Senior Software Engineer

$190k - $240k

Full-time

Belay Technologies, Inc.

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

Belay Technologies is seeking a Senior Software Engineer to join our intel team. We are seeking an experienced Software Engineer to design, develop, and integrate AI-enabled capabilities supporting computer network exploitation (CNE) and vulnerability research (VR). This role combines strong software engineering fundamentals with practical knowledge of vulnerability research, program analysis, and AI-assisted research workflows. We are particularly interested in candidates with hands-on experience conducting dynamic vulnerability research in isolated sandbox environments. You will independently own complex features and subsystems, translate mission needs into technical designs, and deliver reliable software from prototype through deployment. You will develop agentic AI harnesses that connect large language models, research tools, instrumented execution environments, and backend services to support repeatable, evidence-driven analysis. Working with vulnerability researchers, AI/ML engineers, and mission stakeholders, you will make sound architectural decisions, evaluate AI-generated findings, and improve the quality and effectiveness of research workflows. This position also includes mentoring engineers and contributing to technical direction and engineering standards.
Responsibilities:
Design, develop, and maintain AI-enabled software and research tooling supporting CNE and vulnerability research workflows.
Own the design and delivery of complex features and subsystems, including requirements refinement, implementation, testing, deployment, and sustainment.
Develop and integrate agentic AI harnesses that orchestrate research tools, manage execution state, collect evidence, and evaluate results.
Build and extend sandbox-based dynamic analysis capabilities for executing and observing software, capturing runtime behavior, and reproducing suspected vulnerabilities.
Integrate debugging, instrumentation, fuzzing, crash analysis, and related research tools into automated or researcher-directed workflows.
Establish repeatable evaluations that measure finding validity, reproducibility, false-positive rates, and the usefulness of AI-assisted analysis.
Develop backend services, APIs, data pipelines, and user interfaces that make research capabilities accessible and results traceable.
Troubleshoot complex issues across application code, AI integrations, research tooling, and execution environments; improve performance, reliability, and observability.
Lead design and code reviews within assigned areas, document technical decisions, mentor engineers, and communicate progress, risks, and tradeoffs to stakeholders.
Skills Requirements :
Demonstrated experience independently designing, implementing, testing, and delivering complex software features or subsystems, with sound judgment about architecture, maintainability, and operational requirements.
Proficiency in Python and experience building maintainable, tested software using modular design and appropriate object-oriented programming practices.
Demonstrated expertise in AI-enabled CNE or vulnerability research, including integrating AI capabilities into research workflows and critically evaluating their outputs.
Experience with vulnerability research or software analysis techniques, such as reverse engineering, debugging, dynamic analysis, fuzzing, or crash triage.
Working knowledge of isolated execution environments and dynamic analysis concepts, including runtime instrumentation, execution tracing, environment reproducibility, and evidence collection.
Experience developing LLM applications or agentic systems that use external tools, structured outputs, workflow state, error handling, and evaluation.
Experience developing backend services and REST APIs using frameworks such as FastAPI, Flask, or Django, and working with relational databases such as PostgreSQL.
Experience working in Linux environments, with an understanding of operating system behavior, processes, memory, and networking relevant to software analysis.
Experience using Git, automated testing, CI/CD, and code review to deliver reliable software collaboratively.
Ability to translate ambiguous requirements into actionable technical work, explain technical tradeoffs, and provide effective guidance to other engineers.
Nice to Haves :
Strongly preferred: Hands-on experience conducting dynamic vulnerability research in sandbox environments, including configuring instrumented targets, controlling execution, capturing runtime evidence, and reproducing findings across clean environment resets.
Experience building AI agents that interact with debuggers, fuzzers, emulators, or other analysis tools within controlled research environments.
Experience with virtualization, emulation, snapshots, and automated provisioning of repeatable analysis environments.
Experience with C/C++, assembly, binary analysis, memory corruption analysis, or operating system internals.
Experience designing evaluation datasets and benchmarks for AI-assisted vulnerability discovery, triage, or validation.
Experience with retrieval-augmented generation, vector databases, or search platforms such as Elasticsearch, Qdrant, or ChromaDB.
Experience building researcher-facing interfaces using TypeScript, React, or comparable technologies.
Contributions to vulnerability research, security tooling, open-source projects, or relevant technical publications.
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.
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.

