloud platforms.
• Knowledge in development and support of infrastructure as code (Terraform, Terragrunt).
• Experience with hardening frameworks and standards (CIS, NIST, AWS Security Best Practices, Kubernetes/EKS Hardening).
• Experience with DAST and SAST tools.
• Strong knowledge of container security (EKS, Docker), including EKS Hardening.
• Hands-on experience with common penetration testing tools (Nmap, Metasploit, Burp Suite, Aircrack-ng, SQLmap, etc.).
• Experience with SIEM, logging, and alerting systems (e.g., ELK/EFK Stack, Splunk, Datadog, Prometheus Alertmanager).
• Practical experience with OWASP — applying OWASP Top 10 in penetration testing and code reviews. 

Preferred Skills

• Experience participating in Bug Bounty programs — vulnerability discovery, validation, and reporting.
• Experience in conducting threat modeling for new and existing systems, identifying risks, and designing countermeasures.
• Experience in identifying and mitigating privilege escalation risks; access rights audits and secure IAM/sudo policy design.
• Experience with Zero Trust security principles (least privilege, continuous verification, microsegmentation).

What we offer

Rewards & Celebrations     

• Quarterly Bonus System
• Team Buildings Compensations
• Memorable Days Financial Benefit

Learning & Development    

• Annual fixed budget for personal learning 
• English Language Courses Compensation

Time Off & Leave    

• Paid Annual Leave (Vacation) - 24 working days
• Sick leave - unlimited number of days, fully covered

Wellbeing Support    

• Mental Health Support (Therapy Compensation)
• Holiday Helper Service

Workplace Tools & Assistance    

• Laptop provided by Company (after probation)

Work conditions

• Remote work from EU
• Flexible 8-hour workday, typically between 9:00 - 18:00 CET
• Five working days, Monday to Friday
• Public holidays observed according to Ukrainian legislation
• Business trips to Bratislava every 3-6 months (company provides compensation of expenses)

At Ixilix, we value transparency, trust, and ownership. We believe that great results come from people who care - about their work, their team, and the impact they create. 

Sounds like you? Let’s connect! We’re just one click away.

About company:
Appexoft is a Software Development Company that provides a full range of top-quality IT services. Our mission is to develop first-class applications and websites, helping our clients maximize their profits and turn their ideas into reality.

Requirements:
We are looking for a motivated QA Engineer to join our team.

Key responsibilities:

• Ensuring the quality of software as a member of the development team.
• Collaborating closely with developers to clarify backlog items.
• Troubleshooting issues across multiple environments and operating platforms.
• Making sure releases have the right level of test coverage (unit, functional, performance).
• Creating detailed and well-structured test plans and test cases.
• Monitoring and tracking debugging process results.

Mandatory skill set:

• Intermediate English level or higher.
• Excellent communication skills (both written and spoken) with technical and non-technical stakeholders.
• Strong knowledge of QA theory and solid hands-on testing experience.

We offer:

• Interesting and challenging projects.
• Vast opportunities for professional development.
• Competitive salary.
• Comfortable working environment.
• Friendly and supportive team of professionals.
• Delicious coffee, tea, and biscuits for a good mood.

At Enjoy Gaming, we’re a passionate team of industry experts, backed by market specialists and foreign investment. We’re thrilled to create live dealer shows and slots. We’re making our games to provide an even better gaming experience.
Our core values of ownership, communication, and honesty drive everything we do.

Join us and be part of our innovative journey in the gaming world!

We are currently seeking a skilled and experienced QA Manual Tester to join our quality assurance team. In this role, you will immerse yourself in our development processes and take responsibility for manual testing of our games, identifying and documenting defects, and validating fixes. You will collaborate closely with developers and product teams to understand requirements and provide feedback to enhance product functionality and user experience. Your attention to detail and analytical mindset will be crucial in ensuring that our products meet both customer expectations and industry standards.

About You:

— Strong knowledge of QA theory and Agile methodologies

— Skilled in manual, functional, and regression testing

— Practical experience in writing test documentation

— Understanding of client/server architecture testing

— Proficient in API testing using Postman and comfortable working with REST APIs

— Must have experience with databases and backend testing

— Experience working with logging and monitoring tools such as Grafana

— Hands-on experience with web technologies (HTML5/CSS)

— Proficient in using Confluence, JIRA, and TestRail

— Capable of managing products from testing through to release

— Able to follow established workflows and procedures

— Analytical mindset with strong attention to detail and the ability to see the bigger picture

— A team player with strong communication skills across departments to ensure product quality

— Ability to work effectively in a challenging environment

— Results-oriented mindset

— Focused on long-term cooperation

Will be a plus:

— Experience in iGaming development

— Experience with testing WebSocket functionality

— Basic knowledge of JavaScript, TypeScript, Cypress, and MySQL is a plus

What goals will you have?

