Senior .
NET Backend Developer – Sportsbook Platform (Remote, Europe) Full-time | Remote (Europe) | 100% B2B Contract | Salary DOEWe're looking for a Senior .
NET Backend Developer to join a high-impact engineering team building one of the most demanding real-time sportsbook platforms on the market.
If you're passionate about distributed systems, performance-driven backend engineering, and have experience working in sports betting or complex, event-based systems, this is the right opportunity.About the RoleYou'll be part of a remote-first team developing the core features that power a modern sportsbook, including trading engines, odds services, and high-availability APIs.
This role is hands-on and backend-focused — no frontend work involved — with a strong emphasis on scale, real-time processing, and clean architecture.What You'll Be DoingBuild high-performance services using .
NET Core 8/9Develop and maintain scalable RESTful and gRPC APIsWork with Microsoft Orleans for distributed application developmentIntegrate Apache Pulsar for real-time message streamingDesign performant data solutions using SQL Server and PostgreSQLOptimize systems for low latency, fault tolerance, and high concurrencyParticipate in Agile ceremonies and collaborate with developers, DevOps, and product managersReview code, ensure testing coverage, and contribute to improving development practicesTriage and resolve production issues in a fast-paced environmentWhat You Bring5+ years of experience working with .
NET (C#) in backend environmentsStrong understanding of distributed systems, messaging, and microservicesExperience with Microsoft Orleans or similar actor-based frameworksFamiliarity with Apache Pulsar, RabbitMQ, or KafkaProven experience with SQL databases, ORMs, and performance tuningSolid grasp of CI/CD, containerization (Docker/Kubernetes), and cloud platforms (Azure or AWS)Excellent written and spoken English communication skillsStrong troubleshooting skills and ability to work independently in a remote setupBonus Points ForDirect experience in sportsbook, betting, or trading system development — strongly preferredUnderstanding of betting mechanics, odds calculations, and market typesFamiliarity with compliance and uptime standards for gaming environmentsCertifications (Microsoft, AWS, etc.) or contributions to open-source projectsWhat We OfferLong-term engagement with a rapidly growing tech organizationFully remote setup within European time zones (flexible hours around CET)Competitive salary package depending on experience and locationB2B Contract | Equipment budget | Health insurance (where applicable)Learning & development budget, professional certificationsFast-paced, collaborative team culture with clear ownership and autonomy