C# jobs in Reston, VA

McLean, Virginia

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Today

Job Number: R0250433 SIGINT Tools Full Stack Developer The Opportunity: As a full stack developer, you can resolve a problem with a complete end-to-end solution in a fast, agile environment. If you're looking for the chance to not just develop software, but to create a system that will make a difference, we need you on our team. We're looking for an experienced developer like you with the skills needed to develop software and systems from vision to production-ready. This role is more than just

Full-time

USD 86,800.00 - 198,000.00 per year

Senior Software Engineer - CTJ - TS/SCI

Reston, Virginia

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Today

Overview Do you want to help operate and evolve the control plane at the heart of Microsoft Azure? The One Plane team delivers the services that form Azure's management layer, through which customers deploy, configure, and govern their resources. Central to this portfolio is Azure Resource Manager (ARM), the control-plane service underlying resource management across Azure. Our team brings these critical services to customers operating mission-critical workloads in highly secure and regulated

Full-time

USD 119,800.00 - 234,700.00 per year

Sr. Software Development Engineer - National Imagery

Vienna, Virginia

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Today

Overview Apply your software development education and experience as a senior member of our software development team. You will build and release Esri software technologies focused on the intersection between GIS, photogrammetry and remote sensing for the defense and intelligence communities. In this role, you will collaborate with a talented team of software developers and product engineers to create, build, test, and release advanced software technologies focused on imagery users. This is an

Full-time

USD 123,136.00 - 202,488.00 per year

Junior .NET Developer

Hybrid in Dale City, Virginia

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15d ago

Title: Junior .NET Developer Location: Charlotte, NC, onsite 4 days a week Duration: 6+ months with extension Compensation: $35-$39/hr Work Requirements: U.S. Citizen, GC Holders, or Authorized to Work in the U.S. We're seeking a motivated, hands-on Integration & Data Engineer I to join our technology team supporting our client. This is an excellent opportunity for an early-career developer looking to grow their skills in data engineering, software development, and cloud technologies. Working al

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Contract

Depends on Experience

Software Engineer II - CTJ - Poly

Reston, Virginia

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Today

Overview Microsoft has an exciting opportunity for a Software Engineer on the Microsoft Specialized Clouds / US Gov Clouds Security Confidential Trust Team. The Confidential Trust team is focused on bringing the power of Azure Confidential Computing to some of the world's most security-sensitive cloud environments. We help enable customers to run mission-critical workloads with greater confidence by protecting sensitive data and workloads, both when they are in use and at rest. Our work extends

Full-time

USD 102,100.00 - 202,200.00 per year

Senior Principal Software Developer

Springfield, Virginia

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Today

Job Title: Senior Principal Software Developer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of Travel Required: None Type of Travel: Local * * * The Opportunity: CACI is seeking a experienced Senior Principal Software Developer to support a mission-critical program for the National Geospatial-Intelligence Agency (NGA). In this role, you will utilize well-defined software processes, such as Agi

Full-time

USD 103,800.00 - 218,100.00 per year

- Full Stack Developer IV - .NET - DC, GA, TX, WA (Hybrid)

Hybrid in Washington, District of Columbia

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30+d ago

local to DC, GA, TX, WA Position: Full Stack Developer IV .NET Location: DC; GA; TX; WA (Hybrid) Eligibility: U.S. Citizen residing in the U.S.; ability to obtain Public Trust Job Summary: Seeking a senior Full Stack Developer with strong experience in C#, .NET, and ASP.NET Core to design, develop, test, and maintain secure, scalable web applications. Key Responsibilities: Develop full-stack applications using C#, .NET, ASP.NET Core, and REST APIs. Build business logic and da

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Contract, Third Party

Depends on Experience

Software Engineer II - Top Secret

Reston, Virginia

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Today

Overview 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

Full-time

USD 102,100.00 - 202,200.00 per year

Senior Software Engineer - CTJ - Poly

Reston, Virginia

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Today

Overview Join the Azure AI Platform air-gapped engineering team as a Senior Software Engineer and help bring advanced AI capabilities to some of Microsoft's most security-sensitive customers. Our team delivers Azure OpenAI, Microsoft Foundry, Azure Machine Learning, and Azure AI Services in sovereign and air-gapped cloud environments, enabling mission-critical government workloads through secure, reliable AI infrastructure. In this role, you will work across a broad portfolio of AI products, s

Full-time

USD 119,800.00 - 234,700.00 per year

V2X Systems Engineer

McLean, Virginia

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Today

The Leidos Health and Services Sector is seeking a V2X Systems Engineer, contingent upon contract award to work in McLean, VA. Candidates MUST: Have the ability to work full-time on-site in McLean, VA, and be able to obtain and maintain a Public Trust clearance (three years' continuous U.S. residency required) and a valid driver's license. Design the future of connected transportation-from concept to field deployment The future of transportation depends on engineers who can bridge big-pictur

