C# Developer jobs in California

C# Developer (Medical Device Background Highly Preffered)

San Jose, California

•

2d ago

Primary Focus: Simulator Development (C#), Automation (Squish), & Firmware/Hardware Validation The "Must-Have" Skills (Non-Negotiables) C# Expertise: Minimum 5+ years of hands-on development experience in C#. You must be comfortable writing complex object-oriented code, not just editing scripts.Python Experience: Minimum 2+ years of scripting experience (used for glue code and automation support).Automation Tools: Proven experience with Squish (preferred), WinAppDriver, or similar GUI automation

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Contract

Depends on Experience

Software Simulator Engineer / C# Developer with GUI Automation

San Jose, California

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2d ago

Job Tittle: Software Simulator Engineer / C# Developer with GUI Automation Location: San Jose, CA (On-site) Primary Focus: Simulator Development (C#), Automation (Squish), & Firmware/Hardware Validation In this pivotal role, you will own the enhancement and maintenance of our proprietary Software Simulator the critical tool used to validate our robotic surgical hardware and firmware without needing the physical robot every time. You will spend the majority of your time coding in C# to expand th

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Contract, Third Party

$50 - $60

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

Remote

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Today

Job Title: PowerBuilder Developer (C++/C#/PowerBuilder) Location: Remote Experience: 7 10 Years Key Responsibilities Maintain & enhance legacy PowerBuilder applications used by transit operations.Troubleshoot defects, performance issues & production problems.Work with business teams to gather requirements & define technical specs.Support modernization: rewrite/refactor PowerBuilder code into C++/C#.Develop backend logic, APIs & integrations with enterprise systems.Perform code reviews, unit &

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Contract

Depends on Experience

C# Developer with automation testing

Remote

•

Yesterday

Title: C# Developer with Automation Testing Location: Remote Duration: Contract till Sept 2026 Summary: This role involves client applications and involves application testing and providing recommendations for optimization. Required Skills - C#, Java, Java Typescript Selenium Specflow Playwright Job Duties - Responsible for documenting, testing, and supporting efficient and effective computer applications and tools consistent with established specifications and business requirements. Responsibl

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Contract

Senior C# Developer

Remote or Hybrid

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Today

Our Fortune 100 direct client is hiring for an experienced Senior C# Developer to work on large-scale IT projects. You would be designing and coding in a variety of technologies supporting backend, API, and database. The ideal candidate will have strong C# development experience, has worked with front-end technologies such as angular or Vue, and back-end experience with SQL Server. This role can be done fully remotely following an EST work schedule. Does this sound like something you'd like to

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Contract

DOE

Back-End Developer Legacy Modernization (Java OR C#)

Remote

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19d ago

Are you passionate about transforming legacy systems into modern, scalable applications? . We specialize in migrating applications from mainframe and legacy environments to modern platforms like Java Spring and C# .NET using automated tools. In this role, you ll contribute to core modernization efforts, enhance reusable libraries, and mentor junior developers. You ll work closely with a collaborative team to deliver high-quality solutions on schedule. What You ll Be DoingWriting clean, efficient

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Contract

Depends on Experience

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

Remote

•

Today

Job Title: PowerBuilder Developer (C++/C#/PowerBuilder) Location: Remote Experience: 7-10 Years Key Responsibilities Maintain & enhance legacy PowerBuilder applications used by transit operations. Troubleshoot defects, performance issues & production problems. Work with business teams to gather requirements & define technical specs. Support modernization: rewrite/refactor PowerBuilder code into C++/C#. Develop backend logic, APIs & integrations with enterprise systems. Perform code reviews, uni

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

Azure Integration Architect/Developer (Python, C#)

Remote

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12d ago

Azure Integration Archiect / Developer (Python, C#, .NET) Remote Overview We are looking for an experienced Integration Architect/Developer to join our Integration Hub team. The ideal candidate will have strong experience in building, scaling, and maintaining enterprise integrations using Azure services, along with solid skills in SQL/NoSQL databases and modern AI tools. This role spans hands-on development, debugging production issues, and collaborating with architects and business teams to bui

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Contract, Third Party

Depends on Experience

Senior PHP Laravel Developer

Remote

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2d ago

Title: Senior PHP Laravel DeveloperLocation: Remote Duration: 6 Months (Contract to hire) Job Summary: We are seeking a Senior PHP Laravel Developer specializing in backend API development to build and maintain scalable, secure, and high-performance web applications for Life Insurance sales, agent management, and lead generation.The ideal candidate will have experience working with RESTful APIs, microservices, and backend system integrations to optimize data flow between sales, marketing, and in

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Contract

$60 - $70

Software Test Engineer

San Jose, California

•

Yesterday

Job Description: Role : Software Test Engineer Location : San Jose, CA (On-site) Exp : 5 to 9 Years The Opportunity : Staff Software Test Engineer - who is less of a "script runner" and more of a tool builder. Primary Focus: Simulator Development (C#), Automation (Squish), & Firmware/Hardware Validation In this pivotal role, you will own the enhancement and maintenance of our proprietary Software Simulator-the critical tool used to validate our robotic surgical hardware and firmware without

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Third Party

$Depends on Experience

C# Software Engineer

Remote or Sandy, Utah

•

Yesterday

RESPONSIBILITIES: Kforce has a client that is seeking a Software Engineer in Sandy, UT. We are seeking a skilled C#/.NET Engineer to join our team. The ideal candidate will have strong experience in building scalable applications using modern frameworks and cloud technologies. Key Responsibilities: * Design, develop, and maintain applications using C# and .NET frameworks * Implement and manage microservices architecture for distributed systems * Collaborate with cross-functional teams to delive

Contract

$20 - $30 hourly

Sr Application Programmer

Remote

•

16d ago

Job Description: The scope of the proposed services will include the following: Development, administration, configuration and support of Microsoft Power Application, .NET applications, Microsoft Power BI dashboards and reports and SharePoint;Leading application deployment processes and strategies that align with State standardsSet up, configure and coordinate with State teams on the implementation of infrastructure to support business requirements (i.e. databases, servers, etc.);Implement integ

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Full-time

Depends on Experience

FULL STACK DEVELOPER 10+ Years with React and API Tech, someone who can start without much handholding - 20 to 40 Hours per week, 100% Remote 6+ months, NO H1B

Remote

•

16d ago

Prefer PST Time FULL STACK DEVELOPER 10+ Years with React and API Tech, someone who can start without much handholding - 20 to 40 Hours per week, 100% Remote 6+ months, NO H1B Job Title: Application and Integration Developer About the Role We are seeking a skilled and motivated Application and Integration Developer to join our development team. In this role, you will support the design, development, and integration of modern applications and data solutions across our enterprise ecosystem. The id

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Contract

$50 - $60

Software Test Engineer

San Jose, California

•

Today

Role : Software Test Engineer Location : San Jose, CA (On-site) Exp : 5 to 9 Years The Opportunity : Staff Software Test Engineer Primary Focus: Simulator Development (C#), Automation (Squish), & Firmware/Hardware Validation In this pivotal role, you will own the enhancement and maintenance of our proprietary Software Simulator-the critical tool used to validate our robotic surgical hardware and firmware without needing the physical robot every time. You will spend the majority of your tim

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Third Party

Copilot Developer

Remote

•

5d ago

Position: Copilot Developer 100% Remote Hiring: W2 Contract / Fulltime Job Description: Lead design and development of Copilot Studio agents and Power Platform solutions (Canvas/Model-driven apps, Power Automate, Dataverse).Build custom connectors, actions and REST API integrations; implement RAG and configure Semantic Index for context enrichment.Develop AI Builder models and own model lifecycle (data prep, labeling, training, evaluation, retraining).Apply ALM/DevOps for Power Platform deployme

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Full-time

Depends on Experience

Senior Single Sign On Engineer (SSO) - C# / SAML, Ping Identity / Okta

Remote

•

Today

100% Remote - Candidates only - NO THIRD PARTY Our client is looking to augment their team with a C# SSO Software Engineer to assist in the implementation of Customer Single Sign-On (SSO) solutions. Requirements: 5+ years of overall C#.NET development experience,Experience developing Identity Access Management (IAM) solutionswith Ping Identity (or Okta) / SAMLExperience with Single Sign-On (SSO), access controls, identity proofing, OAuth, OpenID Connect (OIDC), WS-Fed, MFA, Public Key Infrastruc

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Contract

Depends on Experience

Senior Software Engineer (C# / Azure / .NET Core / microservices, AKS)

Remote

•

Today

Remote Senior C# / .NET Software Engineer (.NET Core, Azure, microservices, AKS) Our client is looking to augment their team with an experienced Senior Software Engineer to assist in the implementation of cloud-based systems used by large corporations. This is a "best of all worlds" type of opportunity, working alongside highly-skilled resources, within a specialized technology division of a larger company, providing solutions to Fortune 500 companies. We are looking for flexible resources on th

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Full-time

$125,000 - $165,000

C# Software Engineer

Remote or Hybrid in Mendon, Utah

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Today

C# Software Engineer (I-IV) Location : Remote or Hybrid (UT or TX) Target Start Date : 12/8/2025 Long-Term Contract (3-4 years) Pay Rate : $40.85-$75.00/hr Summary Our client, a global leader in advanced autonomous and robotic solutions across multiple industries, is seeking C# Software Engineers to participate in the full software development lifecycle for autonomous software, including requirements analysis, design, coding, testing, integration with hardware components, and deployment. Con

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Full-time

USD 40.85 - 75.00 per hour

Sr. Software Engineer (C#, .NET)

California

•

Today

Job Title: Sr. Software Engineer (C#, .NET) Location: Remote (Candidate should work CST Hours) Duration: 6 Months Rate: $Market We are seeking a dedicated Sr. Software Engineer to join our team. The ideal candidate would be able to support our C# .NET 8 back-end maintenance and enhancement of our backend API that is pivotal in delivering robust services to a diverse range of clients. This crucial role involves ensuring the seamless operation and scalability of APIs that support warehousing

Contract, Third Party

Microsoft Dynamics 365 Developer

Remote

•

13d ago

Job Description: Microsoft Dynamics 365 Developer Location: Remote Key Responsibilities Develop and customize Dynamics 365 CRM (Customer Engagement) using C#, .NET, plugins, and JavaScript. Build and enhance model-driven apps, forms, business rules, and workflows. Create and manage Power Automate flows, custom connectors, and Dataverse integrations. Implement API integrations, Azure Functions, and Logic Apps. Develop reports/dashboards using Power BI or SSRS. Support deployments, testing, troub

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Contract

Depends on Experience

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C# Developer jobs in California, USA