3,961 senior software engineer jobs at 816 companies in Frederick, MD

PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
2mo
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Senior Software Engineer
Arlington or San Diego or Woburn
$139k-$180k/yr HybridFull Time
Systems & Technology Research
Systems & Technology Research: Develops advanced technology for national security and defense applications.
5+ YOESenior software engineer with strong C++, Python/MATLAB, RT real-time systems, security clearance eligibility.
C++, Python, MATLAB, CI/CD, Windows, Linux
1mo
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Software Engineer, Senior
Fort Meade, Maryland, United States
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
14+ YOESenior full-stack developer with experience in C++, JavaScript, and Python; TS/SCI clearance with polygraph; 14+ years of software engineering experience or 18+ years in lieu of degree.
C++, JavaScript, Python
3mo
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Senior Software Developer
Bethesda, Maryland, United States
OnsiteFull Time
Prescient Edge
Prescient Edge: Provides intelligence, security, and defense support services.
10+ YOESenior software engineer with 10+ years' experience, Secret clearance, master's degree in a quantitative field, Agile/DevOps experience, Scrum/Developer certification.
3mo
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Senior Software Engineer, Growth
Boston, Massachusetts, United States
$148k-$222k/yr OnsiteFull Time
Klaviyo
KlaviyoNYSE: KVYO: Software platform for automated e-commerce marketing and customer data.
Senior software engineer with full-stack experience, focus on onboarding and user experience, data-driven, AI-aware, leadership and mentoring responsibilities.
HTML, TypeScript, JavaScript, React, Python, Django, MySQL, Cassandra, RabbitMQ, Redis, AWS, Terraform, Ansible, Packer
3mo
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Senior Software Engineer
Annapolis Junction, Maryland, United States
$170k-$260k/yr OnsiteFull Time
GliaCell Technologies
GliaCell Technologies: Software and systems engineering for the intelligence community.
14+ YOETS/SCI with polygraph clearance required; US citizenship; 14+ years software engineering; BS CS or related; strong communication; able to work independently.
React, Next.js, REST APIs, Frontend architecture, SEO optimization
3mo
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Senior Software Engineer
Herndon, Virginia, United States
OnsiteFull Time
Expedition Technology
Expedition Technology: Delivering advanced machine learning and signal processing for defense.
8+ YOE8+ years software engineering; Python expert; TS/SCI with CI poly; Bachelor's in CS/EE or equivalent; cloud; DevSecOps; Linux; AI/ML interest.
Python, Docker, Kubernetes, Linux, Cloud, CI/CD workflow
2mo
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Senior Software Engineer
Annapolis Junction, Maryland, United States
$189k-$243k/yr OnsiteFull Time
Intelliforce
Intelliforce: Provides engineering and technical solutions for the intelligence community.
8+ YOETop Secret clearance with Full Scope Polygraph; US citizen; 8+ years software engineering; BS or higher in Computer Engineering or Computer Science; 3 years in SIGINT/IA/IT domains; strong Java/Spring, REST, SQL, Linux, Agile.
Java, Spring, Spring Boot, REST, PostgreSQL, SQL, Linux, CI/CD, Agile, Jira, Redmine, Docker, Kubernetes
3mo
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Senior Software Engineer
Arlington, Virginia, United States
OnsiteFull Time
AvalonBay Communities
AvalonBay CommunitiesNYSE: AVB: Develops and manages luxury multifamily apartment communities.
6+ YOEBachelor's degree; 6+ years software engineering; 5+ years Node.js/TypeScript backend; 3+ years AWS; 2+ years SQL/PostgreSQL; 2+ years Agile.
AWS, Node.js, TypeScript, JavaScript, PostgreSQL, Next.js, React, AWS CDK, API Gateway, Lambda, SQS, EventBridge, GitHub Actions
1mo
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Senior Software Engineer
Austin or New York or Washington or United States
OnsiteFull Time
Sand Technologies
Sand Technologies: Develops industrial AI and digital twin solutions for enterprise operations.
5+ YOE5+ years in software engineering; CS/SE degree; backend (Django/Node), frontend (React/JS); cloud infra; APIs; data systems; 50-75% travel; not remote.
React, JavaScript, Django, Node.js, SQL, CI/CD, AWS, Azure, GCP
3mo
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Senior Software Engineer
Jessup, Maryland, United States
$185k-$215k/yr OnsiteFull Time
AeroVironment
AeroVironmentNASDAQ: AVAV: Designs and manufactures unmanned aircraft and tactical missile systems.
14+ YOEBachelor’s degree; 14+ years software engineering/architecture; Java, Python, JavaScript; AWS (EC2, S3); REST APIs; Docker/Kubernetes; OAuth2/OpenID Connect; PKI; Agile; TS/SCI with Poly.
Java, Python, JavaScript, ReactJS, AWS, EC2, S3, Docker, Kubernetes, OAuth2, OpenID Connect, PKI, REST, Jenkins, GitLab CI, GitHub Actions, Maven, TensorFlow, PyTorch, Neo4j, Amazon Neptune, Keycloak
1mo
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Senior Software Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Entegra Systems
Entegra Systems: Provides engineering and intelligence analysis for government missions.
