3,421 senior software developer jobs at 820 companies in Round Hill, VA
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Senior Software Developer - IT
Silver Spring, Maryland, United States
$83k-$97k/yr OnsiteFull Time
Senior Java developer with Spring, REST, open-source tech, SDLC, and architectural leadership; mentoring and collaboration required.
Java, Spring, REST, Git, Open Source
3mo
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Senior Software Developer
Washington, District of Columbia, United States
$155k-$165k/yr OnsiteFull Time
7+ YOE7+ years software development; frontend in JavaScript/React/TypeScript; Python backend; AWS (Lambda, API Gateway, AppSync, DynamoDB, RDS, CloudFormation); REST/GraphQL APIs; CI/CD; SQL; testing.
AWS, Lambda, API Gateway, AppSync, DynamoDB, RDS, CloudFormation, REST, GraphQL, SQL, CI/CD, Git
2mo
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Senior Software Engineer
Reston, Virginia, United States
OnsiteFull Time
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
1mo
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Software Developer, Senior
Potomac or United States
OnsiteFull Time
5+ YOEU.S. citizenship and active TS/SCI clearance with full scope polygraph required; senior-level software development experience, agile development, system modernization, mentoring and possible team supervision.
2mo
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Senior Software Engineer
Los Angeles or Washington or San Francisco or San Diego or Seattle or London
$130k-$220k/yr OnsiteFull Time
3+ YOE3+ years software development; strong Python; Azure cloud; on-call production support; must be a U.S. Person; ability to obtain security clearance.
Python, Azure, Git, CI/CD, Docker, Kubernetes, TypeScript, Java, Bash, Rust, Node.js
3mo
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Senior Software Engineer
Washington or Boston
$129k-$194k/yr OnsiteFull Time
Strong Python, distributed systems, cloud platforms, AI/ML, LLMs, autonomous agents, senior IC.
Python, AWS, GCP, Azure, Jira, Git, LLMs, AI agent tooling
2mo
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HP100 Senior Scientific Software Developer
Greenbelt, Maryland, United States
OnsiteFull Time
10+ YOESenior software developer with 10 years of scientific programming; Linux; languages: IDL, HTML, Fortran, C, Java, JavaScript, Python; able to obtain Tier 1 background investigation; US citizenship or permanent residency.
IDL, Fortran, C, Java, JavaScript, Python, HTML, Linux, Git
3mo
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Senior Software Engineer
Herndon, Virginia, United States
OnsiteFull Time
8+ YOE8+ years backend software engineering; cloud deployments in cleared environments; Top Secret/SCI clearance; AWS expertise; DevOps; containerization; CI/CD; CloudFormation.
AWS, Docker, Kubernetes, CloudFormation, Lambda, ECS Fargate
6d
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Software Developer, Senior
Herndon or Virginia or United States
$133k-$226k/yr OnsiteFull Time
6+ YOERequires 6+ years of software development experience, a related technical bachelor's degree or equivalent, object-oriented programming, enterprise applications, databases, testing, debugging, and software lifecycle experience.
C#, .NET, Java, Kotlin, C++, PowerShell, Microsoft Windows, IIS, Jenkins, AWS, Microsoft Azure, GitHub, Jira, Confluence
2mo
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Senior Cloud Software Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
8+ YOEEight+ years in software development; experience with OpenSource NoSQL; MapReduce/Hadoop ecosystem; HDFS; JSON/BSON; OO design; software integration/testing; technical writing; data analytics; Restful services; Hadoop/Cloud development certification.
Java, Hadoop, Accumulo, HBase, BigTable, Hive, Pig, JSON, BSON, RESTful services, Windows, UNIX, Linux, C, C++, MapReduce, HDFS, XML, YARN
3mo
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Senior Software Engineer
Annapolis Junction, Maryland, United States
$189k-$243k/yr OnsiteFull Time
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
6d
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Senior Software Developer
Arlington, Virginia, United States
$150k-$170k/yr OnsiteFull Time
10+ YOE3+ MgmtBachelor's degree in computer science or related field, 10+ years of software development experience, 3+ years as a lead developer, Secret clearance, IAT Level II, and computing environment certification.
