New offer - be the first one to apply!
July 2, 2026
Senior Backend Engineer - Core Experience
Senior • Hybrid
21,800 - 27,200 PLN
Warsaw, Poland
About the Role
Join the Markets Platform Team and play a crucial role in enhancing the global customer onboarding process and developing responsible gaming features. Your work will ensure a seamless, secure, and enjoyable experience for customers across all brands.
In this position, you will focus on refining the onboarding journey and promoting responsible gaming. The mission is to create a safe gaming environment where players can set healthy limits on their gambling habits. The team leverages 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.
Responsibilities
- 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 (unit, e2e, integration) and updating documentation.
- Participating in architectural discussions and suggesting ideas for technical improvements.
- Collaborating 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.
Requirements
Essential Skills
- Minimum 5 years of experience using Java and Spring Boot framework, or similar experience in object-oriented languages such as C#, C++, Python, or PHP with willingness to learn Java.
- Experience with SQL and relational databases.
- Familiarity with microservice architectures.
Nice to Haves
- Experience with Kotlin, Git, Kafka, and 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.
Benefits
- Hybrid work policy.
- 4 weeks of Workation (T&C apply).
- Monthly benefits package with access to cafeteria platform, private medical care, insurance, and sports card.
- Training budget.
- ICAS assistance program.
- Complimentary snacks and drinks in the office, including breakfast on Mondays.
- Team and office social events throughout the year.
- Free parking for bicycles and motorcycles.
- Free gym in the building.
- Equipment provided: MacBook Pro and smartphone.
Join Us
The team empowers employees to innovate and contribute ideas in a fast-paced and agile environment. As the company working language is English, CVs should be submitted in English.
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Warsaw, Poland
34,000 - 40,000 PLN
🏢 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/
Technology
LeoVegas Mobile Gaming Group
Engineering Manager - Payments
Senior
Hybrid
Warsaw, Poland
34,000 - 40,000 PLN
🏢 Summary: Engineering Manager role leading a team building internal web applications and APIs in the payments domain, ensuring system reliability and delivery of business-critical initiatives. The position combines technical oversight, people management, and process optimization across SDLC, CI/CD, and QA practices. You will drive execution, support team growth, and oversee operational excellence. 🗂️ Requirements: 5+ years experience developing web applications and APIs, Proven experience leading and managing engineering teams, Strong understanding of Agile methodologies, Experience with code reviews and pull request approvals, Experience monitoring system health and managing incidents, Experience planning and executing sprints and roadmaps, Experience optimizing CI/CD pipelines and DevOps practices, Experience ensuring regression testing and automation coverage, Ability to track engineering KPIs and report on technical progress 📃 Skills: Agile, APIs, Web, CI/CD, DevOps, SDLC, QA, Automation, Payments, iGaming 🏢 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/
Technology
LeoVegas Group
Domain Architect - Sports Platform Engineering
Senior
Hybrid
Warsaw, Poland
32,500 - 33,500 PLN
🏢 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/