3,505 software developer jobs at 619 companies in Thurmont, MD
2mo
Save
Mark Applied
Hide
Software Developer
Sterling, Virginia, United States
OnsiteFull Time
TS/SCI with Polygraph required Day 1; strong software development skills with proficiency in JavaScript, Java, ASP.NET or scripting languages; experience with software lifecycle, security patching, and vulnerability assessment.
SCRUM Agile, JavaScript, Java, ASP.NET, Perl, PHP, Ruby on Rails, Flex, Silverlight, Google Earth Plugin
3mo
Save
Mark Applied
Hide
Software Developer
Herndon or Chantilly
$185k-$240k/yr OnsiteFull Time
6+ YOEActive TS/SCI with Full-Scope Polygraph, 6+ years software development, experience with Java/Python/C++/JavaScript, APIs, Git, Agile; cloud, DevOps, containerization preferred.
Java, Python, C++, JavaScript, AWS, Azure, Docker, Kubernetes, Git, REST APIs, CI/CD Tools, DevOps
1mo
Save
Mark Applied
Hide
Software Developer
Herndon, Virginia, United States
OnsiteFull Time
3+ YOEActive security clearance with polygraph; 3+ years software development experience or bachelor's degree; proficiency in JavaScript/Java/ASP.NET and scripting languages; experience with application security, accreditation, and SCRUM.
SCRUM, JavaScript, Java, ASP.NET, Perl, PHP, Ruby on Rails, Flex, Silverlight, Google Earth Plugin
2mo
Save
Mark Applied
Hide
Software Developer
Chantilly or Potomac
OnsiteFull Time
Software engineer to design and build cloud-based systems; develop, test, and debug cloud-native applications; work with Python, Java, JavaScript; experience with serverless functions and web UI.
Python, Java, JavaScript, React, Node.js, AWS, CloudWatch, CloudTrail, Terraform, Ansible, Kubernetes, Linux, Bash
2mo
Save
Mark Applied
Hide
Software Developer
Herndon, Virginia, United States
$156k-$234k/yr OnsiteFull Time
5+ YOE5+ years software development experience; strong proficiency in Typescript, React, Nextjs, and Python; experience with cloud-hosted web applications; active TS/SCI with polygraph required; Agile team experience.
Typescript, React, Nextjs, Python
3mo
Save
Mark Applied
Hide
Software Developer
Herndon, Virginia, United States
$112k-$179k/yr OnsiteFull Time
5+ YOETS/SCI with polygraph or ability to obtain; 5+ years software development; .NET, HTML, C#; DevOps tools; SQL Server; JavaScript; CSS; cross-browser code; strong teamwork and communication.
.NET, HTML, C#, JavaScript, Git, Azure DevOps, SQL Server, CSS
1mo
Save
Mark Applied
Hide
Software Developer
McLean, Virginia, United States
OnsiteFull Time
3+ YOE3+ years software development experience, Bachelor's in Engineering or related field required; strong Python backend (FastAPI, Pydantic, SQLAlchemy), React/TypeScript frontend, SQL experience, testing and CI/CD familiarity.
Python 3, FastAPI, Pydantic, SQLAlchemy, SQLite, PostgreSQL, Microsoft SQL Server, Alembic, React, TypeScript, Vite, Material UI, React Router, React Hook Form, Zod, pytest, Playwright, GitHub Actions, npm, uv, Docker, Bicep, PowerShell, Git, GitHub, Node.js, ESLint, Prettier, Ruff, Pyright
3d
Save
Mark Applied
Hide
Software Developer, Expert
Herndon or McLean or United States
OnsiteFull Time
11+ YOERequires 11+ years of software development experience and a technical bachelor's degree or equivalent. Must know object-oriented programming, software design, databases, testing, and enterprise applications.
C#, .NET, Java, Kotlin, C++, Microsoft Windows, PowerShell, IIS, Jenkins CI/CD, AWS, Microsoft Azure, GitHub, Jira, Confluence, Git
3d
Save
Mark Applied
Hide
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
3d
Save
Mark Applied
Hide
Software Developer
Reston, Virginia, United States
OnsiteFull Time
8+ YOEBachelor's degree in a related field, 8 years of Agile software development integrating front and back ends, secure application coding/testing/deployment, and Intelligence Community experience; U.S. citizenship and Top Secret/SCI Polygraph eligibility required.
