c# Jobs in District of Columbia

81 - 100 of 591 Jobs

Sr. Systems Development Engineer, AWS Managed Operations (MO) AWSOM TeamJob Title - Sr. Systems Development Engineer, AWS Managed Operations (MO) AWSOM Team

Amazon Development Center U.S., Inc.Company Name - Amazon Development Center U.S., Inc.

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Herndon, Virginia, USA

Full-time

Do you love decomposing problems to develop products that impact millions of people around the world? Would you enjoy identifying, defining, and building software solutions that revolutionize how businesses operate? Would you enjoy diving deep into operating and improving some of the largest software systems humanity has ever built? Do the challenges that come of driving technical, business, and cultural change to improve the reliability, performance, and efficiency excite you? The AWS Managed

Senior Software Engineer | Remote | ContractJob Title - Senior Software Engineer | Remote | Contract

Walker HealthforceCompany Name - Walker Healthforce

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Remote

Contract

Senior Software Engineer | 8+ years experience | Clearance Required | Remote | Contract Walker Healthforce is seeking a Senior Software Engineer with 5-7 years of experience to support a healthcare client. This is a 6-month contract opportunity. Must hold a valid government-issued clearance. START DATE: 6/2/2025 CORE REQUIREMENTS: 8+ years experience as a Software Engineer Experience with .Net technologies Experience with ASP.Net, .Net Core, C#, JavaScript, VB Script, HTML, CSS, SSIS, and SQL

Power Apps ArchitectJob Title - Power Apps Architect

Constellation Software Engineering, Corp.Company Name - Constellation Software Engineering, Corp.

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Washington, District of Columbia, USA

Full-time

Dynamics 365/Power Apps Architect **Immediate Opportunity** **Remote work** CSEngineering is looking to add a Dynamics 365/Power App Developer to our growing team! JOB RESPONSIBILITIES Responsible for all SDLC activities, code review, mentoring team, resource planning and providing. Ability to establish priorities and work independently. Project Scheduling, Monitoring, Risk analysis and mitigation. REQUIRED QUALIFICATIONS Security Clearance: Eligible for a Secret Clearance. A minimum of a bache

Software Developer Cyber - SWE 3Job Title - Software Developer Cyber - SWE 3

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Maryland, USA

Full-time

Job Description This position may be eligible for a $25K sign on bonus for external hires! What We're Doing: Lockheed Martin, Cyber & Intelligence invites you to step up to one of today's most daunting challenges: the use of advanced electronics to undermine our way of life. You'll develop innovative offensive cyber capabilities that help protect the nation and the world. Cyber Lockheed Martin Who we are: Are you driven by the thrill of outsmarting even the most advanced security systems and

Lead, Systems Integration Engineering (UAV)Job Title - Lead, Systems Integration Engineering (UAV)

Harris CorporationCompany Name - Harris Corporation

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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

Summer Intern - SEG PrototypingJob Title - Summer Intern - SEG Prototyping

NuAxis LLCCompany Name - NuAxis LLC

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Vienna, Virginia, USA

Full-time

We are a federal IT company on a mission to make customer experience (CX) the center of every government solution. Technology is our Passion. People are our Purpose. We know tech, but we love people. NuAxis is home to thinkers and feelers, engineers and artists. We work hard and support each other along the way. Teamwork is more than just a buzzword for us, it's a state of mind. We believe happy employees do amazing work, so join our team NOW! We are currently seeking a talented and motivated S

Software Technical LeadJob Title - Software Technical Lead

JacobsCompany Name - Jacobs

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Herndon, Virginia, USA

Full-time

Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. Amentum is seeking a Software Technical Lead to join our team of passionate individuals in Herndon, VA. In this role you will support challenging, mission-critical projects that make a direct impact on the Nation's security and intelligence mission. Your Impact: We are seeking a highly skilled Technical Lead to spearhead software development initiatives within our dynamic team. The

CNO Software Engineer TS/SCI FSPJob Title - CNO Software Engineer TS/SCI FSP

Mission Box SolutionsCompany Name - Mission Box Solutions

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Laurel, Maryland, USA

Full-time

Our client is seeking a Software Engineer to provide technical expertise in support of a U.S. Government customer. This full-time position offers the opportunity to assist in sustaining mission-critical software and systems for a large government contract. Responsibilities: Support the innovation team within the CNO's Foundational Services product group, working alongside experienced analysts, operators, and developers.Add new functionality to a large-scale microservice ecosystem.Automate manua

Software Engineer-Data EngineeringJob Title - Software Engineer-Data Engineering

American Association Of Motor Vehicle Admin.Company Name - American Association Of Motor Vehicle Admin.

