External Job Posting Title Full Stack Engineer

Peraton; Virginia, Northern (IL, KY); Hybrid; USD 130,000 - 216,000; Full time

Job summary

Peraton is hiring a Software Development Subject Matter Expert. This role can be remote and supports the full software development lifecycle using current methodologies to include Agile, DevOps, and continuous deployment.

You will apply deep expertise in Python, FastAPI, React, REST/GraphQL, Docker, and PostgreSQL to design, build, test, and deploy secure software for government programs. You will collaborate with government product owners and cross‑functional teams to translate user needs into

Qualifications

• Education: BS/BA with strong technical focus; 12 years with BS/BA; 10 years with MS; 7 years with PhD

Responsibilities

• Provide software development expertise across the full SDLC including CD, Agile, and DevOps.
• Design, develop, document, test and debug applications software.
• Develop web UIs using ReactJS.
• Build XML samples and XSDs based on requirements.
• Collaborate on UX/UI designs to translate concepts into components.
• Analyze user needs and feasibility within time and cost constraints.
• Coordinate testing and deployment to meet specifications.
• Assist Scrum Master and team with technical expertise.

Skills

Python

FastAPI

React

PostgreSQL

REST APIs

GraphQL

Docker

LLM APIs

Security best practices

Agile/Scrum

Education

BS/BA in CS/CE or related

Tools

Docker

Kubernetes

Git

Job description

Responsibilities

Peraton is hiring a Software Development subject Matter Expert, this role will have the ability to be remote.

What you’ll do:

• Provide software/Java development expertise in an environment that covers the entire Software Development Lifecycle using current methodologies to include Continuous Deployment, Agile, and Development Operations (DevOps).
• Designs, develops, documents, tests and debugs applications software.
• Develop and implement user interfaces for web applications using ReactJS.
• Build and develop XML Samples and appropriate XSD based on requirements and an understanding of the various standards for design and data analysis and exchange.
• Work on UX/UI designs to translate concepts into functional components.
• Conducts multidisciplinary research and collaborates with cross-functional engineering and development teams in the planning, design, development, and utilization of Cloud-based capabilities for the development, modification, and deployment of commercial-of-the-shelf (COTS) software.
• Analyzes user needs and software requirements to determine feasibility of design within time and cost constraints.
• Confers with systems analysts, engineers, and cross-functional teams to design software and to obtain information on project limitations and capabilities, performance requirements and interfaces.
• Designs, develops and modifies software systems, using scientific analysis and mathematical models to predict and measure outcomes and consequences of design.
• Coordinates software testing and deployment to ensure specifications are met.
• Assist the Scrum Master and Scrum Team in providing technical expertise in executing contract deliverables.
• Provide support to the Chief Enterprise Architect, Release Train Engineer, Senior Leadership and the client with regards to software development best practices.
• Support Quality Assurance and Quality Control verification within all applicable phases of software development to assure all actions are completed in accordance with appropriate policy, standards and procedures.
• Collaborate with government Product Owners, cross-functional teams, and client vendors to support rapid integration and interoperability of software.
• Ensure the quality of all services and deliverables across the contract.
• Ensure high customer satisfaction and compliance with all government and corporate policies.

Qualifications

Minimum Requirements:

• Education: Minimum of 12 years with BS/BA; Minimum of 10 years with MS/MA; Minimum of 7 years with Ph.D.
• Clearance: active secret clearance
• Hands-on experience building with AI agents — multi-step reasoning, tool use, RAG pipelines, or autonomous task execution — and integrating LLMs into production or near-production applications
• Demonstrated experience designing and building integrations to external sources of information — public APIs, licensed data feeds, partner systems, customer enterprise systems, web content, document repositories, or structured databases
• Demonstrated experience packaging external capabilities as agent tools or skills with clean interfaces, predictable inputs and outputs, sound error handling, and documentation that AI agents and the humans configuring them can rely on
• Strong Python skills (3.12+); comfort with async/await patterns, type hints, and modern Python tooling
• Comfort working across the stack: FastAPI/Python backends, React frontends, Docker containerization, and PostgreSQL
• Experience building and consuming web APIs (REST, GraphQL, or comparable) and handling the integration concerns that make external data trustworthy in production — authentication, pagination, rate limiting, retry/backoff, schema mapping, deduplication, and caching
• Experience with workflow or task orchestration systems (Airflow, Prefect, Celery, or similar distributed execution frameworks) or comparable agent orchestration patterns
• Familiarity with agentic frameworks and an understanding of the underlying concepts (chains, tool calling, agent loops) that transfer across tools
• Experience working with LLM APIs (OpenAI, Anthropic, AWS Bedrock, or similar)
• Solid grounding in the security concerns specific to agentic and external integration work — secrets management, OAuth and API-key handling, rate-limit etiquette, defensive parsing, and prompt-injection awareness
• A product mindset: you think about the end user, not just the technical implementation
• Comfort operating with some ambiguity in a fast-moving 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

$135,000 - $216,000. 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.