Jobs and Careers
CA

Principal Software Engineer

CarMax
United Statesfull_timeVerifiedPosted 25 Mar 2025

About the role

8117 - Dallas Technology Hub - 5830 Granite Parkway, Plano, Texas, 75024

CarMax, the way your career should be! 

About this job

At CarMax, we are industry disruptors. At the heart of our innovation is new digital products. Working on many different aspects of the customer experience, our Principal Engineers research and discover new opportunities and shape products to fulfill them. From inception to completion, you will develop tools and technology, learning quickly from our spirit of experimentation. You will have a direct impact on improving the performance of our business and ensuring customers can buy the vehicles they want in a way that is right for them!

About the position

We are seeking a full stack Principal Software Engineer who will be part of our Transact team focused on building iconic associate experience solutions to help CarMax customers complete their journey in store. Your cloud based technology experience coupled with expertise around API’s, services, Front End, will help craft innovative solutions to meet our business goals. From inception to completion, you will develop tools and technology, learning quickly from our spirit of experimentation. Overall, you will have a direct impact on improving the customer satisfaction by empowering our associates through unified workflows to progress the customers their transaction.

As part of the Technology organization, you will have the opportunity to build associate experiences platforms and create best in class developer experiences in bringing business and platform capabilities to market.

What you will do – Essential responsibilities

  • Maintain and grow a deep knowledge of the retail, specifically from the point of view of how technology is being applied to power the In Store Transact Associate experiences.
  • Partner with the team and work across the entire application stack, building both the frontend and backend.
  • Design and Develop API’s and services using a variety of technologies. Technologies include .NET (C#), cloud-based PaaS / IaaS/ CaaS, open source and third-party solutions tools.
  • Develop robust monitoring and alerting.
  • Implement continuous integration and DevOps practices, including automated testing.
  • Leverage a variety of technologies to provide solutions to business needs.
  • Maintain and grow a deep knowledge and functional expertise of the supported technology ecosystem and touchpoints and impacts of changing industry best for deployment.
  • Partner closely with Architects and Lead Engineers to drive the Transact ecosystem forward.
  • Create technical and support artifacts for applications and integrations.

Qualifications and requirements

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

  • 8+ years of Application Development
  • Bachelor’s degree in computer science, a related field, or equivalent alternative education, skills, and/or practical experience is required.
  • Hands on programming using C# .Net Core, and Azure or similar cloud technologies required.
  • REST API design experience required.
  • Experience with API design and development required.
  • Knowledge and passion towards the App tier/Service layer methodologies required.
  • Proficiency in front-end technologies such as React, Typescript, Angular, HTML/CSS.
  • Strong teamwork skills, ability to learn quickly, excellent written and spoken communication required.
  • Experience integrating cloud-based technologies and solutions required.
  • Experience with scripting Infrastructure as code in a CI/CD pipeline
  • Prior experience working with container technology such as Docker, version control systems (SVN, GitHub, etc.), build management and CI/CD and monitoring tools.
  • Knowledge of SQL Server and NoSQL database technologies required.
  • Knowledge of JSON and XML concepts, frameworks, and standards, required.
  • Experience working with Agile and DevOps methodologies, required.
  • Experience implementing end point security utilizing industry standards and best practices.

Preferred Qualifications

  • In-depth knowledge of relational databases, SQL and NoSQL knowledge and experience preferred.
  • Knowledge of API Gateway technologies, preferred.
  • Expertise with front-end client-side development, frameworks, and patterns such as Micro front ends with module federation is a plus.

Work Locatio

Apply for this role

Generate a tailored application kit with a matched cover letter, interview prep, and CV highlights — in under 60 seconds.

Apply Now →Generate Application Kit

Free account required — sign up in 30s

Company

CarMax

View company profile →