C# Jobs in Washington

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

REDLEO SOFTWARE INC.

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

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

VRTek Consulting

Columbia, Maryland, USA

Contract

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 analysts, end users, and cross-functional teams to gather req

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

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

Srimatrix Inc.

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

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

Group Nine

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

Solutions Architect - .Net, C#, AWS

Perficient

Fairfax, Virginia, USA

Full-time

We currently have a career opportunity for a Solutions Architect to join our team. This role is REMOTE. Job Overview: As a Solutions Architect, you will play a pivotal role in designing and implementing enterprise-grade digital process automation solutions using the Camunda platform. This role focuses on leveraging BPMN, DMN, and process orchestration capabilities to streamline and optimize business workflows across diverse industries. You will be responsible for guiding development teams in

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

Alpha Silicon

Columbia, Maryland, USA

Contract, Third Party

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

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

C# Dot Net Developer with Trading & Capital Market exp.

Magnum Technologies, Inc.

Remote

Full-time

JOB DESCRIPTION: Please apply only if you have Investment banking/Capital market experience. W2 ONLY (No C2C) Role: Dot Net Developer with Trading EXP. Location: NY(Remote) Job Type: W2 Client is looking for a reliable full stack Dot Net developer ASAP.Wealth Management & Capital Market (Trading, Equities, , Portfolio) Exp. Must.SQL, C#, .NET, Full stack developer with 8+ years of experienceProficiency in C#, .NET framework, and object-oriented programming principles.Experience with financial mo

Mid-Level Software Developer/Remote/.NET/C#

Motion Recruitment Partners, LLC

Remote or Philadelphia, Pennsylvania, USA

Full-time

A technology company is seeking software developers to join their full-time remote team. This organization provides specialized solutions to clients across various industries and values individuals who demonstrate strong character and integrity. In this role, software developers will contribute by building new features, identifying areas for performance improvements, and collaborating with team members and stakeholders across departments. Responsibilities may include working with databases, dev

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

C++/C# Developer ? Application Integration Support

The Dignify Solutions, LLC

Remote or Columbia, Maryland, USA

Contract, Third Party

Job Responsibilities: Develop, maintain, and enhance application code using C++ and C# to support ongoing integration, maintenance, and enhancement needs across multiple transit system initiatives. Perform code analysis, debugging, and resolution of software defects reported from field operations or testing environments. Participate in peer code reviews, design reviews, and software quality assurance processes to maintain high development standards. Develop unit tests and integration tests to va

Senior Developer Tech Lead Position - C# with Workflow Orchestration tools using WSO2 or MuleSoft or Mendix or Appian.

Digipulse Technologies, Inc

Remote

Full-time, Third Party

(Job Description) - Hands-On Senior Developer Tech Lead Position 1. Strong proficiency in C# for scalable, maintainable development. 2. Hands-on experience with Workflow Orchestration tools using WSO2 or MuleSoft or Mendix or Appian. 3. Expertise in API Management/Gateway platforms such as WSO2 or Apigee or Mulesoft. 4. Lead the design and development of enterprise-grade APIs and Microservices. 5. Design and implement event-driven architecture using Kafka or RabbitMQ. 6. Provide technical leader

Gameplay Engineer - C#

SGS Consulting

Remote

Contract

Responsibilities: Create NPC tools to demonstrate NPC behaviors in Open WorldsCreate both simple and complex examples that can be used both for creator samples and for AI training.Requirements: BS in Computer Science/Engineering or equivalent industry experience.3-5 years game development experience.Proficiency in C#Ability to work independently with minimal outside supervision.Ability to multi-task, prioritize and be flexible able to adapt plans and react to change in a diverse, fast-paced, and

C# Developer

Headway Tek Inc

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

Sr. C#/.NET Integration Engineer (Apache NiFi/FHIR API's)

ConsultNet, LLC

Remote or Dallas, Texas, USA

Full-time

Sr. C#/.NET Integration Engineer (Apache NiFi/FHIR API's) Remote (MST, Central or Eastern Time Zone) 6-12-month Contract or Contract to Hire Pay Rate: 75-80/hr A rapidly growing technology-driven organization focused on streamlining how sensitive records are managed, processed, and shared. They specialize in transforming manual, compliance-heavy workflows into secure, efficient digital solutions-helping clients improve access, accuracy, and overall operational performance across regulated env

MES Developer with .net and C#

Indotronix International Corp

Remote

Contract

Role: MES Developer Location: Remote Pay Rate: $77/Hr on W2 Duration: 6+ Months Location: Remote, required to be within 1-2 hour commutable distance in one of the following client office locations: - Corning, NY - Charlotte, NC - Vineland, NJ - Phoenix, AZ - Hemlock, MI - Hickory, NC - Blacksburg, VA - Keller, TX - Boston, MAKey Responsibilities: Strategic view and understanding of Siemens Opcenter/Camstar Execution to lead design and development efforts across client. Design, implement,

Senior C#/React Native Mobile Engineer/Entertainment/Remote

Motion Recruitment Partners, LLC

Remote or Philadelphia, Pennsylvania, USA

Full-time

A large company in the entertainment industry is hiring for a senior .NET/React Native developer. The firm needs someone with a strong background in .NET and React Native and has a background in entertainment and streaming to do full stack development on a customer facing product used by thousands of people daily. *This role is remote, but requires that you work EST hours* The company's main focus will be expanding, improving, and upgrading their customer facing platform. They are looking to bri

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

C#.NET API Developer

TriCom Technical Services

Remote

Contract

C#.NET API Developer Summary This C#.NET API Developer will focus on developing financial applications, creating workflows, and API integration. Responsibilities Support the company's financial systems.Develop Web-based solutions for internal customers business needs using C#/MVC.NET and MS SQL.Develop methods and processes to interact with various Cloud-based APIs using SOAP and RESTful APIs.Develop and maintain data synchronization between various systems within and between the company and o