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15,501 mid level software engineer jobs at 5,327 companies in United States

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Mid-Level Software Engineer
Fort Meade, Maryland, United States
$70k-$190k/yr OnsiteFull Time
Belay Technologies
Belay Technologies: Provides specialized technology and engineering services to the DoD.
12+ YOEMid-level software engineer with strong Python, production-scale systems, and AI workflow experience.
Python, Apache Kafka, Elasticsearch, PydanticAI, Langgraph, DeepAgents
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3mo
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Mid-Level Software Developer
Chantilly, Virginia, United States
OnsiteFull Time
Redhorse
Redhorse: Delivering data insights and technology solutions to government agencies.
3+ YOEMid-level software developer with 3+ years in AWS, web apps, and classified IC systems; TS/SCI with FS Poly; BS in CS/IT/IS; familiar with Agile, CI/CD, and security standards.
AWS, AngularJS, JavaScript, Java, HTML, CSS, Kubernetes, Terraform, Docker, Confluence, Jira
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3mo
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MID LEVEL SOFTWARE DEVELOPER
Huntsville or Colorado Springs
$100k-$130k/yr OnsiteFull Time
Ignite Fueling Innovation
Ignite Fueling Innovation: Provides professional services and technical solutions for federal agencies.
4+ YOESecret clearance required; 4-7 years software development; Microsoft tech; SQL Server; secure coding; BS in CS/Software Eng preferred.
ASP.NET, C#, SQL Server, SharePoint 365, Web services, Microsoft development technologies
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3mo
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Software Engineer - Mid-Level
San Francisco, California, United States
OnsiteFull Time
Unlimited
Unlimited: Automates design and construction of large-scale physical infrastructure.
Mid-level software engineer with focus on AI integrations and infrastructure software. Full-time, on-site in San Francisco.
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1mo
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Mid-Level React Developer
Annapolis Junction or Columbia
$150k-$200k/yr HybridFull Time
Freedom Technology Solutions Group
Freedom Technology Solutions Group: Provides geospatial and software engineering solutions for national security agencies.
6+ YOEMid-level React/Java/Spring Boot developer with TS/SCI poly; 6+ years exp; strong React, Java, REST APIs; Camunda/Pega a plus.
React, Java, Spring Boot, Camunda, Pega, Oracle, REST, SQL
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3mo
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Mid Software Engineer
Aberdeen, Maryland, United States
$104k-$181k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
5+ YOEBachelor's in CS or related field with 5 years experience, or 8 years experience; Python, C++, Java, C#; software development lifecycle; US citizenship and SECRET clearance.
Python, C++, Java, C#, Git, CI/CD, Docker
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Software Engineer, Mid -Level
Huntsville, Alabama, United States
OnsiteFull Time
SimTech
SimTech: Provides modeling and simulation services for defense systems.
3+ YOEBachelor's or Master's in engineering/CS/physics/math, 3+ years software engineering, proficiency in C++ and Python, CUDA capability, Linux (RedHat/Debain), DevSecOps experience, and active Secret security clearance required.
C++, CUDA, Python, Linux, RedHat, Debain, doxygen, UML, CI/CD, DevSecOps
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2mo
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Mid Level Software Engineer
Baltimore, Maryland, United States
$125k-$150k/yr HybridFull Time
BlackSea Technologies
BlackSea Technologies: Designs and manufactures autonomous maritime vessels and defense hardware.
3+ YOE3-7 years software engineering, strong C++, distributed systems, robotics/autonomy, AI-assisted development tools; APIs and networking experience.
C++, MAVLink, Protobuf, DDS, CAN, TCP/IP, serial, OpenAI Codex, Claude Code
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2mo
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Mid Level Forward Deployed Software Engineer
Arlington, Virginia, United States
RemoteFull Time
PVM
PVM: Specialized services firm implementing Palantir technology for government agencies.
3+ YOEMid-level software engineer with 3+ years of experience; Python/TypeScript/Java; Palantir Foundry experience; government/defense environment familiarity.
Palantir Foundry, Python, TypeScript, Java, Foundry Workshop, Ontology
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3mo
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Software Engineer - Mid Level
Blacksburg, Virginia, United States
$80k-$128k/yr OnsiteFull Time
Peraton
Peraton: Provides advanced technology and mission support for government agencies.
5+ YOE5+ years as a full-stack software engineer; Bachelor's in CS/CE; Java and Python; AI-assisted development; front-end and web services; SQL; Docker; Agile; strong communication; US citizenship for security clearance
Java, Python, HTML, CSS, JavaScript, React, Angular, SQL, Postgres, MySQL, MSSQL, Docker, Kubernetes, AWS, Claude Code, GitHub CoPilot, Codex, CI/CD, Agile
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3mo
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Software Engineer - Mid Level
Blacksburg, Virginia, United States
$80k-$128k/yr OnsiteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
5+ YOE5+ years full-stack software engineer; BS in CS/CE; Java and Python; AI-assisted development; front-end (HTML, CSS, JavaScript) with React/Angular; web services; SQL; Docker; Agile; strong communication; US Citizenship with ability to obtain secret clearance.
