Engineering Manager - Payments

🏢 Summary: Engineering Manager role leading a team building internal web applications and APIs in the payments domain, responsible for system reliability, feature delivery, and business-critical initiatives. The position combines people management, technical oversight, and process optimization across SDLC, CI/CD, and incident management. You will drive engineering excellence, mentor developers, and ensure high-quality releases through strong Agile practices. 🗂️ Requirements: 5+ years of experience developing web applications and APIs, Proven experience leading and managing engineering teams, Strong background in Agile software development methodologies, Ability to conduct code reviews and oversee technical discussions, Experience planning and executing sprints and roadmap deliverables, Experience optimizing CI/CD pipelines and DevOps practices, Ability to monitor system health and manage incidents, Strong communication and stakeholder management skills 📃 Skills: Agile, APIs, Web, CI/CD, DevOps, SDLC, QA, Payments, IncidentManagement, RegressionTesting, Automation, KPIs 🏢 Description: ABOUT THE ROLE We're looking for an Engineering Manager to lead a team of engineers building internal tooling and APIs within the payments domain. You’ll be responsible for ensuring system reliability, delivering new features, and driving business-critical initiatives. This area manages web applications and APIs, where you oversee daily operations, drive technical execution, and support team growth across the whole employee lifecycle - hiring & developing talent. YOU WILL BE RESPONSIBLE FOR: Team Management & Support: Run daily standups Hold regular one-on-ones Drive goal setting and career development Lead hiring and onboarding Provide technical guidance and mentorship Track and act on engineering KPIs Technical & Project Oversight: Participate in code reviews and pull request approvals Lead technical discussions and discovery sessions Monitor system health and manage incidents Process & Execution: Plan and execute sprints and roadmap deliverables, ensuring clear timelines and resource alignment Optimize CI/CD pipelines and DevOps practices Work closely with engineering, product, and QA teams Champion Quality in all releases by ensuring proper regression testing and automation coverage in collaboration with QA engineers Enforce incident management processes Report on progress, risks, and changes to stakeholders related to development and operations Strategy & Leadership: Contribute to the engineering, SDLC and QA strategy. Conduct performance reviews and support career growth Maintain strong communication with stakeholders OUR SUCCESSFUL CANDIDATE WILL HAVE THE FOLLOWING: Essential Skills: Solid engineering background, spending at least 5+ years working as an engineer developing web applications and APIs Proven experience in leading and managing engineering teams Transparent and inspiring leadership style that builds trust Excellent communication skills, with the ability to guide and challenge teams effectively when needed Deep understanding of Agile software development methodologies Nice-to-Have: Experience in payments domain Knowledge of the iGaming industry 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 1800 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 16 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: Engineering Manager role leading a team responsible for internal retention tools that enhance player engagement and lifecycle experiences. The position combines people management with technical oversight, including code reviews, incident management, and CI/CD optimization. The role drives Agile delivery, engineering quality, and DevOps practices while contributing to engineering and SDLC strategy. 🗂️ Requirements: Proven experience leading and managing engineering teams, Solid software engineering background, Experience with Agile software development methodologies, Ability to oversee code reviews and technical discussions, Experience with CI/CD pipelines and DevOps practices, Experience with incident management and system monitoring, Ability to plan and execute sprints and roadmap deliverables, Experience collaborating with Product and QA teams, Fluent English communication skills 📃 Skills: Agile, CI/CD, DevOps, SDLC, QA, KPIs, Automation, Regression, Monitoring, Git 🏢 Description: ABOUT THE ROLE We are looking for an Engineering Manager to lead a team of engineers building internal tooling and features that keep players engaged. The Retention team powers the organisation with 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. Now we’re looking for someone who wants to be part of that journey. You will be responsible for overseeing the daily operations, driving technical execution, and supporting team growth across the whole employee lifecycle - hiring & developing talent. YOU WILL BE RESPONSIBLE FOR: Team Management & Support: Run daily standups Hold regular one-on-ones Drive goal setting and career development Lead hiring and onboarding Provide technical guidance and mentorship Track and act on engineering KPIs Technical & Project Oversight: Participate in code reviews and pull request approvals Lead technical discussions and discovery sessions Monitor system health and manage incidents Process & Execution: Plan and execute sprints and roadmap deliverables, ensuring clear timelines and resource alignment Optimize CI/CD pipelines and DevOps practices Work closely with engineering, product, and QA teams Champion Quality in all releases by ensuring proper regression testing and automation coverage in collaboration with QA engineers Enforce incident management processes Report on