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Arlington, Virginia, USA

Full-time

Position Summary: The IT Division is responsible for the development and operations of information systems for the State and Federal agencies doing business related to or using information from the administration of motor vehicles and driver licenses. The Data Engineer position has core responsibilities for the design, development, maintenance, optimization, and operational support of components which move and ingest data from sources into the analytics systems. Essential Duties and Responsibili

Software Engineer (TS/SCI w/ Poly required)Job Title - Software Engineer (TS/SCI w/ Poly required)

Parsons Services CompanyCompany Name - Parsons Services Company

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Maryland, USA

Full-time

In a world of possibilities, pursue one with endless opportunities. Imagine Next! When it comes to what you want in your career, if you can imagine it, you can do it at Parsons. Imagine a career working with exceptional people sharing a common quest. Imagine a workplace where you can be yourself. Where you can thrive. Where you can find your next, right now. We've got what you're looking for. Job Description: We are seeking a Software Engineer 0 to join the software development team. The idea

Software Cyber Engineer - SWE 2Job Title - Software Cyber Engineer - SWE 2

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Maryland, USA

Full-time

Job Description This position may be eligible for a $25K sign on bonus for external hires! What We're Doing: Lockheed Martin, Cyber & Intelligence invites you to step up to one of today's most daunting challenges: the use of advanced electronics to undermine our way of life. You'll develop innovative offensive cyber capabilities that help protect the nation and the world. Cyber Lockheed Martin Who We Are: Are you driven by the thrill of outsmarting even the most advanced security systems and

Software Development EngineerJob Title - Software Development Engineer

American Systems CorporationCompany Name - American Systems Corporation

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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

Acumatica Technical DeveloperJob Title - Acumatica Technical Developer

Xceed Technologies IncCompany Name - Xceed Technologies Inc

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Remote

Contract

Title: Acumatica Technical Developer Location: Remote, USA Duration:6-12 months Job Description We are seeking a skilled Acumatica Developer to design, develop, and maintain customizations and integrations within the Acumatica ERP platform. The ideal candidate will have experience in Acumatica framework (using C# and .NET), a strong understanding of business processes, and the ability to deliver scalable ERP solutions tailored to organizational needs. Key Responsibilities: Customize Acumatica mo

Senior Lead AI EngineerJob Title - Senior Lead AI Engineer

Capital OneCompany Name - Capital One

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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

Senior Full Stack DeveloperJob Title - Senior Full Stack Developer

Prominent TechnologyCompany Name - Prominent Technology

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Remote

Full-time

Software EngineerAbout ProminentAt Prominent, we are driven by a commitment to empowering confidence through innovative technology solutions and exceptional staffing services. Guided by our core valuesPrioritize Relationships, Imagination into Reality, Speak Truth, Enjoy Work, and Steward as Our Ownwe create transformative software for a diverse range of industries. Our focus is on building meaningful client partnerships and delivering tailored, high-quality results. Join us in a collaborative e

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

KentroCompany Name - Kentro

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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

Software Engineer / Systems AdministrationJob Title - Software Engineer / Systems Administration

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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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

Software Cyber Engineer - SWE 1Job Title - Software Cyber Engineer - SWE 1

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Maryland, USA

Full-time

Full Time role for .Net Developer- Need NY/NJ localsJob Title - Full Time role for .Net Developer- Need NY/NJ locals

InfoPeople CorpCompany Name - InfoPeople Corp

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Remote

Full-time

We are seeking a driven and detail-oriented .NET / Microsoft Developer to join our technology team. This role is ideal for a junior to mid-level developer with 3 to 7 years of hands-on experience, particularly in .NET Core, Microsoft Power Platform, and Blazor. Prior experience in the investment or financial services industry is highly desirable. Key Responsibilities: Design, develop, and maintain applications using .NET Core, Blazor, and related Microsoft technologies. Build and customize solut

Engineering Technician (SECRET) 1Job Title - Engineering Technician (SECRET) 1

Harris CorporationCompany Name - Harris Corporation

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Ashburn, Virginia, USA

Full-time