Lake Elsinore • 50 milesRemote · Hybrid · Onsite · Field · All Environments
Lake Elsinore • 50 milesRemote · Hybrid · Onsite · Field · All Environments
Lake Elsinore • 50 milesRemote · Hybrid · Onsite · Field · All Environments
Lake Elsinore • 50 milesRemote · Hybrid · Onsite · Field · All Environments
213 csharp jobs at 93 companies in Lake Elsinore, CA
1mo
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Technology Engineering-Software and Controls
Yucaipa, California, United States
$69k-$114k/yr OnsiteFull Time
2+ YOEBachelor's in engineering required, minimum 2 years manufacturing experience preferred. Proficiency with PLCs/HMIs, Beckhoff and IEC-61131-3, C#/C++/Python, CAD/CAM and CNC programming, EPLAN preferred, IPv4 networking, shop-floor debugging.
PLC, HMI, Beckhoff, IEC-61131-3 structured text, Automation Direct, Schneider, Siemens, Raspberry Pi, C#, C++, Python, EPLAN, CNC Programming, CAD CAM, Multimeter, IPV4
1mo
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Senior Software Engineer, Manufacturing Test
Atlanta or Costa Mesa
$165k-$218k/yr OnsiteFull Time
BS/MS in CS/CE/EE (or equivalent), expertise in Python, low-level device code, CI/CD/DevOps, git, automated testing, ability to travel 25-50%, and must be a U.S. Person eligible for export-controlled access.
Python, WPF, C#, git, RESTful services, AWS, Azure, DB2, SQL Server, NoSql, CI/CD, DevOps, Lattice OS, USB, SPI, I2C, CAN, RS232, RS485, Ethernet, Windows, Linux
1mo
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Staff Software Engineer, Full-Stack
Santa Ana or California or New Jersey or Texas or Florida or Shanghai or Japan or Hong Kong or Canada or Mexico or Germany or France or United States
$166k-$269k/yr HybridFull Time
7+ YOE7+ years building web apps, APIs, and distributed systems; 3+ years AWS; proficiency in Python, C#, or Java; experience with React/Next.js; use of AI tools (Claude Cowork, Codex); staff-level technical leadership.
AWS, Claude Cowork, Codex, Python, C#, Java, React, Next.js, e-Verify
4w
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SOFTWARE ENGINEER III
Pomona, California, United States
$115k-$155k/yr OnsiteFull Time
4+ YOEHigh school diploma or equivalent, 4+ years IT experience; strong Microsoft Office skills; HL7 interface knowledge; development and scripting experience; server administration experience.
Microsoft Office Applications, HL7, COBOL, Visual Basic, Java, C, C++, C#, T-SQL, Oracle SQL, PL/SQL, Java-script, JSP, PHP, ASP, VBScript, Perl, Python, *nix shell scripting, WScript, IIS, Apache, SQL Server, Oracle 10g, MySQL, Websphere 6.x, Apache Tomcat, MOSS, BizTalk, Microsoft Exchange
1mo
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Front End Developer Tableau/Python
Norco, California, United States
$70k-$143k/yr OnsiteFull Time
5+ YOEActive Secret clearance and U.S. citizenship required. Bachelor’s in CS/Engineering, 5+ years software development, proficiency with Python, SQL/relational DBs, Tableau, front-end frameworks, cloud platforms, Git, and Agile.
Tableau, Python, SQL, Java, C#, JavaScript, Oracle, PostgreSQL, MySQL, React, Angular, Vue.js, Node.js, .NET, AWS, Azure, Google Cloud, Git, CI/CD
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Software Engineer
Minnetonka or Cypress
$73k-$130k/yr OnsiteFull Time
3+ YOEBachelor's degree or equivalent; 3+ years software engineering experience with microservices, REST APIs, React, containerization (Docker/Kubernetes), cloud (Azure preferred or AWS), IaC (Terraform), CI/CD (Jenkins/GitHub Actions); familiarity with AI/ML, LLMs, OpenAI, and cloud monitoring.
AWS, Terraform, CloudWatch, TensorFlow, PyTorch, Azure Monitor, Splunk, Grafana, React JS, OpenAI, GitHub Copilot, Jenkins, GitHub Actions, Microsoft .NET Core, C#, Python, JavaScript, Docker, Kubernetes, Microsoft Azure
2mo
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Engineer II, Cloud & Web Systems Software
Irvine, California, United States
$100k-$120k/yr OnsiteFull Time
2+ YOEBachelor’s degree in CS/Software Engineering or related field; 2-5 years in cloud/web/backend or distributed systems; strong programming with C#, .NET, Java, Python, JavaScript/TypeScript; cloud platforms (AWS/Azure/GCP); APIs, microservices, databases; CI/CD; Agile; good communication.
C#, NET, Java, Python, JavaScript, TypeScript, React, Angular, Node.js, AWS, Azure, Google Cloud Platform, SQL Server, PostgreSQL, MongoDB, CI/CD, Docker, Kubernetes
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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
2w
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Machine Learning Engineer II
Diamond Bar, California, United States
$100k-$146k/yr OnsiteFull Time
5+ YOEBachelor's in a quantitative field required (Master/PhD preferred); strong Python and ML framework experience (PyTorch/TensorFlow); production MLOps, cloud, and industrial data experience; preferred 5+ years in ML/industrial AI.