Agile
1mo
Save
Mark Applied
Hide
Software Developer
Annapolis Junction, Maryland, United States
OnsiteFull Time
3+ YOEBachelor's degree and 3+ years experience (Master's may substitute), active TS/SCI with poly required, experience with C/C++, Python, assembly, and Linux/Windows/Mobile platforms; software development, testing, reverse engineering, and vulnerability research.
Windows, Linux, C/C++, Python, Assembly
3mo
Save
Mark Applied
Hide
Software Engineer
Annapolis Junction, Maryland, United States
$130k-$250k/yr OnsiteFull Time
0+ YOEBachelor’s degree in Computer Science or related discipline; 0–7 years software development; Java, Python, C++, Linux; understanding of SDLC.
Java, Python, C++, Linux
3w
Save
Mark Applied
Hide
Software Engineer
Columbia, Maryland, United States
$115k-$160k/yr OnsiteFull Time
3+ YOEActive Top Secret/TS-SCI clearance with polygraph, bachelor's in technical discipline or 4+ years equivalent, 3+ years software development with strong Python, experience with production applications, stream processing and AI development concepts.
Python, PydanticAI, Langgraph, DeepAgents, Apache Kafka, Elasticsearch
3mo
Save
Mark Applied
Hide
Software Engineer
Herndon, Virginia, United States
$130k-$265k/yr OnsiteFull Time
4+ YOE4-7+ years in software development across data, application, and UI layers; APIs, cloud, and data tooling experience; TS/SCI clearance.
Java, C#/.NET, SQL, JavaScript, HTML, XML, Python, R, Spark, Apache Iceberg, EMR, NiFi, Kubernetes
1mo
Save
Mark Applied
Hide
Software Developer
Bethesda, Maryland, United States
$104k-$218k/yr OnsiteFull Time
8+ YOERequires active TS/SCI with Polygraph, 8+ years relevant experience (or higher experience with lower degrees), Agile/Scrum experience, strong independent problem solving, lifecycle software development, and proficiency with WordPress, SharePoint, JavaScript, HTML/CSS, REST APIs, React and/or Angular.
WordPress, SharePoint, JavaScript, HTML/CSS, REST APIs, React, Angular, ServiceNow, AWS EC2, AWS S3, AWS CloudFormation, AWS CloudWatch, Git, GitLab, CI/CD
3w
Save
Mark Applied
Hide
Software Engineer
Arlington or McLean
$69k-$158k/yr OnsiteFull Time
2+ YOE2+ years software development experience, bachelor's degree, ability to obtain Secret clearance, experience with C#, Web API, CI/CD and containerization preferred.
C#, Web API, Java, Python, JavaScript, Angular, React, NodeJS, .NET Framework, .NET 5, .NET 8, .NET 10, Docker, Jenkins, GitHub Actions, Azure DevOps
1mo
Save
Mark Applied
Hide
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
1w
Save
Mark Applied
Hide
Software Engineer
Hunt Valley, Maryland, United States
$86k-$115k/yr HybridFull Time
5+ YOEBachelor's degree in computer science or related field, 5+ years software engineering experience, API and full-stack development experience, familiarity with Agile, testing, and cloud paradigms.
.NET (C#), SQL, HTML, CSS, JavaScript, NodeJS, Angular, React, Vue, Azure DevOps, Git, MS SQL Server, Typescript, REST API, HTTP, Java
2d
Save
Mark Applied
Hide
Software Engineer
Bethesda or Colorado Springs
$120k-$140k/yr HybridFull Time
2+ YOERequires 2+ years with Linux and C++17, software design and development experience, Git, CMake, and strong analytical skills. Bachelor's degree in a related technical field required.
C++, Linux, Git, CMake, Boost, Google Test, Google Mock, Python
1mo
Save
Mark Applied
Hide
Software Engineer
Annapolis Junction, Maryland, United States
$96-$108/hr OnsiteFull Time
14+ YOEExperience developing complex software systems using Java and Spring Boot, Linux, web services/APIs, SQL, Git, and container technologies; TS/SCI with polygraph required.
Java, Spring Boot, Linux, API, SQL, Git, Docker, JavaScript, ReactJS, Apache Kafka, Apache NiFi, Docker Compose, Maven, Jira, Confluence, Atlassian
Explore Jobs