73 c net developer jobs at 37 companies in Bonsall, CA
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SOFTWARE DEVELOPER (.NET/C#)
Norco, California, United States
$95k-$150k/yr OnsiteFull Time
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
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
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LoopNet - Senior Software Engineer (C#/.NET)
Irvine or Orange County
$124k-$187k/yr HybridFull Time
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
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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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
4w
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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
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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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Illustrations Applications Developer
Newport Beach, California, United States
$103k-$126k/yr OnsiteFull Time
2+ YOE2+ years application development experience; bachelor\u0002s degree or equivalent; strong skills in .NET, VB.NET, C#, JavaScript, HTML, CSS, SQL and Microsoft Excel; knowledge of life insurance/annuity products preferred.
Microsoft Excel, .NET, VB.NET, C#, JavaScript, HTML, CSS, jQuery UI, Bootstrap, SQL
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Software Engineer - AI
Irvine, California, United States
$99k-$158k/yr HybridFull Time
3+ YOEBachelor's degree and 3+ years experience. Strong Python required; proficiency in Java or .NET (C#). Experience with LLMs, agent development, RAG, vector databases, cloud platforms, data processing, and APIs.
Python, Java, .NET, C#, Agent Development Kit (ADK), LangChain, NumPy, Pandas, Scikit-learn, NLTK, SpaCy, PostgreSQL, pgvector, Pinecone, Weaviate, ChromaDB, Google Cloud Platform (GCP), Amazon Web Services (AWS), Microsoft Azure (Azure), ReactJS, OpenAI, Google DeepMind, Anthropic, MCP (Model Context Protocol), LangGraph, CrewAI, Semantic Kernel, AutoGen, Docker, Kubernetes, REST APIs, JSON, XML, CI/CD
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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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Staff Cyber Software Engineer
Annapolis Junction or San Diego or Aurora or San Antonio or Cary
$186k-$292k/yr OnsiteFull Time
8+ YOEDegree in CS/IS/Network Engineering with 8+ years (PhD/8, MS/10, BS/12) experience; programming in Assembly, C, C++, Java, Perl, or Python; experience with Visual Studio/.NET or Unix/Linux build environments, network sockets and packet-level protocols; clearance with polygraph required.
CNO, Assembly, C, C++, Java, Perl, Python, Visual Studio, .NET, Unix, make, Linux, Windows, GOTS
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Software Engineer
Point Mugu or Camarillo or San Diego or Norfolk or Patuxent River or Melbourne or Japan or France
$115k-$150k/yr OnsiteFull Time
3+ YOE3+ years in full-stack software development and CI/CD; experience with Java, TypeScript, .NET, C#, JavaScript, SQL, Git, Docker, Kubernetes, microservices, Agile, JIRA, and Confluence. Bachelor's degree or substitutions; active DoD Top Secret clearance and US citizenship.
Continuous Integration Continuous Delivery (CI/CD), Java Spring Boot, Java, TypeScript, ReactJS, Redux, NPM, Material UI, RESTful web services, WebSockets, RabbitMQ, Advanced Message Queuing Protocol (AMQP), JPA, Hibernate, Git, Kubernetes, Confluence, JIRA, Docker, SQL, HTML, CSS, Bitbucket, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft SharePoint, .NET, C#, JavaScript, containers, microservices, Scaled Agile Framework (SAFe)
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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
4w
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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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Full Stack Developer
Norco, California, United States
$90k-$190k/yr OnsiteFull Time
5+ YOEBachelor's degree or equivalent, 5+ years software development experience, proficiency in Java/C#/Python/JavaScript/HTML/CSS, React/Angular, Node.js/.NET, cloud platforms, Microsoft SQL Server, Git; CompTIA Security+ and ability to obtain DoD SECRET; U.S. citizenship; onsite in Norco, CA.
Java, C#, Python, JavaScript, HTML, CSS, React, Angular, Node.js, .NET, AWS, Azure, Google Cloud, Microsoft SQL Server, Git, Docker, Kubernetes, CI/CD
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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
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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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Systems Integration Developer
Redwood City or Austin or Boston or Ann Arbor or Los Angeles or New York City or San Diego
$150k-$180k/yr HybridFull Time
Bachelor's degree in computer science, information systems, or related technical field; proficiency with Boomi, C#, .NET, PowerShell, and SQL Server; experience with enterprise integrations, automation, AI agents, and Azure services.
Dell Boomi, Microsoft Copilot Studio, PowerShell, SQL, Microsoft SharePoint, Microsoft 365, SSIS, SSRS, SQL Server, C#, .NET, Power Automate, Dataverse, Microsoft Teams, Dynamics 365, Azure Logic Apps, Azure AD, Azure Data Factory, Azure App Services, Azure DevOps, Application Insights, Intapp, Aderant Expert, iManage Work, Litera Compare, Clean, Peppermint (CRM product)