Backend.Net Developer

Join to apply for the Backend .Net Developer role at BrainRocket. Location: Valencia, Spain. This is an on‑site role. No remote or hybrid work. The company assists with the relocation process if your location differs from the required. BrainRocket is a global company creating end‑to‑end tech products for clients across Fintech, iGaming, and Marketing. We are looking for an experienced Backend .NET Developer to join our dynamic team. You will be working on a new project that is less than a year in development. Development and Integration Design, develop, and maintain scalable backend services. Build and optimize HTTP‑based APIs. Focus on seamless integrations to ensure efficient communication within distributed systems. Work with a variety of databases, including SQL and NoSQL solutions. Ensure smooth deployment of services using Docker images into Kubernetes environments. Collaboration and Problem Solving Optimize system performance, ensuring reliability, scalability, and low‑latency operations. Collaborate to identify and resolve technical challenges effectively across microservices. Work closely with Product Owners, Architects, and DevOps engineers in a fast‑paced environment. Participate in code reviews and advocate for best coding practices to ensure high‑quality deliverables. Stay updated with industry trends and adopt new technologies when appropriate. Qualifications At least 5+ years of experience in backend development using C# and .NET Core. Strong understanding of building and optimizing RESTful APIs and GraphQL services. Experience working with both SQL (e.g., MySQL, ClickHouse) and NoSQL databases (e.g., MongoDB, Elasticsearch, Redis). Proficiency in event‑driven architecture and messaging systems such as Kafka, NATS, or RabbitMQ. Hands‑on experience with building Docker images and deploying them into Kubernetes. Experience with services on AWS cloud infrastructure. Good knowledge of microservices architecture and distributed systems. Experience with Git version control systems. Good practical grasp and experience with writing unit and integration tests. Ability to troubleshoot, debug, and optimize performance in high‑throughput systems. Upper‑intermediate level of English. Nice to Have Ability to develop in Node.js is a big plus. Experience working in a company with established processes. Experience working with Kibana, Grafana and other APM tools. Benefits Learning and development opportunities and interesting challenging tasks. Relocation package (tickets, staying in a hotel for 2 weeks). Opportunity to develop language skills, with partial compensation for the cost of Spanish classes. 23 working days of annual vacation and an additional 6 paid sick days. Competitive remuneration level with annual review. Bold moves start here. Make yours. Apply today Referrals increase your chances of interviewing at BrainRocket by 2x. Get notified about new .Net Developer jobs in Valencia, Valencian Community, Spain. Seniority level: Mid‑Senior level. Employment type: Full‑time. Job function: Information Technology. Industries: Software Development and Gambling Facilities & Casinos. #J-18808-Ljbffr