206 csharp jobs at 99 companies in San Clemente, CA

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
Collectors
Collectors: Providing authentication and grading services for high-value collectibles.
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
3mo
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Software Engineer - Product Test Frameworks - .NET/TestStand
United States or India or Carlsbad or Tempe or Duluth or Hyderabad or Remote - Georgia or Remote - California or Remote - Arizona or Carlsbad or Tempe
$141k-$222k/yr RemoteFull Time
Viasat
ViasatNASDAQ: VSAT: Provider of global satellite-based connectivity and secure communication solutions.
5+ YOEBS in Electrical Engineering or CS, 5+ yrs systems/test, TS/C#/Python, test automation, APIs, travel up to 10%.
TestStand, C#, Python, LabVIEW
1w
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Senior Software Engineer
Brea, California, United States
$130k-$147k/yr HybridFull Time
RAVE Aerospace
RAVE Aerospace: Developing in-flight entertainment and connectivity systems for airlines.
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
4d
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Senior Software Engineer
Carlsbad, California, United States
$130k-$180k/yr OnsiteFull Time
Nordson
NordsonNasdaq: NDSN: Manufactures precision dispensing and fluid management equipment for industry.
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
3mo
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Wireless Systems Validation Engineer
Irvine or San Diego or Sunnyvale
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
Bachelor’s degree; strong wireless knowledge (WiFi; cellular a plus); programming in Python, Shell, C++, or C#.
Python, Shell, C++, C#, RF test equipment, signal generators, spectrum analyzers, emissions testing tools
2mo
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LoopNet - Vice President, Software Engineering
Irvine, California, United States
$250k-$440k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Global provider of commercial and residential real estate data.
10+ YOEBachelor's degree required; 10+ years leading large engineering teams; experience with cloud-based, high-availability full-stack systems; hands-on knowledge of JavaScript/TypeScript, Angular, and C#; strong stakeholder management and team-building skills.
JavaScript, TypeScript, Angular, C#
2mo
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Sr. Application Security Engineer
Redlands, California, United States
$94k-$158k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
5+ YOE5+ years in application security; experience with code reviews, pen testing, and vulnerability remediation; automation in Python/Typescript/Java/PowerShell; GitHub Actions; Kubernetes security; AWS/Azure; US security clearance potential; Bachelor’s in CS or related field.
Python, Typescript, Java, PowerShell, GitHub Actions, Kubernetes, AWS, Azure, OAuth, OIDC, REST, SQL, C#, Bash/Shell, JavaScript
4w
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Embedded Software Engineer II
Melbourne or Dallas or Austin or Cypress
OnsiteFull Time
Leonardo DRS
Leonardo DRSNASDAQ: DRS: Manufactures advanced electronic systems for defense and military applications.
2+ YOEBachelor's in engineering or CS (or equivalent), 2+ years embedded software experience, strong C/C++/Python skills, experience with bare-metal/FreeRTOS/Embedded Linux, device drivers (UART/I2C/SPI), GitLab/JIRA/Confluence, U.S. citizenship and active or obtainable DOD security clearance.
C, C++, Python, Bare-Metal Systems, FreeRTOS, Embedded Linux, UART, I2C, SPI, GPIO, AMD/Xilinx Zynq UltraScale+ MPSoC, MicroBlaze, GitLab, JIRA, Confluence, C#, Microsoft .NET, AMD Vitis IDE, oscilloscopes, logic analyzers, protocol analyzers, EO/IR cameras
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Software Developer II
Brea, California, United States
$31-$35/hr RemoteFull Time
HdL Companies
HdL Companies: Provide revenue management and software solutions for local governments.
5+ YOEBachelors in Computer Science or related, 5+ years developing and testing code, experience with .Net C#, Visual Basic, RDBMS/SQL, MVC, AngularJS, Crystal Reports, GIS, APIs, Microsoft Internet Information Server, and debugging tools.
.Net, C#, Visual Basic, RDBMS/SQL, MVC, AngularJS, Crystal Reports, GIS, APIs, Microsoft Internet Information Server, source debuggers, visual development environments
5d
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Software Engineer
Carlsbad, California, United States
$95k-$126k/yr OnsiteFull Time
HM Electronics
HM Electronics: Provides specialized communication and timing solutions for various industries
0+ YOEBA/BS required; 0–3 years web/server-side experience; strong Python,C#,C/C++,Node.js,.NET skills; Linux and cloud (Azure preferred) experience; strong analytical and communication skills.
Node.js, Python, C#, .NET, C++, Linux, AWS, Azure
1mo
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Full Stack Engineer, Senior (Azure)
Oakland or California or Long Beach or El Dorado Hills or Huntington Park or Lodi or Rancho Cordova
$116k-$174k/yr HybridFull Time
Ascendiun
Ascendiun: Nonprofit parent overseeing health insurance and clinical service organizations.
4+ YOE4+ years enterprise app/cloud experience, 4-7 years software development with API focus, 3+ years Microsoft Azure (API Management, Functions/App Services, Azure AD) experience, REST/OpenAPI/MuleSoft, C#/.NET/Java/Python, CI/CD and IaC (Ansible), Docker; healthcare domain preferred.
