Tech.

Senior Java Backend Engineer – (PAM) About the Opportunity We are looking for a Senior Java Backend Engineer to help build a new-generation online gaming platform from the ground up. You’ll focus on the backend of a Player Account Management (PAM) system, developing services for player accounts, wallets, transactions, payments, bonuses, and account lifecycle management. This is a true greenfield project supporting a high-volume gaming operation, so reliability, scalability, data integrity, and strong engineering practices are essential. You’ll work closely with senior and principal engineers while taking ownership of services within your domain. Your Responsibilities Develop backend services using Java 17+ and Spring Boot. Build functionality around wallets, financial ledgers, payments, bonuses, and player accounts. Design REST APIs and event-driven integrations using technologies such as Kafka. Ensure transactional integrity through proper transaction handling, idempotency, and failure management. Maintain strong automated test coverage across unit, integration, and contract tests. Implement KYC/AML, responsible gaming, and audit-related requirements. Add monitoring, logging, tracing, metrics, and alerting to production services. Participate in on-call support and production troubleshooting. Contribute to technical designs, RFCs, and code reviews. Use AI-assisted development tools as part of your engineering workflow. Support migration from an existing third-party platform, including testing, data validation, and cutover activities. What We’re Looking For 7+ years of experience with Java 17+ and Spring Boot. Experience building transactional systems where data accuracy is critical. Background in payments, banking, wallets, e-commerce, gaming, fintech, or similar domains. Strong relational database skills, preferably PostgreSQL. Experience with Kafka, RabbitMQ, or similar messaging technologies. Good understanding of idempotency, retries, transactions, and concurrency. Strong testing practices across unit, integration, and contract testing. Experience with containers, CI/CD, and production monitoring. iGaming or sports betting experience Nice to Have Kubernetes and AWS KYC/AML or responsible gaming knowledge Experience with AI coding assistants or agentic development What We Offer Fully remote work from anywhere in EU in a B2B contract Competitive senior-level salary plus performance bonus Budget for equipment, tools, and professional development Private healthcare and additional benefits Opportunity to build a modern platform from scratch, without legacy constraints

We are looking for a Principal Backend Engineer (JAVA/PAM) to help build a new-generation platform for a leading online gaming and betting business. This is a great opportunity where you will have significant influence over the architecture, engineering standards, and future backend organisation. You will be hands-on with Java while helping establish the foundations for a platform designed to handle large transaction volumes with high availability, low latency, and strong data integrity. The platform will cover critical areas including player accounts, wallets, payments, transaction processing, bonuses, and compliance-related services. What You'll Do Lead the architecture and development of core backend and platform services. Design and build high-performance transactional systems using Java. Define service boundaries, APIs, data models, integration patterns, and event-driven architecture. Solve complex problems around consistency, idempotency, transaction integrity, scalability, and failure handling. Build systems capable of handling high volumes and demanding sportsbook/betting peaks. Design integrations with payment gateways, payment providers, and third-party platforms. Establish engineering standards around testing, observability, reliability, CI/CD, and code quality. Contribute hands-on code while providing technical leadership and mentoring senior engineers. Help shape the backend engineering organisation as the platform grows. Support the migration from existing third-party technology where required. What We're Looking For 10+ years of backend engineering experience, including significant Staff/Principal-level architecture ownership. Expert Java knowledge and strong understanding of the modern JVM, including performance, concurrency, and memory management. Proven experience building high-throughput, high-performance transactional systems. Experience with wallets, payments, ledgers, account management, billing, trading, or similar money-moving platforms. Strong experience with relational databases such as PostgreSQL, including performance and scaling. Solid distributed-systems knowledge, including event-driven architecture, Kafka or similar technologies, idempotency, sagas/outbox patterns, and failure handling. Experience taking a greenfield platform from initial architecture through to production. Experience integrating backend platforms with payment gateways and external providers. Excellent English communication skills. Highly Desirable iGaming, sportsbook, PAM, wallet, payments, or wider gaming-platform experience. Experience working in regulated or high-volume transactional environments. Knowledge of KYC/AML, responsible gaming, or regulatory requirements. Kubernetes and cloud experience (AWS, GCP, or Azure). Experience migrating away from a third-party platform. PAM experience is a strong advantage, but not essential. Exceptional candidates with deep expertise in high-throughput transactional systems, JVM performance, database optimisation, and distributed systems are encouraged to apply. What’s Offered Fully remote work from EU in a B2B contract (candidates must have their entities in EU) Bonus + Long term incentive (LTI) Budget for hardware, tooling, and professional development. Genuine ownership and the opportunity to help build the future backend organisation.

Responsibilities: Design, develop, and maintain full-stack applications using .NET technologies, ReactJS, ASP.NET MVC, and MS SQL, with a focus on performance, scalability and maintainability. Develop and integrate backend services, front-end features, messaging systems and background services. Participate in brainstorming sessions and contribute ideas to the company’s technical architecture and business product. Stay up to date with emerging technologies, tools, and frameworks, driving innovation and continuous improvement initiatives across the development team. Requirements: +5 years of hands-on development experience, working across both backend and front-end technologies. Solid understanding of software development principles, OOP and design patterns. Hands-on experience developing front-end applications using ReactJS or similar frameworks, JavaScript, HTML and CSS. Proficiency in C#, .NET technologies, ASP.NET MVC, Service Oriented Architecture (SOA), distributed caching (e.g. Redis) and MS SQL.