C# Developer Jobs in Washington

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C++/C# Developer (Application Integration Support)

ITC Infotech (USA), Inc

•

Columbia, Maryland, USA

Full-time

Greetings from ITC Infotech! Role - C++/C# Developer (Application Integration Support) Location - Columbia, MD Start Date: Immediate Position Type: Full Time + Benefits (medical, 401K, PTO etc) Role Summary: General development support for application-level integrations, bug fixes, and system enhancements across all three initiatives. Job Description: Key Responsibilities: Develop, maintain, and enhance application code using C++ and C# to support ongoing integration, maintenance, and enhancemen
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Posted 20 days ago

C++/C# Developer with DBA Skills - Hybrid

The Dignify Solutions, LLC

•

Columbia, Maryland, USA

Contract, Third Party

Design, develop, and maintain backend applications and services using C++ and C# for the SEPTA CARD system. Collaborate with system architects and analysts to design robust database schemas and backend logic supporting transaction processing, card management, and reporting systems. Perform database administration tasks including database design, optimization, tuning, maintenance, backup, and recovery for relational database systems (e.g., SQL Server, Oracle). Optimize SQL queries, stored procedu
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Posted 9 days ago | Updated moments ago

C# Developer

SAIC

•

Chantilly, Virginia, USA

Full-time

Job ID: 2505146 Location: CHANTILLY, VA, US Date Posted: 2025-04-29 Category: Software Subcategory: SW Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: Secret Clearance Level Must Be Able to Obtain: TS/SCI with Poly Potential for Remote Work: No Description SAIC is currently looking to hire a C# Developer to join our team located in Chantilly, VA! Basic Qualifications: Bachelor's Degree in Computer Science, Information Systems, Engineering or related
Posted 60+ days ago | Updated 3 hours ago

C# Developer

Headway Tek Inc

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US

Full-time, Part-time, Contract, Third Party

1.C# Dev -AKS & Azure Requirement: C#, Asp.Net Azure Kubernetes Services (AKS) or Kubernetes Azure Cosmos DB REST API/ Microservices MS Experience Knowledge of Al Other requirements: Communication: Good Onsite/Offshore Co- ordination Passionate about Learning Should be able to work in couple of overlap PST hours Should work in PST time zone
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Posted 27 days ago | Updated moments ago

Full Stack Developer (C# / .Net / JS / SQL / AWS)

Cymertek Corporation

•

Tysons, Virginia, USA

Full-time

Full Stack Developer (C# / .Net / JS / SQL / AWS) 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 skilled and versatile Full Stack Developer to join our team, specializing in C#, .NET, JavaScript, SQL, and AWS. In this role, you will be responsible for building and maintaining robust, scalable applications across both the front-end and back-end. You will collaborate closely with cross-functional te
Posted 60+ days ago | Updated 5 hours ago

PowerBuilder Developer (C++/C#/PowerBuilder)

Srimatrix Inc.

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Columbia, Maryland, USA

Third Party, Contract

Job Title: PowerBuilder Developer (C++/C#/PowerBuilder) Justification: Needed to support legacy systems, modernization efforts, and critical transition areas involving PowerBuilder and backend logic. (SFMTA) Experience Level: 5-10 years Job Responsibilities: Maintain, enhance, and support existing PowerBuilder applications that are critical to transit agency operations.Analyze, troubleshoot, and resolve application defects and performance issues in legacy systems.Collaborate with business analy
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Posted 14 days ago

PowerBuilder Developer (C++/C#/PowerBuilder)

Alpha Silicon

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Columbia, Maryland, USA

Third Party, Contract

Title: PowerBuilder Developer (C++/C#/PowerBuilder) Location: Columbia MD Terms: Contract Job Description Justification: Needed to support legacy systems, modernization efforts, and critical transition areas involving PowerBuilder and backend logic. (SFMTA) Job Responsibilities: Maintain, enhance, and support existing PowerBuilder applications that are critical to transit agency operations. Analyze, troubleshoot, and resolve application defects and performance issues in legacy systems. Colla
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Posted 15 days ago | Updated 6 hours ago

Full Stack Developer (C# / .Net / JS / SQL / AWS)

Cymertek Corporation

•

Reston, Virginia, USA

Full-time

Full Stack Developer (C# / .Net / JS / SQL / AWS) LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a skilled and versatile Full Stack Developer to join our team, specializing in C#, .NET, JavaScript, SQL, and AWS. In this role, you will be responsible for building and maintaining robust, scalable applications across both the front-end and back-end. You will collaborate closely with cross-functional te
Posted 60+ days ago | Updated 5 hours ago

Full Stack Developer (C# / .Net / JS / SQL / AWS)

Cymertek Corporation

•

Chantilly, Virginia, USA

Full-time

Full Stack Developer (C# / .Net / JS / SQL / AWS) LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a skilled and versatile Full Stack Developer to join our team, specializing in C#, .NET, JavaScript, SQL, and AWS. In this role, you will be responsible for building and maintaining robust, scalable applications across both the front-end and back-end. You will collaborate closely with cross-functional
Posted 60+ days ago | Updated 5 hours ago

Senior Professional Application Developer (.NET C#)

Gainwell Technologies LLC

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Beltsville, Maryland, USA

Full-time

Be part of a team that unleashes the power of leading-edge technologies to help improve the health and well-being of those most vulnerable in our country and communities. Working at Gainwell carries its rewards. You'll have an incredible opportunity to grow your career in a company that values work flexibility, learning, and career development. You'll add to your technical credentials and certifications while enjoying a generous, flexible vacation policy and educational assistance. We also have
Posted 1 day ago | Updated 1 hour ago

*C# Developer with Strong SQL Development experience (Experience working in Hedge Fund background)*

