QA Automation Engineer - Sports

🏢 Summary: Senior backend engineering role focused on designing and evolving scalable real-time sportsbook distributed systems used by millions of users. The position combines hands-on development with technical leadership across architecture, performance, reliability, observability and event-driven platform evolution. Engineers will mentor teams, improve operational excellence and drive long-term scalability in a high-volume environment. 🗂️ Requirements: Experience designing and operating distributed systems at scale, Strong Java expertise, Knowledge of JVM internals, Concurrency and multithreading experience, Experience with Reactive Programming, Experience with Spring Boot or Vert.x, Experience with Apache Kafka, Knowledge of event-driven architectures, Experience with Redis, Experience with SQL databases, Experience with NoSQL databases, Experience with observability and monitoring platforms, Production incident debugging experience, Strong system design skills, Architectural decision-making skills, Ability to communicate with technical stakeholders 📃 Skills: Java, JVM, Spring, Vert.x, Kafka, Redis, SQL, PostgreSQL, MariaDB, MongoDB, Datadog, Grafana, Kibana, Reactive, CI/CD, Kubernetes, AWS, GCP, OpenSearch, Elasticsearch, NATS 🏢 Description: ABOUT THE ROLE LeoVegas Group is building a world-class Sportsbook platform. Within the Sports domain, we work in a high-volume, real-time environment where speed, correctness, scalability and reliability are critical, building the services that transform incoming sports, trading and pricing data into experiences used by millions of customers. We are looking for a highly experienced Staff Backend Engineer to help lead the design, development and evolution of these distributed systems. You will provide technical leadership across architecture, engineering practices and platform evolution while remaining hands-on, helping teams make better technical decisions, raise engineering standards, simplify complex systems and balance business needs with long-term platform health. This role suits someone who enjoys understanding the technical and business context behind problems rather than implementing solutions mechanically. We value engineers who are curious and proactive, comfortable with ambiguity, and who lead through collaboration and ownership rather than authority. WHAT YOU'LL DO Lead architecture and design discussions for scalable, resilient and maintainable distributed systems, evaluating options through spikes, experiments and proofs of concept. Drive simplification of complex systems while holding a high bar for performance, reliability and code quality. Identify scalability, resiliency and operational risks before they reach production, and lead root cause analysis when incidents occur. Improve observability, monitoring and operational readiness, and drive down technical debt across the platform. Promote best practices around event-driven and reactive architectures, performance optimisation, testing, automation and CI/CD. Mentor engineers through design reviews, code reviews, pair programming and technical guidance. Partner with Product, Engineering Managers and Architects to translate business problems into practical solutions, and help shape and break down technical initiatives. Contribute to a culture of ownership, collaboration, continuous improvement and engineering excellence. WHAT WE'RE LOOKING FOR ESSENTIAL SKILLS Proven experience designing, building and operating distributed systems at scale, owning complex backend systems end-to-end in production. Strong backend expertise in Java (preferably 21+), with a solid understanding of JVM internals, concurrency and multithreading. Hands-on experience with Reactive Programming and non-blocking systems using Spring Boot and/or Vert.x. Hands-on experience with Apache Kafka and event-driven architectures; familiarity with streaming and messaging technologies such as Redis or NATS. Experience with Redis for caching and low-latency data access, and with SQL and NoSQL databases (e.g. PostgreSQL, MariaDB, MongoDB). Experience with observability and monitoring platforms such as Datadog, Grafana or Kibana, and with debugging complex production incidents. Strong system design and architectural decision-making, balancing latency, throughput, consistency, operational complexity and maintainability. Ability to influence technical decisions and communicate effectively with engineers, architects, product managers and other stakeholders. NICE TO HAVE Experience with Kubernetes, AWS and/or GCP, and cloud-native architecture patterns. Experience with OpenSearch and/or Elasticsearch for search, analytics and operational troubleshooting. Experience building internal platforms, shared frameworks or developer productivity tooling, with a strong SRE mindset. Experience within sports betting, gaming or other real-time, data-intensive domains. WHAT SUCCESS LOOKS LIKE Teams rely on you for technical direction and practical problem-solving, and move faster thanks to the foundations, tooling, standards and guidance you help establish. The platform becomes more reliable, scalable and easier to operate over time, with fewer production incidents. Technical decisions are made with greater clarity, consistency and long-term sustainability. Cross-team dependencies are better coordinated, reducing friction and improving delivery. Engineers grow technically through your mentorship, feedback and leadership. WHO WE ARE At the core of LeoVegas Group is Team Leo. Our culture is our foundation and is what enables us to innovate, build, and lead as we trailblaze our way through the igaming industry. We’re a team of over 2000 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 21 offices worldwide. WHAT WE OFFER Competitive salary aligned with your experience, expertise, and impact A collaborative, inclusive, and fast-paced