31 senior software development engineer jobs at 22 companies in Harrington, DE
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Senior Software Engineer
Annapolis Junction or United States
$180k-$260k/yrOnsiteFull Time
GliaCell Technologies: Software and systems engineering for the intelligence community.
14+ YOEActive TS/SCI with Polygraph required; 14+ years software engineering; BS in Computer Science or related; US citizenship; 4 years experience can substitute for degree; strong Java, MapReduce, Cloud; Annapolis Junction, MD.
RSC2: Provides technical and engineering services to federal defense agencies.
8+ YOEActive Top Secret clearance; Master’s in engineering or computer science; 8+ years related experience; part-time, salary-exempt; Aberdeen Proving Ground, MD.
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
5+ YOEUS citizen with active Secret clearance, bachelor's in CS or engineering with 5+ years software experience (or 8 years experience), proficiency in multiple programming languages, observability/telemetry, and troubleshooting mission-critical systems.
Calvert Systems Engineering: Provider of engineering and advisory services to defense agencies.
14+ YOEBachelor's in Computer Science (or equivalent experience), 14+ years software engineering experience, Top Secret with full-scope polygraph, proficiency with modern software development practices.
FacilityOS: Unified platform for facility safety, security, and operations.
8+ YOE8+ years backend .NET experience with C#, Microsoft SQL Server/T-SQL, unit testing, RESTful services, cloud-native SaaS/PaaS experience, and ability to modernize legacy systems.
.NET Framework, .NET Core, C#, Microsoft SQL Server, T-SQL
HIINYSE: HII: Builds naval ships and provides global defense technology solutions.
5+ YOE5+ years experience (Bachelors) developing C++ simulation software; ability to obtain TS/SCI clearance; experience with agent-based modeling, space domain concepts, and code review practices.
Peraton: National security and mission-critical government technology services provider.
19+ YOEBachelor's degree in Engineering, Computer Science, Mathematics, or related field with extensive software engineering experience; cloud, Linux, Python; active TS/SCI with poly; ability to work at a customer site.
Senior Software Engineer - ARINCDirect Mobile (Onsite)
Annapolis, Maryland, United States
$96k-$182k/yrOnsiteFull Time
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
5+ YOE5+ years professional iOS/mobile development with Swift and Objective-C; proficiency with Xcode, Core Data, RESTful APIs; strong troubleshooting and collaboration skills; Python experience recommended.
Sigmatech: Provides specialized engineering, technical, and programmatic support for government agencies.
10+ YOEBachelor's in CS/SE (or equivalent experience), 10+ years software engineering with 3+ years on DoD communications, proficiency in C++, Java, or Python, secure coding and networking protocols knowledge, active DoD Secret clearance.
Semper Valens Solutions: Provides systems engineering, software development, and technical support services.
10+ YOE10+ years software engineering experience, Bachelor’s in CS or related, Secret clearance required, experience with DoD SDLC, radar/signal processing, Agile/DevSecOps, MOSA, testing and QA.
software development lifecycle (SDLC), Agile, DevSecOps, Modular Open Systems Approach (MOSA)
AMC Health: Provides remote patient monitoring and virtual care technology.
7+ YOE7+ years building production backend systems, strong Python skills, cloud distributed systems (AWS), hands-on LLM/generative AI experience, ML lifecycle proficiency, and disciplined data handling in regulated environments.
Annapolis Junction or San Antonio or Aurora or Carey
$149k-$235k/yrOnsiteFull Time
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
8+ YOEBachelor's degree in computer science, information systems, or network engineering with 8+ years experience; strong C/C++, Java, Python; CNO tools; Windows/.NET and Unix/Linux development.
Cloud Software Engineer (TS/SCI with Poly required, Hybrid Remote)
Columbia, Maryland, United States
$180k-$250k/yrHybridFull Time
Red Alpha: Provides software engineering and data science for defense missions.
5+ YOE5+ years of software/Cloud engineering; TS/SCI with Poly; experience in AWS/Azure/GCP; IaC (CDK or Terraform); Python, Typescript; containerization (Docker, Kubernetes); network and security skills; strong communication.