Kellton

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Remote

Contract

Kellton Tech is a full-service software development company, offering end-to-end IT solutions, strategic technology consulting and product development services in Web, SMAC (Social, Mobile, Analytics, Cloud), ERP-BPM, and IoT space Our methodology of inventing infinite possibilities with technology helps us develop best in-class and cost effective solutions for our clients. Currently Kellton Tech is looking for talented resources for one of our listed client. Below are the position details: Po
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Posted 60+ days ago | Updated 4 hours ago

.Net/C# Developer

Collabera LLC

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Remote or New York, New York, USA

Full-time

Hybrid role at NYC Qualifications: 8+ years of experience in software development with a strong focus on .Net and C# technologies. Extensive experience and deep understanding of fixed income markets, including bonds, interest rate derivatives, and other related products. Proven experience in capital markets, with a strong grasp of trading systems, risk management, and financial instruments. Solid understanding of object-oriented programming, design patterns, and software development best practi
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Posted 60+ days ago | Updated 4 hours ago

Full Stack Developer (C# / .Net / JS / SQL / AWS)

Cymertek Corporation

•

Annapolis, Maryland, USA

Full-time

Full Stack Developer (C# / .Net / JS / SQL / AWS) LOCATION Annapolis Junction, MD 20701 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a skilled and versatile Full Stack Developer to join our team, specializing in C#, .NET, JavaScript, SQL, and AWS. In this role, you will be responsible for building and maintaining robust, scalable applications across both the front-end and back-end. You will collaborate closely with cross-f
Posted 60+ days ago | Updated 5 hours ago

Commodities Application Developer (C#, React, TypeScript) - AVP - Houston (Hybrid)

Citi

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Remote or Houston, Texas, USA

Full-time

The role is for a C# developer who will be working within a small team on Commodities Marking and Market Discovery Platform used by traders across the regions. We offer the opportunity to grow professionally, learn new technologies and gain business knowledge. Responsibilities: Develop the Platform using C# with an opportunity to learn React during WPF to React migrationWork directly with quants and traders to specify requirements and own deliveries and 3rd line support to provide daily communi
Posted 31 days ago | Updated 5 hours ago

PowerBuilder Developer (C++/C#/PowerBuilder) - Columbia, MD - Only Locals

Group Nine

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Columbia, Maryland, USA

Contract, Third Party

Position Title: PowerBuilder Developer (C++/C#/PowerBuilder) Location: Columbia, MD, Only Locals Duration: 6 Months Justification: Needed to support legacy systems, modernization efforts, and critical transition areas involving PowerBuilder and backend logic. (SFMTA) Experience Level: 5-10 years Job Responsibilities: Maintain, enhance, and support existing PowerBuilder applications that are critical to transit agency operations. Analyze, troubleshoot, and resolve application defects and perform
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Posted 15 days ago

Remote Position: Need C# & .Net developer with PeopleSoft / workday integration Exp

Svam International, Inc.

•

Remote

Contract, Third Party

C# & .Net developer with PeopleSoft / workday integration Exp Long term contract Remote Position Job Description: Design, develop, and deploy scalable and resilient microservices using C# and the .NET framework. Proficiency in C# and the .NET framework (.NET Core, Core) are required skills.Ability to collaborate with cross-functional teams to define, design, and develop new features and services.Experience developing and maintaining robust, efficient, and secure RESTful APIs to facilitate seam
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Posted 15 days ago | Updated 7 days ago

Senior C# Full Stack Developer

Precision System Design Inc.

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Remote

Contract

Our Fortune 100 direct client is hiring for experienced Senior Full Stack Developers to work on large-scale IT projects. You would be designing and coding in a variety of technologies supporting and developing an Vue/Angular UI application, with C# back-end microservices. The ideal candidate will have strong C# development experience, has worked with front-end technologies such as angular, and back-end experience with SQL Server. This role can be done fully remotely following an EST work schedul
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Posted 15 days ago | Updated 18 hours ago

Urgent :::: PowerBuilder Developer (C++/C#/PowerBuilder) :::: Local in Columbia, MD

REDLEO SOFTWARE INC.

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Columbia, Maryland, USA

Contract

Position Title: PowerBuilder Developer (C++/C#/PowerBuilder) Work location: Remote - Hybrid. Mostly work from home and be able to come into the office when required. Technical Skills & Qualifications: Bachelor s degree in Computer Science, Information Systems, Software Engineering, or related field (Master s preferred).5-10 years of hands-on experience developing and maintaining applications in PowerBuilder (versions 9.x through 2019 R3 or later).Strong proficiency in C++ and C# with experience
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Posted 15 days ago

C# Software Developer

Zachary Piper Solutions, LLC

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Remote

Full-time

Piper Companies is seeking a C# Software Developer to join a leading shipping and logistics organization. The C# Software Developer will work on backend development, automate workflows, and assist in designing cloud-based applications, with an emphasis on data. Responsibilities of the C# Software Developer include: Lead the design, development, testing, and deployment of .NET C# applications. Architect complex data structures for rate audits of parcel carrier invoice files. Design, develop, an
Posted 56 days ago | Updated 30 days ago

Senior Software Developer (C#.Net) / Remote

Motion Recruitment Partners, LLC

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Remote or Memphis, Tennessee, USA

Full-time

Our client is looking for a Senior Software Developer on a 11-month contract in Memphis, TN. Join over 20,000 employees at this global company specializing in technology-enabled claims and risk management solutions. You will be part of a culture that is constantly recognized for progressive, inclusive employment practices, and be part of a bigger movement to simplify complexities in the areas of workers compensation, liability, property, disability, and absence management. You will work alongsid
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Posted 1 day ago | Updated 1 hour ago