Belay Technologies is seeking a Senior Software Engineer to join our intel team. Join ATPG's Endpoint Snapshots (ES) team as a high-caliber full-stack engineer thriving in a rapid development and deployment environment. A key focus of this role is the ability to react swiftly to emergent mission opportunities, designing and deploying new capabilities under tight timeframes. 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. Collaboration is essential as you work alongside teammates and partners to modernize legacy infrastructure and scale future capabilities. Ultimately, your responsiveness will directly accelerate mission success by leveraging cutting-edge automation and AI-assisted development tools to deliver actionable insights. Responsibilities: 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 GHOSTMACHINE analytics. Manage and deploy services within existing infrastructure environments using MACHINESHOP, Docker, Nginx, and GitLab CI/CD, while planning expansions into C2S and HCI. Utilize AI-assisted development tools such as Claude Code, Codex, and Opencode to accelerate code delivery and enhance team development velocity. Skill Requirements: Experience with successful software development on NSANet, demonstrating familiarity with environment ecosystems such as MACHINESHOP, C2S, or GHOSTMACHINE. 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 Candidates should have the following qualifications: TS/SCI Clearance with polygraph 12 yrs., B.S. in a technical discipline or 4 additional yrs. in place of B.S. Candidates are desired to have the following skills: 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 GitLab CI/CD Perks and Benefits: 8 weeks paid leave - 4 weeks of personal leave, 3 Yay! days, take off on your birthday,11 paid holidays and optional leave up to 6 days through Belay's volunteer program 10% matching in 401(k) contributions vested on day one $5,000 annual training/tuition Student Loan Repayment Program 100% company-funded HSA Rich medical coverage (100% coinsurance) Dental coverage including orthodontia Up to $420,000 in life insurance, premiums 100% company funded Amazon Prime, gym reimbursement, monthly lunches, games and prizes Pet adoption program, generous referral bonus program, fun events, and more! At Belay, we are committed to creating an environment where you can thrive both professionally and personally. We believe in transparency and fairness in compensation. Several factors influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, education, specific skills and competencies and certifications. Belay offers a competitive total compensation package that includes benefits and perks, a flexible work-life balance, and career development. Salary Range: $190,000 to $240,000 Belay Technologies is a certified Service-Disabled Veteran-Owned Small Business located in Columbia, Maryland (Baltimore/Washington area). Belay Technologies specializes in systems automation and full stack development. Belay Technologies provides leading technology and engineering solutions to the DoD, as well as state-of-the-art commercial products. We hire software engineers, web designers, test engineers, systems engineers, systems administrators, database engineers and other tech services.