External Job Posting Title Full Stack Engineer - Mid-Level / Hybrid / Active Top Secret

Peraton; Arlington (VA); Hybrid; USD 86,000 - 138,000; Full time

Job summary

Peraton is seeking a Mid-level Full-Stack Engineer to join our Federal Strategic Cyber program in Arlington, VA, on a hybrid schedule with on-site presence as needed. You will build modern, mission-critical applications from front to back and contribute to tools used by federal cyber operations.

Responsibilities include frontend work with Angular and TypeScript, collaborating with backend teams on API contracts, and ensuring performance, cross-browser compatibility, and secure design.

Qualifications

• Bachelor's degree and 5+ years of software engineering experience (or 9+ years without a degree).
• Strong, demonstrable expertise in frontend development using JavaScript/TypeScript, Angular, and modern web frameworks.
• Solid understanding of HTML5, CSS3, and frontend build tooling (e.g., NPM, or similar).
• Hands-on experience consuming and integrating RESTful APIs.
• Working knowledge of Java or Python for occasional backend tasking and cross-functional collaboration.
• Experience with DevOps tools such as JIRA, Jenkins, and Git.
• Familiarity with cloud services and emerging technologies such as AI/ML.
• Understanding of cybersecurity concepts as they apply to web application development.
• U.S. Citizenship required.
• Active Top Secret security clearance with SCI eligibility.

Responsibilities

• Design, build, and maintain high-quality frontend applications using Angular, TypeScript, and modern web frameworks as the primary focus of your work.
• Lead the 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 the 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 NodeJS as mission needs arise.
• Solve complex challenges involving cross-browser compatibility, frontend performance optimization, and multi-environment deployments.
• Work in an Agile environment, adapting quickly to shifting priorities and collaborating across teams.
• Troubleshoot UI/UX issues, enhance application performance, and produce clear technical documentation.

Skills

JavaScript

TypeScript

Angular

REST APIs

HTML5/CSS3

UI frameworks

Agile

Cloud services

Backend basics

Security concepts

Education

Bachelor's degree

Tools

JIRA

Jenkins

Git

Job description

Responsibilities

Peraton is seeking a Mid-level Full‑Stack Engineer to join our Federal Strategic Cyber program—an environment where your engineering expertise directly strengthens national security. In this role, you’ll build modern, mission‑critical applications from front to back, contributing to tools used by federal cyber operations.

Location: Arlington VA. Hybrid schedule; on-site presence as needed.

What You'll Do:

• Design, build, and maintain high-quality frontend applications using Angular, TypeScript, and modern web frameworks as the primary focus of your work.
• Lead the 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 the 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 NodeJS as mission needs arise.
• Solve complex challenges involving cross-browser compatibility, frontend performance optimization, and multi‑environment deployments.
• Work in an Agile environment, adapting quickly to shifting priorities and collaborating across teams.
• Troubleshoot UI/UX issues, enhance application performance, and produce clear technical documentation.

#CISA

Qualifications

Minimum Requirements Are:

• Bachelor's degree and 5+ years of software engineering experience (or 9+ years without a degree).
• Strong, demonstrable expertise in frontend development using JavaScript/TypeScript, Angular, and modern web frameworks.
• Solid understanding of HTML5, CSS3, and frontend build tooling (e.g., NPM, or similar).
• Hands‑on experience consuming and integrating RESTful APIs.
• Working knowledge of Java or Python for occasional backend tasking and cross‑functional collaboration.
• Experience with DevOps tools such as JIRA, Jenkins, and Git.
• Familiarity with cloud services and emerging technologies such as AI/ML.
• Understanding of cybersecurity concepts as they apply to web application development.
• U.S. Citizenship required.
• Active Top Secret security clearance with SCI eligibility.
  • Must have the ability to obtain and maintain a DHS background investigation.

Preferred Requirements:

• 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 (e.g., GitLab CI/CD).
• Experience with frontend test automation frameworks (e.g., Cypress, Jest, Playwright).
• Experience in a SAFe Agile environment.

Peraton Overview

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure.

Target Salary Range

$86,000 - $138,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.

EEO

EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.