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258 net c developer jobs at 149 companies in California

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C#/.NET Developer (Application & Database Development)
Chicago or Arizona or California or Colorado or Connecticut or Delaware or Florida or Georgia or Illinois or Indiana or Massachusetts or Maryland or Minnesota or North Carolina or New Jersey or New York or Pennsylvania or Tennessee or Texas or Utah or Virginia
HybridContract
FDM Group
FDM GroupLondon Stock Exchange: FDM: FDM provides IT consultancy and technology staff augmentation services.
5+ YOEBachelor's degree and 5+ years software development experience with C#, .NET, SQL Server, T-SQL, Git; strong analytical and communication skills; financial services experience preferred.
C#, .NET Framework, .NET Core, .NET 8+, ASP.NET MVC, ASP.NET Core, REST APIs, Microsoft SQL Server, T-SQL, Entity Framework, LINQ, JSON, XML, Visual Studio, Azure DevOps, Git, SQL Server Management Studio (SSMS), Power BI, Jira, SSIS, SSRS, SQL Server Agent, Docker, CI/CD pipelines
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2mo
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Senior Software Engineer (C#, C++, .NET)
Milpitas, California, United States
$136k-$232k/yr OnsiteFull Time
KLA
KLANASDAQ: KLAC: Provides process control and yield management for semiconductor manufacturing.
5+ YOE7+ years software development in C++, C#, .NET; Windows 64-bit; multi-threading; architecture; GUI; semiconductor domain experience preferred.
C++, C#, .NET, Windows Internals, STL, WinDBG, Microsoft Visual Studio, GUI, Multi-threading
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1mo
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SOFTWARE DEVELOPER (.NET/C#)
Norco, California, United States
$95k-$150k/yr OnsiteFull Time
VSolvit
VSolvit: Providing technology services and data solutions for government agencies.
3+ YOEOn-site Norco role requiring 3+ years software development experience with C#/.NET desktop applications, OOP, multi-threading/TPL, Git, strong communication, U.S. citizenship, and ability to obtain a U.S. government security clearance.
C#, .NET, Delphi, Unity, Git, Jira, Confluence, Avalonia UI, WPF, WinUI, MAUI, Task Parallel Library (TPL), SAFe, Scrum
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Software Engineer (C#/.NET)
Carlsbad, California, United States
$101k-$134k/yr OnsiteFull Time
Rockstar Games
Rockstar GamesNASDAQ: TTWO: Developer and publisher of world-class interactive entertainment and games.
4+ YOE4+ years building scalable distributed systems; expert in C# and/or C++; strong CS fundamentals, API design, web service scalability, and database development (MSSQL); experience with source control.
Windows Server, Microsoft SQL Server, IIS, .NET, C#, C++, MSSQL, Perforce, Xbox Live, Sony NP, Games for Windows Live
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Software Engineer (C#/.NET)
New York or Carlsbad
$101k-$134k/yr OnsiteFull Time
Rockstar Games
Rockstar Games: Creates and publishes world-class open-world video games.
4+ YOE4+ years in scalable distributed systems; expert in C# and/or C++; strong OO design; API design; web service scalability; MSSQL; Perforce.
Windows Server, SQL Server, IIS, .NET, C#, C++, MSSQL, Perforce, REST API, Web Services
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Senior .NET Engineer
Carlsbad or United States
HybridFull Time
NTENT
NTENT: Develops semantic search and natural language processing technology platforms.
3+ YOE3+ years experience; .NET Core and C#; multi-threaded programming; REST APIs; scalable architectures; distributed data stores (Aerospike, Elasticsearch, Kafka); testing.
.NET Core, C#, REST API, Aerospike, Elasticsearch, Kafka, Docker, Kubernetes, Git, React, JavaScript, TypeScript, HTML, CSS
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1mo
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LoopNet - Senior Software Engineer (C#/.NET)
Irvine or Orange County
$124k-$187k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Provides global real estate information, analytics, and online marketplaces.
7+ YOEBachelor's degree, 7+ years production .NET/C# experience, AWS and Apache Kafka experience, frontend knowledge (Vue/React/Angular, TypeScript), SQL/NoSQL, Git, unit/performance/integration testing experience.
