C# Jobs in Fairfax, VA

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Software Engineer / Systems Administration

Lockheed Martin Corporation

Springfield, Virginia, USA

Full-time

Job Description Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready solutio

Senior Lead AI Engineer

Capital One

McLean, Virginia, USA

Full-time

Senior Lead AI Engineer Overview: At Capital One, we are creating responsible and reliable AI systems, changing banking for good. For years, Capital One has been an industry leader in using machine learning to create real-time, personalized customer experiences. Our investments in technology infrastructure and world-class talent - along with our deep experience in machine learning - position us to be at the forefront of enterprises leveraging AI. From informing customers about unusual charges t

Full stack web application developer

Systems Recruiters, LLC

Remote

Contract

Key Responsibilities Design, develop, and maintain scalable Blazor web applications (front-end and back-end) using C#, .NET, and DevExpress, hosted in Azure App ServicesDevelop modern applications with world-class UX to turn high volume of data into insights and actions.Participate in technical architecture, code reviews, and ensure adherence to cloud best practices, security, and reliability standardsAdminister and optimize application databases (Azure SQL) and resource usage within AzureChampi

Software Engineer (Sr.) (Cleared) IA-SWE

Kentro

Springfield, Virginia, USA

Full-time

Description Thank you for considering IT Concepts dba Kentro, where innovation drives opportunity and collaboration leads to success. Our dynamic community of experts is fully committed to advancing our customers' missions, fostering professional growth, and making a positive impact on our communities. Our transition to Kentro in 2025 reflects a rich legacy built upon the foundation of IT Concepts. Rather than leaving ITC behind, we confidently embrace a future centered around the Core of More

Data Solutions Engineer

Marencor

Remote

Full-time

the primary goal is to replace the legacy reporting function with a modern, scalable Data Operations Team (initially focusing on these four roles) that can deliver faster, more automated, and insight-driven reporting aligned with the organization s evolving data needs. Specifically, these four new hires will: Audit and rationalize 700+ legacy reportsBuild baseline executive and operational dashboardsIntroduce automation and standard templates to reduce manual report requests (currently over 200/

Full-stack Architect

Innova Solutions, Inc

Remote

Contract

Let Volt help move you forward Volt is immediately hiring for Full-stack Architect in Remote As a Full-stack Architect, you will: Key responsibilities: Hands on Experience in C# .NET Core and CosmosDB.Hands on Experience in .NET, .NET Core Web Application Development, Web APIsGood to have experience in React, AngularJS, NodeJSIn-depth knowledge of Web Application Life CycleGood understanding of REST APIs, Data Structures.Must have knowledge on CI/CDGood debugging and analytical skills.Must know

Development Consultant

Business Information Group

Remote

Full-time

ABOUT BUSINESS INFORMATION GROUP, INC ( big ) When technology changes every day, it s important to have an IT partner that delivers safe, reliable, and understandable solutions. For the past 30 years, BIG has helped hundreds of companies upgrade their technology to improve productivity, minimize downtime, and increase collaboration. Our mission? To be an extension of our client s business as their most trusted advisor, offering trusted technologies that provide comprehensive solutions for the bu

Sr. Software Engineer- Only Direct Hire

Sansar Tec

Remote

Full-time

Job SummaryWe are looking for a highly skilled and experienced Sr. Software Engineer to guide a team of developers in designing, building and maintaining scalable and secure applications on MS technology stack focusing on .Net C# on Azure cloud services with SQL Server as the database. This role requires strong technical leadership, hands-on development and collaboration across teams to ensure timely and high-quality software delivery.Responsibilities Lead the design, development, testing, deplo

Software Developer OCR

Prominent Technology

Remote

Contract

Prominent is looking for a Software Developer with OCR experience for a contract to hire. This position can be performed REMOTE! No visa sponsorship is available for this opportunity! C2C or 1099 not available for this opportunity! Required Skills/Experience OCR/Transact/IBML support and config/dev experience Proficient in Java and C# development Integration Development experience with COTS Applications IE- Work on integration using Json, XML, .NET and Java class library and test integration u

Senior Software Engineer, CLIP

eBay Inc.

