Senior Full Stack Java Developer

ZipStaff Inc.; Washington (District of Columbia); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Health Insurance

Dental Insurance

Vision Insurance

401(k) + 401(k) matching

Paid time off

Referral Program

Job summary

ZipStaff Inc. is seeking a Senior Full Stack Developer / Engineer to design, develop, and maintain high-performance microservices and modern web apps using Java, Angular, and AWS in Washington, DC on-site.

You will own end-to-end feature delivery, CI/CD pipelines, and observability, collaborating with teams and leveraging AWS services and GitHub tooling to drive quality and speed.

Qualifications

• 5+ years of full-stack software engineering experience.
• Proficient in Java, Angular, and Python.
• Experience with Spring Boot microservices and AWS.
• On-site in Washington, DC.

Responsibilities

• Architect, develop, and deploy scalable microservices and RESTful APIs.
• Build responsive frontend interfaces with Angular.
• Create serverless and containerized AWS apps using Lambda, ECS, and DynamoDB.
• Manage CI/CD pipelines with Jenkins, GitHub Actions, or CodePipeline.
• Ensure observability and performance with monitoring tools.
• Collaborate using GitHub for version control.

Skills

Angular

Java

Python

Full-stack

Tools

Spring Boot

AWS

DynamoDB

API Gateway

Lambda

ECS

SQS

SNS

EventBridge

VPC

Secrets Manager

Job description

Job Title: Senior Full Stack Developer / Engineer – Java / Angular / AWS.

Location: Washington, DC (On-site).

Employment Type: Contract (W2 through ZipStaff — No C2C or 1099).

About the Opportunity

ZipStaff is seeking an experienced Senior Full Stack Developer / Engineer (Java / Angular / AWS) to join a high-impact team for a major transportation organization.

In this role, you will design, develop, and maintain high-performance microservices and modern web applications while leveraging AWS cloud services and event-driven architectures. You will take end-to-end ownership of full-stack feature delivery, automated CI/CD pipelines, and application observability.

What You’ll Do

• 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 utilizing Lambda, ECS, DynamoDB, and EventBridge.
• Configure and support core AWS infrastructure, including API Gateway, SQS, SNS, VPC, and Secrets Manager.
• Implement event-driven architectures and messaging systems to ensure seamless asynchronous processing.
• Automate continuous integration and continuous deployment (CI/CD) pipelines using Jenkins, GitHub Actions, or AWS CodePipeline.
• Monitor, troubleshoot, and optimize application performance and observability using Dynatrace and enterprise tooling.
• Collaborate using GitHub for version control and leverage AI tools like GitHub Copilot to enhance development efficiency.

Required Qualifications

• 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 in Spring Boot microservice development and RESTful API design.
• Demonstrated experience with core AWS services, including AWS Lambda, DynamoDB, and Amazon ECS.
• Practical knowledge of AWS networking and application services (API Gateway, SQS, SNS, VPC, EventBridge, 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.

Preferred Qualifications

• 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 work with observability tools beyond basic monitoring.

Benefits

• Health Insurance.
• Dental Insurance.
• Vision Insurance.
• 401(k) + 401(k) matching.
• Paid time off.
• Referral Program.

About ZipStaff

ZipStaff partners with leading organizations to connect skilled technology professionals with high-impact contract opportunities. We focus on quality matches, clear communication, and long-term success for candidates and clients.