engineering environment where ideas are welcomed, ownership is encouraged, and continuous learning is valued Hybrid work policy 4 weeks of Workation (T&C apply) Benefits package - 800 PLN net (B2B)/gross (UOP) monthly with access to the cafeteria platform (private medical care, insurances, sports card) Training budget ICAS's assistance program can provide help and guidance during challenging moments. Our office provides complimentary snacks and drinks; on Mondays, we serve complimentary breakfast. Team and office social events throughout the year Free parking for bicycles and motorcycles Free gym in the building Equipment: MacBook Pro + smartphone (iPhone 16/17 or Samsung Galaxy S25) JOIN US! In our pride, we empower our teammates to find their roar and run with their wildest ideas. We don’t wait for things to happen; we pounce and make it happen! Would you be a good fit for the Leo Pride - give us a roar! As our company's working language is English, we’d like to see your CV in English, please

🏢 Summary: Senior software engineer role focused on enhancing customer onboarding and responsible gaming features for a multi-brand gaming platform built on microservices. The position involves developing backend solutions, improving platform architecture, and collaborating with cross-functional teams in a data-driven CI/CD environment. Candidates will work primarily with Java and Spring Boot while contributing to testing, monitoring, and scalable platform development. 🗂️ Requirements: 5+ years of experience with Java and Spring Boot or other object-oriented languages, Experience with SQL and relational databases, Knowledge of microservice architectures, Ability to write unit, integration, and end-to-end tests, Experience collaborating in agile development environments, English proficiency 📃 Skills: Java, Spring, SpringBoot, SQL, Kotlin, Git, Kafka, Jenkins, GCP, BigQuery, Postman, Microservices, CI/CD, Kanban, Testing, Telemetry, Monitoring, C#, C++, Python, PHP 🏢 Description: ABOUT THE ROLE Are you an experienced software engineer looking for a meaningful role in a dynamic environment? Join our Markets Platform Team at LeoVegas Group, where you will play a crucial role in enhancing our global customer onboarding process and developing responsible gaming features. Your work will ensure a seamless, secure, and enjoyable experience for our customers across all our brands. In this position, you will focus on refining the onboarding journey and promoting responsible gaming. Our mission is to create a safe gaming environment where players can set healthy limits on their gambling habits. We leverage data-driven insights and a robust CI/CD process, following the Kanban methodology to deliver high-quality solutions. You will work alongside expert back-end developers specialising in Java and Kotlin, as well as dedicated Quality Assurance Engineers. YOU WILL BE RESPONSIBLE FOR: Developing a multi-brand gaming platform called Rhino, built on 230+ microservices. Driving continuous improvement in the player onboarding process and responsible gaming solutions through innovative solutions. Writing extensive tests (units, e2e, integration) and updating documentation. Participating in architectural discussions and suggesting ideas for technical improvements. Collaborate with Product Managers and other stakeholders to deliver innovative solutions that enhance customer experience and promote safe gaming practices. Working closely with Backend Engineers, QA Engineers and TA Engineers. OUR SUCCESSFUL CANDIDATE WILL HAVE THE FOLLOWING: ESSENTIAL SKILLS Min. 5 years of experience in using Java + Spring Boot framework, or similar experience in Object Oriented Languages (C#, C++, Python, PHP) and willing to learn Java You have experience with SQL and relational databases You are familiar with microservice architectures NICE TO HAVES Experience with Kotlin, Git, Kafka, Jenkins. Familiarity with Google Cloud Platform and BigQuery. Strong understanding of API testing methodologies and hands-on experience with tools like Postman. Knowledge of Automated Testing. Experience with telemetry and monitoring. WHO WE ARE At the core of LeoVegas Group is Team Leo. Our culture is our foundation and is what enables us to innovate, build, and lead as we trailblaze our way through the igaming industry. We’re a team of over 1400 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 11 offices worldwide. BENEFITS Hybrid work policy 4 weeks of Workation  (T&C apply) Benefits package - 800 PLN net (B2B)/gross (UOP) monthly with access to the cafeteria platform (private medical care, insurances, sports card) Training budget ICAS assistance program that can provide help and guidance during challenging moments. Our office provides complimentary snacks and drinks; on Mondays, we serve complimentary breakfast. Team and office social events throughout the year Free parking for bicycles and motorcycles Free gym in the building Equipment: MacBook Pro + smartphone (iPhone 16/17 or Samsung Galaxy S25) JOIN US! In our pride, we empower our teammates to find their roar and run with their wildest ideas. We don’t wait for things to happen; we pounce and make it happen! Would you be a good fit for the Leo Pride - give us a roar! As our company working language is English, we’d like to see your CV in English, please

