Backend Engineer

Atlaslive is a dynamic iGaming platform that provides the best quality software solutions for iGaming business. We’re building a microservices-based platform on Java/Spring Boot (billing, authentication, user management, gaming services) with high requirements for reliability and performance.

We are looking for an experienced Senior Java Developer to join the team that owns Billing and User Management. The team builds and maintains core platform services: player wallets and balances, transaction processing, deposits and withdrawals, deposit and spending limits, player accounts and profiles, authentication, and KYC (identity verification). These services are business-critical. Every bet, payment, and bonus on the platform depends on them, so correctness, consistency, and reliability matter a lot.

Requirements:

• 5+ years of commercial experience with Java.
• Strong experience with Spring Boot and the modern Java ecosystem.
• Experience developing and supporting microservice architectures.
• Strong knowledge of SQL databases (PostgreSQL preferred), transactions, locking, and data modeling.
• Experience building and maintaining REST APIs.
• Solid understanding of distributed systems and high-load applications.
• Experience with event-driven architectures and messaging systems.
• Experience with transactional systems where data consistency is critical.
• Understanding of software architecture patterns and system design.
• Experience writing unit and integration tests.
• Experience with CI/CD pipelines and modern development practices.
• Experience with containerized applications and cloud environments.
• Ownership mindset and the ability to take tasks from requirements to production.
• Good communication skills and the ability to work with both technical and business teams.

Responsibilities:

• Design, develop, and maintain scalable backend services for billing: wallets, balances, transaction processing, deposits, withdrawals, corrections, and player limits.
• Build and evolve user management features: registration, player accounts and profiles, authentication, account statuses, and restrictions.
• Develop KYC flows: document verification, integrations with KYC providers, verification statuses, and compliance checks.
• Keep financial operations consistent and correct, including idempotency, concurrency control, and auditability.
• Integrate with internal platform services (casino, sportsbook, bonus, payments) and third-party providers.
• Take part in architecture discussions and technical decisions.
• Keep services reliable, fast, and scalable under high load.
• Write clean, well-tested code and take part in code reviews.
• Work closely with Product Managers, Business Analysts, QA Engineers, Architects, and DevOps.
• Take part in planning and estimation.
• Share knowledge with and support other engineers on the team.
• Support incident investigation, troubleshooting, and production stability.

Nice to have:

• Experience in iGaming, Casino, Sportsbook, Gambling, or FinTech.
• Hands-on experience with billing, wallet, ledger, or payment systems.
• Experience with double-entry accounting or financial reconciliation.
• Experience with user management, identity, or authentication systems (OAuth2, JWT, Keycloak, or similar).
• Experience integrating with KYC/AML providers (for example Sumsub, Onfido, Jumio, or similar).
• Knowledge of regulatory and compliance requirements: KYC, AML, GDPR, and responsible gaming.
• Experience with Kafka, RabbitMQ, or other messaging platforms.
• Experience with Redis and caching strategies.
• Experience with Kubernetes and cloud-native infrastructure.
• Practical experience using AI tools to make software development more productive.
• Experience with AI-assisted development, including AI agents, code generation, automated testing, and technical documentation.
• Familiarity with Specification-Driven Development (SDD) or similar approaches, where structured specifications and automation drive requirements, architecture, and implementation.

The Interview Process:

• 30 minute Recruiter call.
• 60 minute call with Architect.

Career Growth & Opportunities:

• Work on core financial and identity services of a large international gaming platform.
• Hard technical problems in high-load distributed systems where correctness matters.
• Influence on architecture and engineering practices.
• A modern technology stack and a collaborative engineering culture.
• Professional growth opportunities.

Working Conditions:

— Vacation: 22 working days per year, plus official public holidays.

— Sick Leave:

*5 paid sick days annually (no certificate required).

*Up to 10 additional days covered at 100% with a valid medical certificate.

— Equipment: Personal budget for necessary hardware and tools.

Join our passionate and talented team and be at the forefront of transforming the iGaming industry with groundbreaking live tech solutions. If you’re a visionary professional eager to shape the future of iGaming, Atlaslive invites you to apply and drive our continued success in this dynamic market.

Atlaslive — The Tech Behind the Game.

*All submitted resumes undergo a thorough review. If we do not contact you within 5 business days after your application, it means that we are unable to proceed with your candidacy at this time. However, we appreciate your interest in our company and will keep your contact details on file for future opportunities.

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