46 net c developer jobs at 27 companies in San Marcos, CA
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Software Engineer (C#/.NET)
Carlsbad, California, United States
$101k-$134k/yr OnsiteFull Time
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
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
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
6d
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Principal Software Engineer (Medical Device Software/C#, .NET, Windows)
Lake Forest, California, United States
$128k-$166k/yr OnsiteFull Time
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
3w
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Full-Stack .NET/Mobile Developer
San Diego, California, United States
$90k-$130k/yr OnsiteFull Time
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
1w
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Lead Full Stack Engineer (.Net, Vue/React) - Fully Remote
Guadalajara or Tijuana
RemoteFull Time
8+ YOE2+ Mgmt8+ years full stack experience with .NET Core/C#, GraphQL, MongoDB, Docker; 2+ years leading teams; front-end with JavaScript and Vue.js or React.js; cloud and microservices experience; TDD and DDD familiarity.
.NET Core, C#, GraphQL, MongoDB, Docker, JavaScript, Vue.js, React.js, AWS, Azure, Google Cloud
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Senior Software Engineer
Lake Forest or Houston or Philadelphia
$124k-$207k/yr HybridFull Time
Strong software development in C# (.NET) or Node.js; hands-on Microsoft Azure cloud experience; CI/CD, DevOps, container experience; knowledge of cloud architecture, networking, and secure development practices.
Microsoft Azure, C#, .NET, Node.js, CI/CD
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Senior Software Engineer
San Diego, California, United States
$124k-$187k/yr HybridFull Time
Bachelor's degree required. Strong C#/.NET experience, hands-on AWS, experience using Claude for AI-assisted development, API and backend development skills, software design and mentorship experience.
C#, .NET, .NET Core, Claude, AWS, EC2, ECS, EKS, Lambda, S3, RDS, DynamoDB, CloudWatch, Databricks, Terraform, CloudFormation, CDK, Git
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Software Engineer
San Diego, California, United States
$136k-$141k/yr OnsiteFull Time
3+ YOEBachelor's degree, 3+ years software experience with C++ and C#/.NET, expertise in image processing (OpenCV), Linux/embedded systems, RESTful/WebSocket networks, and English technical documentation.
C++, C#, .NET, Windows, Linux, OpenCV, RESTful APIs, WebSockets, CMake, Qt, Android, OCR, USB, PC/SC
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Senior Software Engineer
Carlsbad, California, United States
$130k-$180k/yr OnsiteFull Time
7+ YOEBS in Computer Science,7+ years software experience,expert C#/.NET for Windows,WPF desirable,motion systems and hardware interface experience,EM/vision knowledge and Python/C++ are a plus.
C#, .NET, WPF, C++, Python, MS Windows
3w
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Principal Software Engineer
San Diego, California, United States
$190k-$210k/yr OnsiteFull Time
15+ YOE15+ years software engineering experience with 8+ years in regulated medical devices, familiarity with IEC 62304 and FDA PMA processes, proficiency in .NET/C#/Blazor/.NET MAUI, Azure, embedded firmware, and strong cybersecurity and leadership skills.
.NET, C#, Blazor, .NET MAUI, EF Core, SQLite, Azure DevOps, Git, Figma, Claude Code, Azure, Bluetooth, gRPC
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Senior Software Engineer
Carlsbad, California, United States
$140k-$160k/yr OnsiteFull Time
5+ YOE5+ years commercial R&D software development; strong C#/.NET skills; experience with distributed systems (RabbitMQ), Windows apps, testing, CI/CD, requirements tools (DOORS/Jama/Ketryx), Confluence, and regulated (FDA/QSR, IEC 62304/ISO 13485) environments.
C#, .NET, WPF, RabbitMQ, GitHub, Microsoft Azure DevOps, DOORS, Jama, Ketryx, Confluence, AI agents, AI-powered code generation tools
1w
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Sr. Sage 300 Developer
Poway, California, United States
$130k-$135k/yr OnsiteFull Time
7+ YOE7+ years software development with expert Sage 300 ERP, VB6, C#/.NET, Python, and SQL Server; experience with integrations, reporting, and mentoring.
