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48 sr net developer jobs at 32 companies in El Cajon, 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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3w
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Full-Stack .NET/Mobile Developer
San Diego, California, United States
$90k-$130k/yr OnsiteFull Time
Applications International Corporation
Applications International Corporation: Delivers cloud-based environmental health, safety, and ESG compliance software.
5+ YOE5+ years full-stack .NET experience, 3+ years mobile (.NET MAUI/Xamarin), ASP.NET/C# backend, REST API and SSO experience, Azure and CI/CD familiarity, bachelor’s degree or equivalent preferred.
.NET MAUI, Xamarin, ASP.Net, MVC, C#, VB.Net, SSIS, Azure, Visual Studio, Git, Azure DevOps, GitHub Actions, SQL Server, OAuth 2.0, OpenID Connect, SAML
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1w
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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. 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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Lead Full Stack Engineer (.Net, Vue/React) - Fully Remote
Guadalajara or Tijuana
RemoteFull Time
CoverGo
CoverGo: No-code insurance platform for life, health, and P&C insurers.
8+ YOE2+ Mgmt8+ years full stack experience with .NET Core/C#, GraphQL, MongoDB, Docker; 2+ years leading teams; front-end with JavaScript and Vue.js or React.js; cloud and microservices experience; TDD and DDD familiarity.
.NET Core, C#, GraphQL, MongoDB, Docker, JavaScript, Vue.js, React.js, AWS, Azure, Google Cloud
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3w
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Senior Software Engineer
San Diego, California, United States
$124k-$187k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Provides global real estate information, analytics, and online marketplaces.
Bachelor's degree required. Strong C#/.NET experience, hands-on AWS, experience using Claude for AI-assisted development, API and backend development skills, software design and mentorship experience.
C#, .NET, .NET Core, Claude, AWS, EC2, ECS, EKS, Lambda, S3, RDS, DynamoDB, CloudWatch, Databricks, Terraform, CloudFormation, CDK, Git
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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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3w
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Principal Software Engineer
San Diego, California, United States
$190k-$210k/yr OnsiteFull Time
Mainstay Medical
Mainstay Medical: Restorative neurostimulation therapy for mechanical chronic low back pain.
15+ YOE15+ years software engineering experience with 8+ years in regulated medical devices, familiarity with IEC 62304 and FDA PMA processes, proficiency in .NET/C#/Blazor/.NET MAUI, Azure, embedded firmware, and strong cybersecurity and leadership skills.
.NET, C#, Blazor, .NET MAUI, EF Core, SQLite, Azure DevOps, Git, Figma, Claude Code, Azure, Bluetooth, gRPC
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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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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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3mo
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Full Stack Engineer, Senior
Oakland or Seattle or WA or OH or CA or Long Beach or AZ or CO or CT or FL or GA or MD or MN or NV or OR or El Dorado Hills or Lodi or Rancho Cordova or Redding or San Diego or Woodland Hills or AL or IL or VA or WI or TX or NY
$103k-$174k/yr HybridFull Time
Ascendiun
Ascendiun: Nonprofit parent overseeing health insurance and clinical service organizations.
5+ YOE5+ years full stack development; BA/BS or equivalent IT experience; React/Vue/Angular; .NET/Java/Node.js/Python APIs; SQL/NoSQL; Azure preferred; Docker; IaC; CI/CD; AI tools; healthcare experience preferred.
React, Vue, Angular, JavaScript, TypeScript, .NET, Java, Node.js, Python, MS SQL Server, Oracle, NoSQL, REST, Azure, AWS, GCP, Docker, Kubernetes, Ansible, Bicep, ARM, Terraform, GitHub, GitLab, Bitbucket, Git
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2mo
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Sr. Principal Electronics Engineer – Data Center Architect
San Diego, California, United States
$142k-$213k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
4+ YOEU.S. citizen with active Top Secret/SCI or Top Secret eligibility; STEM degree with 4–8+ years engineering experience; experience with datacenter IaaS, VMware ESXi/VCF, Red Hat OpenShift, scripting (Python, PowerShell, Visual Basic, .Net, Java, C, C#), storage design, and infrastructure automation (Ansible, Puppet, Terraform).