🏢 Summary: Software Engineer role focused on enhancing customer onboarding and responsible gaming features for a multi-brand gaming platform built on microservices. The position involves developing backend solutions, improving platform architecture, writing automated tests, and collaborating with cross-functional teams in an agile environment. Candidates will work with Java, Spring Boot, and cloud-based technologies to deliver secure and scalable solutions. 🗂️ Requirements: 3+ years of experience with Java and Spring Boot or other object-oriented languages, Experience with SQL and relational databases, Knowledge of microservice architectures, Ability to write unit, integration, and end-to-end tests, Experience collaborating in agile development environments, English proficiency for professional communication 📃 Skills: Java, Spring, SpringBoot, SQL, Microservices, Kotlin, Git, Kafka, Jenkins, GCP, BigQuery, Postman, Testing, Telemetry, Monitoring, Python, PHP, C#, C++ 🏢 Description: ABOUT THE ROLE Are you an experienced software engineer looking for a meaningful role in a dynamic environment? Join our Markets Platform Team at LeoVegas Group, where you will play a crucial role in enhancing our global customer onboarding process and developing responsible gaming features. Your work will ensure a seamless, secure, and enjoyable experience for our customers across all our brands. In this position, you will focus on refining the onboarding journey and promoting responsible gaming. Our mission is to create a safe gaming environment where players can set healthy limits on their gambling habits. We leverage data-driven insights and a robust CI/CD process, following the Kanban methodology to deliver high-quality solutions. You will work alongside expert back-end developers specialising in Java and Kotlin, as well as dedicated Quality Assurance Engineers. YOU WILL BE RESPONSIBLE FOR: Developing a multi-brand gaming platform called Rhino, built on 230+ microservices. Driving continuous improvement in the player onboarding process and responsible gaming solutions through innovative solutions. Writing extensive tests (units, e2e, integration) and updating documentation. Participating in architectural discussions and suggesting ideas for technical improvements. Collaborate with Product Managers and other stakeholders to deliver innovative solutions that enhance customer experience and promote safe gaming practices. Working closely with Backend Engineers, QA Engineers and TA Engineers. OUR SUCCESSFUL CANDIDATE WILL HAVE THE FOLLOWING: ESSENTIAL SKILLS Min. 3 years of experience in using Java + Spring Boot framework, or similar experience in Object Oriented Languages (C#, C++, Python, PHP) and willing to learn Java You have experience with SQL and relational databases You are familiar with microservice architectures NICE TO HAVES Experience with Kotlin, Git, Kafka, Jenkins. Familiarity with Google Cloud Platform and BigQuery. Strong understanding of API testing methodologies and hands-on experience with tools like Postman. Knowledge of Automated Testing. Experience with telemetry and monitoring. WHO WE ARE At the core of LeoVegas Group is Team Leo. Our culture is our foundation and is what enables us to innovate, build, and lead as we trailblaze our way through the igaming industry. We’re a team of over 1400 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 11 offices worldwide. BENEFITS Hybrid work policy 4 weeks of Workation  (T&C apply) Benefits package - 800 PLN net (B2B)/gross (UOP) monthly with access to the cafeteria platform (private medical care, insurances, sports card) Training budget ICAS assistance program that can provide help and guidance during challenging moments. Our office provides complimentary snacks and drinks; on Mondays, we serve complimentary breakfast. Team and office social events throughout the year Free parking for bicycles and motorcycles Free gym in the building Equipment: MacBook Pro + smartphone (iPhone 16/17 or Samsung Galaxy S25) JOIN US! In our pride, we empower our teammates to find their roar and run with their wildest ideas. We don’t wait for things to happen; we pounce and make it happen! Would you be a good fit for the Leo Pride - give us a roar! As our company working language is English, we’d like to see your CV in English, please

🏢 Summary: Senior QA Engineer role focused on end-to-end quality ownership of payment-critical features such as deposits, withdrawals, and compliance flows. The position involves hands-on automation, API/contract/E2E testing, and close collaboration with backend, frontend, and mobile engineers in a CI/CD-driven Agile environment. The role emphasizes improving test automation, reliability, and non-functional quality across distributed payment systems. 🗂️ Requirements: Proven experience testing payment systems or regulated financial platforms, Strong automation skills in API, contract, and E2E testing, Proficiency in TypeScript, Java or Kotlin, Experience with REST APIs and backend testing, Understanding of microservices and event-driven architectures, Experience working with Kafka, Practical experience improving CI/CD pipelines, Experience with MySQL, Ability to analyze distributed system failures, Fluent English (B2+) 📃 Skills: TypeScript, Java, Kotlin, REST, Kafka, MySQL, CI/CD, Microservices, API, E2E, Cucumber, Gherkin, TestRail, Xray, Zephyr 🏢 Description: ABOUT THE ROLE: Join the Payments team at LeoVegas Group as a Senior QA Engineer, focusing on payment-critical flows such as deposits, withdrawals, contract lifecycles, and compliance-driven features. You will take end-to-end ownership of quality for squad-level payment features, working hands-on with automation and end-to-end validation. In this role, you will act as a strong technical QA partner, collaborating closely with backend (Java/Kotlin, Kafka, REST, MySQL), frontend (TypeScript), and mobile engineers. You will operate in an Agile environment with a mature CI/CD setup, working alongside product, security, and compliance stakeholders. YOU WILL BE RESPONSIBLE FOR: Owning end-to-end testing and verification for Payments features delivered by your squad Breaking down ambiguous testing problems and define scoped, pragmatic test approaches with engineers and product Designing, building and maintaining robust automation (API, contract, E2E) and reliable test data/mocks for complex payment scenarios Improving CI feedback loops, reduce flakiness, and