BackEnd Developer (API Engineering)
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Summary
Backend developer at HCLTech building and operating production REST APIs in Node.js and TypeScript on AWS serverless services (Lambda, API Gateway, DynamoDB, S3). The role emphasizes strong API design, testing discipline (Jest/Mocha), daily use of AI-assisted coding tools, and infrastructure-as-code with CDK/CloudFormation.
- 5+ years building and operating production REST APIs in Node.js & TypeScript
- Hands-on AWS serverless experience — Lambda, API Gateway, DynamoDB, S3, CloudWatch, IAM, SNS, SQS, Glue, ECS — built and run in production, not just in tutorials
- Strong REST API design skills — resource modeling, HTTP semantics, versioning, idempotency, and OpenAPI/Swagger contract authoring
- Daily proficiency with AI-assisted coding tools — GitHub Copilot, Claude, Cursor, or similar — using them to accelerate development while owning every line committed
- Solid testing discipline — writes tests as part of development using Mocha/Chai/Sinon or Jest, targets 80%+ coverage across branches, functions, and lines
- Product mindset — understands the business impact of the APIs they build, thinks about consumer experience, reliability, and value delivery — not just technical correctness
- Familiar with security patterns in regulated environments — encrypted secrets, least-privilege IAM, input validation, private networking
- Experience with AWS CDK or CloudFormation for infrastructure-as-code is a strong plus
- Financial services domain background is a plus
