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Leesburg • 50 milesRemote · Hybrid · Onsite · Field · All Environments

Leesburg • 50 milesRemote · Hybrid · Onsite · Field · All Environments

Leesburg • 50 milesRemote · Hybrid · Onsite · Field · All Environments

Leesburg • 50 milesRemote · Hybrid · Onsite · Field · All Environments

640 dotnet jobs at 255 companies in Leesburg, VA

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1mo

Platform Architect and Engineering Lead

Atlanta or McLean

$87k-$198k/yr OnsiteFull Time

Booz Allen Hamilton

Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.

7+ YOE7+ years in software architecture/implementation, experience leading 20+ engineers, AWS and hybrid cloud architecture, Python/Dotnet/Java development, Linux/Unix and shell scripting, Gen-AI tool experience, bachelor's degree, ability to obtain Public Trust.

Python, Dotnet, Java, GitHub Copilot, Codex, Claude Code, AWS, Microsoft Azure, Linux, Unix

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1mo

Power Platform Engineer (Power Apps SME)

Washington or Reston

$140k-$170k/yr HybridFull Time

Improvix Technologies

Improvix Technologies: Provides IT solutions and mission support for federal agencies.

5+ YOE5+ years application development, 3+ years building enterprise Power Platform solutions (Power Apps, Power Automate, Dataverse, Power Fx); API and Azure integration experience; platform governance and security; active Secret clearance or ability to obtain; U.S. citizenship required.

Power Platform, Power Apps, Power Automate, Dataverse, Power Fx, .NET, Azure, Power BI, APIs, CI/CD, ALM

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1mo

Senior Software Engineer ( DoD TS/SCI Clearance)

Columbia, Maryland, United States

OnsiteFull Time

MartinFed

MartinFed: Provides cybersecurity and engineering solutions for federal missions.

7+ YOEUS citizen with active TS/SCI, Bachelor's degree, 7+ years experience, expertise in C#, Angular/AngularJS, Visual Studio, SQL Server, familiarity with AWS or Microsoft Azure, and ability to support mission-critical DoD/IC systems.

C#, Angular, AngularJS, HTML, CSS, JavaScript, Visual Studio, SQL Server, Team Foundation Server, Microsoft Azure DevOps, .NET Framework, .NET Core, Entity Framework, Windows Forms, Windows Server, Hyper-V, IIS, Node.js, Docker, AWS, Microsoft Azure

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1mo

Sr. Software Engineer/Technical Lead

Bethesda, Maryland, United States

OnsiteFull Time

Nextonic Solutions

Nextonic Solutions: Provides scientific and technology development services to federal agencies.

Design and implement web, application, and database architecture; develop RESTful APIs and web applications; support accessibility, security, cloud migration, CI/CD, and enterprise integrations for government systems.

Visual Studio, MVC, .NET, C#, SQL Server Data Tools, Python, Web API, Bootstrap, Angular Js, Ajax, JavaScript, CSS, JQuery, JSON, ServiceNow, nVision, NBS

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2mo

Senior Full-Stack Developer (.NET/Angular)

Arlington or Washington

OnsiteFull Time

Pioneering Evolution

Pioneering Evolution: Provides strategic acquisition and software solutions for defense organizations.

7+ YOEBachelor's degree, 7+ years full-stack experience with .NET Core, 3+ years Angular, RESTful API and microservices experience, PostgreSQL proficiency, experience in compliance-driven environments, mentoring experience, U.S. citizenship and active Secret clearance, on-site in Washington D.C. metro.

.NET Core, Angular, PostgreSQL, AWS, Azure, Docker, Kubernetes, CI/CD

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2d

Software Developer QA Tester

Arlington, Virginia, United States

$110k-$160k/yr OnsiteFull Time

Cayuse Holdings

Cayuse Holdings: Tribally-owned provider of IT and professional services.

4+ YOEBachelor's degree in computer science, software engineering, or related field; 4+ years in development or QA; HTML/CSS, programming, databases, REST, testing, and Secret clearance.

Microsoft SharePoint, HTML, CSS, C#, Java, JavaScript, .NET, RESTful services, Microsoft Office, Microsoft Word, Microsoft Outlook, Microsoft PowerPoint, Microsoft Excel, CI/CD

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3d

Software Developer - Mid

Washington, District of Columbia, United States

OnsiteFull Time

TMC Technologies

TMC Technologies: Provides engineering and IT services to government and defense clients.

5+ YOERequires 5+ years of software development, a bachelor's degree in computer science or related field, U.S. citizenship, active Top Secret clearance, .NET and production database experience.

