Senior Software Engineer – Microsoft .NET & SQL Server

Compensation & Location

Location: Onsite in Torrance, CA

Schedule: Full-time, long-term contract

Work Type: Hybrid

Pay Range: $70.00 – $77.00 per hour (based on experience & internal equity)

Benefits: Health, Dental, Vision, Life Insurance, 401k, Continuing & On-Demand Education

📍 Must be willing to work onsite in Torrance, CA

✅ Sponsorship is available for this role

‼️ W2 ONLY — No C2C, No 3rd Parties

Position Summary

We are seeking a highly experienced Senior .NET Application Developer to design, build, and support mission-critical applications for large-scale automotive systems. This role requires deep technical expertise across ASP.NET, C#, Blazor, SQL Server, Microservices, and DevOps/CI-CD, with the ability to architect scalable, high-performance solutions in enterprise environments.

The ideal candidate is hands-on, technically sharp, and able to take ownership across the full SDLC — from design and development through testing, deployment, and ongoing support. This is a senior engineering role with a strong emphasis on problem solving, application performance, e-commerce integrations, and mentoring mid-level developers.

Key Responsibilities

• Complete all phases of the software development life cycle (analysis → design → development → testing → deployment → support)
• Develop large-scale web/database applications with advanced e-commerce integration
• Build, test, debug, and optimize new and existing .NET applications
• Design and develop using the Microsoft .NET stack (ASP.NET, C#, Blazor, CLR, SDKs, Libraries, Microservices, Docker, etc.)
• Write complex T-SQL queries, stored procedures, and database objects
• Maintain and support multiple applications, environments, and deadlines
• Follow DevOps practices, CI/CD workflows, and established change control processes
• Serve as a technical SME for system integration, compatibility, and multi-platform architecture
• Work closely with business analysts, PMs, and developers to define solutions and requirements
• Identify, escalate, and communicate risks related to application deployments
• Develop clear technical & architectural documentation
• Mentor and coach junior and mid-level developers
• Provide weekly status updates and work progress documentation

What This Person Will Be Working On

• Designing and developing mission-critical automotive yard management systems
• Supporting multiple automotive sales applications used across the enterprise
• Enhancing large-scale, high-volume applications that support national business operations

Required Skills & Experience

• 10–15 years of progressive software development experience
• Expert-level proficiency with .NET technologies (ASP.NET, C#, Blazor, Microservices, Docker, CLR)
• Strong experience with Microsoft SQL Server (2012+) and advanced T-SQL
• Experience with high-traffic, high-availability enterprise systems
• Strong understanding of e-commerce and web application integrations
• Advanced capability in software design, programming patterns, debugging, and performance tuning
• Experience with DevOps / CI/CD pipelines and change management processes
• Excellent analytical, communication, and problem-solving skills
• Ability to interact with business partners and translate requirements into technical solutions
• Experience mentoring and providing technical leadership
• Strong documentation, system tracing, and performance troubleshooting skills
• Bachelor’s or Master’s degree in Computer Science, Engineering, Math, or related field
• Stable enterprise work history required
• Big 4 consulting experience preferred

Desired Skills

• Recent experience delivering large, mission-critical enterprise applications at scale
• Strong curiosity and a passion for learning new tools and technologies
• Experience with automotive systems or similar industry platforms
• Experience with large Fortune 1000 environments
• Strong architectural instincts and solution design skills