VMware ESXi/VCF, Red Hat OpenShift, Python, PowerShell, Visual Basic, .Net, Java, C, C#, Ansible, Puppet, Terraform
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3w
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Senior Software Engineer
San Diego, California, United States
$124k-$187k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Global provider of commercial and residential real estate data.
Bachelor's degree required; strong C#/.NET and AWS experience; hands-on use of Claude preferred; experience building cloud-native, scalable backend services; Git and CI/CD familiarity.
C#, .NET, .NET Core, Claude, AWS, EC2, ECS, EKS, Lambda, S3, RDS, DynamoDB, CloudWatch, Git, Databricks, Terraform, CloudFormation, CDK
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1w
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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
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1mo
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Senior Salesforce Developer
Jacksonville or Dallas or Cincinnati or Los Angeles or Sacramento or Richmond or Minneapolis or Boston or Kansas City or Chicago or Tampa or Washington or San Antonio or Houston or Colorado Springs or Nashville or San Diego or Pittsburgh or Tacoma or New York or Phoenix or Miami or Fayetteville
HybridFull Time
Wounded Warrior Project
Wounded Warrior Project: Provides support services and mental health programs for veterans.
7+ YOE7+ years designing and implementing Salesforce solutions; 5+ years with Apex, LWC, Visualforce and integrations; Salesforce Platform Developer II required; Bachelor’s in CS/IS/software engineering or equivalent.
Salesforce CRM (Sales and Service Cloud), Force.com, Visualforce, Apex, Lightning Web Components, Cascading Style Sheets (CSS), HTML, Java, .NET, Data Loader, AppExchange, React, React Native, SQL
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2w
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Staff Software Cloud Developer
San Diego, California, United States
$135k-$202k/yr OnsiteFull Time
Qualcomm
QualcommNASDAQ: QCOM: Designs and manufactures semiconductors and wireless telecommunications products.
.NET 4.0,C#,WPF,ASP .Net MVC3,XML,SQL 2008/2012,AWS,Linux and Windows cloud infrastructure experience;mentoring experience;Bachelor's in EE/CE/CS or related.
.NET 4.0, C#, WPF, ASP .Net MVC3, XML, SQL 2008/2012, Linux, Windows, AWS
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1mo
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Database Developer
Oceanside, California, United States
$130k-$150k/yr OnsiteFull Time
MagnaFlow
MagnaFlow: Designs and manufactures automotive performance exhaust and suspension systems.
5+ YOEBachelor's or equivalent experience, 5+ years database development/data engineering, advanced Microsoft SQL Server and Azure SQL skills, ETL/ELT (SSIS/Azure Data Factory/Databricks), data warehouse design, Python/PowerShell/.NET, Power BI/SSRS/Tableau.
Microsoft SQL Server, Azure SQL, SSIS, Azure Data Factory, Databricks, Oracle, MySQL, NoSQL, Python, PowerShell, .NET, SSRS, Power BI, Tableau
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2mo
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Sr. Software Manager
Carlsbad, California, United States
$130k-$150k/yr HybridFull Time
Upper Deck
Upper Deck: Upper Deck manufactures trading cards and licensed sports collectibles.
10+ YOE5+ MgmtLead development team; design .NET/C# apps; manage SQL Server; mentor staff; align technology with business goals.
Blazor, ABP.io Framework, Azure App Services, OpenID Connect, Microsoft .NET, C#, SQL Server
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11h
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Senior Software Engineer
San Diego, California, United States
$160k-$220k/yr OnsiteFull Time
Rivo Holdings
Rivo Holdings: Provides operational support and technology for the lending industry.
8+ YOERequires 8+ years of software development, 5+ years designing enterprise applications, and experience with modernization, high-availability systems, microservices, distributed systems, and event-driven design.
.NET, C#, Microsoft SQL Server, React, Angular, TypeScript, REST APIs, Azure Cloud Services, AI-Assisted Development, Entity Framework, Application Monitoring and Observability, Agile Development Methodologies, CI/CD Pipelines
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