C# Jobs in Fairfax, VA

Refine Results
41 - 60 of 477 Jobs

Senior Software Engineer - CTJ - Poly

Microsoft Corporation

•

Reston, Virginia, USA

Full-time

Security represents the most critical priorities for our customers in a world awash in digital threats, regulatory scrutiny, and estate complexity. Microsoft Security aspires to make the world a safer place for all. We want to reshape security and empower every user, customer, and developer with a security cloud that protects them with end to end, simplified solutions. The Microsoft Security organization accelerates Microsoft's mission and bold ambitions to ensure that our company and industry i
Posted 20 days ago | Updated 11 hours ago

.NET Developer

Motion Recruitment Partners, LLC

•

Reston, Virginia, USA

Full-time

A nonprofit leader in the healthcare space, is seeking a talented Full-Stack .NET Developer for a long-term contract opportunity. Based in Reston, VA, this company is pioneering the future of medical imaging by advancing how MRIs are scanned and interpreted. You'll work with tools including .NET Core, Angular 8+, and AWS to build solutions that directly impact patient care and medical safety. You will use your software development skills to improve the way doctors diagnose and treat patients. Th
Easy Apply
Posted 26 days ago | Updated 7 hours ago

Senior Application Developer

Motion Recruitment Partners, LLC

•

Arlington, Virginia, USA

Full-time

We're working with a mission-driven organization in Washington DC that's looking to bring on a Senior Application Developer. The team is focused on delivering high impact tools and data driven products for the credit union industry. The tech stack includes C#, .NET, Angular 17, TypeScript, and SQL. This is a full-time hybrid role with four days a month onsite. This is a great role for someone who wants to work on meaningful products in a stable and collaborative environment. The team is small an
Easy Apply
Posted 60+ days ago | Updated 6 hours ago

Senior Software Engineer

Motion Recruitment Partners, LLC

•

Arlington, Virginia, USA

Full-time

A fast-growing startup based in Ballston, VA, specializing in retail energy sales and digital petition tracking is looking for a mid-to-senior Full-Stack Developer with strong skills in .NET and React for a full-time position. You'll be working primarily onsite four days per week in their Ballston office, with flexible hours and a casual, tech-startup atmosphere. This company has built an ecosystem of digital tools used by energy reps in the field and they've recently expanded into the political
Easy Apply
Posted 26 days ago | Updated 7 hours ago

Applications Developer-

SilverEdge

•

Chantilly, Virginia, USA

Full-time

Overview SilverEdge is a premier provider of innovative cyber, software, and intelligence solutions, addressing mission-critical challenges for the Department of Defense (DoD), Intelligence Community (IC), and beyond. We are dedicated to delivering impactful results to meet mission goals through cutting-edge technology and expertise. We are seeking a Applications Developer to join our dynamic team. This individual will play a pivotal role in developing innovative and effective solutions for our
Posted 55 days ago | Updated 11 hours ago

Software Engineer

Motion Recruitment Partners, LLC

•

Arlington, Virginia, USA

Full-time

A leading real estate investment trust based in Arlington, VA is hiring a full-time, senior-level software engineer to help rebuild its digital and data platform from the ground up. This is a hybrid position with 1-3 days onsite per month. You'll be working with modern technologies including C#, .NET Core, Angular, TypeScript, and AWS. This is a rare chance to join a complete digital transformation from the ground up at a massive scale. The company is overhauling its legacy systems and building
Easy Apply
Posted 45 days ago | Updated 7 hours ago

Enterprise Data Engineer

Accenture LLP

•

Chantilly, Virginia, USA

Full-time

At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people. Our 13,000+ people are united in a shared purpose to pursue the limitless potential of technology and ingenuity for clients across defense, national security, public safety, civilian, and military health organizations. Join Accenture Federal Services, a technology company and part of global Accenture, to do work that matters in a collaborative
Posted 22 days ago | Updated 11 hours ago

Software Engineer II

Sierra Nevada Corporation

•

Remote or Herndon, Virginia, USA

Full-time

SNC can only hire in these states: AL, AK, AZ, CA, CO, FL, GA, HI, ID, IL, IN, KS, KY, LA, MD, MA, MI, MN, MS, MO, MT, NE, NV, NH, NJ, NM, NC, OH, OK, OR, PA, SC, TN, TX, UT, VA, WA, WV, WI. Do you enjoy developing new products and services? Join us! Our Software Engineers work in an agile, collective environment. You will be using your skills and expertise to define, design, develop, test, certify and improve cutting-edge software products. These cover a very wide range from advanced mission p
Posted 6 days ago | Updated 11 hours ago

Senior Software Engineer

Motion Recruitment Partners, LLC

•

Arlington, Virginia, USA

Full-time

A national non-profit in the education/higher education admission process is hiring a Senior Software Engineer. This will be a remote position but the candidate must be able to work EST and living in the United States. This position plans, develops, modifies, and tests software components using .NET technologies within an Amazon Web Service and Agile development environment to create new products and enhance existing software systems. You'll be working with C#, .NET Core, Angular 8+ and working
Easy Apply
Posted 22 days ago | Updated 7 hours ago

