Net API Developer

7 days ago

Greater Kolkata Area, India Atom Systems Full time ₹ 20,00,000 - ₹ 25,00,000 per year

Role Overview
We are seeking a highly experienced Backend .NET API Developer with strong expertise in designing and building secure, scalable APIs using the Microsoft .NET stack and hands-on experience with AWS DynamoDB. The ideal candidate will have experience delivering enterprise-grade backend solutions, and prior exposure to Medical Devices, Healthcare, or Pharmaceuticals will be considered a strong plus. This role will be pivotal in architecting and implementing robust backend services, integrating with internal and external systems, and ensuring security, performance, and scalability.

Key Responsibilities
API Development & Architecture :

  • Design, develop, and maintain RESTful and/or GraphQL APIs using .NET Core / ASP.NET Core.
  • Architect backend systems with scalability, performance, and maintainability in mind.
  • Integrate APIs with various data sources, including AWS DynamoDB, relational databases, and external services.

AWS DynamoDB Expertise

  • Hands-on experience designing table structures, indexes, and query patterns for high-performance workloads.
  • Implement DynamoDB best practices, including data modeling for scalability, TTL, streams, and backup/restore.
  • Optimize cost and performance for high-volume workloads.

Cloud & Infrastructure

  • Deploy, manage, and monitor services in AWS (Lambda, API Gateway, S3, CloudWatch, IAM, etc.
  • Collaborate with DevOps teams to implement CI/CD pipelines and automated deployments.

Collaboration & Leadership

  • Work closely with frontend developers, QA teams, and product managers to deliver features end-to-end.
  • Mentor junior developers, conduct code reviews, and enforce coding standards.
  • Participate in architectural discussions and technology selection.

Required Qualifications
Technical Skills :

  • 10+ years of professional software development experience.
  • Strong experience in .NET Core / ASP.NET Core, C#, and object-oriented programming.
  • Proven expertise in AWS DynamoDB (data modeling, performance tuning, and operational best practices).
  • Experience with AWS serverless services (Lambda, API Gateway, SQS/SNS, Step Functions).
  • Solid understanding of microservices architecture and distributed systems.
  • Proficient with relational databases (SQL Server, PostgreSQL) and ORM frameworks (Entity Framework).
  • Knowledge of secure API design (OAuth2, JWT, API rate limiting).

Other Skills

  • Excellent problem-solving and debugging skills.
  • Strong communication skills for cross-functional collaboration.
  • Ability to work in agile environments with distributed teams.

Preferred Qualifications

  • Experience with event-driven architectures (Kafka, Kinesis).
  • Experience with containerization (Docker, Kubernetes).
  • Familiarity with CI/CD using Azure DevOps, GitHub Actions, or AWS CodePipeline.
  • Background in regulated software development lifecycle (SDLC).
  • Prior experience in Medical Devices, Healthcare, or Pharmaceuticals domains.
  • Familiarity with compliance and quality standards (HIPAA, HL7/FHIR, FDA 21 CFR Part 11, GxP).
  • Exposure to FHIR/HL7 healthcare interoperability standards.

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