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74 sr net developer jobs at 45 companies in San Clemente, CA

2mo
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Senior .NET Engineer
Carlsbad or United States
HybridFull Time
NTENT
NTENT: Develops semantic search and natural language processing technology platforms.
3+ YOE3+ years experience; .NET Core and C#; multi-threaded programming; REST APIs; scalable architectures; distributed data stores (Aerospike, Elasticsearch, Kafka); testing.
.NET Core, C#, REST API, Aerospike, Elasticsearch, Kafka, Docker, Kubernetes, Git, React, JavaScript, TypeScript, HTML, CSS
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1mo
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LoopNet - Senior Software Engineer (C#/.NET)
Irvine or Orange County
$124k-$187k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Provides global real estate information, analytics, and online marketplaces.
7+ YOEBachelor's degree, 7+ years production .NET/C# experience, AWS and Apache Kafka experience, frontend knowledge (Vue/React/Angular, TypeScript), SQL/NoSQL, Git, unit/performance/integration testing experience.
C#, .NET, .NET Core, AWS, Apache Kafka, Vue, React, Angular, TypeScript, Microsoft SQL, MySQL, NoSQL, Git, GitHub Copilot, Claude Code
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1mo
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LoopNet - Senior Software Engineer (C#/.NET)
Irvine, California, United States
$124k-$187k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Global provider of commercial and residential real estate data.
7+ YOEBachelor's degree required; 7+ years production .NET/C# experience; AWS and Kafka experience; frontend knowledge (Vue/React/Angular, TypeScript); SQL/NoSQL and Git workflows; unit, integration, and performance testing experience.
C#, .NET, .NET Core, AWS, Apache Kafka, Vue, React, Angular, TypeScript, Git, SQL, MS SQL, MySQL, NoSQL, Claude Code, GitHub Copilot
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Sr. Software Engineer
Irvine, California, United States
$112k-$191k/yr RemoteFull Time
Ingram Micro
Ingram MicroNYSE: INGM: Distributes information technology products and provides supply chain solutions.
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
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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
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3w
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Sr Platform Engineer II- Appian
Newport Beach, California, United States
$125k-$153k/yr HybridFull Time
Pacific Life
Pacific Life: Provides life insurance, annuities, and investment products for financial security.
5+ YOEBachelor's degree,5+ years designing and developing BPM/Appian applications,Appian Level 2/3 certification,software development experience (.NET,Java,C#,Visual Basic),HTML/CSS,JavaScript,Appian admin and integrations,MS-SQL,Agile experience.
Appian, .NET, Java, Visual Basic, C#, HTML/CSS, JavaScript, Appian Admin console, Appian Plug-Ins, MS-SQL, Azure pipelines, AWS
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Principal Software Engineer (Medical Device Software/C#, .NET, Windows)
Lake Forest, California, United States
$128k-$166k/yr OnsiteFull Time
Alcon
AlconNYSE: ALC: Manufactures ophthalmic surgical equipment and vision care products.
5+ YOE5+ years developing Windows-based software using C#, .NET and related Microsoft technologies for regulated medical device environments; strong architecture, OOD, multi-threading, networking, and communication skills.
C#, .NET, WPF/XAML, MVVM, C++, Git, HL7, FHIR, DICOM, Protocol Buffers, TCP/IP
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Sr. Sage 300 Developer
Poway, California, United States
$130k-$135k/yr OnsiteFull Time
Chef Works
Chef Works: Designs and sells professional culinary and hospitality uniforms.
7+ YOE7+ years software development with expert Sage 300 ERP, VB6, C#/.NET, Python, and SQL Server; experience with integrations, reporting, and mentoring.
Sage 300 ERP, COM API, Web APIs, Orchid Extender, VB6, C#, .NET Framework, Python, Microsoft SQL Server, T-SQL, Crystal Reports, Sage Intelligence, REST APIs, Swagger/OpenAPI, JSON, XML, Git, CI/CD
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2mo
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Software Engineer (C#/.NET)
New York City or Carlsbad
$101k-$134k/yr OnsiteFull Time
Rockstar Games
Rockstar GamesNASDAQ: TTWO: Developer and publisher of world-class interactive entertainment and games.
4+ YOE4+ years building scalable distributed systems; expert in C# or C++; strong CS fundamentals, API design, web service scalability/security, and database (MSSQL) experience.
