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Senior Full Stack Software Engineer with Security Clearance

CSGFairfax, VA🇺🇸United StatesPosted 31 Aug 2026

Why This Role Stands Out

This hybrid role offers a fantastic opportunity to design and build cutting-edge agentic AI solutions with a focus on security and extensibility. You'll thrive here if you're a seasoned full-stack engineer with experience in Python/Rust, AI frameworks, and cloud technologies, eager to mentor others and contribute to a reputable company. Apply now to advance your career in a dynamic and innovative environment.

Quick Overview

Seniority
Mid Senior
Employment type
Employee
Work mode
Hybrid
Location
Fairfax, VA, United States
Posted
19 hours ago
DockerMicroservicesRustAWSMLflowOWASPAzureCSSGPTGrafanaHTMLJUnitJavaJavaScriptKubernetesLLMPrometheusPythonRESTReactReduxTerraformTypeScriptpytest

Job Description

Key Responsibilities

  • Design, build, and maintain full-stack features across the iMBSE platform, including user-facing web applications, orchestration APIs, and backend microservices.
  • Develop and deploy agentic AI solutions, such as LLM-driven workflows, RAG (Retrieval-Augmented Generation) services, and autonomous chat agents.
  • Collaborate cross-functionally with product owners, domain experts, and other engineers to deliver extensible and secure solutions supporting MBSE workflows.
  • Contribute to system architecture, ensuring well-defined interfaces, low coupling, and future extensibility.
  • Ensure compliance with DevSecOps best practices, leveraging CI/CD pipelines and automated testing, security scanning, and cloud-native tooling (see “Our Tech Stack” below).
  • Mentor junior engineers and champion engineering excellence through code reviews, design discussions, and knowledge sharing Minimum Qualifications:
  • BS 10-12, MS 8-10, PhD 5-7
  • Bachelor’s or Master’s degree in Computer Science, Engineering, or a closely related field. 5+ years of professional software engineering experience, including significant full-stack development.
  • Extensive hands-on experience with Python and/or Rust in production environments.
  • Proven track record building, deploying, and scaling agentic AI solutions (LLM agents, RAG pipelines, etc.) using frameworks such as LangChain, LlamaIndex, or similar.
  • Proficiency with modern frontend technologies (React, Redux, JavaScript/TypeScript, HTML/CSS) and contemporary backend architectures (REST APIs, microservices).
  • Strong understanding of cloud infrastructure and platforms (AWS, Azure, Kubernetes, Docker). Experience developing and maintaining CI/CD pipelines (GitLab, Docker, Maven), and automated testing frameworks (pytest, JUnit).
  • Solid grasp of secure coding practices and DevSecOps workflows Ability to obtain/maintain Secret Clearance.

Preferred Qualifications

  • Experience integrating with engineering and MBSE tools (e.g., Cameo Systems Modeler, Teamwork Cloud).
  • Familiarity with storage architectures (graph DBs, relational DBs, blob storage), API-driven platforms, and event-driven workflows.
  • Experience with AI model orchestration (e.g., LLM/embedding model lifecycle, logging, compliance, RBAC).
  • Knowledge of system observability tools (Prometheus, Grafana) and automated monitoring/alerting. Exposure to state-of-the-art LLMs (OpenAI GPT-4, Meta Llama 3, etc.) and related AI APIs
  • Technology and Tools
  • The ideal candidate should demonstration proficiency in the following technologies:
  • Languages: Python, Rust, Java, JavaScript (React/Redux) Cloud/Infrastructure: AWS, Azure, Kubernetes, Docker, Terraform DevSecOps: GitLab, Maven, Semgrep, yGuard, OWASP Testing/Observability: pytest, JUnit, Jacoco, OTel, Grafana Stack, MLflow
  • AI/ML: GPT models, Claude models, Embedding Models, LangChain, LlamaIndex, MCP
  • MBSE/Domain: Cameo Systems Modeler, Teamwork Cloud, SysML v1 and v2

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