close observability/monitoring gaps for your area Triaging and resolving critical production defects and being an escalation point for quality issues in your squad Reviewing test plans, automation code and providing actionable feedback to raise the team’s craft Contributing to cross-squad initiatives and share knowledge across the QA chapter YOUR IMPACT: Writing clear, maintainable automation and test code; document test plans and design rationales Promoting non-functional quality: idempotency, data integrity, security, performance under load, and regulatory compliance Mentoring peers and collaborating proactively to improve processes, alerting and test coverage Communicating quality risk clearly to technical and non-technical stakeholders OUR SUCCESSFUL CANDIDATE WILL HAVE THE FOLLOWING: ESSENTIAL SKILLS Proven experience testing payment systems, financial transactions or other regulated platforms with domain ownership English at a min. B2+ level Strong automation skills: API testing (REST), contract testing, and E2E - fluent in TypeScript, Java or Kotlin Good grasp of microservices and event-driven systems (Kafka); able to reason about distributed failures Practical experience improving CI/CD pipelines and test feedback loops Backend testing experience across Java/Kotlin, MySQL and REST APIs Clear communicator, able to translate technical risk to stakeholders NICE TO HAVES Familiarity with payment concepts such as PSP integrations, idempotency, reconciliation, and contract state machines Experience testing performance and load in payment-critical flows Background in iGaming or another regulated industry Proficiency with test management tools (e.g. TestRail, Xray, Zephyr, or similar) Experience using mock data and mocking tools to simulate complex payment scenarios Experience with native app testing (TypeScript) Experience with Cucumber and Gherkin-based test automation Experience leading cross-functional initiatives WHO WE ARE: At the core of LeoVegas Group is Team Leo. Our culture is our foundation and is what enables us to innovate, build, and lead as we trailblaze our way through the igaming industry. We’re a team of over 2000 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 19 offices worldwide. BENEFITS: Hybrid work policy (3 days a week from office in Warsaw) 4 weeks of Workation (T&C apply) Competitive base salary Benefits package - 800 PLN net (B2B)/gross (UOP) monthly Our office provides complimentary snacks and drinks; on Mondays, we serve complimentary breakfast. Team and office social events throughout the year Equipment: MacBook + smartphone (iPhone or Samsung Galaxy)

🏢 Summary: Senior QA Engineer role focused on end-to-end quality ownership of payment-critical features such as deposits, withdrawals, and compliance-driven flows. The position emphasizes strong automation across API, contract, and E2E levels within a microservices, event-driven architecture. You will collaborate closely with backend, frontend, and mobile engineers in an Agile CI/CD environment to ensure high reliability and regulatory compliance. 🗂️ Requirements: Proven experience testing payment systems or regulated platforms, Strong automation experience in API, contract, and E2E testing, Proficiency in TypeScript, Java or Kotlin, Experience testing REST APIs and backend systems, Understanding of microservices and event-driven architectures, Experience with Kafka in distributed systems, Practical experience improving CI/CD pipelines, Experience with MySQL databases, Ability to analyze distributed system failures, Fluent English (B2+) 📃 Skills: TypeScript, Java, Kotlin, REST, Kafka, MySQL, CI/CD, Microservices, API, E2E, Cucumber, Gherkin, TestRail, Xray, Zephyr 🏢 Description: ABOUT THE ROLE: Join the Payments team at LeoVegas Group as a Senior QA Engineer, focusing on payment-critical flows such as deposits, withdrawals, contract lifecycles, and compliance-driven features. You will take end-to-end ownership of quality for squad-level payment features, working hands-on with automation and end-to-end validation. In this role, you will act as a strong technical QA partner, collaborating closely with backend (Java/Kotlin, Kafka, REST, MySQL), frontend (TypeScript), and mobile engineers. You will operate in an Agile environment with a mature CI/CD setup, working alongside product, security, and compliance stakeholders. YOU WILL BE RESPONSIBLE FOR: Owning end-to-end testing and verification for Payments features delivered by your squad Breaking down ambiguous testing problems and define scoped, pragmatic test approaches with engineers and product Designing, building and maintaining robust automation (API, contract, E2E) and reliable test data/mocks for complex payment scenarios Improving CI feedback loops, reduce flakiness, and close observability/monitoring gaps for your area Triaging and resolving critical production defects and being an escalation point for quality issues in your squad Reviewing test plans, automation code and providing actionable feedback to raise the team’s craft Contributing to cross-squad initiatives and share knowledge across the QA chapter YOUR IMPACT: Writing clear, maintainable automation and test code; document test plans and design rationales Promoting non-functional quality: idempotency, data integrity, security, performance under load, and regulatory compliance Mentoring peers and collaborating proactively to improve processes, alerting and test coverage Communicating quality risk clearly to technical and non-technical stakeholders OUR SUCCESSFUL CANDIDATE WILL HAVE THE FOLLOWING: ESSENTIAL SKILLS Proven experience testing payment systems, financial transactions or other regulated platforms with domain ownership English at a min. B2+ level Strong automation skills: API testing (REST), contract testing, and E2E - fluent in TypeScript, Java or Kotlin Good grasp of microservices and event-driven systems (Kafka); able to reason about distributed failures Practical experience improving CI/CD pipelines and test feedback loops Backend testing experience across Java/Kotlin, MySQL and REST APIs Clear communicator, able to translate technical risk to stakeholders NICE TO HAVES Familiarity with payment concepts such as PSP integrations, idempotency, reconciliation, and contract state machines Experience testing performance and load in payment-critical flows Background in iGaming or another regulated industry Proficiency with test management tools (e.g. TestRail, Xray, Zephyr, or similar) Experience using mock data and mocking tools to simulate complex payment scenarios Experience with native app testing (TypeScript) Experience with Cucumber and Gherkin-based test automation Experience leading cross-functional initiatives WHO WE ARE: At the core of LeoVegas Group is Team Leo. Our culture is our foundation and is what enables us to innovate, build, and lead as we trailblaze our way through the igaming industry. We’re a team of over 2000 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 19 offices worldwide. BENEFITS: Hybrid work policy (3 days a week from office in Warsaw) 4 weeks of Workation (T&C apply) Competitive base salary Benefits package - 800 PLN net (B2B)/gross (UOP) monthly Our office provides complimentary snacks and drinks; on Mondays, we serve complimentary breakfast. Team and office social events throughout the year Equipment: MacBook + smartphone (iPhone or Samsung Galaxy)

🏢 Summary: Senior QA Engineer role focused on end-to-end quality ownership of payment-critical features such as deposits, withdrawals, and compliance-driven flows. The position emphasizes hands-on automation (API, contract, E2E) within a microservices, event-driven environment. You will collaborate closely with backend, frontend, and mobile engineers to ensure high reliability, performance, and regulatory compliance of payment systems. 🗂️ Requirements: Proven experience testing payment systems or regulated financial platforms, Strong automation skills in API, contract, and E2E testing, Proficiency in TypeScript, Java or Kotlin, Experience testing REST APIs and backend services, Understanding of microservices and event-driven architectures, Experience with Kafka in distributed systems, Practical experience improving CI/CD pipelines, Experience with MySQL databases, Ability to handle production defects and quality escalations, English proficiency at B2 level or higher 📃 Skills: TypeScript, Java, Kotlin, REST, Kafka, MySQL, CI/CD, Microservices, API, E2E, Cucumber, Gherkin, TestRail, Xray, Zephyr 🏢 Description: ABOUT THE ROLE: Join the Payments team at LeoVegas Group as a Senior QA Engineer, focusing on payment-critical flows such as deposits, withdrawals, contract lifecycles, and compliance-driven features. You will take end-to-end ownership of quality for squad-level payment features, working hands-on with automation and end-to-end validation. In this role, you will act as a strong technical QA partner, collaborating closely with backend (Java/Kotlin, Kafka, REST, MySQL), frontend (TypeScript), and mobile engineers. You will operate in an Agile environment with a mature CI/CD setup, working alongside product, security, and compliance stakeholders. YOU WILL BE RESPONSIBLE FOR: Owning end-to-end testing and verification for Payments features delivered by your squad Breaking down ambiguous testing problems and define scoped, pragmatic test approaches with engineers and product Designing, building and maintaining robust automation (API, contract, E2E) and reliable test data/mocks for complex payment scenarios Improving CI feedback loops, reduce flakiness, and close observability/monitoring gaps for your area Triaging and resolving critical production defects and being an escalation point for quality issues in your squad Reviewing test plans, automation code and providing actionable feedback to raise the team’s craft Contributing to cross-squad initiatives and share knowledge across the QA chapter YOUR IMPACT: Writing clear, maintainable automation and test code; document test plans and design rationales Promoting non-functional quality: idempotency, data integrity, security, performance under load, and regulatory compliance Mentoring peers and collaborating proactively to improve processes, alerting and test coverage Communicating quality risk clearly to technical and non-technical stakeholders OUR SUCCESSFUL CANDIDATE WILL HAVE THE FOLLOWING: ESSENTIAL SKILLS Proven experience testing payment systems, financial transactions or other regulated platforms with domain ownership English at a min. B2+ level Strong automation skills: API testing (REST), contract testing, and E2E - fluent in TypeScript, Java or Kotlin Good grasp of microservices and event-driven systems (Kafka); able to reason about distributed failures Practical experience improving CI/CD pipelines and test feedback loops Backend testing experience across Java/Kotlin, MySQL and REST APIs Clear communicator, able to translate technical risk to stakeholders NICE TO HAVES Familiarity with payment concepts such as PSP integrations, idempotency, reconciliation, and contract state machines Experience testing performance and load in payment-critical flows Background in iGaming or another regulated industry Proficiency with test management tools (e.g. TestRail, Xray, Zephyr, or similar) Experience using mock data and mocking tools to simulate complex payment scenarios Experience with native app testing (TypeScript) Experience with Cucumber and Gherkin-based test automation Experience leading cross-functional initiatives WHO WE ARE: At the core of LeoVegas Group is Team Leo. Our culture is our foundation and is what enables us to innovate, build, and lead as we trailblaze our way through the igaming industry. We’re a team of over 2000 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 19 offices worldwide. BENEFITS: Hybrid work policy (3 days a week from office in Warsaw) 4 weeks of Workation (T&C apply) Competitive base salary Benefits package - 800 PLN net (B2B)/gross (UOP) monthly Our office provides complimentary snacks and drinks; on Mondays, we serve complimentary breakfast. Team and office social events throughout the year Equipment: MacBook + smartphone (iPhone or Samsung Galaxy)