C#, Java, SQL, HTML, jQuery, Bootstrap, XML, JSON, JavaScript, CSS, .NET Core, ASP.NET, Identity framework, Entity Framework, MVC (Model, View, Controller), Blazor, FluentUI, SQL Server, Git, CI/CD, AWS Cloud Native Services, CodeCommit, CodeBuild, CodeDeploy, CodePipeline, Elastic Container Registry, Elastic Container Service, Elastic Kubernetes Service, Agile
5h
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Senior Software Developer
Washington, District of Columbia, United States
$106k-$164k/yr RemoteFull Time
10+ YOEBachelor's degree and 10+ years in enterprise software development, including 5+ years independently designing architectures. Requires AWS, full-stack development, APIs, Docker, DevSecOps, and leadership expertise.
Node.js, Python, Java, JavaScript, AWS, Amazon EC2, Amazon ECS, Amazon EKS, AWS Lambda, Amazon API Gateway, Amazon RDS, Microsoft SQL Server, PostgreSQL, Amazon S3, AWS IAM, Amazon CloudWatch, Amazon SNS, Amazon SQS, AWS Secrets Manager, Amazon VPC, OpenAPI, Swagger, Docker, Kubernetes, OpenShift, Terraform, AWS CloudFormation, ArcGIS, ESRI, GitHub Copilot, ChatGPT Enterprise, Amazon Q, Claude
3mo
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Senior Software Developer
Arlington, Virginia, United States
$100k-$180k/yr HybridFull Time
5+ YOELead design and development of complex software; 5–8+ years; Java, C#, Python; cloud/DevOps; security/compliance.
Java, Spring, ASP.Net, Python, JavaScript, TypeScript, SQL, NoSQL, React, Angular, Vue, Node.js, .NET, Docker, Kubernetes, Git, Jira, SAFe, AWS, Azure, GCP, Terraform, Jenkins, GitLab CI/CD, SonarQube, GraphQL, REST API
2mo
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Senior Software Engineer
Quantico, Virginia, United States
OnsiteFull Time
6+ YOEActive TS/SCI clearance; BS in CS/CE/SE/EE/Info Security; 6+ years software/ops; 4+ years in CNO; 2+ years automation (Python/Bash/PowerShell/Ansible); Linux admin; Git/Jira/GitLab; Docker/Podman; leadership; able to work independently.
Python, Bash, PowerShell, Ansible, Linux (Ubuntu, Rocky Linux), Git, Jira, GitLab, Docker, Podman, Docker Compose
1mo
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Senior Software Developer
Herndon, Virginia, United States
HybridFull Time
5+ YOE5+ years software development experience, bachelor's in CS or related, proficiency in object-oriented design, REST APIs, client-side development, SQL/T-SQL and SSIS; TS/SCI with CI polygraph required.
JavaScript, jQuery, Angular 4, Ajax, HTML5, XML, SQL, T-SQL, SSIS, REST
2mo
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Senior Software Developer
Washington, District Of Columbia, United States
OnsiteFull Time
7+ YOEMinimum 7 years software development experience; proficiency with Java, .NET, Python, or JavaScript; experience with CI/CD, secure coding, Agile/DevSecOps, and software lifecycle practices; strong problem-solving and collaboration skills for classified federal environments.
Java, .NET, Python, JavaScript, CI/CD
3w
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Software Developer, Senior
Herndon, Virginia, United States
$87k-$198k/yr OnsiteFull Time
6+ YOE6+ years software development experience, legacy enterprise and microservices experience, Agile, Python and Git familiarity, TS/SCI clearance with polygraph required.
Python, Java, JavaScript, React, Angular, NodeJS, AWS, Azure, Google Cloud Platform, Git
2mo
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Software Developer, Senior
McLean, Virginia, United States
$87k-$198k/yr HybridFull Time
3+ YOE3+ years software development in Java/Python; 1+ year ATAK/TAK; native Android; SQLite; Secret clearance eligibility; HS diploma.
Java, Python, Android, SQLite, ATAK, TAK, Kotlin
2mo
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Senior Software Engineer (Leadership) 2026-0138
Chantilly, Virginia, United States
OnsiteFull Time
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
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