Apply

Vacancy posted 7 days ago

Similar jobs that could be interesting for youBased on the Senior Software Engineer in Maryland, MD vacancy

Senior Software Engineer
$131.3k - $237.35k
...capabilities throughout the entire USG arsenal. Our team of hackers and engineers have experience spanning centuries of research, development,... ...’s threats and build the next generation of capabilities.The Software Engineer will be responsible for: Test front-end user...
Senior
Full time
Leidos
Annapolis Junction, MD
2 days ago
Senior Software Engineer, Top Secret/SCI w/Poly
$176k - $282k
ResponsibilitiesPeraton is seeking a Senior Software Engineer in Annapolis Junction, MD.This team supports two web applications used to manage collection initiatives, track signal analysis workflows, and maintain signal reference knowledge across the Agency and its mission...
Senior
Contract work
Shift work
Peraton Corporation
Annapolis Junction, MD
4 days ago
Senior Full Stack Software Engineer - Clearance Required
$166.9k - $309.9k
...may be a fit, click here to submit a referral. If your referral is hired, you‘ll receive a payment! code-extrefer Senior Full Stack Software Engineer - Clearance Required WHAT WE‘RE DOING • Join Lockheed Martin Rotary and Mission Systems, Cyber & Intelligence,...
Senior
Full time
Contract work
Temporary work
Work experience placement
Local area
Flexible hours
Lockheed Martin
Jessup, MD
14 hours ago
Senior Software Engineer
$176.9k - $332.4k
...potential. Unleash your talent and redefine what’s possible.Job Description:Parsons is looking for an amazingly talented Senior Software Engineer to join our team! In this role you will get to designs, modifies, develops, writes, and implements and tests software and...
Senior
Full time
Flexible hours
Parsons
Annapolis Junction, MD
1 day ago
Software Engineer, Senior
$86.9k - $198k
Software Engineer, SeniorThe Opportunity:As a full-stack developer, you can resolve a problem with a complete end-to-end solution in a fast,... ...to production-ready.This role is more than just coding. As a senior full-stack developer at Booz Allen, you’ll use your passion to...
Senior
Full time
Contract work
Part time
Work at office
Local area
Remote work
Booz Allen Hamilton
Annapolis Junction, MD
1 day ago
Senior Signals Software Engineer
$131.3k - $237.35k
...capabilities throughout the entire USG arsenal. Our team of hackers and engineers have experience spanning centuries of research, development,... ...Primary Responsibilities: Analyze user requirements to derive software design and performance specifications.Design, develop, and...
Senior
Full time
Leidos
Annapolis Junction, MD
1 day ago
Senior Software Engineer SWE3
$166.9k - $309.9k
...Unit: RMS-Svcs-LMOSStandard Job DescriptionTHE WORKThis Systems Engineering role fosters collaboration with other engineers to document,... ...emerging threats and opportunities.WHO YOU AREExperience as a Software Engineer on large scale production projects. Extensive experience...
Senior
Full time
Temporary work
Work experience placement
Casual work
Flexible hours
Lockheed Martin
Annapolis Junction, MD
19 hours ago
Senior Software Engineer
$131.3k - $237.35k
...to customers in the national security, engineering, and health industries. We deliver innovative... ...technology-enabled services and mission software capabilities to support Intelligence... ...About the OpportunityLeidos is seeking a Senior Software Engineer to develop, integrate,...
Senior
Full time
Leidos
Laurel, MD
19 hours ago
Senior Software Engineer
...Software Engineer The Software Engineer shall be responsible for providing engineering support for mission applications in a SaaS/PaaS Linux environment deployed on an 'on-prem' cloud offering developed with open source software using Kubernetes, Docker, Istio, Rook...
Senior
Fuse Engineering
Annapolis Junction, MD
3 days ago
Senior Software Engineer
...Senior Software Engineer We are seeking a highly skilled and experienced Senior Software Engineer to develop, maintain, and enhance complex and diverse software systems. As a Senior Software Engineer, you will work on various software projects, including processing...
Senior
Relocation package
