Lead API Developer C2C jobs Santa Clara , CA–Day1onsite

Job Summary

We are looking for a skilled API Developer to design, develop, and maintain secure, scalable, and high‑performance APIs using the Microsoft .NET technology stack & Python. The ideal candidate will have strong hands-on experience with API development, cloud technologies, and modern architectural patterns.

Strong exp in React js needed

 

Key Responsibilities

Design, develop, and maintain RESTful APIs using .NET/.NET Core and Python .

Implement clean, scalable, and maintainable code following best practices.

Integrate APIs with databases, third‑party systems, and internal applications.

Create and manage API documentation (Swagger/OpenAPI).

Develop unit tests, perform debugging, and optimize API performance.

Work closely with product, QA, and DevOps teams to deliver features on time.

Ensure security, authentication, and authorization (JWT, OAuth, API keys, etc.).

Participate in code reviews and contribute to continuous improvement.

 

Bachelor’s degree in Computer Science, Engineering, or related field.

Proven experience with:

C# and .NET/.NET Core   – MUST HAVE

Python – good to have

REST API development

Entity Framework / EF Core

SQL Server or other relational databases

Asynchronous programming

API versioning and documentation

Strong understanding of:

Software design patterns

Microservices architecture (preferred)

CI/CD tools (Azure DevOps, GitHub Actions, Jenkins, etc.)

Cloud platforms (Azure/AWS) – nice to have

Must have used one of the Gen AI tools to generate the viz. Cursor.io, Windsurf or Claude code or copilot

Familiarity & skilled in prompt engineering

Preferred Qualifications

Experience with message queues (Azure Service Bus, RabbitMQ, Kafka).

Knowledge of Docker/Kubernetes.

Familiarity with logging and monitoring tools (Serilog, ELK, App Insights).

Exposure to Agile/Scrum methodologies.

Soft Skills

Strong problem-solving and analytical skills.

Excellent communication and teamwork abilities.

Ability to work independently and manage multiple tasks.