73 dotnet engineer jobs at 43 companies in Winchester, CA
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Systems Engineer
Temecula, California, United States
$75k-$120k/yr HybridFull Time
4+ YOE4+ years hands-on experience with PLC/SCADA/HMI, programming, networking; degree in engineering or computer science; strong communication; valid driver's license; willingness to travel.
PLC Programming, HMI, SCADA, Networking, Database, High-level programming, C#, HTML5, .NET, SQL, VB, VBA, Microsoft Office
3mo
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Sr. Platform Engineer
Irvine, California, United States
$129k-$161k/yr OnsiteFull Time
5+ YOE5+ years software engineering, proficiency in C#/Python/TypeScript, Azure and Terraform experience, CI/CD and API design experience, observability and automation skills.
C#, .NET, Python, TypeScript, Node.js, Azure DevOps, Terraform, Datadog, OpenTelemetry, Docker, Kubernetes, PowerShell, Backstage, GitHub Copilot
3w
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Senior Software Engineer
Brea, California, United States
$130k-$147k/yr HybridFull Time
6+ YOEBachelor's in Engineering/CS or equivalent, 6+ years software development, experience with C/C++ and modern stacks (Qt/QML, Node.js, Golang, React, Typescript, Python), and systems-level debugging.
C, C++, Linux, UNIX, Microsoft .NET, C#, JavaScript, SQL, Qt/QML, Node.js, Golang, React, Typescript, Python, PostgreSQL, Docker, MQTT, Microservices, npm, Bower, Webpack
1mo
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Senior Device Engineer - Lifecycle Management
Irvine or Pleasanton
$125k-$237k/yr HybridFull Time
8+ YOE8+ years engineering design experience, 5+ years embedded Windows programming with C#/.NET, medical device/regulatory experience preferred, knowledge of IEC 62304, experience with RS232/SPI/USB and PID control, proficiency with Microsoft Word and Excel.
C#, .NET, .NET Framework, Windows, Windows Embedded, RS232, SPI, USB, IEC 62304, Microsoft Word, Microsoft Excel
2w
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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
2w
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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
3w
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Senior Engineer, Full-Stack
Temecula, California, United States
$145k-$160k/yr OnsiteFull Time
7+ YOEBachelor's degree, 7+ years full-stack SaaS experience, proficiency with Azure and cloud-native architectures, backend (.NET), frontend (React/Angular), SQL/data modeling, security and healthcare compliance (PHI,21 CFR Part 11).
Azure, App Services, Functions, AKS, .NET, React, Angular, GraphQL, SQL, FHIR, HL7, CI/CD
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Systems Modeling and Simulation Engineer (Engineer or Principal Level)
Rancho Bernardo, California, United States
$92k-$171k/yr OnsiteFull Time
2+ YOEBachelor's in STEM with 2+ years (or higher-level degree/experience for principal), active U.S. Top Secret clearance, C#/C++/Java and .NET expertise, Visual Studio, WPF/MVVM/Blazor, CI/CD and version control, secure coding (NIST/DoD).
C#, C++, Java, .NET, CLR, JIT, Microsoft Visual Studio, WPF, MVVM, Blazor, gRPC, Bitbucket, GitHub, GitLab, Git, TFS, Azure DevOps, CI/CD, CommunityToolkit.Mvvm, AFSIM, Suppressor, Brawler
1mo
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Sr. Software Engineer
Irvine, California, United States
$112k-$191k/yr RemoteFull Time
5+ YOE5+ years enterprise software engineering with C#, .NET, SQL Server, Angular, and Azure; experience stabilizing production systems, building microservices/APIs, and mentoring teams.
C#, .NET, SQL Server, Angular, Azure, App Services, Functions, SQL Database, Kubernetes, Docker, DevOps pipelines
2mo
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CoE Support Engineer
Lake Forest, California, United States
$82k-$137k/yr HybridFull Time
Bachelor’s degree in electrical engineering, power systems, computer science; MES experience; HMI/SCADA troubleshooting; SQL/database knowledge; strong communication and collaboration skills.