.NET, Oracle, Git, GitLab, GitHub, Git Actions, SVN, C#, JavaScript, TypeScript, SQL, HTML, CSS, Metastorm BPM

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Senior Cloud Engineer

Reston, Virginia, United States

HybridFull Time

SES Space & Defense

SES Space & DefenseEuronext Paris / Luxembourg Stock Exchange: SESG: Provides secure, multi-orbit satellite communications for government and defense.

5+ YOE5+ years cloud engineering experience with AWS, infrastructure-as-code (Terraform/Ansible), CI/CD, containers, and software development using Golang, Python, or .NET Core.

AWS, Golang, Python, .NET Core, Terraform, Ansible, GitLab, Docker, Kubernetes, ScienceLogic SL1

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IT Subject Matter Expert (DC, Washington)

Washington, District of Columbia, United States

$133k-$181k/yr OnsiteFull Time

Sawdey Solution Services

Sawdey Solution Services: Provides engineering and technical services to government and defense agencies.

10+ YOE10+ years supporting integrated IT systems, bachelor\u0002s degree required, CISSP or CAP preferred, U.S. citizenship and background check required, .NET/SQL/IIS expertise and Microsoft Office proficiency.

PRIMO, .NET, SQL, IIS, Microsoft Word, Microsoft PowerPoint, Microsoft Excel, Microsoft Outlook

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1mo

Infrastructure/Systems Administrator

Sterling or Austin or Denver

$105k-$231k/yr OnsiteFull Time

CACI

CACINYSE: CACI: Provides information technology and professional services to government clients.

10+ YOEActive TS/SCI with polygraph, bachelor’s degree or equivalent, 10+ years related experience, extensive Linux experience, systems administration, patching, troubleshooting, documentation, and collaboration skills.

Linux, Puppet, Satellite, IPA, Nagios, Net App

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1mo

GIS Systems Engineer II

Suitland or Hanover

$81k-$120k/yr OnsiteFull Time

Oceaneering

OceaneeringNYSE: OII: Global provider of engineered services for offshore energy industries.

2+ YOE2+ years relevant experience with an Associates in Information Science/GIS/Computer Science or equivalent experience; experience with SQL/Python/JavaScript and geodatabases; ability to obtain Security+ and Top Secret clearance; U.S. citizenship required.

SQL, Python, JavaScript, Visual Basic, ESRI ArcMap, ESRI ArcPro, ESRI Portal, ESRI Enterprise GIS/Portal, ESRI topology tools, MapsSDK for JavaScript, .NET, SQL Database, Microsoft Word, Microsoft Excel, Microsoft PowerPoint

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2d

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2d

Software Developer IV – Marine Operations (MO)

Silver Spring, Maryland, United States

HybridFull Time

GAMA-1 Technologies

GAMA-1 Technologies: Provides IT, cloud, and security services to federal agencies.

10+ YOE3+ MgmtBachelor's degree in a related computing or STEM field, 10+ years of software development experience, 3–5 years of technical leadership, and advanced C#, .NET, JavaScript, SQL, database, SDLC, and integration expertise.

C#, .NET, .NET Core, ASP.NET, JavaScript, SQL, Microsoft Visual Studio, EHR, EMR, Microsoft Azure, AWS, DevSecOps, CI/CD, CMMI, SDLC, Agile

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2w

NCIS Business Objects Administrator | Active TS/SCI clearance

Quantico, Virginia, United States

$147k-$199k/yr HybridFull Time

General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.

10+ YOEActive Top Secret/SCI clearance, 10+ years software development experience, BusinessObjects/BOE/DS expertise, strong Oracle/SQL and Java skills, CompTIA Security+ and bachelor's in engineering (or equivalent experience).

BusinessObjects Data Services 4.3, BusinessObjects Business Intelligence 4.3, Tomcat, Oracle SQL, Java, Visual Studio, ASP.NET, BusinessObjects WebIntelligence, BusinessObjects Universe Designer, PL/SQL

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3mo

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3mo

Software Test Engineer, Intelligence Systems

Reston, Virginia, United States

$146k-$194k/yr OnsiteFull Time

Anduril Industries

Anduril Industries: Defense technology building autonomous military hardware and software.

7+ YOE7+ years full-stack software testing; Bachelor's in CS/CE; experience managing complex test plans, testing embedded/custom hardware and constrained (air-gapped) environments; ability to develop/execute test plans; active U.S. Top Secret SCI with Full Scope Polygraph.

Lattice OS, C, C++, React, .NET, Microsoft SQL Server

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2mo

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2mo

Senior Full Stack .NET Developer with Azure/Angular (On Site)

Washington, District of Columbia, United States

$68k-$140k/yr OnsiteFull Time

Cognizant

CognizantNASDAQ: CTSH: Provides IT consulting and technology services to global enterprises.