Remote

Full-time

At eBay, we're more than a global ecommerce leader - we're changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. We're committed to pushing boundaries and leaving our mark as we reinvent the future of ecommerce for enthusiasts. Our customers are our compass, authenticity thrives, bold ideas are welcome, and everyone can bring their unique selves to work - every day. We're in this together, sustaining the futur

Software Development Engineer

American Systems Corporation

Remote or Arlington, Virginia, USA

Full-time

Overview AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of Information Technology, Test & Evaluation, Program Mission Support, Engineering & Analysis, and Training. Responsibilities As a Software Development Engineer with AMERICAN SYSTEMS you will have the opportunity to do the following: Database Architecture and Development: Design, develop, and implement robust database architectures, in

Senior Power Platform Canvas App Developer - REMOTE

Chandra Technologies, Inc.

Remote

Contract

Job Description: Crop to Crop resumes are accepted We are seeking a highly skilled and experienced Senior Power Platform Canvas App Contract Developer to join our dynamic team. The ideal candidate will have a strong background in developing and deploying Canvas Apps using Microsoft Power Platform. This role involves working closely with business stakeholders to understand requirements, design solutions, and implement high-quality applications that enhance business processes and drive efficiency.

DevOps Engineer

Costar Group

Arlington, Virginia, USA

Full-time

DevOps Engineer Job Description 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 world of real estate information and onlin

Cloud Solutions Architect

Akima, LLC

Herndon, Virginia, USA

Full-time

Designs and develops IT applications. Develops enterprise-level applications and custom integration solutions including major enhancements and interfaces, functions and features. Uses a variety of platforms to provide automated systems applications to customers. Provides expertise regarding the integration of applications across the business. Determines specifications, then plans, designs, and develops software solutions, utilizing appropriate software engineering processes either individually o

QA Analyst - Remote

Digitive LLC

Remote

Contract, Third Party

Title:QA Analyst Location:Remote Pay Rate :$30/hr on C2C Term:Contract Client is only considering Ex-CVS consultants Job Title- Test Analyst Job Description/ Responsibilities/ Years of experience- 4-5 years experience in Healthcare or a PBM desired. .NET C# experience as SDET Experience with CVS client Prioritize, manage multiple assignments, and direct the work of others to meet deadlines. Excellent communication (Verbal and Written) and collaboration skills. Superior organization, projec

SyteLine - Infor CloudSuite Industrial Consultant

KE Staffing

Remote

Contract

Looking for a Lead Developer with CSI and SyteLine experienceLead or Manager experience but needs to be hands-on in this roleNeeds to be Techno/FunctionalMust be customer facing / Business facing.Experience with Tickets.Net / C#, T-SQL Infor CloudSuite Industrial (SyteLine) Developer Infor OS, IDM, and IOM workflow i 5+ years of experience in Infor (CSI) / CloudSuite Industrial (SyteLine) development.Proficiency in Microsoft .NET technologies, including T-SQL, C#, and VB.Net.

Senior Software Engineer, Intelligence Systems

Aduril Industries

Reston, Virginia, USA

Full-time

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century's most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril's family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and c

Senior .Net Full-stack Lead/ Architect

Fiekon

Remote

Contract

Title: Senior .Net Full-stack Lead/ Architect Duration: 6+months Location; Remote We are seeking a seasoned Senior Full-Stack Lead/ Architect. who is passionate about building robust, scalable, and innovative solutions. The successful candidate will engage directly with the business to deeply understand unique challenges and drive end-to-end solutions from design through delivery, while mentoring team members and promoting software excellence. Responsibilities: Analyze business requirements to

Specialist, Integration/Test Engineer

Harris Corporation

Herndon, 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

Investran Developer

Benvia

Remote

Third Party, Contract

Title: Investran Developer Location: Remote supporting CST Hours Duration; 12 Months Rate: Negotiable No of positions; 2 Position Overview: As an Investran Developer, you will play a crucial role in designing, developing, and maintaining our Investran software platform. Investran is a comprehensive software suite tailored for private equity fund administrators and investment managers, enabling them to efficiently manage their investment lifecycle, fund accounting, investor reporting, and more. Y