C#, .NET, .NET Core, AWS, Apache Kafka, Vue, React, Angular, TypeScript, Microsoft SQL, MySQL, NoSQL, Git, GitHub Copilot, Claude Code
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LoopNet - Senior Software Engineer (C#/.NET)
Irvine, California, United States
$124k-$187k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Global provider of commercial and residential real estate data.
7+ YOEBachelor's degree required; 7+ years production .NET/C# experience; AWS and Kafka experience; frontend knowledge (Vue/React/Angular, TypeScript); SQL/NoSQL and Git workflows; unit, integration, and performance testing experience.
C#, .NET, .NET Core, AWS, Apache Kafka, Vue, React, Angular, TypeScript, Git, SQL, MS SQL, MySQL, NoSQL, Claude Code, GitHub Copilot
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Senior .NET Engineer
Toronto or Canada or San Francisco or New York City or Chicago or Manila
$110k-$150k/yr RemoteFull Time
Derivative Path
Derivative Path: Provides cloud-based software for managing financial derivatives and hedging.
7+ YOE7+ years building production software; strong C# and ASP.NET; React and database experience (Postgres, MS SQL, MongoDB); CI/CD and automated testing; DDD/SOA/microservices experience; mentoring experience; CS degree or equivalent.
C#, ASP.NET, Postgres, MS SQL, MongoDB, React, CI/CD, Docker, Kubernetes, AWS CDK, Terraform, Blazor
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iClassPro Inc - Senior Developer .NET
United States or California or New York
RemoteFull Time
iClassPro
iClassPro: Provides management software for youth activity centers and schools.
5+ YOE5+ years C# experience with ASP.NET Core, full-stack skills (React/Next.js), proficiency in Entity Framework Core, LINQ and SQL; strong architecture mindset and ability to mentor developers; U.S. work authorization required.
C#, ASP.NET Core, React, Next.js, Entity Framework Core, LINQ, SQL, Culture Index, E-Verify
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.Net Developer - Security Specialist
Yolo County, California, United States
$7k-$11k/mo HybridFull Time
State Controller's Office
State Controller's Office: California's fiscal controller managing state financial operations and assets.
Experience with C#, T-SQL, .NET MVC, Web API, Angular (v2+), TypeScript, SQL Server/SSMS, SSRS, LINQ, Active Directory, and web technologies (HTML5,CSS3,JavaScript).
C#, T-SQL, HTML5, CSS3, JavaScript, jQuery, RxJS, .NET MVC, Web API, Angular, TypeScript, SQL Server Management Studio (SSMS), SSRS, LINQ, Angular CLI, npm, Active Directory, Report Builder, .NET Framework, HttpClient, RDL
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C, C++ Software Engineer II
Santa Clara, California, United States
$124k-$171k/yr OnsiteFull Time
Applied Materials
Applied MaterialsNASDAQ: AMAT: Manufacturers of equipment for semiconductor and display production.
1+ YOEProficient in C and C++; experience with real-time/embedded/motion control, multithreading, CAN Bus, C#, .NET, Visual Studio, Matlab. Master's+1yr or Bachelor's+3yrs professional experience; strong communication and problem-solving skills.
C, C++, C#, .NET, Visual Studio, Matlab, CAN Bus
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Principal Software Engineer (Medical Device Software/C#, .NET, Windows)
Lake Forest, California, United States
$128k-$166k/yr OnsiteFull Time
Alcon
AlconNYSE: ALC: Manufactures ophthalmic surgical equipment and vision care products.
5+ YOE5+ years developing Windows-based software using C#, .NET and related Microsoft technologies for regulated medical device environments; strong architecture, OOD, multi-threading, networking, and communication skills.
C#, .NET, WPF/XAML, MVVM, C++, Git, HL7, FHIR, DICOM, Protocol Buffers, TCP/IP
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3w
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Full-Stack .NET/Mobile Developer
San Diego, California, United States
$90k-$130k/yr OnsiteFull Time
Applications International Corporation
Applications International Corporation: Delivers cloud-based environmental health, safety, and ESG compliance software.
5+ YOE5+ years full-stack .NET experience, 3+ years mobile (.NET MAUI/Xamarin), ASP.NET/C# backend, REST API and SSO experience, Azure and CI/CD familiarity, bachelor’s degree or equivalent preferred.
