Senior Full Stack Java Developer

ZipStaff•Washington, DC

1d•Onsite

About The Position

ZipStaff is seeking an experienced Senior Full Stack Developer / Engineer to join a high-impact team for a major transportation organization. The role involves designing, developing, and maintaining high-performance microservices and modern web applications using Java, Angular, and AWS cloud services, including event-driven architectures. The developer will own full-stack feature delivery, automated CI/CD pipelines, and application observability. This is an on-site contract position in Washington, DC, with employment through ZipStaff on a W2 basis; C2C and 1099 arrangements are not accepted.

Requirements

At least 5 years of full-stack software engineering experience.
High proficiency in Angular and modern web technologies.
Strong programming foundation in Java and Python.
Extensive hands-on experience developing Spring Boot microservices and designing RESTful APIs.
Demonstrated experience with AWS Lambda, DynamoDB, and Amazon ECS.
Practical knowledge of AWS API Gateway, SQS, SNS, VPC, EventBridge, and Secrets Manager.
Working knowledge of CI/CD pipelines, event-driven architectures, and messaging systems.
Experience with GitHub, version control workflows, and monitoring tools such as Dynatrace.
Ability to work on-site in Washington, DC.

Nice To Haves

Experience with Adobe Experience Manager (AEM), Adobe tools, GitHub Copilot, or Ionic.
Prior full-stack delivery in a large enterprise or transportation environment.
Background building event-driven and serverless architectures on AWS.
Hands-on experience with observability tools beyond basic monitoring.

Responsibilities

Architect, develop, and deploy scalable microservices and RESTful APIs using Java and Spring Boot.
Design and build responsive, user-friendly frontend interfaces using Angular.
Build and maintain serverless and containerized cloud applications on AWS using Lambda, ECS, DynamoDB, and EventBridge.
Configure and support AWS infrastructure and application services, including API Gateway, SQS, SNS, VPC, and Secrets Manager.
Implement event-driven architectures and messaging systems for asynchronous processing.
Automate CI/CD pipelines using Jenkins, GitHub Actions, or AWS CodePipeline.
Monitor, troubleshoot, and optimize application performance and observability using Dynatrace and enterprise tooling.
Use GitHub for version control and leverage tools such as GitHub Copilot to improve development efficiency.
Deliver full-stack features end to end.