Full Stack Software Engineer III Security Clearance

Position: Full Stack Software Engineer III with Security Clearance
Job Description SALARY RANGE $209,000 - $266,000/year DUTIES As a successful candidate for the Full Stack Software Engineer III position on ATPG's Endpoint Snapshots (ES) team, you will thrive in a rapid development and deployment environment as a high-caliber full-stack engineer. You will react swiftly to emergent mission opportunities, designing and deploying new capabilities under tight time frames. You will provide end-to-end support to a cross-functional team automating critical solutions across the entire software stack, including user interfaces, middleware, databases, analytics, and cloud architectures.

You will collaborate closely with teammates and partners to modernize legacy infrastructure and scale future capabilities, leveraging cutting-edge automation and AI-assisted development tools to deliver actionable insights that accelerate mission success. Required Skills SKILLS
* Develop end-to-end full-stack solutions, including user interfaces, REST middleware, databases, and analytics to support the ES team's mission

* Automate new opportunities and capabilities to be seamlessly leveraged by CNO and its partners

* Maintain and update existing front-end interfaces utilizing JavaScript, HTML/CSS, Bootstrap, and jQuery, while preparing to migrate future front-ends to modern UI libraries like React, Angular, or Vue

* Optimize existing backends using Python, Asyncio, and Pandas, and occasionally perform updates to legacy Java Map/Reduce and GHOST MACHINE analytics

* Manage and deploy services within existing infrastructure environments using MACHINE SHOP, Docker, Nginx, and Git Lab CI/CD, while planning expansions into C2S and HCI

* Utilize AI-assisted development tools such as Claude Code, Codex, and Open Code to accelerate code delivery and enhance team development velocity QUALIFICATIONS Twelve (12) years' experience as a SWE in programs and contracts of similar scope, type, and complexity is required. A Bachelor's degree in Computer Science or a related discipline from an accredited college or university is required. Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor's degree.

Additional Requirements:

* Experience with successful software development on NSANet, demonstrating familiarity with the environment ecosystems such as MACHINE SHOP, C2S, or GHOST MACHINE

* Production-grade software development experience in Python and JavaScript to build robust, full-stack architectures

* Knowledge of developing user interfaces, REST middleware, databases, and analytics within a cross-functional team framework

* Experience with collaborative development workflows, showcasing a strong history of teamwork and communication skills

* Familiarity with Git-based version control systems and continuous integration pipelines Desired Skills NICE-TO-HAVES
* Experience working within CNO, specifically with ATPG, TURBINE/ASGARD, or other automation platforms, alongside past CNE exposure

* Experience using and customizing AI-assisted development tools (Claude Code, Codex, Opencode, etc.) through advanced configurations like Skills and Memory

* Familiarity with modern UI libraries (React, Angular, Vue) and cloud-based hosting environments like AWS

* Experience with infrastructure expansion and deployment utilizing tools such as C2S, HCI, Docker, Nginx, and Git Lab CI/CD