Microsoft Windows, Linux Server, Remote Desktop Services, Microsoft Azure, Microsoft Azure API Management, Microsoft Azure Functions, Microsoft Azure App Services, Microsoft Azure AD, REST, HTTP, JSON, OpenAPI (Swagger), MuleSoft, C#/.NET, Java, Python, Service Bus, Event Grid, Bitbucket Pipelines, GitHub Actions, Ansible, Docker, AWS, GCP, Citrix
1mo
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Sr. Software Developer
Orange or Arizona or California or Florida or Maryland or Maine or Michigan or Missouri or North Carolina or Nevada or New York or Ohio or Oklahoma or Oregon or South Carolina or Texas or Utah or Washington or Wyoming
$120k-$145k/yr RemoteFull Time
Aeries Software
Aeries Software: Provides student information management software for K-12 school districts.
7+ YOE7+ years professional software development with Microsoft .NET stack, experience with React/TypeScript, RESTful API design, Playwright, cloud deployments (AWS preferred), practical use of Claude or similar LLM agent tools, and demonstrated technical leadership.
ASP.NET WebForms, React, TypeScript, C#, .NET Web API, RESTful API, Claude, Redux Toolkit, Zustand, Playwright, CI/CD, Azure DevOps, AWS, ECS, Lambda, Step Functions, Bedrock, Azure, GCP
2mo
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Software Engineer (C#/.NET)
Carlsbad or New York
$101k-$134k/yr OnsiteFull Time
Rockstar Games
Rockstar Games: Creates and publishes world-class open-world video games.
4+ YOE4+ years building scalable distributed systems; strong C# and/or C++; strong CS fundamentals; API design; SQL databases; source control (Perforce preferred).
C#, C++, SQL, Windows Server, IIS, .NET, MSSQL, Perforce
1mo
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LoopNet - Senior Full Stack Engineer
Irvine or Orange County or United States
$124k-$187k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Provides global real estate information, analytics, and online marketplaces.
7+ YOEBachelor's degree required; 7+ years production C#/.NET development; front-end experience with Vue/React/Angular in TypeScript; experience with AWS (S3, SQS, Dynamo, ElastiCache), Apache Kafka, Datadog, and relational databases; unit-testable development and mentoring experience.
C#, .NET, .NET Core, TypeScript, Vue, React, Angular, AWS S3, SQS, Dynamo, ElastiCache, Apache Kafka, Datadog, Claude Code, GitHub Copilot, MS SQL, MySQL, Git
3mo
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Validation Engineer, Senior/Principal
Newport Beach, California, United States
$84k-$166k/yr OnsiteFull Time
MACOM
MACOMNASDAQ: MTSI: Designs and manufactures semiconductor products for communications infrastructure.
5+ YOEBS with 5+ years or MS with 3+ years in relevant validation disciplines; experience validating devices to specs; ability to reproduce and close complex issues; capability to communicate findings and drive design decisions.
C#, MATLAB, Python, Oscilloscopes, BER testers, Vector Network Analyzer
2mo
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Senior Software Engineer (Card Present)
Irvine, California, United States
OnsiteFull Time
EBizCharge
EBizCharge: Provides integrated payment processing and AR automation software solutions.
Strong C#/.NET backend, EMV/payments, PCI DSS, and RESTful APIs; experience with payment terminals SDKs; EMV Level 3 certification involvement.
C#, \\.NET, EMV, Clover, Stripe Terminal, Square, TLV, ISO 8583, PCI DSS, P2PE
1w
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Senior Actuary - Life and Annuity Pricing Modeler
Newport Beach or Omaha or Charlotte
$145k-$205k/yr HybridFull Time
Pacific Life
Pacific Life: Provides life insurance, annuities, and investment products for financial security.
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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Full Stack Developer
Norco, California, United States
$90k-$190k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
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
1w
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Robotics Engineer II
Long Beach, California, United States
$124k-$186k/yr OnsiteFull Time
Relativity Space
Relativity Space: Designing and manufacturing 3D-printed rockets and launch vehicles.
3+ YOE3+ years robotics control systems experience, BS/MS/PhD or equivalent hands-on experience, familiarity with industrial automation protocols and functional safety, Git proficiency, strong troubleshooting and collaboration skills.
EtherCAT, TwinCAT, TwinSAFE, Kuka, CANbus, Ethernet/IP, PROFINET, FSoE, profiSAFE, Git, C++, C#, Python, Javascript, ROS, Linux, bash
2w
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Specialist, Software Engineering (Controls Engineer) (40556)
Anaheim, California, United States
$106k-$180k/yr OnsiteFull Time
L3Harris Technologies
L3Harris TechnologiesNYSE: LHX: Aerospace and defense providing mission-critical technology solutions.
4+ YOEBS in EE (or equivalent) and 4+ years control systems experience for power conversion; ability to obtain US security clearance; MATLAB/Simulink and C/C++ experience; DSP and communications knowledge.
MATLAB, Simulink, C, C++, Python, C#, RS-232, RS-485, Ethernet