progress, risks, and changes to stakeholders related to development and operations Strategy & Leadership: Contribute to the engineering, SDLC and QA strategy. Conduct performance reviews and support career growth Maintain strong communication with stakeholders OUR SUCCESSFUL CANDIDATE WILL HAVE THE FOLLOWING: ESSENTIAL SKILLS Solid engineering background Proven experience in leading and managing engineering teams Transparent and inspiring leadership style that builds trust Excellent communication skills, with the ability to guide and challenge teams effectively when needed Deep understanding of Agile software development methodologies NICE TO HAVES Experience in retention or user engagement domain Knowledge of the iGaming industry 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 work policy (3 days a week from 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) 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 Training budget ICAS assistance program that can provide help and guidance during challenging moments. Equipment: MacBook Pro + smartphone (iPhone 15 or Samsung Galaxy S24). 🏢 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/

🏢 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: QA Automation Engineer role within a Sportsbook team, focused on ensuring high quality, security, and performance of a global betting platform through backend and frontend test automation. The position involves designing and maintaining automated tests, improving test strategies, and collaborating in an Agile environment with Java and TypeScript engineers. The role combines API, UI, and E2E testing with real-time data challenges in a fast-paced product environment. 🗂️ Requirements: Experience with backend test automation using Java, Practical experience with automated API testing, Familiarity with REST APIs, Basic understanding of microservices architecture, Proficiency with test management tools (e.g. TestRail or similar), Understanding of Agile/Scrum methodologies 📃 Skills: Java, API, REST, Microservices, TestRail, Agile, Scrum, Playwright, CI/CD, PerformanceTesting 🏢 Description: ABOUT THE ROLE: Are you a QA Automation Engineer who thrives in a fast-paced environment? Join the Sportsbook team at LeoVegas and help shape the future of our betting platform. Your work will directly impact millions of users, ensuring a secure, seamless, and high-performance experience across all our global brands. Working in a collaborative Agile team alongside skilled Java, TypeScript, and QA engineers, you will design robust test strategies and define clear scopes aligned with business goals. If you want to tackle real-time data challenges and elevate a world-class sports betting product, we’d love to hear from you! YOU WILL BE RESPONSIBLE FOR: Designing, executing, and maintaining test cases for backend and frontend components Identifying opportunities for automation across the betting flow and contributing to their implementation Supporting the design and maintenance of automated tests (API, UI, E2E) Collaborating with developers and QAs to define testing scope and ensure adequate test coverage Executing manual and automated tests as part of the development lifecycle Reporting, tracking, and verifying defects, ensuring timely resolution Contributing to improving test processes, reliability, and overall product quality Communicating risks and findings clearly to team members and stakeholders OUR SUCCESSFUL CANDIDATE WILL HAVE THE FOLLOWING: ESSENTIAL SKILLS Experience with backend test automation using Java Practical experience with automated API testing Familiarity with REST APIs and basic understanding of microservices architecture Proficiency with test management tools (e.g. TestRail or similar) Understanding of Agile/Scrum and modern software development practices NICE TO HAVES Experience with frontend testing including UI automation tools (Playwright) Experience with CI/CD pipelines Knowledge of event-driven systems Experience with performance testing ISTQB certification Interest in or experience with the iGaming domain WHAT WE VALUE: Proactive mindset - you identify issues and opportunities to improve quality Collaborative approach - you work closely with developers, PMs, and other QAs Curiosity about the product - you want to understand the betting domain, not just test it 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 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, on Wednesdays Fika, and Fridays croissants 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 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: Mobile Application Engineer role focused on building and maintaining React Native applications for iOS and Android within the gaming and casino domain. The position involves developing new features, improving user experience, and delivering end-to-end solutions in collaboration with backend engineers, product managers, and designers. The engineer will contribute to launching new brands and expanding products into new markets. 