Senior Software Engineer
About The Position
Belay Technologies is seeking a Senior Software Engineer to join its intel team and the ATPG Endpoint Snapshots (soon to be Access Pursuit) team in a rapid development and deployment environment. The role provides end-to-end engineering support to architect, build, and maintain robust, large-scale distributed web applications and cloud-native systems. A key focus is responding quickly to emergent mission opportunities by prototyping and fielding critical capabilities under compressed timelines. The engineer will collaborate with cross-functional teammates, analysts, and security researchers in offensive cyber to modernize infrastructure, integrate automated workflows, and address complex technical challenges. The role uses modern cloud architectures, automation, and AI-assisted development tools to deliver actionable insights and accelerate mission success. The position requires a TS/SCI clearance with polygraph and 12 years of experience, a bachelor's degree in a technical discipline, or four additional years in place of the bachelor's degree. The stated salary range is $190,000 to $240,000. Belay Technologies is located in Columbia, Maryland, in the Baltimore/Washington area.
Requirements
- Production-grade software development experience in Python, JavaScript, and TypeScript building enterprise-grade distributed web applications.
- Experience with high-side development environments such as NSANet, MACHINESHOP, C2S, or GHOSTMACHINE, and non-attributed network configurations.
- Knowledge of end-to-end full-stack architecture, including modern frontend design, RESTful APIs, relational and non-relational databases, and backend services.
- Experience with DevOps automation, Docker, continuous integration pipelines, and cloud service providers such as AWS/C2S.
- Knowledge of modern software engineering practices, including Git-based version control, testing frameworks, and agile workflows in collaborative teams.
- TS/SCI clearance with polygraph.
- 12 years of experience, a bachelor's degree in a technical discipline, or four additional years in place of a bachelor's degree.
Nice To Haves
- Experience working in or interest in offensive cyber operations (CNO/CNE, ATPG, TURBINE/ASGARD), vulnerability research, and software reverse engineering.
- Experience using and configuring AI-assisted development tools (Claude Code, Codex, Opencode) through skills, memory, or custom extensions.
- Familiarity with modern UI libraries such as React, Angular, or Vue, as well as legacy stacks such as Bootstrap and jQuery.
- Knowledge of mobile vulnerability research and Android application architecture.
- Experience with low-level programming (C/C++), debugging tools (gdb), or legacy analytics frameworks (Java Map/Reduce, GHOSTMACHINE).
Responsibilities
- Develop and maintain robust, large-scale distributed web applications and full-stack solutions using JavaScript/TypeScript, Node.js, and Python.
- Architect scalable microservices, REST middleware, and backend data-processing pipelines that support high-tempo mission requirements.
- Deploy and manage services across cloud-native and high-side environments such as MACHINESHOP, AWS, and C2S using Infrastructure-as-Code and DevOps automation.
- Create and maintain automated CI/CD pipelines, such as GitLab CI/CD, for rapid, secure, and reliable software delivery.
- Collaborate with cross-functional teams, mission analysts, and vulnerability researchers to integrate engineering best practices into offensive cyber tooling and rapid-response capabilities.
- Use AI-assisted development workflows, such as Claude Code, Codex, and Opencode, to increase development velocity in response to emergent mission opportunities.
Benefits
- 8 weeks of paid leave, including 4 weeks of personal leave, 3 Yay! days, birthday leave, 11 paid holidays, and optional leave of up to 6 days through Belay's volunteer program.
- 10% matching in 401(k) contributions, vested on day one.
- $5,000 annual training/tuition benefit.
- Student Loan Repayment Program.
- 100% company-funded HSA.
- Medical coverage with 100% coinsurance.
- Dental coverage including orthodontia.
- Up to $420,000 in life insurance with premiums fully company-funded.
- Amazon Prime, gym reimbursement, monthly lunches, games, and prizes.
- Pet adoption program, referral bonus program, and events.
- Flexible work-life balance and career development.
Stand Out From the Crowd
Upload your resume and get instant feedback on how well it matches this job.
What This Job Offers
Job Type
Full-time
Career Level
Senior
