Senior .NET Backend Developer (AWS Serverless & Kafka)

This role is for one of the Weekday's clients Min Experience: 7+ years Location: Remote (India) JobType: full-time We’re looking for an experienced Senior .NET Developer to take ownership of our backend services including core Lambda functions, shared Ometria client library, Kafka producer logic, and backfill tooling. This is a hands-on engineering role requiring strong backend skills and deep experience with AWS serverless architecture. What You’ll Do Build, deploy, and maintain AWS Lambda services using .NET. Develop and optimize serverless applications with best-in-class error handling, observability, and performance. Integrate with third-party REST APIs (including pagination, retries/backoff, rate limiting, and secure authentication). Implement Kafka producers with robust message delivery guarantees. Own and evolve AVRO schemas, Schema Registry integration, and contract-first design. Design and operate DynamoDB tables for state persistence, configuration storage, and application workflows. Collaborate with cross-functional teams to deliver high-quality, scalable backend systems. Must-have skills .NET, AWS Lambda, KAFKA Good-to-have skills AVRO & Schema Registry, REST API Integrations, Amazon Dynamodb