Flexible hours
Fullscope
Annapolis Junction, MD
3 days ago
Senior Software Engineer
...Software Engineer Peterson Technologies has been the premier resource for mission-critical solutions through detailed analysis, strategic insight, extensive operational experience, and technical expertise. Today, we provide leading-edge data, network security software...
Senior
Peterson Technologies
Annapolis Junction, MD
3 days ago
Senior Software Engineer
$179k - $237k
...Software Engineer, Dataflow and Distributed Processing Make an Impact Where It Matters Most At Intelliforce, we build software that helps mission systems move, process, and act on data at scale. In this role, you will bring deep expertise in dataflow design, data...
Senior
Immediate start
Visa sponsorship
Intelliforce-IT Solutions Group, LLC.
Annapolis Junction, MD
5 hours ago
Senior Signals Software Engineer
$200k - $207k
...critical national security programs by building high-performing engineering teams and developing innovative enterprise solutions. Our... ...a motivated, career-oriented, and customer-focused Senior Signals Software Enginee r to join our team in Annapolis Junction, Maryland...
Senior
Hourly pay
Contract work
Work experience placement
Envision Innovative Solutions
Annapolis Junction, MD
6 hours ago
Senior Software Engineer
$224k - $265k
...Software Engineer - Senior Level As a Software Engineer - Senior Level at Boeing Intelligence & Analytics (BI&A), you will be responsible for: Developing, maintaining, and enhancing complex and diverse software systems (e.g., processing-intensive analytics, novel...
Senior
Contract work
Remote work
Worldwide
Boeing Intelligence & Analytics
Annapolis Junction, MD
3 days ago
Senior Software Engineer
$99k - $206k
...surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies,... ...community, defense, civil, and commercial markets. Senior Software Engineer At Nightwing, we are on a mission to develop resilient and...
Senior
Full time
Nightwing
Annapolis Junction, MD
5 hours ago
Senior Software Engineer
...Senior Software Engineer This is a full-time position, and requires a TS/SCI/Full Scope Polygraph Clearance. 2HB Incorporated is seeking a Senior Software Engineer in order to support its government customer in Annapolis Junction, MD. The Software Engineer designs,...
Senior
Full time
2HB Incorporated
Annapolis Junction, MD
3 days ago
Software Engineer, Senior
...customers, and take ownership for our actions-always striving to do the right thing. Kratos is looking for an innovative Senior Software Engineer to join our team in-person in Annapolis Junction, MD. This position develops, maintains, and enhances complex...
Senior
Kratos Defense
Annapolis Junction, MD
4 days ago
Senior Software Engineer
...Software Engineer Position Base-2 Solutions is looking for a top-notch software engineer to join our team. We are driven to solve challenging customer problems by leveraging innovative technical solutions. Our software engineers develop the next-generation technologies...
Senior
Base2 Solutions
Annapolis Junction, MD
1 day ago
Senior Software Engineer Jobs
$185k - $215k
...Worker Type Regular Job Description Job Summary The primary role of the Software Engineer II is to drive research, modernization, and innovation initiatives across mission-critical systems. This role focuses on evaluating existing production environments, identifying...
Senior
Permanent employment
Contract work
Work experience placement
Local area
Immediate start
A/V Services LLC
Jessup, MD
19 hours ago
Software Engineer, Senior
$86.9k - $198k
...Job Number: R0237633 Software Engineer, Senior The Opportunity: As a full stack developer, you can resolve a problem with a complete end-to-end solution in a fast, agile environment. If you're looking for the chance to not just develop software, but to create a...
Senior
Full time
Contract work
Part time
Work at office
Local area
Remote work
Booz Allen Hamilton
Laurel, MD
4 days ago
Software Engineer, Senior
$100k - $275k
...Software Engineer Would you like to perform rewarding work while contributing to the success of an established, growing company? Navstar... ...the requirements for one of the following skill levels: Senior: Seven (7) years experience as a SWE, in programs and contracts...
