Senior Full-Stack .NET Developer (C#, Angular & SQL Server)

Compensation & LocationLocation: Torrance, CAPay Range: $52.00 – $59.00 per hour (based on experience and internal equity)Schedule: Full-time, contract; long-term opportunityWork Type: HybridBenefits: Health, Vision, Dental, Life Insurance, 401k, Continuing and on-demand education📍 Must be willing to work onsite in Torrance, CA✅ Sponsorship is AVAILABLE for this role‼️ ONLY W2 – NO CORP to CORP – NO 3rd PartiesPosition SummaryWe are seeking a Senior Full-Stack .NET Developer to design, develop, enhance, and support enterprise web applications, APIs, and database solutions. This role requires strong hands-on expertise across ASP.NET, C#, Angular, SQL Server, RESTful services, and DevOps-driven deployment processes.The ideal candidate is a senior developer who can independently deliver full-stack solutions, lead technical design discussions, optimize complex SQL workloads, and support applications throughout the full software development lifecycle. This person must be comfortable working directly with business stakeholders, project managers, QA teams, and UI/UX designers while managing multiple priorities and production support responsibilities.Key Responsibilities• Develop, enhance, and maintain enterprise web applications, APIs, and supporting database solutions• Participate throughout the full SDLC, including requirements analysis, estimation, solution design, development, testing, deployment, and production support• Develop responsive, accessible web interfaces using HTML5, CSS3, JavaScript, AngularJS, and Angular• Design and develop back-end applications and RESTful services using C#, ASP.NET, .NET Framework, and .NET Core• Build secure authentication, authorization, logging, error-handling, and API integration capabilities• Design and maintain SQL Server databases, data models, stored procedures, views, functions, triggers, and related database objects• Perform advanced SQL performance tuning, query optimization, indexing, and execution-plan analysis• Develop and maintain CI/CD pipelines, automated builds, testing processes, and application deployments• Use Git-based source control, branching strategies, and code-review practices• Integrate enterprise applications with third-party APIs, content management platforms, e-commerce solutions, and data synchronization services• Conduct code reviews and enforce software development, security, and documentation standards• Troubleshoot production issues, perform root cause analysis, and implement permanent corrective solutions• Create technical documentation, user documentation, architecture materials, and operational procedures• Collaborate with business users, Project Managers, QA teams, developers, and UI/UX designers• Manage multiple projects, deadlines, and production responsibilities while providing regular progress updatesWhat You’ll Be Working On• Enterprise web and database applications• Full-stack .NET application development• RESTful APIs and enterprise system integrations• Angular-based web interfaces• SQL Server database design and performance optimization• DevOps automation and CI/CD pipelines• Content management and e-commerce integrations• Application modernization, production support, and performance improvementsRequired Skills & Experience• 5+ years of full-stack web application development experience• Strong hands-on experience with ASP.NET, C#, SQL Server, and enterprise web applications• Experience with .NET Framework and .NET Core application development• Strong front-end development experience using HTML5, CSS3, JavaScript, AngularJS, or Angular• Advanced SQL Server and T-SQL development experience• Strong experience developing stored procedures, views, functions, triggers, and complex queries• Experience with database design, data modeling, query optimization, indexing, and execution-plan analysis• Experience developing and integrating RESTful APIs and web services• Strong knowledge of secure coding practices, authentication, authorization, and OWASP standards• Hands-on experience with Git, branching strategies, CI/CD pipelines, and automated deployment processes• Experience using Azure DevOps, GitHub Actions, Jenkins, or comparable DevOps tools• Experience supporting applications through requirements, design, development, testing, deployment, and production support• Strong analytical, troubleshooting, communication, and collaboration skills• Ability to independently manage multiple projects and competing deadlinesDesired Skills• Experience developing large-scale enterprise web and database applications• Experience with Node.js, Java, or VB.NET• AWS cloud experience• Experience with content management systems• Experience supporting e-commerce and third-party application integrations• Experience with application monitoring and centralized logging solutions• Adobe Photoshop experience• Strong project planning, task estimation, and technical leadership capabilities• Experience leading technical design discussions and mentoring other developers• Stable work history within large enterprise organizations