Software Developer

Motion Recruitment Partners, LLC

•

Arlington, Virginia, USA

Full-time

A mission-driven research and data organization headquartered in Arlington, VA is seeking a Software Developer to join their growing Technology Solutions team. This is a hybrid role. This full-time position is focused on building, testing, and deploying scalable, data-centric applications and APIs that directly support national initiatives in education, health, and workforce policy. You'll use technologies like C#, .NET, SQL, and AWS in a collaborative, agile environment. This role is a unique o
Easy Apply
Posted 50 days ago | Updated 6 hours ago

Senior Software Engineer - Level 7

PTR Global

•

Arlington, Virginia, USA

Full-time

Senior QA Engineer - 45361-1 Arlington, VA - Onsite from Day One 2+years contract Ideal Candidate Qualifications: 6+ years of experience as a QA Engineer, Software Engineer in Test, Test Automation Engineer or Developer, leveraging software QA tools and processes 4+ years of experience with a variety of different testing techniques such as test planning, UI testing, automated testing, analytic testing, or test-driven development strategies. 4+ years of experience with C#, React/Redux, Seleni
Easy Apply
Posted 16 days ago | Updated 7 hours ago

Software Engineer

Motion Recruitment Partners, LLC

•

Arlington, Virginia, USA

Full-time

We're working with a cybersecurity-focused organization based in Reston, VA that's building software and biometric solutions used in global security efforts. This is a full-time, onsite Software Engineer role working on microservices-based systems designed for real-time threat detection and identity screening. The tech stack includes C#, .NET/.NET Core, SQL, and React. You'll be working across both new development and ongoing enhancements to existing systems. This is a great opportunity for some
Easy Apply
Posted 60+ days ago | Updated 6 hours ago

Software Developer

Motion Recruitment Partners, LLC

•

Arlington, Virginia, USA

Full-time

A leading healthcare technology company located in Arlington, VA is seeking a Software Engineer to join their innovative team focused on improving the efficiency and accuracy of healthcare claims processing. This is a full-time hybrid position. You'll work on a modern, cloud-based application built with Angular 8, .NET Core, and AWS, contributing to ongoing feature enhancements, system modernization, and new functionality. This role offers the chance to make meaningful contributions to a tech-dr
Easy Apply
Posted 51 days ago | Updated 6 hours ago

AWS / Angular Software Applications Developer- TS/SCI with Polygraph

General Dynamics

•

McLean, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Software Development Job Qualifications: Skills: Git, GitHub, HTML5, Sass (Stylesheet Language) Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: Deliver simple solutions to complex problems as a Tools Developer/Application Develop
Posted 6 days ago | Updated 11 hours ago

Software Engineer in Test

Jobot

•

Rockville, Maryland, USA

Full-time

A rapidly growing 500 person Bio-tech company is currently looking for multiple Software Engineers in Test!! This Jobot Job is hosted by: Ryan Sullivan Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $100,000 - $130,000 per year A bit about us: A mid-sized 900 person Bio-tech company is currently hiring for multiple Software Engineers in Test at all level to join their rapidly growing engineering team! The company does a mix of manual and a
Posted 2 days ago | Updated 7 hours ago

Offensive Security Engineer

Costar Group

•

Arlington, Virginia, USA

Full-time

Offensive Security Engineer Job Description Offensive Security Engineer Overview CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, CoStar Group is on a mission to digitize the world's real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives. We have been living and breathing the wo
Posted 17 days ago | Updated 10 hours ago

Software Engineer

Redhorse Corporation

•

Chantilly, Virginia, USA

Full-time

About the Organization Now is a great time to join Redhorse Corporation. We are a solution-driven company delivering data insights and technology solutions to customers with missions critical to U.S. national interests. We're looking for thoughtful, skilled professionals who thrive as trusted partners building technology-agnostic solutions and want to apply their talents supporting customers with difficult and important mission sets. About the Role Redhorse is transforming how the government
Posted 2 days ago | Updated 7 hours ago

Automation Developer (RPA/UiPath)

Metric5

•

Washington, District of Columbia, USA

Full-time

Job Description Roles & Responsibilities: Be responsible for the full development lifecycle of RPA and cognitive automation solutions, including design, code, testing, and deployment. Provide full operations and maintenance (O&M) lifecycle support for deployed automations, including post-production support and change management. Utilize modern development methodologies including Agile, DevOps, TDD, and CI/CD pipelines. Develop, modify, and operationalize software capabilities on both on-premise
Posted 1 day ago | Updated 7 hours ago

Dot.Net Sr Developer/EAM Technical Architect Mid

Lumen Solutions Group Inc.

•

Washington, District of Columbia, USA

Contract

Position Title: Dot.Net Sr Developer/EAM Technical Architect Mid Skill Set: Essential Duties & Responsibilities Design, build, and maintain .Net applications, responsible for both front-end and back-end development. Conduct code reviews, provide feedback, and support team improvements. Write and maintain high-quality code, ensuring adherence to best practices. Write clean code for both front and back-end, optimizing performance, ensuring code quality, and staying updated with emerging technol
Easy Apply
Posted 2 days ago | Updated 5 hours ago

Software Engineer

Costar Group

•

Arlington, Virginia, USA

Full-time

Software Engineer Job Description CoStar Realty Information, Inc. seeks a Software Engineer to design and build distributed API-driven user systems. Produce robust, efficient, and maintainable code using object-oriented programming languages. Drive and maintain software design, development standards, and code reviews. Evaluate emerging technologies to identify opportunities, trends, and best practices that can be leveraged to strengthen CoStar's technology platform and develop standard practic
Posted 28 days ago | Updated 10 hours ago