C# jobs in California

Remote or Hybrid in Cleveland, Ohio

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Today

Our Fortune 100 client is hiring for a Senior Software Developer in Test who is highly proficient with test automation framework creation and enhancement. In this role, you ll work closely with developers to implement Reqnroll for scalable automated testing. The role is open to fully remote but candidates but must be willing to work ET hours within the United States. Day-to-Day Responsibilities: - Lead and implement automated testing using Reqnroll (SpecFlow-style BDD automation) for .NET servic

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Contract

DOE

Test Automation Lead with (C# Selenium, AI tools, Performance testing)

Remote

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Today

Job Title: Test Automation Lead with (C# Selenium, AI tools, Performance testing) Location: Dallas, TX, St Louis, MO, Las Vegas, NV Hybrid Employment Type: Full-Time About Infinite: Infinite is a global leader in digital engineering and IT services, with over 20 years of experience driving digital transformation. We partner with leading Fortune 1000 companies to deliver innovative, scalable technology solutions that accelerate business outcomes. With deep expertise in telecommunications, healthc

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Full-time

Up to $90,000

.Net Developer

Remote

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Today

Title: .Net Developer Location: Remote Duration: 6+ Months Contract to hire The Full Stack .Net Developer is responsible for designing, developing, testing, implementing, and supporting enterprise applications utilizing a modern technology stack that spans front-end, back-end, database, cloud, and integration platforms. This role requires proficiency across the full application stack, including user interface development using HTML, CSS, JavaScript, TypeScript, React, Angular, and related frame

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Contract

Depends on Experience

Senior Software Development Engineer (C# / Power Pages / CRM)

Remote or Redmond, Washington

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Today

job summary: Join a specialized engineering team dedicated to protecting global customer systems and fighting cybercrime. In this role, you will design, develop, and deploy scalable CRM applications and intuitive customer portals that safeguard critical digital infrastructure. location: Telecommute job type: Contract salary: $65.74 - 75.74 per hour work hours: 8am to 5pm education: Bachelors responsibilities: Design and implement custom enterprise CRM solutions and customer-facing Power Pa

Contract

USD66 - USD76

Lead Software Engineer (C# .NET Azure)

Hybrid in Los Angeles, California

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4d ago

Job Title: Lead Software Engineer Location: Los Angeles, CA (Hybrid 3 days/week later) We are seeking a Lead Software Engineer to join the Risk Team and build scalable, secure, and resilient systems supporting fraud detection, risk scoring, and compliance automation. Must haves: Fintech experience, .NET, C#, Azure Key Responsibilities: Design and develop backend services, APIs, and microservices for risk and fraud platforms Lead technical initiatives around system reliability, observability, inc

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Contract

$60 - $80

Automation/Controls Software Engineer (C#/C++)

Livermore, California

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8d ago

Position Title: Automation/Controls Software Engineer (C#/C++) Location: Livermore, CA (Onsite) Duration: 2 Options: Direct-hire Permanent (Preferred) OR Contract-to-Hire (Targeting 2 3 months conversion to perm) Start Date: As Soon As Possible Scope of Work / Summary of Problem Statement The client is seeking to add Multiple Controls Software Engineers to support the design and development of software for high-precision manufacturing equipment built in-house. These positions will support ongoin

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Full-time

$135,000 - $175,000

Full Stack Developer( C#, .Net, Angular)

Fremont, California

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Today

Full Stack Developer( C#, .Net, Angular) 6-12 Month w/ potential CTH Onsite in Fremont, CA Interview Process: Onsite JOB DESCRIPTION Top Requirements: 35 years of experience.Hands-on experience with .NET/C# and Angular35 years of professional software engineering experience developing customer-facing web applications.Strong hands-on experience with:C#ASP.NETAngularTypeScriptJavaScriptREST API development and integrationMySQLExperience building and supporting scalable, high-performance applicati

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Contract

60 - 62

C# .Net Full Stack Engineer - Canada, Remote

Remote

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Today

Job Title: C# .NET Full Stack Engineer (AI/LLM) Location: Canada (Candidates must be currently based in Canada) Employment Type: Long-Term Contract About the Role We are seeking an experienced C# .NET Full Stack Engineer with strong expertise in modern backend and frontend development, cloud technologies, and AI-powered application development. The ideal candidate will have hands-on experience building scalable enterprise applications using C#/.NET, Azure, Next.js, and React, along with practica

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Contract, Third Party

Full Stack Developer (.NET/C# & Angular)

Fremont, California

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Today

We are seeking a Full Stack Developer with strong experience in C#, .NET, and Angular to join our team supporting Tesla. This is a hands-on development role focused on building and supporting scalable, customer-facing web applications. Required Skills35 years of professional software development experienceStrong hands-on experience with:C#ASP.NET/.NETAngularTypeScriptJavaScriptREST API development and integrationMySQLExperience developing scalable, high-performance web applicationsStrong underst

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Contract

45 - 50

.NET (C#) and/or Python Developer

Fremont, California

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Today

We are assisting a client with hiring a Senior Programmer with experience in C#.Net ad/or Python, to work on a team in Fremont, CA. No 3rd party candidates can be considered for this role. Salary: $120,000 - $145,000 Location: Onsite in Fremont, CA About the role: We are looking for a Senior Programmer/Analyst with strong hands-on development skills to design, build, and integrate enterprise systems across Shipping, Billing, RMA (Return Merchandise Authorization), Finance, and Customer Inte

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Full-time

$120000 - $145000 per annum

Test software engineer(LabVIEW, Matlab, Python, and C#) (Only W2))