10+ YOE10+ years in .NET development; strong .NET Core, C#/VB.NET; Angular front-end; Azure cloud with DevOps; SQL Server; on-site in Washington, DC.

.NET, Angular, Azure, SQL Server, Docker, ADO.NET, Entity Framework, C#, VB.NET, SSRS

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2mo

Senior Full Stack .NET Developer with Azure/Angular (On Site)

Washington, District of Columbia, United States

$68k-$140k/yr OnsiteFull Time

Cognizant

CognizantNasdaq: CTSH: Provides global information technology and business process outsourcing services.

10+ YOE10+ years of .NET development; strong front-end (Angular) skills; Azure cloud and DevOps experience; SQL Server; hands-on in .NET Core; experience with REST APIs and microservices.

Azure, .NET, Angular, SQL Server, Docker, DevOps

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1mo

DevSecOps Engineer

Reston, Virginia, United States

OnsiteFull Time

BruckEdwards

BruckEdwards: Provides IT modernization and identity management for federal agencies.

Bachelor's in an IT field (May/Dec 2026 grads acceptable), U.S. citizenship, able to obtain Public Trust (NACI). Preferred: Python, Java, JavaScript, Bash, Microsoft .NET/M365/Azure, AWS, Linux (CentOS/Red Hat).

Python, Java, JavaScript, Bash shell scripting, Microsoft .NET, Microsoft Azure, Microsoft M365, Amazon AWS, Linux OS (CentOS/Red Hat), SharePoint, O365

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DSCA Full Stack Front-End Developer Mid (Software Development Analyst) - 29702

Arlington, Virginia, United States

$110k-$135k/yr RemoteFull Time

HII

HIINYSE: HII: Builds naval ships and provides global defense technology solutions.

2+ YOERequires Secret clearance, JavaScript framework experience, REST APIs, Agile methods, stakeholder collaboration, and qualifying education and experience; remote work requires Eastern Time Zone availability.

TypeScript, JavaScript, React, Angular, Vue, Context API, TanStack Query, Redux, SharePoint Framework (SPFx), SharePoint APIs, Microsoft Graph API, Power Apps, Power Automate, RESTful APIs, .NET, Python, Flask, Django, PnPjs, SharePoint REST API, Microsoft Power Platform, Power BI, CSS-in-JS, Git, CI/CD, SAFe, Scrum, Kanban

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2mo

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2mo

Full Stack Developer (22710)

Arlington, Virginia, United States

OnsiteFull Time

RenXTech

RenXTech: Technical and analytical support for national security missions.

U.S. citizenship and active TS/SCI required. Strong full-stack skills (JavaScript, Angular, TypeScript, Node.js, Java, Spring, Python). Experience with cloud (AWS/GovCloud), databases (MongoDB, PostgreSQL, DynamoDB, S3), DevOps and CI tools (Git/GitLab, Jenkins, SonarQube), containerization (Docker, Kubernetes), messaging (Kafka, JMS/SQS/SNS) and a...

AWS Cloud (GovCloud/C2S), Amazon Web Managed Services (AWS), AWS Lambda, Docker, Kubernetes, JMS, SQS, SNS, Kafka, Node.js, JavaScript, Angular, TypeScript, Java, Spring, Python, MongoDB, DynamoDB, PostgreSQL, S3, Redshift, Redis, Elasticsearch, JSON, SQL, PL/SQL, XML, NoSQL, jQuery, ASP.NET, LDAP, HTTP, REST, SOAP, RDBMS, Git, GitLab, Jenkins, SonarQube, Maven, Ansible, Chef, Linux/Unix, NiFi, Mocha, Chai, JUnit, NUnit, TestNG, Jira, Confluence

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Technical Lead / Solution Architect

Washington, District of Columbia, United States

$145k-$220k/yr HybridFull Time

Nationwide IT Services

Nationwide IT Services: Provides IT and management consulting services to federal government agencies.

10+ YOE5+ MgmtBachelor's in a technical field,10+ years software engineering/solution architecture,5+ years federal experience,5+ years technical lead experience,expertise with Azure/Microsoft 365/.NET/SQL,knowledge of FISMA/NIST/Zero Trust,able to obtain Public Trust.

Microsoft 365, Azure Government, Microsoft Azure, Power Platform, .NET, SQL Server, SharePoint Online, AWS, Microsoft Teams, Power Apps, Power Automate, Power Pages, Power BI, Dataverse, Entra ID (Azure AD), C#, .NET Framework, .NET Core, ASP.NET MVC, ASP.NET Core, REST APIs, Microservices, Entity Framework, PostgreSQL, Azure DevOps, Git, ARM/Bicep, Terraform, SBOM, NIST SP 800-53, Zero Trust

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