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Senior AppDev Engineer

Arlington, VA
Permanent
Indent : PSL(phone number removed)-2
Role : Senior AppDev Engineer
Location : Remote
Salary : $130k $135k

Focus: API layer, streaming responses, template management, dummy UI
We are looking for a Senior AppDev Engineer to design and build scalable, serverless application layers on AWS. The role emphasizes API design, real time/streaming responses, and lightweight UI integration.
Responsibilities
  • Design and build REST and streaming APIs using Python on AWS Lambda
  • Implement API Gateway (REST, WebSocket, SSE/HTTP streaming)
  • Define OpenAPI specs and strong request/response contracts
  • Build resilient systems with proper error handling (retries, timeouts, circuit breakers)
  • Design DynamoDB tables and access patterns
  • Develop a dummy UI using React or Next.js for demos and validation
  • Provide technical ownership and mentor engineers
Must Have
  • 7+ years of software engineering experience
  • Python, AWS Lambda, API Gateway
  • Streaming patterns: WebSocket, SSE, chunked responses
  • DynamoDB (data modeling, TTL, encryption)
  • OpenAPI design and documentation
  • React or Next.js
  • Strong understanding of reliability and resilience patterns

Job Type: Permanent

Job ID: 253251719