🏢 Summary: QA Engineer role focused on backend testing within the Retention domain of an iGaming platform, supporting communication systems, bonuses, loyalty programs, and player engagement features. The position involves designing and executing automated and manual tests, debugging issues, and improving testing processes in a fast-paced agile environment. The offer includes hybrid work, training budget, workation options, and modern equipment. 🗂️ Requirements: 5+ years of software testing experience, 2+ years of automated testing experience, Experience with backend testing, Knowledge of Java, Knowledge of JavaScript, Knowledge of MySQL, Experience with Postman, Experience with DataDog, Structured QA and testing methodology approach, Strong problem-solving skills, Strong communication skills, Ability to manage incidents and improve system resilience, English proficiency minimum B2/C1 📃 Skills: Java, JavaScript, MySQL, Postman, DataDog, Kotlin, Confluence, TestRail, AI 🏢 Description: ABOUT THE ROLE Curious about what the iGaming industry has to offer? This is a fantastic opportunity to join a fast-paced, flat-structured team within LeoVegas' Retention domain as a Quality Assurance Engineer! The Retention team powers the organisation with communication capabilities, ranging from indirect and direct communication with the players to a custom-built toolbox that enriches the player journey with bonuses, loyalty programs, and seamless cross-channel experiences. As one of the most crucial parts of the player lifecycle, the Retention domain ensures our players return for new, exciting, and rewarding experiences. We’re driven by excellence and fueled by innovation. As a QA Engineer, you are a leading light, bringing a quality-first mindset to the whole process. You have a structured approach to creating test plans, writing and executing test cases, and debugging and reporting defects. YOU WILL BE RESPONSIBLE FOR: Collaborating with development teams to analyse requirements and define comprehensive test strategies for the backend side of our platform. Proactively work to ensure high-quality software releases by engaging in the planning and development phase. Design and develop test plans with cases, including automated and manual, for integration and regression, as well as exploratory testing. Execute test cases, accurately document defects, and provide timely reports on testing progress and results. Investigate, debug, and troubleshoot issues, providing technical advice and support to stakeholders. Maintain and update the test case repository. Contribute to the continuous improvement of the testing process. Stay up-to-date with new testing tools and technologies OUR SUCCESSFUL CANDIDATE WILL HAVE THE FOLLOWING: ESSENTIAL SKILLS You have at least 2 years of experience creating automated tests and 5 years of experience with testing in general. You have a structured approach to quality assurance, including well-defined testing methodologies. You understand Java (as you will be testing backend). You know JavaScript, MySQL, Postman and DataDog. You have strong problem-solving and communication skills. You have the ability to manage incidents by balancing tactical short-term solutions while suggesting long-term changes that enhance system resilience. You speak English fluently (B2/C1 level is a minimum, as we communicate in English). NICE TO HAVES Familiarity with Kotlin, Confluence and TestRail. Experience using AI in testing. WHO WE ARE At the core of LeoVegas Group is Team Leo. Our culture is our foundation and is what enables us to innovate, build, and lead as we trailblaze our way through the igaming industry. We’re a team of over 2000 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 18 offices worldwide. BENEFITS Hybrid work policy (3 days from the office) 4 weeks of Workation  (T&C apply) Benefits package - 800 PLN net (B2B)/gross (UOP) monthly with access to the cafeteria platform (private medical care, insurances, sports card) Training budget ICAS assistance program that can provide help and guidance during challenging moments. Our office provides complimentary snacks and drinks; on Mondays, we serve complimentary breakfast. Team and office social events throughout the year Free parking for bicycles and motorcycles Free gym in the building Equipment: MacBook Pro + smartphone (iPhone 16/17 or Samsung Galaxy S25) JOIN US! In our pride, we empower our teammates to find their roar and run with their wildest ideas. We don’t wait for things to happen; we pounce and make it happen! Would you be a good fit for the Leo Pride - give us a roar! As our company working language is English, we’d like to see your CV in English, please

