2mo
Save
Mark Applied
Hide
System Administrator
Bethesda, Maryland, United States
$85k-$95k/yr OnsiteFull Time
5+ YOE5+ years IT experience with server/datacenter operations, Active Directory, SQL Server, Java/SQL; bachelor’s in CS or equivalent experience; active U.S. secret clearance; strong communication and lifecycle management skills.
Microsoft Active Directory, SQL Server, Java, SQL, C#, C++
1mo
Save
Mark Applied
Hide
AWS Senior .NET Modernization Engineer
Baltimore, Maryland, United States
OnsiteFull Time
5+ YOE5+ years with C# and .NET; experience with .NET Framework and .NET Core/.NET 8; modernizing legacy enterprise applications; REST APIs, SQL Server, Git, Agile; strong communication and problem-solving.
.NET Framework, .NET Core, .NET 8, C#, ASP.NET, Docker, Kubernetes, Amazon EKS, SQL Server, Git, Terraform, CloudFormation, AWS CDK, AWS
2mo
Save
Mark Applied
Hide
Site Reliability Engineer II - CTJ - Top Secret
Redmond or Reston
$102k-$235k/yr HybridFull Time
1+ YOERequires active TS/TS-SCI clearance, Master's (1+ yr) or Bachelor's (2+ yrs) in CS/IT or equivalent experience; experience with large-scale cloud/distributed systems, programming in C#, Go, Java, or Python, CI/CD, automation, and on-call operations.
C#, Go, Java, Python, CI/CD, Microsoft Defender
3w
Save
Mark Applied
Hide
Senior Software Engineer (C#/.NET)
Arlington, Virginia, United States
$143k-$187k/yr HybridFull Time
5+ YOE5+ years .NET (C#) development experience, AWS/cloud and distributed system experience, REST/ASP.NET MVC, data modeling, familiarity with LLMs and observability; Bachelor’s degree required.
C#, .NET Framework, SQL Server, AWS, Web API, ASP.NET MVC, Lambda, DynamoDB, SQS, large language models (LLMs)
2mo
Save
Mark Applied
Hide
Software Safety Systems Engineer
Hanover, Maryland, United States
$94k-$141k/yr HybridFull Time
5+ YOEBS in engineering/science; 5+ years in systems/safety/software/quality; proficient in C/C++/C#/Python/Java; able to produce safety plans; able to obtain DoD clearance; US citizen.
C, C++, C#, Python, Java, MIL-STD-882, VectorCAST, Jira, Github
3w
Save
Mark Applied
Hide
Senior Software Engineer (C#/.NET)
Arlington, Virginia, United States
$143k-$187k/yr HybridFull Time
5+ YOE5+ years .NET (C#) experience, bachelor's degree, experience with large-scale distributed systems, cloud (AWS/Azure), RESTful APIs, telemetry/observability, and familiarity with LLMs or agent architectures.
C#, .NET, SQL Server, AWS, Web API, RESTful, ASP.NET MVC, Lambda, DynamoDB, SQS, LLMs, SQL
3w
Save
Mark Applied
Hide
Senior Cybersecurity Engineer (US Federal)
Reston, Virginia, United States
$160k-$239k/yr HybridFull Time
5+ YOEU.S. citizenship required. 5+ years infrastructure/DevOps/security experience, BS in computer-related field or equivalent, Terraform, Argo CD, AWS, Kubernetes experience, programming proficiency, and ability to obtain TS/SCI clearance.
Terraform, Argo CD, AWS, Kubernetes, C#, Python, Ruby, Rust, Go
2mo
Save
Mark Applied
Hide
Senior Economic Analyst
Washington, District of Columbia, United States
$75k-$96k/yr OnsiteFull Time
International Brotherhood of Teamsters: Labor union representing workers across diverse North American industries.
3+ YOEExperience with statistical/financial analysis, knowledge of labor relations, strong MS Office, VBA/macros/C#/C++, statistical software (R/Python/SPSS/Tableau), and understanding of labor unions.
Microsoft Office, VBA, Macros, C#, C++, R, Python, SPSS, Tableau, Salesforce
1mo
Save
Mark Applied
Hide
Senior Software Engineer ( DoD TS/SCI Clearance)
Columbia, Maryland, United States
OnsiteFull Time
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
1mo
Save
Mark Applied
Hide
2026 Graduate - Computer Engineer, Shipboard Systems Team
Laurel, Maryland, United States
$85k-$165k/yr OnsiteFull Time
Bachelor's or Master's in Computer Engineering (or related), familiarity with agentic coding for data analysis, proficiency with C#, Python, MATLAB, C++, JavaScript, ability to travel ~5%, and ability to obtain Interim Secret/Secret clearance (U.S. citizenship required).
C#, Python, MATLAB/Simulink, C++, JavaScript, SQL Server, Apache Parquet, Arrow, GitLab, Jira
1mo
Save
Mark Applied
Hide
Senior System Engineer – ArcGIS (Mission-Focused)
Vienna or St. Louis
$156k-$239k/yr OnsiteFull Time
12+ YOE12+ years experience architecting and administering enterprise ArcGIS and IT systems; US citizenship with active Top Secret/SCI clearance; bachelor's degree in CS, Math, GIS or STEM; proficiency with Python/PowerShell and RDBMS.