8+ YOEBachelor's degree, 8+ years software engineering; 3+ years in SIGINT/IA/IT; TS/SCI with polygraph clearance; Java middleware experience; JMS knowledge; data processing; CEP and stream processing; Redis; Linux.
Java, JMS, Apache Camel, CEP, STORM, Redis, Linux
1mo
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Senior Software Engineer (Leadership) 2026-0138
Chantilly, Virginia, United States
OnsiteFull Time
Acclaim Technical Services
Acclaim Technical Services: Provides language and intelligence services to U.S. federal agencies.
10+ YOE4+ MgmtSenior software engineer with leadership experience; TS/SCI clearance with polygraph; 10+ years in software/data/platform engineering; 4+ years leading a major technical service area; strong admin/control-plane design.
Java, Linux, Vue.js, Consul, Nomad, Vault
3w
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Software Engineer, Senior
Fort Meade, Maryland, United States
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
5+ YOESenior back-end software engineer with 5+ years in software development; experience with Java and Springboot, Elastic, Agile methodologies, TS/SCI with polygraph required; Bachelor's in Computer Science preferred (14+ years experience alternative).
Elastc, Java, Springboot, JavaScript, SQL, Python, Node.js, Groovy, Scala, NiagraFiles (NiFi), Spring Cloud, Spring Core, Spring Data, CI/CD, Linux
2mo
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Senior Software Engineer
Washington or Boston
$129k-$194k/yr OnsiteFull Time
Recorded Future
Recorded Future: Provides AI-driven threat intelligence to protect organizations from cyberattacks.
Strong Python, distributed systems, cloud platforms, AI/ML, LLMs, autonomous agents, senior IC.
Python, AWS, GCP, Azure, Jira, Git, LLMs, AI agent tooling
3mo
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Senior Software Developer
Tysons, Virginia, United States
OnsiteFull Time
NS2 Mission
NS2 Mission: Delivers secure data management and analytics for national security.
10+ YOEBachelor’s degree in Computer Science, Computer Information Systems, Computer Engineering, or related field; 10+ years of software development; Linux, AWS, Java, PHP, HTML/CSS/JavaScript, MySQL; IAM/Security tooling.
Linux, AWS, Apache Web Server, Apache Tomcat, Java, PHP, HTML, CSS, JavaScript, MySQL, VS Code, Bash
1mo
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Senior Software Engineer (Scala)
Washington, District of Columbia, United States
$175k-$195k/yr HybridFull Time
Quantifind
Quantifind: AI-driven platform for financial risk and fraud detection.
5+ YOE5+ years as a software engineer; expertise in Scala/Java, distributed systems, Spark; experience with Kubernetes, REST microservices, and data pipelines.
Scala, Java, Apache Spark, HDFS, Iceberg, Airflow, MapReduce, Kubernetes, REST, PostgreSQL, Memcached, Redis
1mo
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Senior Software Engineer
Reston, Virginia, United States
OnsiteFull Time
NVR
NVRNYSE: NVR: Constructs residential properties and provides mortgage and settlement services.
5+ YOE5+ years in software development; Dynamics 365 CRM; .NET, C#, SQL; Azure; strong teamwork and problem-solving.
Microsoft Dynamics 365 CRM, NET, C#, SQL, Azure, REST APIs
2mo
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Senior Software Engineer (AI Software & Operations)
United States or Elkridge
RemoteFull Time
Surefire Cyber
Surefire Cyber: Provides rapid incident response and digital forensics services.
Strong software engineering fundamentals; full-stack Python and React; production AWS and Kubernetes; Terraform; GitHub Actions; autonomy in a startup; eager to learn agentic AI workflows.
Python, React, AWS, Kubernetes, Terraform, GitHub Actions, LangChain, Claude Code, AutoGen, CrewAI
1mo
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Cleared Senior Software Engineer
Chantilly or Charlottesville
$116k-$209k/yr OnsiteFull Time
General Atomics
General Atomics: Designs and manufactures unmanned aircraft and nuclear technology systems.
8+ YOETop Secret/SCI with CI Poly required; US citizenship required. Requires senior software engineering experience (≈8+ yrs), Java and Linux experience, familiarity with AWS, Docker, Kubernetes, strong math/networking background, and software leadership.
Java, Linux, AWS, Docker, Kubernetes
1mo
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Software Engineer – Senior - CCSA
Arlington, Virginia, United States
OnsiteFull Time
Nemean Solutions
Nemean Solutions: Provides intelligence, IT, and training services for defense agencies.
8+ YOESenior software engineer with Azure DevOps, C#, .NET, SQL, JavaScript; IAM Level II with Security certifications; 8+ years of experience; BS in CS/IS/Engineering/Business; RMF/SSDLC knowledge.
Azure DevOps, Visual Studio 2019, C#, .NET, SQL, jQuery, JavaScript

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