.NET MAUI, Xamarin, ASP.Net, MVC, C#, VB.Net, SSIS, Azure, Visual Studio, Git, Azure DevOps, GitHub Actions, SQL Server, OAuth 2.0, OpenID Connect, SAML
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1mo
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Payments .NET Application Developer
Charlotte or Scottsdale or Dallas or Cleveland or California or Colorado or District of Columbia or Illinois or Maryland or Massachusetts or Minnesota or New York or New Jersey or Washington
$44-$54/hr HybridFull Time
Accenture
AccentureNYSE: ACN: Global provider of management consulting and technology services.
5+ YOE5+ years .NET development experience; proficient in C# and .NET core; relational DB experience (Oracle/MSSQL/PostgreSQL); Visual Studio and Git; strong OOP, design patterns, and communication skills; associate or bachelor degree.
.NET core, C#, Oracle, MSSQL, PostgreSQL, Microsoft Visual Studio, git, ASP.NET Core MVC, Web API, SQL Server, Entity Framework Core, ReactJS, VueJS, HTML, CSS, JavaScript, NUnit, xUnit, CockroachDB, Kafka
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2mo
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Lead Product Engineer – .NET and AI Driven
New York City or Birmingham or Miami or Tampa or Blue Ash or Cincinnati or Los Angeles
$140k-$199k/yr HybridFull Time
Green Dot
Green DotNYSE: GDOT: Provides mobile banking and payment solutions to consumers and businesses.
8+ YOE8+ years in software engineering; .NET/C# expertise; SQL Server; Azure migration; AI-assisted development; automated testing; CI/CD.
.NET, C#, SQL Server, Azure, AKS, Cosmos DB, App Services, Functions, GitHub Copilot, Claude
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C# Software Engineer II – Feature Services
Redlands, California, United States
$101k-$167k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
2+ YOE2+ years coding in C#, C++, and .NET; experience with Azure, REST API design, spatial databases (PostgreSQL/SQLServer/NoSQL), GIT, and computational geometry; bachelor’s degree required.
C#, C++, .NET, Azure, GIT, JSON, HTTP, PostgreSQL, SQLServer, REST
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Senior Full Stack Cloud Developer (.Net / Azure)
Irvine, California, United States
$155k-$172k/yr HybridFull Time
Home Franchise Concepts
Home Franchise Concepts: Provides franchising platforms for home and lifestyle services.
7+ YOESenior full stack developer with 7+ years, Azure cloud, .NET/C#, Angular, REST APIs, CI/CD, IaC (Terraform), AI tooling.
C#, .NET, Azure, Azure DevOps, Terraform, Angular, REST APIs, GitHub Copilot, Seq, SolarWinds, New Relic
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2mo
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Staff Software Engineer (C#/Java/AI) - Underwriting Automation - Hybrid
Bethesda or Richardson or Palo Alto
$110k-$230k/yr HybridFull Time
GEICO
GEICO: Provides vehicle and property insurance services to consumers.
8+ YOEAPI-first design, microservices, full-stack development, cloud deployments; 8+ years; Java, .NET/C#, Python; Kubernetes and cloud experience.
Java, C#, Python, GraphQL, gRPC, Kafka, Docker, Kubernetes, SQL, NoSQL, MySQL, PostgreSQL, Cosmos, Cassandra, Trino
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Senior Software Engineer, Cloud Systems
California, United States
$120k-$140k/yr RemoteFull Time
QuidelOrtho
QuidelOrthoNASDAQ: QDEL: Develops and manufactures in vitro diagnostic healthcare testing solutions.
6+ YOEBachelor's degree and 6+ years software development experience with cloud systems, C#/ .NET, TypeScript/JavaScript, SQL/NoSQL, Azure and strong communication and organizational skills.
Windows, Linux, C#, .NET, .NET Core, TypeScript, JavaScript, C, C++, Angular 20+, SQL, NoSQL, Azure, Service Bus, Queues, IoT platforms, Python, GitHub Copilot, Claude, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Microsoft Outlook, Visual Studio, Visual Studio Code, Azure DevOps, GitHub, Docker, GIT
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