Full Stack Engineer - Mid-Level / Hybrid / Active Top Secret

Peraton; Virginia (IL); Hybrid; USD 110,000 - 170,000; Full time

Job summary

Peraton is seeking a Mid-level Full‑Stack Engineer to join our Federal Strategic Cyber program in Arlington, VA. You’ll build modern frontend applications with Angular and TypeScript, while collaborating with backend teams on API contracts and occasional Java/Python tasks. The role requires U.S. citizenship and an active Top Secret/SCI eligibility background.

You’ll work in a hybrid setup, with on-site presence as needed, and contribute to mission-critical tools used by federal cyber operations.

Qualifications

• Bachelor's degree in Computer Science or related field; 5+ years of software engineering with degree, or 9+ years without.
• Strong frontend development with JavaScript/TypeScript and Angular.
• Solid HTML5/CSS3, and frontend tooling (NPM).
• Experience consuming RESTful APIs; occasional backend tasks with Java or Python.
• Familiarity with cloud services and AI/ML; basic cybersecurity concepts.
• U.S. Citizenship required; Active Top Secret with SCI eligibility; DHS background check.

Responsibilities

• Design, build, and maintain frontend applications using Angular, TypeScript, and modern web frameworks.
• Lead development of custom web apps with polished UIs that meet mission needs.
• Architect scalable frontend solutions including components, state management, and responsive design.
• Support AI-driven interfaces and analytics dashboards via frontend.
• Collaborate with backend teams on API contracts; occasional Java/NodeJS work as needed.
• Tackle cross-browser performance, multi-environment deployments, and produce technical docs.

Skills

JavaScript/TypeScript

Angular

REST APIs

Java

Python

DevOps tools (JIRA/Jenkins/Git)

Cloud services

AI/ML familiarity

Cybersecurity concepts

U.S. Citizenship

DHS background check eligibility

Education

Bachelor's degree in Computer Science or related field

5+ years of software engineering experience (or 9+ years without a degree)

Tools

Kubernetes

GitLab CI/CD

Cypress

Jest

Playwright

Git

Job description

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 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.