Windows Server, SQL Server, IIS, .NET, C#, C++, MSSQL, Perforce, Xbox Live, Sony NP, Games for Windows Live
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3w
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Sr. Web Developer - AEC Integration
Redlands, California, United States
$123k-$202k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
5+ YOE5+ years software product development; experience with cloud infrastructure, backend services, data pipelines; strong skills in TypeScript/JavaScript or C++/.NET/Python; agile and git proficiency; bachelor's degree in CS or related field.
TypeScript, JavaScript, NodeJS, Bootstrap, React, Angular, C++, .NET, Python, git, Amazon AWS, Microsoft Azure, Autodesk Docs, Autodesk Platform Services, Autodesk Forma, ArcGIS Experience Builder, ArcGIS, IFC, 3D Tiles, Esri i3s, ObjectArx, Revit APIs
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3mo
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Senior Full Stack Cloud Developer (.Net / Azure)
Irvine, California, United States
$155k-$172k/yr HybridFull Time
Home Franchise Concepts
Home Franchise Concepts: Provides franchising platforms for home and lifestyle services.
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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3w
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Sr. Software Engineer
La Jolla, California, United States
$116k-$165k/yr OnsiteFull Time
Exact Sciences
Exact SciencesNASDAQ: EXAS: Provides molecular diagnostic tests for early cancer detection.
Bachelor's in CS/DS/IS/Math/Engineering or HS+4yrs experience; strong OOP, RESTful services, relational DBs, cloud (Azure/AWS), multiple languages, agile tools, and ability to work nights/weekends.
RESTful web services, Postgres, SQL Server, JPA2, Hibernate, Entities Framework, Azure, Amazon AWS Services/SDKs, JIRA, Confluence, C++, Java, JavaScript, Python, SQL, PL/SQL, .NET, Google Web Toolkit
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1w
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KAISJP00252884 Full Stack Developer - Sr
Downey, California, United States
HybridContract
Kaiser Permanente
Kaiser Permanente: Integrated healthcare and insurance services provider
5+ YOEBachelor's in CS or related,5+ years full stack experience,proficiency with ASP.NET MVC,.NET Core,C#,JavaScript,EMR not mentioned,SQL Server experience,strong communication and problem-solving.
ASP.NET MVC, .NET Core, C#, JavaScript, jQuery, Bootstrap, ASP.NET Web API, ORM, Microsoft SQL Server, IIS, Git, SVN, Visual Studio, SQL Client Tools, Postman, SoapUI
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1mo
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Senior Software Engineer
Lake Forest or Houston or Philadelphia
$124k-$207k/yr HybridFull Time
AVEVA
AVEVA: Industrial software for engineering and operational performance management.
Strong software development in C# (.NET) or Node.js; hands-on Microsoft Azure cloud experience; CI/CD, DevOps, container experience; knowledge of cloud architecture, networking, and secure development practices.
Microsoft Azure, C#, .NET, Node.js, CI/CD
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1mo
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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
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1mo
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Senior Full Stack Developer
Carlsbad, California, United States
$125k-$150k/yr OnsiteFull Time
Rockstar Games
Rockstar Games: Creates and publishes world-class open-world video games.
7+ YOE7+ years web development experience; strong expertise in C#, .NET, and SQL; experience with React, REST APIs, GitHub, Agile; mentoring and strong communication skills.
C#, .NET, SQL, React, REST APIs, GitHub, Python, Next.js, Kafka, TeamCity, Jenkins, Postman, Bruno, MongoDB, Elastic Stack
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1mo
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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
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1mo
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Senior Software Engineer
Carlsbad, California, United States
$140k-$160k/yr OnsiteFull Time
Alphatec Spine
Alphatec SpineNASDAQ: ATEC: Designs and manufactures surgical implants and instruments for spine surgery.
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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3mo
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Sr. Platform Engineer
Irvine, California, United States
$129k-$161k/yr OnsiteFull Time
Origence
Origence: Provides lending technology and origination solutions for credit unions.
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
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2mo
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Sr. Principal Electronics Engineer – Data Center Architect
San Diego or Rancho Bernardo
$142k-$213k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
8+ YOESenior-level electronics engineer with data center architecture experience; requires security clearance and relocation availability.
VMware ESXi, Red Hat OpenShift, Python, PowerShell, Visual Basic, .Net, Java, C, C#, Ansible, Puppet, Terraform
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