SQL, Database, HMI, SCADA, VB.NET, C#, HTML5, Angular, JavaScript, ASP.NET, .NET CORE
2w
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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
1mo
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Database Developer
Oceanside, California, United States
$130k-$150k/yr OnsiteFull Time
5+ YOEBachelor's or equivalent experience, 5+ years database development/data engineering, advanced Microsoft SQL Server and Azure SQL skills, ETL/ELT (SSIS/Azure Data Factory/Databricks), data warehouse design, Python/PowerShell/.NET, Power BI/SSRS/Tableau.
Microsoft SQL Server, Azure SQL, SSIS, Azure Data Factory, Databricks, Oracle, MySQL, NoSQL, Python, PowerShell, .NET, SSRS, Power BI, Tableau
2w
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Sr. AWS Cloud Engineer
Irvine, California, United States
$110k-$140k/yr OnsiteFull Time
8+ YOEStrong AWS (EC2,EKS,VPC) and Terraform experience, Linux/Windows administration, CI/CD and Kubernetes skills; 8+ years cloud engineering and migration experience.
AWS EC2, EKS, VPC, S3, EFS, FSx, EBS, Terraform, AMIs, IAM, Java, .NET, TIBCO ESB, RHEL, Windows Server, CI/CD, Git, Oracle Exadata, SQL Server, Kubernetes, CloudWatch
2mo
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Principal Engineer - FullStack – Catalog
Irvine, California, United States
$130k-$135k/yr OnsiteFull Time
12+ YOEBachelor's degree required; 12+ years software engineering with principal-level leadership, expertise in backend languages and modern frontend frameworks, high-scale distributed systems, and AI-assisted development.
C#/.NET, Go, Java, Python, React, Copilot, Claude Code, Cursor
1mo
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Senior Software Engineer, Back-End (Payments)
United States or Santa Ana or San Francisco or Oakland or Berkeley or New Jersey or Texas or Florida or Shanghai or Hong Kong or Japan or Canada or Mexico or Germany or France
$141k-$229k/yr HybridFull Time
6+ YOE6+ years engineering experience, deep C#/.NET backend skills, frontend experience with React/Svelte/TypeScript, payments/gateway and distributed-systems experience, observability and security mindset.
Stripe, PayPal, C#, .NET, React, Svelte, TypeScript, PostgreSQL, DynamoDB, Kafka, Kubernetes, AWS, Datadog
2w
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Android Engineer
Costa Mesa or Seattle or Washington
$166k-$220k/yr OnsiteFull Time
Degree in CS/CE/Aerospace or related, experience building Android map-based and data-intensive UIs, proficiency with Jetpack Compose/Java/Kotlin and backend languages (C++, Rust, Go), networking (TCP/UDP/Multicast/HTTP/protobuf/gRPC), willingness to be on-call, and ability to travel up to 30%.
Jetpack Compose, XML, Java, Kotlin, C++, Rust, Golang, TCP, UDP, Multicast, HTTP, protobuf, gRPC, Android Tactical Assault Kit (ATAK), CMake, Cargo, gradle, NixOS, CircleCI, Docker, TypeScript, React, C++/Qt, C#/.NET, ArcGIS, Cesium, MapBox, TAK, Gitlab-CI, Python, Bash
1mo
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Full Stack Developer
Norco, California, United States
$90k-$190k/yr OnsiteFull Time
5+ YOE5+ years software development; Bachelor's in CS/Engineering or equivalent; proficiency in Java/C#/Python/JavaScript, front-end (React/Angular), back-end (Node.js/.NET), cloud (AWS/Azure/Google Cloud), Microsoft SQL Server, Git; CompTIA Security+; must obtain DoD SECRET and be U.S. citizen; onsite 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
4d
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Senior Quality Software Engineer, NPD - IHFM
Irvine, California, United States
$108k-$153k/yr OnsiteFull Time
4+ YOEEngineering degree required with 0–4 years of related experience depending on degree. Requires software testing, verification and validation, medical device standards, technical writing, and cross-functional collaboration.
.NET Core, Java, Python, GoLang, Rust, Databricks, Scala, Azure DevOps, Jira, Jama, Codebeamer, Helix ALM, TestRail, BLE, Agile, Lean
2w
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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
1mo
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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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