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Peraton

Runs and secures technology for federal agencies

Mid-Level Full Stack Engineer

Frontend EngineeringConfirmed live in the last 24 hours
Full-timeArlington County, Arlington, VA, USA

About the Job

Requirements

  • A bachelor's degree and at least 5 years of software engineering experience, or at least 9 years of experience without a degree.
  • Strong, demonstrable expertise in frontend development using JavaScript, TypeScript, Angular, and modern web frameworks.
  • A solid understanding of HTML5, CSS3, and frontend build tooling such as NPM or similar tools.
  • Hands-on experience consuming and integrating RESTful APIs.
  • Working knowledge of Java or Python for occasional backend tasks and cross-functional collaboration.
  • Experience with DevOps tools such as JIRA, Jenkins, and Git.
  • Familiarity with cloud services and emerging technologies such as artificial intelligence and machine learning.
  • Understanding of cybersecurity concepts as they apply to web application development.
  • U.S. citizenship is required.
  • An active Top Secret security clearance with SCI eligibility is required, along with the ability to obtain and maintain a DHS background investigation.

Responsibilities

  • Design, build, and maintain high-quality frontend applications using Angular, TypeScript, and modern web frameworks as the primary focus.
  • Lead development of custom web applications with polished, performant user interfaces that evolve with mission needs.
  • Architect and implement scalable frontend solutions, including component libraries, state management, and responsive design patterns.
  • Support integration of emerging technologies, including AI-driven interfaces and advanced analytics dashboards surfaced through the frontend.
  • Collaborate with backend teams on API contracts and integration points, with occasional hands-on work in Java or Node.js as mission needs arise.
  • Solve challenges involving cross-browser compatibility, frontend performance optimization, and multi-environment deployments.
  • Work in an Agile environment, adapting to shifting priorities and collaborating across teams.
  • Troubleshoot UI/UX issues, enhance application performance, and produce clear technical documentation.

Desired Qualifications

  • Deep expertise with the Angular and/or React framework, including advanced patterns such as lazy loading, custom directives, and reactive forms.
  • Experience with container orchestration platforms such as Kubernetes and related infrastructure tooling.
  • Familiarity with CI/CD pipeline configuration and management, such as GitLab CI/CD.
  • Experience with frontend test automation frameworks such as Cypress, Jest, or Playwright.
  • Experience in a SAFe Agile environment.

About the Company

Peraton

Runs and secures technology for federal agencies

Peraton builds and runs secure technology for American defense, intelligence, space, and civilian agencies, from military networks to satellite ground stations. In 2025, the Federal Aviation Administration chose it to manage the overhaul of the nation's air traffic control system, replacing copper wiring with fiber and upgrading radar and radios. Its engineers, many holding security clearances, run and defend agency networks and data centers, write mission software, and operate space and communications systems, and agencies pay for this work through multiyear contracts. Peraton was formed in 2017, when private-equity firm Veritas Capital bought Harris Corporation's government IT business, and is based in Reston, Virginia.

Company size
10,001+
Company stage
Grant
Total funding
$60M
Headquarters
Reston, VA
Founded
2017

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