c# Jobs in District of Columbia

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141 - 160 of 576 Jobs

System Engineer - Department of Defense

Esri

•

Vienna, Virginia, USA

Full-time

Overview In this position, you will implement advanced ArcGIS deployments, analyze and solve technical problems, and optimize performance and organization. You will consult with end users on advanced enterprise deployment, architecture, and integration topics. This team supports the Department of Defense and Intelligence Community clients. You will be part of a talented cross-functional team of dynamic and passionate engineers to deliver capabilities that enable our customers to make a differe
Posted 7 days ago | Updated 9 hours ago

Application Maintenance Developer

Virtutem

•

Remote

Full-time

SummaryWe are seeking a hands-on, technically strong C# developer to support and expand an existing full-stack enterprise application for a high-profile client. The application is already built and in active use. This role focuses on maintaining the platform while working closely with the client to enhance and grow its capabilities over time LogisticsFull-time availability required during standard California business hours. 100% remote; must be comfortable and effective working via screen share
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Posted 9 days ago | Updated 9 days ago

Sr .Net Developer

URSI Technologies Inc.

•

Remote

Third Party, Contract

Job Title: Senior .NET DeveloperLocation: Remote (USA)Experience: 9+ YearsDuration : Long Term About the Role:We're seeking a Senior .NET Developer with 9+ years of professional experience in full-stack development using .NET Core, C#, and SQL Server. This is a remote opportunity to join a dynamic team working on scalable, enterprise-level applications across a range of industries, including education, finance, and healthcare. Key Responsibilities:Design, develop, and maintain high-quality, scal
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Posted 32 days ago | Updated 3 days ago

Software Engineer (Multiple Levels) - Fully Cleared

BlueHalo

•

Annapolis, Maryland, USA

Full-time

At BlueHalo, an AV Company we're more than just a tech company; we're a collective of creators and innovators dedicated to designing solutions that address the world's most pressing challenges. Our culture thrives on collaboration, creativity, and the relentless pursuit of excellence. Here, your passion for technology will fuel projects that have a real, lasting impact. Join us on this exhilarating journey to shape the future, one groundbreaking solution at a time. We are seeking Software Engin
Posted 60+ days ago | Updated 9 hours ago

Manager, Software Engineering

Mastercard

•

Arlington, Virginia, USA

Full-time

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest po
Posted 52 days ago | Updated 9 hours ago

Cloud Solutions Architect

Akima, LLC

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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
Posted 2 days ago | Updated 10 hours ago

Content Management System (CMS) Developer/ CMS / SDL Engineer

Tech3pillars Technologies

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Remote

Contract

Position: Content Management System (CMS) Developer/ CMS / SDL Engineer Location: Seattle, Remote Duration: Long term Description: Core skills This person would know both SDL Sites and Docs. They will help create content types in SDL Sites and contribute to publishing pipeline. They should be able to develop SDL extensions and build out APIs in NodeJS/Typescript. In depth knowledge of Tridion (SDL) Sites Write and maintain custom pluginsIn depth knowledge of Tridion (SDL) Docs Docs cloudWrite
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Posted 16 days ago

Sharepoint Developer

Raas Infotek LLC

•

Remote

Contract

Position: SharePoint Developer Type: W2 Contract (No C2C) We re seeking a skilled SharePoint Developer to design, develop, and maintain SharePoint-based solutions that support enterprise collaboration, workflow automation, and document management. This role is ideal for someone experienced in both classic and modern SharePoint environments. Responsibilities:Design and develop custom SharePoint components using SPFx, Power Automate, and Power AppsBuild workflows, dashboards, forms, and automated
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Posted 1 day ago

DRC-Programmer 4-PR4

Stellar Professionals LLC

•

Ohio, USA

Contract, Third Party

Mode of Interview: MS-Teams/Virtual Work Location: Remote Duration: 05/16/2025 to 06/30/2025 Work Arrangement: Remote C#, ASP.NET Web application development, .Net 1.1 to Current SQL2000 to SQL2018, SQL Procedures, Functions, Tables, Views REACT, REDUX, REDIS and Axios Experience in Enterprise Data Modeling Experience with Azure Pipelines Experience with Node.js Perform System Test and Create Test Documentation C#, ASP.NET Web application development, .Net 1.1 to Current SQL2000 to SQL2018,
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Posted 4 days ago | Updated 21 hours ago

Software Cloud Engineer

MARS IT

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Remote

Contract

Project Description: As a senior analyst, software cloud engineer, you have opportunities to improve our Infrastructure as code implementation.You will closely collaborate with, lead developer, and the application architect to successfully design, build, and maintain a new infrastructure as code implementation for our Bend Platform.Analyze current IaC and make recommendations on improvements.Implement and test a new version of the Bend platform infrastructure using CloudFormation, code pipeline
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Posted 28 days ago | Updated 20 hours ago

Senior Performance Test Engineer

Precision System Design Inc.