Sage 300 ERP, COM API, Web APIs, Orchid Extender, VB6, C#, .NET Framework, Python, Microsoft SQL Server, T-SQL, Crystal Reports, Sage Intelligence, REST APIs, Swagger/OpenAPI, JSON, XML, Git, CI/CD
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Senior Software Engineer
San Diego, California, United States
$124k-$187k/yr HybridFull Time
Bachelor's degree required; strong C#/.NET and AWS experience; hands-on use of Claude preferred; experience building cloud-native, scalable backend services; Git and CI/CD familiarity.
C#, .NET, .NET Core, Claude, AWS, EC2, ECS, EKS, Lambda, S3, RDS, DynamoDB, CloudWatch, Git, Databricks, Terraform, CloudFormation, CDK
3w
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Senior Software Engineer
Fort Mill or Charlotte or San Diego or New York City
$106k-$177k/yr OnsiteFull Time
4+ YOE4+ years professional C#/.NET development, 3+ years CQRS/event sourcing and AWS experience; proficiency with containerized deployments, Terraform, event streaming (Kafka), and cloud-native patterns.
C#, .NET 6, AWS, EKS, Helm, Terraform, Lambda, API Gateway, DynamoDB, ElastiCache, RDS, Kafka, PostgreSQL, SQL Server, AWS Glue, PySpark, GitHub Copilot
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System Level Test Engineer
San Diego, California, United States
$94k-$141k/yr OnsiteFull Time
0+ YOEBachelor's in EE/CS or related, 0-3 years system/bench-level testing experience, knowledge of computer architecture/OS, embedded/SoC testing, test plan development, Perforce/Git, programming (C, C++, Python, C#, .NET), and lab measurement tools.
Perforce, Git, C, C++, Python, C#, .NET, Android, Microsoft Windows, Linux, RTOS, JTAG, Lauterbach, Trace32, oscilloscopes, logic analyzers, power supplies, Dhrystone, DOU, test sequencers
1w
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Software Engineer
Carlsbad, California, United States
$95k-$126k/yr OnsiteFull Time
0+ YOE0-3 years software experience, BA/BS required, experience with Node.js, Python, C#, C/C++, .NET/.NET Core, Linux, cloud (Azure preferred), strong analytical and communication skills.
Node.js, Python, C#, .NET, .NET Core, C++, Linux, AWS, Azure
1w
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Cyber Software Engineer (TG)
Annapolis Junction or Aurora or San Diego or Raleigh
$96k-$151k/yr OnsiteFull Time
2+ YOEBachelor's degree with 2 years experience, active TS/SCI with polygraph, experience in Python or C/C++, troubleshooting and debugging skills.
Assembly, C, C++, Java, Perl, Python, Visual Studio, .NET, UNIX, make files
1w
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Application Developer
Rancho Santa Margarita, California, United States
$80k-$120k/yr OnsiteFull Time
3+ YOEBachelor's in CS/IT/Software Engineering or equivalent experience; proficiency in C#/.NET Core, React, TypeScript; 3+ years experience; knowledge of SQL Server/PostgreSQL/Azure Cosmos DB, Azure deployments, CI/CD, automated testing, and strong communication.
C#, .NET Core, React, TypeScript, SASS, SCSS, Flexbox, CSS Grid, Webpack, Vite, npm, yarn, SQL Server, PostgreSQL, Azure Cosmos DB, RESTful, GraphQL, Azure, App Services, Azure Functions, Docker, Kubernetes, Figma, xUnit, NUnit, Cypress, Playwright, React Testing Library, Azure Active Directory (Azure AD), Auth0, Azure DevOps, GitHub Actions, GitHub Copilot, Git, Azure Service Bus, RabbitMQ
1w
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Software Engineer
Carlsbad, California, United States
$95k-$126k/yr OnsiteFull Time
0+ YOE0-3 years experience, proficiency in Node.js, Python, C#, C/C++, .NET, Linux; cloud experience (Azure preferred), BA/BS required, strong analytical and communication skills.
Node.js, Python, C#, .NET, C/C++, Linux, AWS, Azure
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