Senior
For subcontractor
Local area
Flexible hours
Navstar
Annapolis Junction, MD
3 days ago
Full Stack Software Engineer, Senior
$86.9k - $198k
Full Stack Software Engineer, SeniorThe Opportunity:As a full stack developer, you can resolve a problem with a complete end-to-end solution... ...to production-ready. This role is more than just coding. As a senior full stack developer at Booz Allen, you’ll use your passion...
Senior
Full time
Contract work
Part time
Work at office
Local area
Remote work
Booz Allen Hamilton
Annapolis Junction, MD
19 hours ago
Senior User Experience (UX) Software Engineer - TS/SCI w/Poly
$146k - $234k
ResponsibilitiesThe team is seeking a highly motivated User Experience software engineer to support development and software solutions to support data tracking and metrics solutions. The ideal candidate will:Conduct multidisciplinary research and collaborate with systems...
Senior
Contract work
Shift work
Peraton Corporation
Annapolis Junction, MD
4 days ago
Senior Software Engineer & Reverse Engineer — TS/SCI
GliaCell Technologies, Laurel, MD, is seeking a Senior Software Engineer / Reverse Engineer to join a fast-paced government-focused team. You will develop security tooling, reverse engineer networks and applications, and collaborate with analysts and software engineers...
Senior
GliaCell Technologies
Laurel, MD
1 day ago
Senior Software Engineer (Remote)
$167.7k - $245.2k
...technologies across Linux and Windows.Our software agent team builds high-performance,... ...environments.As part of the Windows agent engineering team, you will focus on extending these... ...environments. You will work closely with senior engineers, architects, and cross-functional...
Senior
Full time
Temporary work
Local area
Remote work
Flexible hours
CISCO Systems
Annapolis Junction, MD
2 days ago
Senior Software Security Engineer
$146k - $234k
...customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure.ResponsibilitiesJob Description: Software Engineer to implement, test, and operate using advanced software security techniques in compliance with the technical reference...
Senior
Contract work
Temporary work
Work experience placement
Shift work
Peraton Corporation
Annapolis Junction, MD
22 hours ago
Senior Integration Software Engineer - Clearance Required - HYBRID
$166.9k - $309.9k
...Join Lockheed Martin Rotary and Mission Systems, Cyber & Intelligence, where we foster innovation and integrity.• As a Senior Integration Software Engineer, you'll be empowered to create "new realities" and pioneer solutions that break boundaries.• Benefit from the...
Senior
Full time
Contract work
Temporary work
Work experience placement
Casual work
Flexible hours
Lockheed Martin
Annapolis Junction, MD
19 hours ago
Senior Cyber Software Engineer
Execute manual and automated test plans, analyze system requirements and operational documents to develop evaluation procedures, collect and analyze test data, and coordinate with other test organizations to integrate testing and evaluation activities. Requires a bachelor...
Senior
Full time
Lockheed Martin
Jessup, MD
3 hours ago
Senior Software Engineer
$189k - $243k
...Job Description Job Description Senior Software Engineer, Data Dictionary Platform Make an Impact Where It Matters Most At Intelliforce, we build software that helps mission teams trust the data they use and the systems that depend on it. In this role, you will...
Senior
Work experience placement
Immediate start
Visa sponsorship
Intelliforce-IT Solutions Group
Annapolis Junction, MD
more than 2 months ago
Senior Software Engineer
$180k - $260k
...security clearance is REQUIRED. Please do not apply if you currently do not possess this level of clearance.*** Are you a Senior Software Engineer who is ready for a new challenge that will launch your career to the next level? Tired of being treated like a company...
Senior
Full time
Contract work
Remote work
Work from home
Relocation package
GliaCell Technologies
Annapolis Junction, MD
a month ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Software Engineer. Be the first to apply!