337 csharp jobs at 143 companies in Fontana, CA

3mo
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Systems Analyst Sr
Los Angeles, California, United States
$87k-$145k/yr OnsiteFull Time
JM Eagle
JM Eagle: Manufacturer of plastic and PVC pipes for global infrastructure.
3+ YOEBachelor's in Computer Science or Information Systems; 3+ years in programming/analysis; ASP.NET (C#/VB), AS400 iSeries, Java; ERP applications experience.
ASP.NET, C#, VB, AS400, SQL, Java
1w
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Senior EDI Analyst
Santa Ana, California, United States
$33-$43/hr OnsiteFull Time
Worldwide Golf Shops
Worldwide Golf Shops: Retailer specializing in golf equipment, apparel, and accessories.
Expertise in EDI standards and protocols, EDI mapping and integration, SPS Commerce experience, system administration basics, compliance knowledge; associate or bachelor preferred.
ANSI X12, EDIFACT, AS2, FTP, SFTP, VAN, VPN, SPS Commerce, SAP, SQL, Java, C#, Python
2mo
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Architect, Platform
Irvine, California, United States
$150k-$194k/yr OnsiteFull Time
PDS Health
PDS Health: Provides business and administrative support services to dental practices.
4+ YOEBachelor’s Degree or equivalent work experience; 4+ years in related industry; senior architect experience; strong EA, SDLC, and OO design knowledge.
Python, C#, Java, SQL, Visual Studio, Mercurial, SSDT, Enterprise Architect
1w
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SharePoint and Power Platform Specialist
Glendale, California, United States
$75k-$110k/yr OnsiteFull Time
Pharos Admin Services
Pharos Admin Services: Provides operational and administrative support services for healthcare organizations.
3+ YOE3+ years SharePoint Online, PowerApps and Power Automate experience; Azure integration knowledge; front-end and scripting skills; strong communication and analytical ability.
SharePoint Online, Microsoft PowerApps, Power Automate, Dataverse, Entra ID, Azure Functions, Logic Apps, Azure SQL, Azure DevOps, SPFx, JavaScript, JSON, TypeScript, HTML, C#, PowerShell, Microsoft 365
3w
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Software Engineer
Minnetonka or Cypress
$73k-$130k/yr OnsiteFull Time
UnitedHealth Group
UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-enabled health care services.
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
1mo
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Sr. Manager, Software Development
Irvine or Toronto or Buffalo
$159k-$270k/yr HybridFull Time
Ingram Micro
Ingram MicroNYSE: INGM: Distributes information technology products and provides supply chain solutions.
12+ YOE7+ MgmtBS/MS/MBA/PhD in CS or related; 12+ years software engineering experience, 7+ years engineering leadership; enterprise SaaS, cloud (GCP/Azure/AWS), Agile, microservices, APIs, AI/LLM experience (Gemini/Claude/Copilot); strong people and cross-functional skills.
C++, C#, Python, PostgreSQL, SQL, No SQL Databases, Front End Web, Web Services, event-driven microservices, Microfrontends, SPAs, Mulesoft, Tibco, Workato, Gemini (Google), Claude (Anthropic), Microsoft Copilot, APIs, SAP, GCP, Azure, AWS, CI/CD pipelines, infrastructure as code
6d
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Software Engineer
Los Angeles, California, United States
OnsiteFull Time
ALKEME Insurance
ALKEME Insurance: Insurance brokerage and risk management services provider.
Bachelor's degree or equivalent; proficiency in Java, Python, C#, or JavaScript; experience with development frameworks, cloud platforms, databases/SQL, and CI/CD; strong problem-solving and communication skills.
Java, Python, C#, JavaScript, AWS, Azure, Google Cloud, SQL, CI/CD
1mo
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3D Layer Product Engineer II
Redlands, California, United States
$80k-$133k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
2+ YOE2+ years software testing experience with C#, Java, or C++; intermediate web technology knowledge (JSON, REST, JavaScript); familiarity with ArcGIS platform; Bachelor's degree in GIS/computer science/engineering; strong analytical and collaboration skills.
C#, Java, C++, JSON, REST, JavaScript, ArcGIS Enterprise, ArcGIS Online, i3s, 3D tiles, Maps SDK, enterprise geodatabase, GitHub
1mo
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Senior Control System Architect
Irvine or Pasadena
$152k-$228k/yr HybridFull Time
Stantec
StantecTSX: STN: Provides professional engineering, architecture, and environmental consulting services.
10+ YOE10+ years technical experience; Bachelor's in CS/EE or related (MS preferred); experience with PLC/SCADA/DCS, control system programming, C++/Python/C#/Java, OT cybersecurity; valid driver's license; PE preferred.
PLC, SCADA, DCS, IIOT, C++, Python, C#, Java, SDLC, firewalls, data encryption programs, virtualized server systems
3w
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Senior Software Engineer - Supply Core (Fullstack)
Aliso Viejo or San Francisco
$200k-$250k/yr HybridFull Time
StubHub
StubHubNYSE: STUB: Online marketplace for buying and selling live event tickets.
5+ YOE5+ years software development experience, 2+ years with React, experience with Java or C#, expertise across backend/frontend systems, mentoring experience, strong communication and product judgment.
React, Java, C#
1mo
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Senior Developer (IBM Sterling B2B Integrator) (REMOTE)
Glenview or Pittsburgh or Los Angeles County
$90k-$121k/yr RemoteFull Time
Wesco
WescoNYSE: WCC: Distributes electrical and industrial products and supply chain solutions.
