Senior .Net Developer​/C#

Join to apply for the Senior .Net Developer / C# role at TEKsystems

As a Senior Application Developer, you’ll design and build software solutions for a mortgage servicing platform. This means creating applications that help manage home loans and related financial processes. You’ll use Microsoft technologies (like .NET and C#) and cloud services (primarily AWS) to develop these solutions. Your responsibilities include writing clean, efficient code for complex business applications, testing your work to ensure quality, deploying the software into production, and supporting it after launch.

You’ll also document your work and collaborate with teams to ensure everything runs smoothly.

• Use the latest tools and techniques (.NET, .NET Core, C#, Agile Methodologies, Web Services, SQL, SSIS)
• Have in-depth knowledge of JavaScript, CSS, HTML, functional programming, and front‑end languages
• Prepare software for deployment to production environments
• Respond to and resolve questions and issues logged by users of a live system
• Manage small projects independently and work as a team member on larger projects
• Perform other related duties as required and assigned
• Demonstrate behaviors aligned with the organization’s desired culture and values

• Write high‑quality code to build apps.
• Test your code to ensure it works.
• Deploy (launch) the app so people can use it.
• Fix problems when users report issues.
• Work on small projects alone or big ones with a team.

• C# or .NET Core:
  Experience with Version 8 (Version 6 is also acceptable)
• Cloud
  
  Experience:
  
  AWS – EC2, SQS, SNS, Lambda, Containers, API Gateway
• SQL
• Full‑Stack Development:
  Candidates must have hands‑on experience across all layers of the application, including both front‑end and back‑end
• AI Tools:
  Experience with AI‑based coding assistants (e.g., Git Hub Copilot or equivalent) is a must.

ONSITE 5x DAYS A WEEK in WESTLAKE, CALIFORNIA

• Bachelor’s degree or equivalent work experience
• 7+ years of relevant work experience
• Knowledge of Agile Methodologies, such as XP and Scrum is helpful
• Experience with relational databases (SQL Server, MySQL, Postgre
  
  SQL)
• Knowledge of design patterns, refactoring and unit testing
• Experience with Linux and open source software is a plus
• AWS Environment – EC2, SQS, SNS, Lambda, Containers, API Gateway experience highly preferred
• Financial services experience, especially related to mortgages and mortgage‑backed securities, is desirable
• AI Co‑pilot or equivalent AI coding experience

Experience Level:
Expert

This is a Contract to Hire position based out of Westlake Village, CA.

The pay range for this position is $67.00 - $72.11/hr.

• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre‑tax and Roth post‑tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long‑term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

We’re partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. As an industry leader in full‑stack technology services and talent services, we work with progressive leaders to drive change and build tomorrow by delivering business outcomes and making positive impacts in our global communities.

We are an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information, or any characteristic protected by law.