Full-time

USD 95,000.00 - 130,000.00 per year

Sr. Software Engineer- CTJ- Poly

Reston, Virginia

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Today

Overview Microsoft has an exciting opportunity for a Senior Software Engineer in the Cloud+AI Azure Data Team. Microsoft's Azure Data engineering team is leading the transformation of analytics in the world of data with products like databases, data integration, big data analytics, messaging & real-time analytics, and business intelligence. Our products our portfolio include Microsoft Fabric, Power BI, Azure Synapse Analytics, Azure SQL Databases, Azure Cosmos Databases, Azure PostgreSQL, Azure

Full-time

USD 119,800.00 - 234,700.00 per year

Software Engineer - CTJ - TS (Cleared)

Reston, Virginia

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Today

Overview Join the Microsoft Specialized Cloud (MSC) team, where engineers build and operate highly secure cloud platforms, services, and developer experiences that support mission-critical workloads for U.S. Government customers. MSC software engineering teams design, develop, and evolve technologies that enable customers to operate at scale while meeting specialized security, compliance, and operational requirements. Drawing on expertise across distributed systems, cloud infrastructure, data,

Full-time

USD 85,400.00 - 168,100.00 per year

Senior Application Engineer / Architect

Hybrid in Bethesda, Maryland

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Today

Requirements 8 years or more of hands-on application engineering experience using Azure, C#/.NET, Python, and enterprise application architecture. Proficiency in Microsoft Azure application development, including cloud-native services, APIs, integrations, security, and deployment. Experience with C#/.NET, Python, React, REST APIs, data-access components, and reusable application frameworks. Experience with Microsoft Power Apps, Power Automate, low-code development, workflow automation, and appli

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Contract

Depends on Experience

2027 Sophomore Internship Program - Software Engineer Intern, Ashburn

Ashburn, Virginia

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Today

About Us Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid. At Visa, you'll have the opportunity to create impact at scale - tackling meaningful challenges, growing your skills and seeing your contributions impact lives around the world. Join Visa and do work that

Full-time

USD 41.00 - 48.00 per hour

Software Development Lead

Bethesda, Maryland

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Today

Evolver is an information technology, cybersecurity, and digital transformation company supporting national defense, federal civilian agencies, and Fortune 500 organizations. We help customers secure critical systems, modernize enterprise technology, and solve complex operational challenges through integrated technology capabilities spanning cybersecurity, enterprise IT infrastructure, cloud, software development, data analytics, legal technology and eDiscovery, applied AI, and electronic securi

Full-time

Principal Software Engineer - CTJ - Poly

Reston, Virginia

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Today

Overview Join the Azure AI Platform air-gapped engineering team as a Principal Software Engineer and help shape how Microsoft delivers and operates advanced AI capabilities for some of its most security-sensitive customers. Our team delivers Azure OpenAI, Microsoft Foundry, Azure Machine Learning, and Azure AI Services in sovereign and air-gapped cloud environments, enabling mission-critical government workloads through secure, reliable AI infrastructure. In this role, you will provide hands-on

Full-time

USD 142,800.00 - 274,800.00 per year

Lead, System Integration Engineering (IPTL / LSE)

Ashburn, Virginia

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Today

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 is the Trus

Full-time

USD 127,500.00 - 236,500.00 per year

Software Developer

Herndon, Virginia

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Today

Job Description We are seeking a Software Developer with expertise in secure software engineering and Assessment and Authorization (A&A) processes. You will have a minimum of 6 years of professional software development experience with at least 2 years focused on security engineering and A&A processes. You should also have a bachelor's degree. The team primarily develops in C# and .NET. Candidates with strong experience in Java or another object-oriented programming language are encouraged to

Full-time

Legacy .NET Developer

Hybrid in Vienna, Virginia

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3d ago

Job Title: Full Stack Developer Location: Vienna, VA Type: Contract Compensation: Open to Both C2C and W2 options Work Model: Hybrid onsite and remote Responsibilities Identify business requirements (e.g., needs, objectives, functions, features, input and output) and translate into delivered technical solutions Utilize approved company software development tools and software applications to design, develop, implement and maintain custom code business solutions that align with business initiat

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Contract

Depends on Experience

Full Stack Developer

Reston, Virginia

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Today

Seeking Mi-Level Fll Stck eveloper to esign n eliver en-to-en softwre soltions, riving innovtion, efficiency, n impct. Focs on Front-En evelopment preferre. This role combines hns-on coing with the opportnity to shpe systems from concept to proction. Work is on-site primrily in Tysons Corner, V. bot Technicl Intelligence Soltions, LLC When engineers le, soltions follow. We o compting process optimiztion sing the techniqes n tools pproprite to mximize efficiency. Or SME level tem members esign n

Full-time

C# jobs in Reston, VA, USA