Java, Python, HTML, CSS, JavaScript, React, Angular, SQL, Docker
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2mo
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Mid-Level Software Engineer (PXI Test Systems)
Huntsville, Alabama, United States
OnsiteFull Time
Torch Technologies
Torch Technologies: Provides research and engineering services to the defense industry.
5+ YOEUS Citizenship; Bachelor’s in CS/SE/CE or related; 5+ years’ experience; ability to obtain secret clearance.
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2w
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Software Engineer Mid Level
Annapolis Junction, Maryland, United States
$200k-$275k/yr OnsiteFull Time
Integrity Technology Consultants
Integrity Technology Consultants: Provides engineering and management consulting solutions to US national security.
7+ YOETS/SCI with Full-Scope Polygraph, ~7+ years software engineering experience, bachelor’s in computer science or related (or 4 extra years experience), strong software design and testing skills.
Apache AirFlow, Python, Apache Spark, Trino, Kubernetes
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2mo
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Software Engineer: Mid-Level
Allen or Birmingham or Cedar Falls or Charlotte or Lenexa or Louisville or Monett or Springfield
HybridFull Time
Jack Henry
Jack HenryNASDAQ: JKHY: Technology and payment processing solutions for financial institutions.
4+ YOE4+ years software development; C# or Golang experience; design patterns/SOLID; cloud experience preferred.
C#, Golang, Google Cloud Platform, APIs, Middleware, Multi-tenant
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2mo
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Mid-Level Software Engineer
Fairfax or Lexington
$90k-$180k/yr OnsiteFull Time
Riverside Research
Riverside Research: Independent non-profit performing scientific research for national security.
8+ YOESecret clearance; 8-10 years software Eng; ML/AI with Python/Java/C++; ML libraries; cloud; Agile; Git.
Python, Java, C++, TensorFlow, PyTorch, Scikit-learn, Git, AWS, Azure
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2mo
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Mid-Level Software Engineer
Washington, District Of Columbia, United States
$145k-$190k/yr OnsiteFull Time
Visionist
Visionist: Provides software engineering and data analytics for national security.
10+ YOETop Secret/SCI clearance required; 10 years software development experience; OOP and multi-INT background; strong documentation and collaboration skills.
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2mo
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Mid-level Software Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Entegra Systems
Entegra Systems: Provides engineering and intelligence analysis for government missions.
6+ YOESix+ years in software development with at least four years in Java; Oracle PL/SQL; experience with Windows, UNIX/Linux; TS/SCI with poly clearance.
Java, Oracle PL/SQL, JDBC, Linux, Camel, JMS, Hadoop, REST, SOAP, ExtJS, OSGi, Aries Blueprint, Tibco, ActiveMQ, Oracle, Accumulo, Eclipse IDE
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3mo
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Software Engineer - Mid Level
Annapolis Junction, Maryland, United States
$132k-$165k/yr HybridFull Time
Boeing Intelligence & Analytics
Boeing Intelligence & AnalyticsNYSE: BA: Delivers intelligence, analytics, and cyber solutions for national security.
7+ YOEActive TS/SCI with Polygraph; Java; Agile; Jira/Confluence; AWS; Elasticsearch; Springboot; Kafka; Hibernate/JPA; development of web/mobile software; documentation.
Java, Jira, Confluence, React, CGI, Visual Basic, HTML, XML, AWS, Elasticsearch, Springboot, Kafka, Hibernate/JPA
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1w
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Early/Mid-Level Software Engineer
Idaho Falls, Idaho, United States
$79k-$195k/yr OnsiteFull Time
Idaho National Laboratory
Idaho National Laboratory: Conducts nuclear energy research and national security operations.
2+ YOEBachelor's in a related field or equivalent experience; 2+ years (level 2) or 5+ years (level 3) software development experience; experience with C/C++, Java, Python, Linux/Windows, CI/CD, and configuration management.
C, C++, Java, Python, Bash, Visual Studio, VS Code, Git, Jenkins, GitLab CI/CD, CMake, Maven, Gradle, Make, Docker, Kubernetes, VMware, DOORS, Jama Connect, Polarion, Jira, GitLab, GitHub Issues, Azure DevOps
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1mo
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Mid-level Software Engineer
Fairborn, Ohio, United States
$84k-$146k/yr OnsiteFull Time
AeroVironment
AeroVironmentNASDAQ: AVAV: Designs and manufactures unmanned aircraft and tactical missile systems.
4+ YOEBachelor's in CS/CE/Math, U.S. citizenship, ability to obtain TS/SCI, 4+ years software development experience, expertise with JavaScript/TypeScript, C++, Python, web/service design, containers, Kubernetes, and databases.
C++, Python, TypeScript, JavaScript, CSS3, HTML5, Angular, React Js, Java, Go, Elasticsearch, PostgreSQL, SQL, Kubernetes, Open Container Images, git, Gitlab CI/CD, Kafka
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