5+ YOE5+ years development experience in enterprise environments; experience with IBM Sterling B2B Integrator, .NET (C#), Java, JavaScript, SDLC and Agile; strong communication, troubleshooting, and documentation skills.
.NET, C#, Java, JavaScript, IBM Sterling B2B Integrator
3mo
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Open Text
Los Angeles, California, United States
$120k-$150k/yr RemoteContract
Strategic Management Solutions
Strategic Management Solutions: Provides expert management and technical consulting for government projects.
5+ YOEOpenText Content Server expert with web development (HTML/CSS, JavaScript, jQuery, Bootstrap), C# or similar, and AWS/cloud experience; strong metadata and permissions knowledge.
OpenText Content Server, JavaScript, jQuery, Bootstrap, C#, AWS
2w
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SOFTWARE ENGINEER III
Pomona, California, United States
$115k-$155k/yr OnsiteFull Time
Pomona Valley Hospital Medical Center
Pomona Valley Hospital Medical Center: Operates an acute care hospital and regional trauma center.
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
3w
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Technology and Innovation - OneStream Manager
Atlanta or Dallas or San Jose or Miami or New York or Houston or Denver or Orange County or Chicago or Detroit or Washington
$116k-$160k/yr HybridFull Time
Riveron
Riveron: Provides business advisory and financial consulting services to companies.
5+ YOEBachelor's in Accounting/Finance/MIS, 5+ years implementing/optimizing OneStream or other CPMs, OneStream certification required, experience with vb.net/Visual Basic or C#, Microsoft Office, data modeling, and leadership of implementation teams.
OneStream, vb.net, Visual Basic, C#, Microsoft Office, Hyperion, Oracle, Adaptive
2mo
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CRM Developer
Long Beach, California, United States
$106k-$154k/yr OnsiteFull Time
SCAN Health Plan
SCAN Health Plan: Providing Medicare Advantage plans and integrated healthcare for seniors.
5+ YOEDesign, develop, configure, and support Microsoft Dynamics 365 CRM; integrate with enterprise apps; implement AI/ML capabilities; ensure HIPAA compliance.
Microsoft Dynamics 365, C#, .NET, Power Platform, Azure, REST, SOAP, Azure Functions, Logic Apps, Service Bus, API Management, Power Apps, Power Automate, Power Pages, JavaScript, Plugins
2mo
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Full Stack Software Engineer
Los Angeles or Houston
$100k-$140k/yr HybridFull Time
GMV
GMV: Engineering and technology solutions for space, defense, and cybersecurity.
5+ YOE5+ years C#/.NET, SQL, testing, caching, React; strong communication; ability to lead when needed.
C#, DOTNET, SQL, React, Docker, Redis, RabbitMQ, Kafka, CI/CD, Cursor, Copilot
1w
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Associate, Software Engineer (39132)
Yorba Linda, California, United States
$76k-$141k/yr OnsiteFull Time
L3Harris Technologies
L3Harris TechnologiesNYSE: LHX: Aerospace and defense providing mission-critical technology solutions.
Pursuing or recently completed bachelor's in relevant field; experience with C/C++/Java and embedded/real-time systems; SDLC participation, testing, and integration skills.
C++, C#, C, Java, Ruby, JEE, HTML5, XML, SQL, Perl, Python, Ajax, Qt, Windows, Unix, Linux, VxWorks, QNX, Integrity, Windows CE, .NET, SOA, RTOS, Hadoop, Android
1mo
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Grid SCADA Historian Specialist (Santa Ana, CA, US, 92705)
Santa Ana, California, United States
HybridFull Time
Edison International
Edison InternationalNYSE: EIX: Generating and distributing electricity to customers in Southern California.
3+ YOE3+ years designing, building, implementing, maintaining, or supporting complex utility/real-time systems; experience with PI Historian, PI analytics, scripting, SCADA, and SQL; ability to translate business needs into operational designs.
PI Historian, GridMS PI Historian, AVEVEI PI Systems, shell scripts, .NET, C#, SQL, SCADA
1mo
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LoopNet - Lead Software Engineer
Irvine, California, United States
$144k-$222k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Global provider of commercial and residential real estate data.
9+ YOEBachelor's degree required; 9+ years production development experience with C#/.Net; experience with TypeScript front-end frameworks, AWS services, SQL, unit testing, and delivering production products.
C#, .Net, .Net Core, TypeScript, Vue, React, Angular, AWS S3, SQS, Dynamo, ElastiCache, Apache Kafka, Datadog, Claude Code, GitHub Copilot, MS SQL, MySQL, Git
1w
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VP, AI Solutions Architect
New York City or Chicago or Detroit or Los Angeles
$163k-$263k/yr HybridFull Time
Dentsu
DentsuTokyo Stock Exchange: 4324: Providing global advertising, digital marketing, and media communications services.
12+ YOE12+ years in solution/enterprise architecture or technical consulting with 3+ years delivering production generative AI/LLM systems, hands-on agentic system experience, cloud-native architecture skills, programming proficiency, and strong client-facing leadership.
LangGraph, Microsoft Agent Framework, OpenAI Agents SDK, Claude Agent SDK, CrewAI, LangSmith, Arize, Braintrust, Salesforce, Adobe, Microsoft, AWS, Google Cloud, Databricks, Snowflake, Python, Java, C#, TypeScript, JavaScript, Microsoft Foundry, AWS Bedrock, AgentCore, Google Gemini Enterprise, Vertex AI, Adobe Experience Cloud, AEM, AEP, GenStudio, AEP Agent Orchestrator, Salesforce Agentforce, Data Cloud, Braze, Shopify, Marketplacer, PyTorch