C# Jobs in Leesburg, VA

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Data Systems Engineer

Leidos

•

Chantilly, Virginia, USA

Full-time

Description POSITION TITLE Data Systems Engineer JOB DESCRIPTION The Data Systems Engineer is an integral member of a government/contractor team supporting our customer's operations organization. This role requires an individual with technical experience administering Linux servers within a virtual environment. The role requires implementing security compliance for the systems. The individual's work encompasses interfacing with advanced systems, with data processing capabilities across a mult
Posted 5 days ago | Updated 14 hours ago

Front-End Developer

Electronic Consulting Services, Inc (ECS Federal)

•

Fairfax, Virginia, USA

Full-time

Job Description ECS is seeking a Front-End Developer to work Remotely. We are currently seeking an organized, detailed oriented, and Front End Developer to join our team. This role will entail working closely with the client to understand needs and pain-points, and designing, configuring, and implementing technical solutions across a range of programming language, cloud platforms, and supporting infrastructure. Salary Range: $120,000 - $180,000 General Description of Benefits Responsibilities:
Posted 5 days ago | Updated 8 hours ago

Sr Specialist, Systems Integration Engineering

Harris Corporation

•

Ashburn, Virginia, USA

Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologie
Posted 17 days ago | Updated 10 hours ago

Sr Associate, Systems Integration Engineering

Harris Corporation

•

Ashburn, Virginia, USA

Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologie
Posted 17 days ago | Updated 10 hours ago

Specialist, Systems Integration Engineering

Harris Corporation

•

Ashburn, Virginia, USA

Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologie
Posted 17 days ago | Updated 10 hours ago

Site Reliability Engineer

Accenture LLP

•

Reston, 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 52 days ago | Updated 10 hours ago

.Net Software Engineer

Kforce Technology Staffing

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Remote or Washington, District of Columbia, USA

Full-time

RESPONSIBILITIES: Kforce has a client that is seeking a .Net Software Engineer in Washington, DC. Responsibilities: * Author software designs and ensure completion of all requirements coded to standard * .Net Software Engineer will participate in SCRUM, code review, architectural review, and design approval * Write high quality code for multiple platforms that achieve business and regulatory objectives * Perform complete testing of web applications * Participate in implementation planning, incl
Posted 6 days ago | Updated 16 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 17 days ago | Updated 8 hours ago

Engineering Technician (Secret Clearance)

Harris Corporation

•

Ashburn, Virginia, USA

Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologie
Posted 23 days ago | Updated 10 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
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Posted 40 days ago | Updated 7 hours ago

Software Engineer/Developer

Redhorse Corporation

•

Gainesville, 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 Corporation's Cyber Analytics team
Posted 8 days ago | Updated 8 hours ago

Software Engineer

Motion Recruitment Partners, LLC

•

Reston, Virginia, USA

Full-time

A fast-growing biometrics and cybersecurity company based in Reston, VA, focused on securing international borders through advanced technologies. This is a full-time opportunity to work onsite with cutting-edge tools such as C#, .NET Core, SQL Server, and cloud platforms like Azure. You'll help design and build the infrastructure behind biometric systems like eye and fingerprint scanners used across global airports and borders. You'll collaborate with a highly skilled team of engineers in a form
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Posted 46 days ago | Updated 7 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 government uses
Posted 17 days ago | Updated 8 hours ago

Associate, Software Engineer (Chantilly, VA)

Harris Corporation

•

Chantilly, Virginia, USA

Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologie
Posted 2 days ago | Updated 10 hours ago

Senior Engineering Manager / Software - Flight Simulation (Onsite)

RTX Corporation

•

Sterling, Virginia, USA

Full-time

Date Posted: 2025-07-09 Country: United States of America Location: HVA34: Sterling, VA 22640 Davis Dr , Sterling, VA, 20164-7104 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance: DoD Clearance: Secret Senior Engineering Manager / Software - Flight Simulation (Onsite) The Simulation & Training Solutions (STS) Software Engineering de
Posted 19 days ago | Updated 10 hours ago

Application/Cloud Developer

Nightwing

•

Sterling, Virginia, USA

Full-time

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in th
Posted 60+ days ago | Updated 10 hours ago

Engineering Technician (SECRET)

Harris Corporation

•

Ashburn, Virginia, USA

Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologie
Posted 60+ days ago | Updated 10 hours ago

Test Engineer III

BCforward

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Remote

Contract

Test Engineer BCforward is currently seeking Test Engineer as a Remote opportunity!! Position Title: Test Engineer Location: Remote Anticipated Start Date: 8/01/2025 Please note this is the target date and is subject to change. BCforward will send official notice ahead of a confirmed start date. Expected Duration: 03+ Months with possibility of extension. Job Type: Contract (>=40 HRS WEEKLY) Pay Range: $80 - $90/HR Please note that actual compensation may vary within this range due to
Posted 9 days ago | Updated 3 hours ago

Mid Level Full Stack .NET Developer - Angular Exp - Remote - W2

Outcome Logix LLC

•

Pittsburgh, Pennsylvania, USA

Contract

Job Summary: We are seeking a highly skilled and experienced Full Stack .NET Developer to join our team. The ideal candidate will bring deep technical expertise in the Microsoft technology stack and a strong understanding of front-end development using Angular. The role requires hands-on experience in developing, testing, deploying, and maintaining scalable applications. You should also be comfortable supporting applications outside business hours when necessary. Key Responsibilities: Design, de
Easy Apply
Posted 4 days ago | Updated 2 days ago

Application Developer

BCforward

•

Remote

Contract

BCforward is currently seeking a highly motivated Opportunity Application Developer 4in Redmond WA Position Title: Applications Developer 4 Location: Fully Remote Anticipated Start Date: - ASAP Please note this is the target date and it is subject to change. BCforward will send official notice ahead of a confirmed start date. Expected Duration: 12 Months Contract Job Type: Contract and Remote Pay Range: $70/hr. - $75/hr. Please note that actual compensation may vary within this range due
Posted 19 days ago | Updated 3 hours ago