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
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
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
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
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
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
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
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
1mo
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Software Developer II
Brea, California, United States
$31-$35/hr RemoteFull Time
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
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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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
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
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
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
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
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
2mo
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Senior Software Engineer (Card Present)
Irvine, California, United States
OnsiteFull Time
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
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
1mo
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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
2w
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Specialist, Software Engineering (Controls Engineer) (40556)
Anaheim, California, United States
$106k-$180k/yr OnsiteFull Time
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
1mo
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Software Engineer, Manufacturing Test
Atlanta or Costa Mesa
$143k-$191k/yr OnsiteFull Time
BS/MS in CS/CE/EE or equivalent, expertise in Python, low-level device code and drivers, CI/CD and DevOps automation, git, automated testing, experience with embedded/industrial/multi-disciplinary projects, travel 25-50%, must be a U.S. Person and eligible for Secret clearance.
Python, Windows, Linux, CI/CD, DevOps, git, WPF, C#, AWS, Azure, DB2, SQL Server, NoSQL, RESTful services, Lattice OS, USB, SPI, I2C, CAN, RS232, RS485, Ethernet
2mo
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Sr Staff Engineer Backend
Los Angeles or Santa Clara or Tustin or Dallas
$99k-$185k/yr OnsiteFull Time
7+ YOE7+ years backend, distributed systems, microservices; technical leadership; collaboration across product, data, and compliance; AI-assisted development familiarity.
Java, Kotlin, Scala, Go, C#, TypeScript, REST, gRPC, OAuth2, JWT, AWS, CI/CD, AI tools, Copilot
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