See all roles

Senior Full Stack Engineer

Work from home Full-time role Hiring

ECS is seeking a highly skilled Senior Full Stack Engineer to work remote or in the Washington, DC metropolitan area with extensive experience in designing, building and maintaining large-scale API’s for enterprise level applications in support of the Department of Homeland Security. Tools necessary for excelling in this role include Java (with Maven, Gradle, etc), JavaScript Frontend frameworks (React, Angular, etc), Elastic and other data sources, and DevSecOps in the Cloud. This role will focus heavily on modernizing legacy systems with deprecated code bases, requiring both technical expertise and creative problem-solving abilities. You will play a critical role in rearchitecting our application’s API infrastructure, ensuring scalability, reliability and long-term maintainability.

Key Responsibilities:

  • Support the design and architecture of robust, scalable API’s for large enterprise level applications.
  • Integrate and operate CI/CD pipelines used for building and releasing code and container images.
  • Assess and refactor deprecated code bases implementing best practices for modernization and performance improvement.
  • Collaborate with engineers to integrate React-based user interfaces with scalable APIs, leveraging React expertise to enhance API interactions, support legacy system modernization, and ensure seamless functionality and optimal user experience.
  • Provide solutions for legacy system migration while minimizing system downtime and operational risks.
  • Identify and resolve technical debt in older systems while transitioning them to modern Java frameworks and tools.

Salary Range: $135,000 – $175,000

General Description of Benefits

Qualifications
  • Master’s degree in a relevant field
  • 12+ years’ work experience
  • Ability to pass a Public Trust background check
  • 8+ years with Java (8 and beyond) with strong experience in legacy system modernization.
  • Has successfully performed code refactoring of deprecated codebases, developed backward compatibility and technical debt reduction.
  • 3+ years of experience with Springboot or other stateless Java frameworks
  • 5+ years developing restful API design microservices and service-oriented architecture.
  • 3+ years of experience working with CI/CD pipelines and deploying and operating in cloud platforms
  • 5+ years’ experience with relational databases and ORM technologies, experience with ElasticSearch or Opensearch a plus.
  • 3+ years developing applications in a production setting and troubleshooting complex issues within legacy environments and proposing effective solutions.
  • Excellent communication skills with the ability to explain technical challenges and solutions to non-technical stakeholders.
apply to this job

You might like

Claims Resolution Specialist

Work from home Full-time role

Assistant Buyer, Men’s Denim

Work from home Full-time role

Director of Product Management – Harness Feature Management & Experimentation (FME)

Work from home Full-time role

Senior Product Designer II, Merchant Services

Work from home Full-time role

Manager, Software Engineering (AWS/Infrastructure/Platform Services)

Work from home Full-time role

Staff Developer Success Engineer, Dedicated

Work from home Full-time role

FTZ or Global Trade Data Integration Specialist

Work from home Full-time role

Director of Sales (Financial Services Team)

Work from home Full-time role

Channel Business Manager

Work from home Full-time role

Sales Development Representative

Work from home Full-time role

[Remote] Senior Product Marketing Manager

Work from home Full-time role

Criminal Investigator - Organized Crime Unit

Work from home Full-time role

Experienced Customer Care Specialist – Remote Opportunity for Exceptional Client Support Professionals in the US

Work from home Full-time role

Hiring Now: Require Curriculum Designer - Online Learning in Ybor

Work from home Full-time role

Content Designer, Unannounced Super Fun Video Game

Work from home Full-time role

US Registered Nurse - Remote

Work from home Full-time role

[Remote] ABM & Enterprise Marketing Manager

Work from home Full-time role

Walmart Data Entry Work From Home Jobs - No Experience Required

Work from home Full-time role

[Work From Home] Event Technician, Audio Visual

Work from home Full-time role

Senior Machine Learning Engineer I // II

Work from home Full-time role