— Manual testing of platform components (platform backend, back office, and other services)

— Requirements analysis

— Test planning and effort estimation

— Writing, executing, and maintaining test cases and checklists

— Bug and defect handling: analyzing deviations between expected and actual behavior, and reporting bugs

— Root cause analysis

— Ensuring requirements are met

— Participation in the release process

— Running automated tests, analyzing results, and providing recommendations for test updates

What you get in return:
— Competitive Salary: A fixed salary in EUR with annual performance reviews to recognize your growth
— Remote Work Option: Enjoy the flexibility and comfort of working remotely
— Comprehensive Benefits: Includes medical insurance, access to a psychologist, and participation in our English-speaking club
— Paid Time Off: 20 vacation days + 10 additional leave, plus national holidays
— Paid Sick Leave: Up to 10 working days per year
— Professional Development Support: We reimburse courses, training, and certifications to help you grow in your career
— Self-Development Perks: Reimbursement available for language classes, sports activities, massages, or sessions with a life coach

Please note that feedback on your application will be provided within two weeks if a positive decision is made regarding your candidacy.

I give my consent, following the Law on the Protection of Personal Data dated June 1, 2010, No. 2297, effective from January 1, 2011, for the processing of information classified as personal data.

We are looking for a Senior Node.js Developer (Blockchain Project).

We are building a next-generation ecosystem with a blockchain as its foundation, a non-custodial wallet, and a stablecoin protocol. After a successful demo, the project is now preparing the core components (blockchain + stablecoin) for launch. In parallel, development has started on additional secured projects, including:

• A document management system,
• A country-specific solution,
• An e-invoicing platform,
• And several other ecosystem modules ready to begin.

Tech Stack

• Node.js / TypeScript, NestJS
• PostgreSQL, Redis / Valkey
• L2 blockchain (interaction with other networks)
• Docker, Kubernetes (bare-metal & cloud infrastructure)

Responsibilities

• Write efficient, maintainable code;
• Design and implement independent, self-sufficient components efficiently;
• Participate in architectural discussions and technical decision-making;
• Identify potential technical risks and develop mitigation strategies;
• Ensure effective knowledge sharing and maintenance within the team;
• Foster a collaborative and innovative development environment;
• Perform cross code reviews with team members;
• Properly maintain documentation.

Requirements

• 4+ years of experience with server-side JS/TS;
• Solid understanding of TypeScript and JavaScript fundamentals and internals;
• Experience with Express, NestJS, or similar frameworks;
• Strong understanding of asynchronous programming, event-driven architecture, and non-blocking I/O;
• Understanding of different types of scaling and microservice architectures in various implementations;
• Hands-on experience with Web3.js or Ethers.js for interacting with Ethereum or other EVM-compatible networks;
• Understanding of smart contracts;
• Familiarity with popular blockchains such as Ethereum, Binance Smart Chain, or Layer 2 solutions;
• Expertise in data structures, algorithms, and software design patterns;
• Solid understanding of software architectural patterns;
• Experience with relational databases (especially PostgreSQL);
• Deep experience with SQL (including schema/query design and optimization);
• Experience with ORMs;
• Familiarity with Docker, containerization, and orchestration tools;
• Strong analytical and problem-solving skills;
• Proficiency in writing unit, integration, and end-to-end tests;
• Conversational English.

Will be a plus

• Familiarity with DevOps practices and Infrastructure-as-Code (IaC) tools;
• Understanding of consensus algorithms, cryptographic principles, and decentralized applications (dApps);
• Familiarity with Matter Labs’ zk stack;
• Experience in the FinTech domain;
• Understanding of different rollup technologies;
• Openness to technology stack changes and adaptability.

Join our team to work on modern web applications and services, collaborate with project managers and clients, and contribute to both frontend and backend development.

Please note: This position requires availability to work from 9:00 AM – 5:00 PM EST (16:00 – 00:00 Kyiv Time).

Responsibilities:

• Develop and maintain web applications and services using ASP.NET Core, NestJS (Node.js), and Angular/React.
• Write clean, readable, and maintainable code following best practices.
• Design and implement databases and APIs, focusing on microservices architecture.
• Support and enhance existing features while building new functionality.
• Collaborate proactively with teammates to ensure high-quality delivery.
• Manage the technical debt backlog when required.
• Work closely with project managers and clients to understand requirements and improve product development.

Requirements:

• Strong proficiency in C#, ASP.NET, TypeScript.
• Solid experience with NestJS (Node.js).
• Good knowledge of React and Angular.
• 6+ months of experience working with Cursor.AI, Windsor.AI, Cline, Roo, or similar AI-assisted coding tools (commercial or personal projects).
• Strong analytical skills and ability to effectively utilize AI tools for increased productivity.
• At least 2 years of experience in Web UI and API development.
• Strong knowledge of REST API implementation.
• Experience integrating with third-party APIs and services.
• Good understanding of SQL and MySQL.
• Experience working with Git for version control.
• Familiarity with Azure or AWS.
• Understanding of DevOps practices is a plus.

What We Offer

• Competitive salary with regular reviews.
• Support for individual entrepreneurs with accounting assistance.
• Fully remote work.
• A clear path for professional development and growth.
• A friendly team environment and engaging team-building activities (online and offline).