🗂️ Requirements: Minimum 5 years of mobile development experience for Android and iOS, Strong experience with React Native or React, Proficiency in TypeScript, Strong understanding of core JavaScript principles, Experience with cloud integrations, Experience with REST APIs, Experience with GraphQL, Experience with Datadog, Experience with Firebase, Experience with version control systems 📃 Skills: React, ReactNative, TypeScript, JavaScript, REST, GraphQL, Datadog, Firebase, CI/CD, Git, Android, iOS, Cloud 🏢 Description: ABOUT THE ROLE We're looking for a Mobile Application Engineer, specializing in React Native, with a mobile-first mindset and an understanding of native development to help drive our projects forward. As a part of the Gaming team, you would be an important cog in the machinery, creating new features for the casino vertical of our sites and its lobby. You will be part of driving a newly created frontend team within Gaming to deliver products and features end to end together with our backend engineers. In close collaboration with product managers, designers and our backend peers, we get to work with a broad variety of initiatives where we are aiming to level up our Casino site to the next level. YOU WILL BE RESPONSIBLE FOR: Develop and maintain high-quality React native applications for both iOS and Android platforms Ensure a smooth, engaging, and intuitive user experience Work on apps for LeoVegas brands such as BetMGM, BetUK, and Expekt Improve and enhance applications with a strong product focus Contribute to launching new brands and expanding into new markets OUR SUCCESSFUL CANDIDATE WILL HAVE THE FOLLOWING: ESSENTIAL SKILLS At least 5 years of experience working as a mobile developer for Android and iOS Strong experience with React Native preferred, will consider React only experience Proficiency in TypeScript Good understanding of core JavaScript principles and concepts Experience with cloud integrations Experience with Rest API, Datadog, GraphQL, Firebase and version control NICE TO HAVES Experience writing Unit Tests Hands-on experience optimizing mobile performance Experience with CI/CD integrations 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. WHAT WE OFFER 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 15 or Samsung Galaxy S24) 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 Domain Architect role combining hands-on Java/Kotlin development with architectural leadership in the Payments domain, focused on designing scalable, high-through transactional systems and guiding technical direction. The position involves defining architecture standards, driving technical roadmap, and mentoring engineers while collaborating with product and business stakeholders. The role requires active coding, architectural governance, and ensuring resilient, future-proof enterprise systems. 🗂️ Requirements: Minimum 5 years experience as Senior Software Engineer, Minimum 2 years experience in architectural decision-making, Strong Java and/or Kotlin development experience, Experience with Event-Driven Architecture, Experience with Microservices Architecture, Experience designing scalable, high-concurrency, fault-tolerant systems, Experience working with business stakeholders, PMs or POs, Ability to lead and mentor engineering teams, Hands-on coding experience 📃 Skills: Java, Kotlin, Microservices, Event-Driven, Architecture, Scalability, Concurrency, Fault-tolerance 🏢 Description: ABOUT THE ROLE: The Domain Architect (DA) role is a combined senior developer and architect position with a hands-on approach. You will be responsible for designing, optimizing, and governing the technical and functional development within Payments domain. You will work together with Engineering and Product teams to create innovative, high-performing features and high-throughput transactional systems to deliver "The greatest iGaming experience." A key expectation is to write code and guide/mentor developers in the domain to ensure the platform is robust, scalable, future-proof, and aligns with business goals and enterprise architecture. YOU WILL BE RESPONSIBLE FOR: Develop and maintain the architecture for the specific domain and its technical roadmap . Help the team design the architecture and implement solutions for complex features. Ensure the architecture is scalable, resilient, and efficient , aligned with business, IT, and legal strategies. Drive continuous improvement in the architecture. Define architecture principles, models, and guidelines. Define and enforce architectural standards and governance processes. Lead other engineers and educate developers in best practices and architecture principles. Review developers' work and provide relevant feedback. Represent the domain in technical discussions with architect peers and stakeholders. Responsible for maintaining comprehensive documentation (diagrams, models, decision logs). Work closely with business stakeholders to translate their needs into architectural solutions. Communicate complex technical challenges for non-technical stakeholders. OUR SUCCESSFUL CANDIDATE HAVE THE FOLLOWING: Been working a minimum of 5 years as a senior software engineer. Minimum 2 years of experience making technical decisions on an architectural level. Clear Communication - ability to adapt depending on the audience. Experience working with business stakeholders or/and PMs/PO. Solid background as a Java and/or Kotlin developer. Experience with Event-Driven Architecture and Microservice Architecture. Ability to lead/mentor teams, strong analytical/problem-solving skills, and a good understanding of architectural principles in scalable, highly concurrent, and fault-tolerant enterprise systems. Passion for software development and hands-on work with code. NICE TO HAVES: Fullstack experience. Solution-oriented mindset. Experience in driving creation of architectural guidelines and documentation 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 1800 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 16 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: 45 minutes meeting with our recruiter 90 minutes technical meeting with Lead Architect case study - a problem for you to crack at home 90 minutes final interview where you can present your ideas for the case study 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/

🏢 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/