ArcGIS Enterprise, ArcGIS Desktop, ArcGIS Online, Portal for ArcGIS, ArcGIS Runtime, Python, PowerShell, Javascript, C#, SQL Server, Oracle, PostgreSQL, Windows, Linux
1mo
Save
Mark Applied
Hide
Senior Frontend Software Engineer - Ground Software
Laurel or Austin or Greenwood Village
$120k-$190k/yr HybridFull Time
6+ YOERequired: Bachelor's in CS or related, 6+ years frontend experience, deep React and TypeScript, design system and component library experience, Yarn/Babel/Material-UI, Git, REST APIs, mentoring ability, and ability to obtain security clearance.
React, TypeScript, C# .NET, Docker, Kafka, REST, Yarn, Babel, Material-UI, Git, TanStack Query, WebAssembly (WASM), WebGL
2w
Save
Mark Applied
Hide
Application Programmer - Software Developer - EG
Washington, District of Columbia, United States
$75k-$90k/yr HybridFull Time
3+ YOE3+ years MVC.NET/C#/Visual Studio experience, Microsoft DevOps, U.S. citizenship, active Secret clearance; experience with T-SQL, Bootstrap, RESTful services, JavaScript; Agile and Tier-3 support experience preferred.
MVC.NET, C#, Visual Studio, Microsoft DevOps, GIT, Bootstrap, Razor, HTML/CSS, T-SQL, PL/SQL, JavaScript
3w
Save
Mark Applied
Hide
Sr. Software Engineer/Technical Lead
Bethesda, Maryland, United States
OnsiteFull Time
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
2mo
Save
Mark Applied
Hide
Senior Systems Engineer
Vienna, Virginia, United States
OnsiteFull Time
5+ YOEBachelor’s in CS/Math/GIS or STEM; 5+ years in similar role; ArcGIS deployment/admin; Windows/Linux admin; scripting (Python/PowerShell/JavaScript/C#); networks; SQL/RDBMS skills; TS/SCI with SCI eligibility (active)
ArcGIS, ArcGIS Enterprise, ArcGIS Online, PowerShell, Python, JavaScript, C#, SQL, SQL Server, Oracle, PostgreSQL, Windows, Linux
1mo
Save
Mark Applied
Hide
Sr Manager, Software Engineering - Remote or Hybrid in MN or DC
Eden Prairie or Minneapolis or Washington or United States
$113k-$193k/yr HybridFull Time
8+ YOE2+ MgmtUndergraduate degree or 8+ years equivalent experience; 8+ years IT software development/DevOps; 5+ years web app and coding experience (C#, Java, Angular/React); SQL; GHEC and Azure DevOps; 2+ years cloud apps and leading teams; 10% travel.
C#, Java, Angular, React, SQL, GHEC, Azure DevOps
2mo
Save
Mark Applied
Hide
Mid-Level CNO Reverse Engineer
Annapolis Junction, Maryland, United States
$105k-$200k/yr OnsiteFull Time
8+ YOETS/SCI with polygraph; bachelor’s degree or 12 years experience; 8 years reverse engineering; 5 years in reverse engineering; 5 years in REDACTED; strong programming in multiple languages.
Assembly, C, C#, C++, Java, Perl, Python, Reverse engineering tools
2mo
Save
Mark Applied
Hide
Postdoctoral Fellow (PREP0004606)
Gaithersburg, Maryland, United States
$82k-$89k/yr OnsiteFull Time
Ph.D. in Mechanical Engineering or related field; familiarity with CONTAM and its APIs; programming in C, C#, Python, or Java; experience with Git/DevOps and CI/CD; agent-based AI development; strong oral and written communication; U.S. citizenship preferred.
CONTAM, CONTAM APIs, C, C#, Python, Java, Git, CI/CD
1w
Save
Mark Applied
Hide
OneStream Architect
Washington, District of Columbia, United States
$140k-$175k/yr OnsiteFull Time
3+ YOE3+ years OneStream experience, Bachelor's degree in related field, proficiency in VB.Net/SQL and integration with ERPs, strong communication and stakeholder engagement skills.
OneStream, VB.Net, SQL, C#, Python, REST API, SAP, Oracle Financials, Momentum, ERP
2mo
Save
Mark Applied
Hide
Junior Software Engineer
Chantilly, Virginia, United States
$94k-$198k/yr OnsiteFull Time
0+ YOEBachelor's degree in CS/Software Engineering/Information Systems; TS/SCI with Polygraph; strong software fundamentals; experience with Java, C#, Python, or JavaScript; willingness to learn enterprise platforms and PeopleSoft.
Java, C#, Python, JavaScript, PeopleSoft, Oracle, Git
Explore Jobs
Expand Your Job Search
Top Cities Near Rockville for Csharp
- Csharp jobs in Washington, DC
- Csharp jobs in Baltimore, MD
- Csharp jobs in Arlington, VA
- Csharp jobs in Alexandria, VA
- Csharp jobs in Frederick, MD
- Csharp jobs in Gaithersburg, MD
- Csharp jobs in Bowie, MD
- Csharp jobs in Leesburg, VA
- Csharp jobs in Manassas, VA
- Csharp jobs in Hagerstown, MD
- Csharp jobs in Annapolis, MD
- Csharp jobs in College Park, MD
- Csharp jobs in Laurel, MD
- Csharp jobs in Herndon, VA
- Csharp jobs in Greenbelt, MD
- Csharp jobs in Fairfax, VA
- Csharp jobs in Westminster, MD
- Csharp jobs in Hyattsville, MD
- Csharp jobs in Takoma Park, MD
- Csharp jobs in Vienna, VA