🏢 Summary: Frontend JavaScript Engineer role focused on developing and maintaining high-quality web applications for a large-scale igaming platform. The position involves building new features, enhancing user experience, and collaborating with cross-functional teams to deliver and expand frontend products across multiple markets. The engineer will drive frontend development using modern JavaScript technologies in a microservices environment. 🗂️ Requirements: Proven experience with JavaScript, Good knowledge of GraphQL, Commercial experience with React, Commercial experience with TypeScript, Experience with Next.js, Working proficiency with Node.js, Experience working with microservices architecture 📃 Skills: JavaScript, GraphQL, React, TypeScript, Next.js, Node.js, Microservices, OpenAPI, BigQuery 🏢 Description: ABOUT THE ROLE We are looking for a passionate and experienced self-driven JavaScript Engineer to join in on our mission to deliver the greatest igaming experience to our customers. As a part of our multinational frontend team, you would be an important cog in the machinery, creating new features for and maintaining the full product of LeoVegas.com . In close collaboration with product managers, designers and our backend peers, we get to work with a broad variety of initiatives: everything from responsible gaming and payments to the casino lobby layout and new market entries. YOU WILL BE RESPONSIBLE FOR: Develop and maintain high-quality JavaScript applications Ensure a smooth and engaging user experience You will be responsible for driving the development of most of the frontend features of Leovegas.com Improve and maintain the applications with a product focus Contribute to launching new brands and brand expansions into new territories OUR SUCCESSFUL CANDIDATE WILL HAVE THE FOLLOWING: ESSENTIAL SKILLS Proven experience with Javascript Good knowledge of GraphQL Working experience with React and Typescript (Next.js) Working proficiency with Node.js and Microservices NICE TO HAVES Experience with OpenAPI Experience with BigQuery BENEFITS Hybrid work policy 4 weeks of Workation (T&C apply) Benefits package - 800 PLN net (B2B)/gross (UOP) monthly with access to the cafeteria platform (private medical care, insurances, sports card) Training budget ICAS assistance program that can provide help and guidance during challenging moments. Our office provides complimentary snacks and drinks; on Mondays, we serve complimentary breakfast. Team and office social events throughout the year Free parking for bicycles and motorcycles Free gym in the building Equipment: MacBook Pro + smartphone (iPhone 16/17 or Samsung Galaxy S25) WHO WE ARE At the core of LeoVegas Group is Team Leo. Our culture is our foundation and is what enables us to innovate, build, and lead as we trailblaze our way through the igaming industry. We’re a team of over 2000 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 19 offices worldwide. JOIN US! In our pride, we empower our teammates to find their roar and run with their wildest ideas. We don’t wait for things to happen; we pounce and make it happen! Would you be a good fit for the Leo Pride - give us a roar! As our company working language is English, we’d like to see your CV in English, please

🏢 Summary: Engineering Manager role leading distributed teams focused on sportsbook trading and feeds integration within a microservices-based platform. The position combines technical leadership, people management, and cross-team coordination in a fast-paced agile environment. 🗂️ Requirements: 5+ years of engineering experience, Experience with Java or other object-oriented backend technologies, Experience with microservices architectures, Experience with Kafka or other message brokers, 3+ years of Engineering Manager or Team Lead experience, People management experience, Experience with agile methodologies, Ability to lead cross-functional and distributed teams 📃 Skills: Java, Kafka, Microservices, Agile 🏢 Description: ABOUT THE ROLE LeoVegas Group is building something special – a world-class team dedicated to creating the best Sportsbook platform in the market through cutting-edge technology and innovative gaming experiences. To lead the charge, we're searching for a passionate and driven Engineering Manager who will lead two existing teams in Poland and Spain, focusing on the Sportsbooks platform domain, specifically responsible for Trading and Feeds Integration. YOU WILL BE RESPONSIBLE FOR: Provide technical leadership and mentorship to a team of senior engineers. While not directly coding on a daily basis, you will contribute your expertise to architectural discussions, guidance for the teams, and the establishment of engineering best practices. Champion a culture of engineering excellence by defining and implementing processes that enhance code quality, development efficiency, and team collaboration. Lead with a people-first approach. You will be responsible for all aspects of people management, including performance evaluations, development plans, 1:1s, and fostering a positive and empowering work environment. Collaborate closely with product management to provide technical insights and contribute to the definition of product roadmaps, ensuring alignment between engineering capabilities and business goals. Coordinate cross-team dependencies and deliver on time. Lead the projects that you own, and support projects led by other teams. OUR SUCCESSFUL CANDIDATE WILL HAVE THE FOLLOWING: Essential Skills: Solid engineering background, spending at least 5+ years working as an engineer (preferably Java or any other object-oriented backend technology) Experience with microservices-based products and message brokers (we use Kafka) At least 3 years of experience as an Engineering Manager or Team lead People management experience (leading 121s, performance evaluations, etc.) Experience with agile methodologies and goals Nice-to-Have: Experience managing more than one single team Experience managing remote teams Experience working with a high load of real-time data Experience working with external data providers WHO WE ARE At the core of LeoVegas Group is Team Leo. Our culture is our foundation and is what enables us to innovate, build, and lead as we trailblaze our way through the igaming industry. We’re a team of almost 2000 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 19 offices worldwide. WHAT WE OFFER ●   Hybrid work policy ( 🏢 Our office is located in the centre of Warsaw - on Królewska 16 👑) ●   4 weeks of Workation (T&C apply) ●   Benefits package - 800 PLN net (B2B)/gross (UOP) monthly with access to the cafeteria platform (private medical care, insurances, sports card) ●   Training budget ●   ICAS assistance program that can provide help and guidance during challenging moments. ●   Our office provides complimentary snacks and drinks; on Mondays, we serve complimentary breakfast. ●   Team and office social events throughout the year ●   Free parking for bicycles and motorcycles ●   Free gym in the building ●   Equipment: MacBook Pro + smartphone (iPhone 16/17 or Samsung Galaxy S25) JOIN US! At LeoVegas Group, we encourage our teammates to find their roar and run with their boldest ideas. We don't wait for things to happen—we pounce and make them happen! Would you be a great fit for Leo Pride? Give us a roar and apply today! 