Senior Backend Engineer

2 weeks ago

New Delhi, India Astek Middle East Full time

We are hiring a Senior Backend Engineer (C#/.NET, Microservices) to scale and strengthen our mission-critical healthcare and procurement platforms. You will join our team to design, build, and operate secure, event-driven microservices and APIs, ensuring performance, reliability, and seamless integration across our systems. This is a full remote role where you’ll collaborate with talented engineers, product owners, and business stakeholders to deliver solutions that truly make an impact.Responsibilities- Design and implement ASP.NET Core Web APIs (REST/GraphQL) and background workers. - Build event-driven services with Kafka: producers/consumers, idempotent processing, retry/DLQ strategies. - Apply DDD & clean architecture principles; ensure code is modular, maintainable, and testable. - Own data workflows: EF Core, SQL Server, transactions, migrations, and performance tuning. - Implement robust integration patterns: transactional outbox/inbox, correlation IDs, distributed tracing. - Integrate with Ultimus BPM for workflow automation and human task orchestration. - Add observability with Serilog, metrics, and distributed tracing (Elastic/Kibana). - Champion security and reliability practices (rate limiting, input validation, OWASP ASVS). - Contribute to automated testing (unit/integration/contract, load/performance) and code reviews. - Collaborate with frontend, DevOps, product, and business stakeholders.Requirements- 5+ years backend engineering experience, with 2+ years in .NET Core/ASP.NET Core in production. - Strong knowledge of microservices patterns (saga, outbox/inbox, circuit breaker, retries, idempotency). - Solid Kafka expertise: topics, partitions, consumer groups, offset management. - Deep SQL experience: query plans, indexing, transactions, isolation levels, EF Core. - Experience with on-prem Kubernetes: containers, networking, scaling, health/readiness probes. - Proven observability practices: logs, metrics, tracing, diagnostics, performance profiling. - Strong security mindset: API hardening, secrets management, least privilege. - Familiarity with CI/CD pipelines (Azure DevOps Server, Git) and code quality tools (SonarQube). - Excellent communication and documentation skills.Nice to have: Redis, Nginx, GraphQL, SignalR, event sourcing, CQRS, performance engineering at scale.ONLY CANDIDATES WITH THE REQUIRED SKILLS AND EXPERIENCE SHOULD APPLY

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