•

Remote or Cleveland, Ohio, USA

Contract

Our Fortune 100 client is hiring for a Senior Performance Test Engineer who is highly proficient with performance test plan and script creation. Candidates must have strong knowledge of performance, load, and stress testing. The ideal candidate will also have experience with C# programming or other programming language, Selenium WebDriver and Neoload. This role can be done fully remotely following an EST or MST work schedule. Does this sound like something you'd like to hear more about? If so, A
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Posted 2 days ago | Updated 11 hours ago

Full Stack Software Engineer

Cymertek Corporation

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Tysons, Virginia, USA

Full-time

Full Stack Software Engineer LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a highly skilled Full Stack Software Engineer to join our team and contribute to the development of cutting-edge applications. In this role, you will work across the entire software development lifecycle, from designing user interfaces to implementing back-end functionality. You will collaborate with cross-functional teams t
Posted 60+ days ago | Updated 9 hours ago

Senior Software Developer (cleared)-61525

Syneren Technologies

•

Alexandria, Virginia, USA

Full-time

Job Title: Sr. Software Developer (Full-Stack) Job Location: Alexandria, VA. (Onsite) Job Description: Syneren is seeking a skilled and visionary ? Sr. Software Developer to lead our software development team to design robust solutions within the Microsoft Azure ecosystem to help modernized legacy application to the newest technology and approach available in the Azure Cloud. As a Sr. Software Developer, you will play a critical role in shaping our cloud infrastructure, ensuring scalability, s
Posted 24 days ago | Updated 8 hours ago

Software Engineer

AgreeYa Solutions

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Remote

Contract

Position: Software Engineer Location: Remote Duration: 6-12+ Months Description: Looking for experienced software generalists ideally with experience in C++, C#, JS, Python, Hack, Java, Android to work on development tools and codeline health.The domain is CI/CD and the ability to debug broken build jobs quickly. The role is more operational, than development heavy generally but requires those skills to help debug and fix build issues.Candidate should be a strong in programming but there won t b
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Posted 29 days ago | Updated 3 days ago

Application Developer

GovCIO

•

Fairfax, Virginia, USA

Full-time

Overview GovCIO is currently hiring for an Application Developer with an active Secret clearance to design, build, and modify application software. This position will be located in Fairfax, Virginia and will be a fully onsite position. Responsibilities Design, build, and modify application software using a variety of programming languages such as Java, ColdFusion, JavaScript, and C#. Implement multiple design patterns such as MVC, web services, SOA, and/or microservices.Integrate COTS product
Posted 60+ days ago | Updated 7 hours ago

Sr Node.js, Typescript Fullstack Developer

People Force Consulting Inc

•

Remote

Contract, Third Party

Full Stack Developer (Healthcare App Modernization Node.js, React, TypeScript) Experience:7+ Years Location: New York, NY (Fully Remote) Contract: 6 months Educational Qualifications: - Engineering Degree BE/ME/BTech/MTech/BSc/MSc.Technical certification in multiple technologies is desirable.Job Description Were seeking a Full Stack Developer with expertise in Node.js (TypeScript)and Reactto work closely with our lead for application modernization efforts.Youll modernize legacy systems by inc
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Posted 32 days ago | Updated 1 day ago

Senior Application Developer

GovCIO

•

Fairfax, Virginia, USA

Full-time

Overview GovCIO is currently hiring for a Senior Application Developer with an active Secret clearance to design, build, and modify application software. This position will be located in Fairfax, Virginia and will be a fully onsite position. Responsibilities Design, build, and modify application software using a variety of programming languages such as Java, ColdFusion, JavaScript, and C#. Implement multiple design patterns such as MVC, web services, SOA, and/or microservices.Integrate COTS p
Posted 60+ days ago | Updated 7 hours ago

AI Architect

System Soft Technologies

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Remote

Contract, Third Party

Job Summary The client is looking for AI Architect who can support remotely Responsibilities Follow the Information Systems Development Methodology (ISDM)Follow Coding StandardsPropose future enhancements to existing systemsDevelopment Technical Specifications DocumentationInternal and External TestingWork closely with Program Areas, business analystsand Data Integrity OfficersEnhance AI-based automationFollow the Information Systems Development Methodology (ISDM)Perform Pre & Post Code Analysis
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Posted 3 days ago | Updated 3 days ago

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
Posted 4 days ago | Updated 9 hours ago

Mid-Level Capabilities Development Engineer

General Dynamics Information Technology

•

Maryland, USA

Full-time

Type of Requisition: Pipeline 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: Engineering (General) Job Qualifications: Skills: C Sharp (Programming Language), Development Software, Embedded Software, Embedded Systems Certifications: None Experience: 0 + years of related experience ship Required: Yes Job Description: Designs, develops, tests and evaluates e
Posted 60+ days ago | Updated 7 hours ago