🚀 As our company's working language is English, please submit your CV in English. More about us: Careers site: www.leovegasgroup.com/careers LinkedIn: https://www.linkedin.com/company/leovegasgroup/ Instagram: www.instagram.com/lifeatleo/

🏢 Summary: The offer is for a Software Architect role focused on designing and delivering scalable, low-latency microservices for a high-volume, real-time Sportsbook platform. The position involves leading architectural decisions, improving system performance and resilience, and guiding engineering teams in a complex distributed environment. 🗂️ Requirements: 8+ years of hands-on experience with Java, Experience designing and deploying scalable RESTful microservices in production, Experience with distributed and real-time systems, 8+ years of experience with Java frameworks such as Spring Boot or Vert.x, Experience with asynchronous messaging systems, Hands-on experience with relational and NoSQL databases, Experience with container orchestration and managing containerized applications, Experience automating CI/CD pipelines, Understanding of reactive programming concepts 📃 Skills: Java, Spring, SpringBoot, Vertx, REST, Microservices, Kafka, NATS, MariaDB, MongoDB, Elasticsearch, Redis, Kubernetes, Nomad, CI/CD, RxJava, AWS, GCP 🏢 Description: About the role As a Software Architect, you'll play a pivotal role in designing and implementing innovative features for our cutting-edge Sportsbook platform. Working in a highly collaborative and agile environment, you'll collaborate with product managers, engineers, and fellow architects to deliver high-performing solutions within a complex microservices architecture. We're seeking a passionate and technically strong Software Architect to help us build the best Sportsbook platform in the industry. If you thrive in a fast-paced, collaborative environment and love designing and building high-quality, low-latency systems, this is the opportunity for you! YOU WILL BE RESPONSIBLE FOR Design and document software architectures and technology strategies for our high-volume, real-time betting platform. Lead the design and implementation of scalable, low-latency, and resilient systems, focusing on performance and maintainability. Analyze and prototype new technologies, providing documented recommendations and influencing technology choices. Actively participate in code reviews, mentoring, and coaching development teams to ensure high-quality code and system design. Continuously improve our live systems, focusing on performance, scalability, and resilience. OUR SUCCESSFUL CANDIDATE WILL HAVE THE FOLLOWING ESSENTIAL SKILLS Proven ability to design, implement, and deploy highly scalable RESTful Microservices in a production environment. 8+ years of hands-on experience with Java (latest versions) and its ecosystem. Experience designing, building, and troubleshooting distributed and real-time systems. 8+ years of experience building applications with Java frameworks like Spring Boot or Vert.x. Familiarity with asynchronous messaging systems (e.g., Kafka, Nats). Hands-on experience with databases like MariaDB, MongoDB, Elasticsearch, and Redis. Understanding of container orchestration frameworks (e.g., Kubernetes, Nomad), including deploying and managing containerized applications. Proven ability to automate CI/CD pipelines. Excellent written and verbal communication skills, with the ability to explain complex technical concepts to both technical and non-technical audiences. Familiarity with Reactive Programming concepts and experience with frameworks like RxJava. NICE TO HAVES Experience leveraging AWS managed services (e.g., Cloudfront, RDS, OpenSearch, ElastiCache, EKS, MSK) and/or Google Cloud Platform equivalents. Familiarity with the online gaming, gambling, or sports betting industry. Strong understanding of performance optimization techniques and experience tuning high-performance applications. WHO WE ARE At the core of LeoVegas Group is Team Leo. Our culture is our foundation and is what enables us to innovate, build, and lead as we trailblaze our way through the igaming industry. We’re a team of over 2000 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 19 offices worldwide. WHAT WE OFFER: hybrid model - we would like you to show up in our Warsaw office three times per week, the rest of the days of the week are up to you, we work in European office hours, 800 PLN monthly for benefits (we have a platform with sport cards and different options for private healthcare), welcome package, no dress code, international teams, Equipment: MacBook Pro 16" (or 14")/M2 Pro 10-core/GPU 16-core/32GB/512GB SSD + phone (Samsung or iPhone - it’s your choice). THE PROCESS: 30-45 minutes meeting with our recruiter 60 minutes technical meeting with Senior Staff Architect 30 minutes technical meeting with Senior Staff Backend Engineer 60 minutes cultural interview with your future Manager Our office is located in the centre of Warsaw - on Królewska 16 👑 As our company working language is English, we’d like to see your CV in English please More about us: Careers site: www.leovegasgroup.com/careers LinkedIn: https://www.linkedin.com/company/leovegasgroup/ Instagram: www.instagram.com/lifeatleo/