Senior Application Developer (Full Stack)

Belay Technologies has been voted Baltimore Business Journal's (BBJ) Best Places to Work 2026!

Belay Technologies is seeking a Senior Application Developer to join our intel team. You will operate as a Full Stack Software Engineer on the Enduring Targets, Global Technology section's Discovery Analytics Team (Section 7 DAT) with TAO. The DATs are tasked to provide custom software solutions for TAO’s operators and analysts including analytic pipelines, webpage visualization and general mission focused knowledge. This is a high-speed, rapidly changing environment that provides new challenges and opportunities for learning and growing on a daily basis. The DATs maintain multiple applications and servers, provide scripting support and provide the documentation and software solutions to a wide variety of users across CNO.

Candidates should have the following qualifications

• TS/SCI Clearance with polygraph
• Twelve (12) years of experience with a bachelor's degree in a technical field
• Ten (10) years of experience with a master's degree in technical field
• Fourteen (14 years of experience with no degree
• Teams are small and cross-functional, so ideal candidates bring some combination of UI/UX, middleware/API, back-end, DevOps, TAO/CNO, or data science experience.
• Experience leveraging AI Agents to assist with software development and research. (Claude Code, Codex, Pi, etc.) JavaScript/TypeScript/HTML/CSS experience.
• Experience writing scripts and services in Python.
• Experience developing with UI frameworks (e.g., Angular, React, etc.).
• Familiarity with Relational Databases (Postgres, SQLite, etc.).
• Familiarity with GitLab (CI/CD).
• Familiarity with Docker

Responsibilities

• Gather requirements and make improvements to existing corporate tools.
• Understand the customer’s mission, collaborate with team members, gather user requirements, and automate workflows.
• Design and create reliable, intuitive user interfaces and workflows.
• Integrate with, and contribute to, a diverse set of teams, systems, and technology stacks.
• Work closely with the team lead to understand and address the needs of analysts and developers.
• Develop cutting-edge solutions for data visualizations, task automation, and workflow enhancements.
• Independently drive projects and proposals, taking ownership of the entire development lifecycle.

Candidates are desired to have the following skills

• Prior CNO experience
• Knowledge of Network Protocols
• Experience with analyzing cyber security-related data sets (network traffic, OS events)
• Independently drive projects and proposals, taking ownership of the entire development lifecycle.
• Knowledge of end-to-end SIGINT collection and analysis systems.
• Rust Experience.
• Experience developing software with Java.

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. We are an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.

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