Java Full Stack Engineer - Professional

HEXAWARE • United States,

3d

About The Position

Seeking a Senior Software Engineer (Developer 3) for the API Platform on the API Ecosystem team. This role focuses on solving problems and learning quickly while designing and building scalable backend services and APIs, contributing to API gateway capabilities, and supporting full-stack development. The position requires work from a supplier delivery center; workers must not work from an FNMA office location. Candidates should be submitted according to the negotiated rate card based on the supplier-determined site designation.

Requirements

• Proficiency in Java (versions 8–21) or Python, along with JavaScript/TypeScript.
• Experience with DevOps practices, GitHub or GitLab, CI/CD pipelines, and Terraform.
• Hands-on experience with AWS services including EC2, ECS, EKS, Lambda, S3, IAM, CloudFormation, Route53, and CloudWatch.
• Strong software engineering fundamentals and knowledge of RESTful APIs, microservices, and distributed systems.
• Deep understanding of the API lifecycle, including design, versioning, security, throttling, and analytics.
• Strong knowledge of authentication and authorization, including OAuth 2.0, JWT, mTLS, and API key management.
• Knowledge of load balancing, caching strategies, high availability, and disaster recovery design.
• Proficiency with relational and NoSQL databases.
• Experience collaborating with cross-functional teams in Agile/Scrum environments.

Nice To Haves

• Experience or exposure to API management platforms, particularly Apigee OPDK or Apigee X/Hybrid.
• Experience or exposure to OpenAPI/Swagger and GraphQL.
• Familiarity with monitoring and observability tools such as OpenTelemetry (OTEL) or Splunk.

Responsibilities

• Design and build scalable backend services and APIs.
• Contribute to API gateway capabilities and full-stack development.
• Collaborate with Product, Architecture, DevOps, and Security teams in Agile/Scrum environments.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed