C# jobs in San Francisco, CA

Job Opportunity - Opcenter Lead Onsite @ Fremont, CA (onsite mandatory)

Fremont, California

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Today

Job Description: Role: Opcenter Lead Onsite Location Fremont, CA (onsite mandatory) Duration: Long Term Contract Mandatory Skills - MES/Opcenter implementation, C#, .NET, SQL, Mendix Job Description Domain Expertise: Subject Matter Expert for administering, configuring, and maintaining Opcenter Core and Electronics. Design & Development: Design and develop custom transactions in Opcenter to meet specific business requirements. Version Upgrades: Manage system upgrades, applying Siemens bes

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Contract, Third Party

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

Remote

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6d ago

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# Software Engineer

Remote or Sandy, Utah

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Today

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

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

Remote

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3d ago

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

W2 - Software Engineer (.NET, C#, React Native, REST API, Node.js, SQL, Postgres, ADO) - Remote

Remote or Hybrid in Minnesota

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Today

Duties: The Software Engineer will join our Research Custom Apps unit at client Clinic to work on various projects involving front-end, back-end, database, and reporting technologies. He/She will primarily work with the team lead for work assignments and collaborate with the business users and other IT technical teams to gather requirements or additional information. This person will be responsible for developing, testing, documenting, and supporting web and mobile applications using a range of

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Contract

Compensation information provided in the description

C# Software Engineer

Remote or Hybrid in Fort Worth, Texas

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Today

C# Software Engineer (I-V) Location : Ft Worth, TX (Hybrid or Remote) Target Start Date : 12/8/2025 Long-Term Contract (3-4 years) Pay Rate : $35.60 - $99.35/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

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Full-time

USD 35.60 per hour

.Net Developer with Networking

San Francisco, California

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12d ago

Job Description : We are seeking a skilled .NET Developer with a strong background in networking concepts and protocols to join our team. The ideal candidate will design, develop, and maintain .NET applications while ensuring seamless integration with networked systems and secure communication across platforms. Reasonability:- Develop, test, and deploy applications using .NET Framework / .NET Core.Implement and maintain RESTful APIs, web services, and backend components.Work on network-related

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Contract

$40,000 - $60,000

.Net Backend Developer

Fremont, California

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3d ago

Job Title: .Net Backend Developer Job Location: Fremont, CA (Onsite) Duration: Long Term Description: AgreeYa is a global Systems Integrator seeking an experienced .Net Backend Developer to join our growing team. This role requires a skilled professional to design, develop, and support high-quality backend services and APIs that integrate with databases and distributed systems and support mission-critical business operations for our customers. Job Responsibilities: Contribute to the complete sof

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Third Party, Contract

Depends on Experience

.Net Fullstack Developer

Fremont, California

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3d ago

Job Title: .Net Fullstack Developer Job Location: Fremont, CA (Onsite) Duration: Long Term Description: AgreeYa is a global Systems Integrator seeking an experienced .Net Fullstack Developer to join our growing team. This role requires a skilled professional to design, develop, and support high-quality web applications that integrate with backend systems and support mission-critical business operations for our customers. Job Responsibilities: Contribute to the complete software development lifec

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Contract, Third Party

Depends on Experience

C# Developer (Application Encryption)

Remote or Hybrid

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Today

Our Fortune 100 client is looking for TWO (2) backend C# Developers to focus on using SQL Always Encrypted to secuire highly sensitive information for their applications. The ideal candidate will have experience securing .NET applications with a SQL Server backend using SQL AE and OWASP Top 10, standards. This is a fully remote position but candidates must live and work within the 48 contiguous states and work during core EST business hours. Our client has a large, cutting edge IT shop, a gre

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Contract

DOE

C# Developer with (Advanced SQL Development expereince) - 14+ Years of expereince is required

Remote

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6d ago

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 Posit

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Contract, Third Party

Depends on Experience

C# Developer with automation testing

Remote

•

Today

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

C# Software Engineer

Remote or Hybrid in Mendon, Utah

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Today

C# Software Engineer (I-V) Location : Mendon/Logan, UT (hybrid or remote) Target Start Date : 1/5/2025 Long-Term Contract (3-4 years) Pay Rate : $35.61 - $99.35/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 deploym

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Full-time

USD 35.61 per hour

Sr. Software Engineer (C#, .NET)

Remote

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Today

Job Title: Sr. Software Engineer (C#, .NET) Location: Remote (Candidate should work CST Hours) Duration: 6 Months 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 operations and mu

Full-time

Senior SDET (C#)

Remote or Hybrid in Cleveland, Ohio

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Today

Our Fortune 100 client is hiring for a Senior Systems Test Engineer who is highly proficient with test automation frameworks' creation and enhancement.You ll code in C# and TypeScript, build and enhance REST API and web test frameworks, and leverage tools like Postman, SQL Server, and Git to deliver high-quality releases. This remote, ET-hours role is perfect for a developer-minded tester passionate about automation and modern full-stack technologies such as Angular, React, and cloud integration

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Contract

DOE

Azure Integration Architect/Developer (Python, C#)

Remote

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19d 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 C# Developer

Remote or Hybrid

•

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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26d 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

Senior Product Engineer (.NET C#/React)

Remote

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Today

At Allstate, great things happen when our people work together to protect families and their belongings from life's uncertainties. And for more than 90 years our innovative drive has kept us a step ahead of our customers' evolving needs. From advocating for seat belts, air bags and graduated driving laws, to being an industry leader in pricing sophistication, telematics, and, more recently, device and identity protection. Job Description A Senior Product Engineer implement applications following

Full-time

USD 78,600.00 - 142,275.00 per year

Backend (.NET) Developer

Fremont, California

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11d ago

Need Local only What You ll Do Design, develop, and maintain robust backend services using .NET Core and C#, focusing on high-performance, scalable applications that support Client's innovative productsBuild and optimize RESTful APIs to enable seamless integration between services, frontend applications, and external systemsImplement message queuing and streaming solutions with RabbitMQ and Kafka to handle real-time data processing and event-driven architecturesWrite efficient SQL queries in My

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Contract, Third Party

$60 - $70

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C# jobs in San Francisco, CA, USA