Azure Machine Learning Studio, Azure Machine Learning, XGBoost, Random Forests, LSTMs, Autoencoders, Isolation Forests, One-Class SVMs, Dynamic Time Warping, PCA, MLflow, Kubeflow, Docker, Kubernetes, PySpark, Databricks, Python, C++, C#, JavaScript, R, PyTorch, TensorFlow, Scikit-Learn, NumPy, Pandas, SciPy, SQL, NoSQL, InfluxDB, TimescaleDB, Google Cloud Platform, AWS, GCP, LangChain, LlamaIndex, Microsoft Semantic Kernel, AutoGen, CrewAI, Azure AI Foundry, OpenAI API, Hive, Pig, MATLAB, Weka, Matplotlib
1d
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Software Programmer III
Orange, California, United States
$105k-$110k/yr OnsiteFull Time
6+ YOE6+ years full-stack .NET development experience with C#, ASP.NET Core/.NET Framework, Angular, SQL Server, T-SQL, Web APIs and AI-assisted coding tools; strong problem-solving and collaboration skills.
.NET, .NET Framework, ASP.NET Core, C#, Angular 15+, SQL Server, T-SQL, Web APIs, GitHub Copilot, ChatGPT, Claude, CI/CD, JIRA, GitHub, GitLab, TFS, Azure DevOps
2d
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Specialist, Software Engineering- Real-time Embedded & Client/Server (42109)
Yorba Linda, California, United States
$97k-$180k/yr OnsiteFull Time
4+ YOEActive U.S. Secret clearance, bachelor’s degree or equivalent experience, 3+ years SDLC and embedded/real-time development, proficiency in C/C++/C#/Java/Python, requirements management experience.
DOORS, Rational Publishing Engine (RPE), Qt Enterprise, Linux (RHEL), Windows, Visual Studio, .NET, Real Time Operating Systems, Oracle RDMS, SQL Server, SQL Lite, Java, JRE, JDK, JavaFX, Tomcat, UML, C, C++, C#, Python
2w
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Software Developer II - Indoor GIS AI and Reality
Redlands, California, United States
$101k-$167k/yr OnsiteFull Time
2+ YOE2+ years professional software development; proficiency in Python and working knowledge of C++ or .NET/C#; experience with AI/ML integration, computer vision or 3D graphics, APIs, and strong problem-solving skills; Bachelor’s in CS or related STEM.
C++, .NET/C#, Python, LLMs, Gaussian Splatting, OpenCV, ONNX, ArcGIS, CAD, BIM, Revit, LiDAR, WebGL, OpenGL, DirectX, GitHub Copilot, Copilot Chat, Claude, ChatGPT, Gemini, Llama
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Senior SDET — Automation Quality & Test Engineering
Irvine or United States
$125k/yr RemoteFull Time
6+ YOE6+ years software engineering (4+ in test automation); strong coding in TypeScript, JavaScript, Python, Java, or C#; experience building API/UI test frameworks, CI/CD integration, testing multi-system integrations, and daily use of AI coding tools.
TypeScript, JavaScript, Python, Java, C#, Postman, REST-assured, pytest, supertest, Playwright, Cypress, GitHub Actions, GitLab CI, Jenkins, Azure DevOps, Blue Sage, Encompass, Kwikie, Gateless, Cotality, AUS, DU, LP, Claude Code, GitHub Copilot, Cursor
2mo
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1620 Supply Chain Technology and Innovation - Senior Software Developer - Automation
Temecula, California, United States
HybridFull Time
5+ YOESenior software developer with Go, full-stack skills, automation/integration experience, CI/CD, Agile; SAP EWM/WMS knowledge; Bachelor’s degree or equivalent experience.
Go, SQL, Python, C#, Java, Linux, Windows, Docker, Kubernetes, AWS, Azure, GCP, REST, MQTT, Modbus, CIP, SAP EWM, EWM/WMS
3mo
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Senior Full Stack Cloud Developer (.Net / Azure)
Irvine, California, United States
$155k-$172k/yr HybridFull Time
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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Software Quality Assurance Engineer (Onsite)
Carlsbad, California, United States
$75k-$85k/hr HybridFull Time
3+ YOE3+ years QA experience, BS/MS in Computer Science or Engineering required, test plan and automation experience, JIRA/TestRail and Microsoft Office proficiency, Python preferred, Unity/C# preferred, ability to perform repetitive physical simulator testing, willingness to travel up to 25%.
JIRA, TestRail, Microsoft Office, Python, Unity, C#
3mo
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Software Engineer (Range Systems)
Corona, California, United States
$115k-$150k/yr HybridFull Time
7+ YOE7+ years in systems/software engineering; experience with hardware/software integration; proficiency in C++, Java, Python, or C#; DoD or defense program exposure is a plus.
C++, Java, Python, C#, TCP/IP
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Specialist, Service Development
Anaheim, California, United States
$65k-$82k/yr OnsiteFull Time
Develop and document vehicle diagnostic system requirements, write/debug software, produce technical service information, and support diagnostic program deployment.
C++, C#, Python, Java, JavaScript, embedded C, Microsoft Office, CAN, OBD-II
3mo
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Engineering Manager - Accounts Payable (ERP Integrations)
Irvine, California, United States
OnsiteFull Time
7+ YOE3+ Mgmt7+ years software engineering experience with 3+ years managing teams; hands-on C#/.NET and Blazor; deep Accounts Payable and ERP integration experience; strong architecture, APIs, and stakeholder skills.
C#, .NET, Blazor, Acumatica, SAP, Sage, NetSuite, Microsoft Dynamics, Odoo, Azure, QuickBooks, Magento, WooCommerce, Epicor
2w
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Senior Actuary - Life and Annuity Pricing Modeler
Newport Beach or Omaha or Charlotte
$145k-$205k/yr HybridFull Time
6+ YOEBachelor's degree,6+ years actuarial modeling and coding experience,proficiency in C# or Python,strong analytical and communication skills; FSA designation preferred.
C#, Python, Azure DevOps, JIRA, Git, CI/CD, Prophet, ALFA, MoSes, GGY
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