Sunnyvale, California

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5d ago

Location: Sunnyvale, CAFulltime onlyJC: 183439 100% Onsite Role Description In this role the test software engineer will be responsible for developing and debugging LabVIEW and Python based code. Develop LabVIEW software to utilize different testing equipment on optical bench interphasing DUT (Device under test) with test equipment such as Spectrum analyzer, Oscilloscope, Lasers, Optical transceivers, NI cards, interfacing with custom PCBAs through USB etc. DLLs, Python and Matlab code will be

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Full-time

100,000 - 105000

QA Engineer - Playwright and C# exp - Hybrid - Plano, TX - W2

Remote or Plano, Texas

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Today

We are seeking a skilled Senior QA Engineer to join our dynamic software development team. In this role, you will lead quality assurance initiatives across web applications and web services. You will be responsible for traditional manual/API testing, backend data verification, and building modern, reliable automated test suites. The ideal candidate blends strong foundational QA practices with modern automation expertise, possesses object-oriented coding skills, and is adept at utilizing AI-assis

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Contract

Senior React Developer (.NET/C# & Azure)

Los Angeles, California

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7d ago

Hi Good Morning, Job Title: Senior React Developer (.NET/C# & Azure) Location: Los Angeles, CA (Onsite) Duration: Long term Contract (Potential Extension) Position Overview We are seeking an experienced React Developer with strong front-end expertise and a solid background in .NET, C#, and Microsoft Azure for a long-term onsite engagement in Los Angeles, CA. The ideal candidate will be a hands-on Senior React Developer who can build modern web applications using React while collaborating acros

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Contract

Application Developer

Hybrid in Rancho Cucamonga, California

•

Yesterday

Title : Application Developer Location: Rancho Cucamonga ,CA (Hybrid) Required Skills : Clientside implementations and frameworks such as Angular (Angular or AngularJS). Software development languages C#, with strong emphasis on web service development, Web API Development architecture (MVVM and MVC). Software development languages C# & Java with an acute emphasis toward web service development (WCF, Web API). Messagebased architecture and asynchronous processing using RabbitMQ. Web

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Contract, Third Party

Depends on Experience

Senior C#/Angular Developer

Remote or Hybrid

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Today

Our Fortune 100 client is hiring for a Senior Fullstack Developer to focus on Angular front-end development and C# back-end to enhance capabilities. This role requires expertise in C#, .NET (back-end), Angular (v18+), JavaScript, HTML (front-end), SQL Server, and APIs. You'll analyze requirements, write and test code, support production systems, and ensure seamless software integration. Experience with Duck Creek insurance platform is a plus. This is a fully remote role foowing an ET work schedu

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Contract

DOE

Senior .NET / React Developer (.NET/C# & Azure)

Los Angeles, California

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7d ago

Job Title: Senior .NET / React Developer (.NET/C# & Azure) Location: Los Angeles, CA (3 days onsite) Duration: Long-Term Contract F2F Interview must Only Local who can go for F2F Must-Have Skills Strong experience with .NET / C# Strong experience with React Hands-on experience with Microsoft Azure Expertise in designing and developing modern web applications Strong understanding of modern web architecture and technologies Experience building scalable, enterprise-level web solutions Key R

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Contract, Third Party

Senior Windows Software Engineer (C# & .NET)

Remote

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4d ago

Position: Senior Microsoft Software Engineer (.NET, C# & Windows internals) Location: 100% REMOTE Employment type: Contract to hire Customer domain: Information Technology & Cybersecurity About the Role:Build and evolve the client's software Bot, the core automation engine behind the client s Windows endpoint management platform, while helping shape technical architecture and delivering secure, reliable software in C# and .NET. You will be working on the Microsoft operating system code.The perso

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Contract

$65 - $75

W2 (No C2C) :: Remote (EST & CST Only) :: Sr Technical Lead / Architect with C#, AWS & Healthcare Data Solutions Exp.; G.C / U.S.C

Remote

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Today

Sr. Technical Lead / Architect with C#, AWS & Healthcare Data Solutions Exp || G.C / U.S.C 18+Months Remote (EST & CST Only) **About the Company:** Join an innovative healthcare informatics organization dedicated to delivering cutting-edge technology for patient engagement, physician access, pharmacy benefit management, and payer data analytics. We partner with industry leaders in pharmaceuticals, biotechnology, and life sciences to optimize patient journeys and drive operational excellence th

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Contract

Depends on Experience

Sr. Fullstack Developer - Interactive

Hybrid in Glendale, California

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Today

Title: Senior Full-Stack Developer - Interactive Location: Hybrid - Glendale, CA Duration: 6 Months + Position Summary Seeking a highly skilled Senior Full-Stack Developer to design and develop next-generation interactive facility maps and digital rental experiences for our customers. This role will focus on transforming static property and unit maps into dynamic, customer-friendly digital experiences that provide real-time unit availability, pricing, promotions, and online rental capabilities

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Contract

Depends on Experience

Full Stack C#/Angular Developer

Remote

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8d ago

Job Title:Full Stack C#/Angular Developer Location: Remote Duration: 12 Months + Extension Bill Rate: $70/hour Job Type: C2C/1099 Contract Client: To Be Discussed Later Work Authorization: U.S. Citizen, H-1B, OPT-EAD, GC-EAD POSITION SUMMARY: What to Expect The Insurance Claims Application team is seeking a Backend Software Engineer to contribute to the development of our Web App. These products are part of the advanced platforms for managing Service workflow for Vehicle, Insurance Claims and E

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Contract

$60 - $70

C# jobs in California, USA