Senior Software Engineer

As a Senior Software Engineer, you will play a key role in shaping best-in-class, cloud-native products that enhance CarMax’s digital customer experience. You will help drive meaningful innovation, partnering closely with product and design teams to deliver solutions rooted in integrity, transparency, and technical excellence. You’ll work in an environment that encourages experimentation, continuous learning, and respect for every team member’s voice, all while building solutions that simplify and elevate the way customers buy and sell cars.

Team Overview

You will join a collaborative, highly skilled engineering team focused on delivering modern, scalable solutions across CarMax’s appraisal journey and customer workflows. Our team embraces curiosity, open-minded problem solving, and a mindset of continuous improvement, ensuring we deliver reliable, thoughtful, and forward-looking technology. We support each other, share ownership of outcomes, and value clear communication, creating a place where engineers can grow and excel.

Role Responsibilities

In this role, you will:

• Design and deliver cloud-native services, APIs, and applications using .NET (C#), Azure PaaS, and containerized architectures.

• Develop user-focused workflows and backend services that improve efficiency, clarity, and transparency across appraisal processes.

• Collaborate with product managers, designers, and architecture partners to translate concepts into high-impact production solutions.

• Support and maintain team-owned systems through on-call rotations (as applicable).

• Apply engineering best practices and emerging technologies to improve reliability and performance.

• Contribute across the full development lifecycle-from discovery and prototyping through delivery and operational excellence.

Purpose of the Role

This role requires a passion for engineering, problem solving, and building scalable cloud solutions that reflect CarMax’s people-first values. You’ll work creatively and collaboratively, contributing to patterns, guidance, and design approaches for cloud applications and infrastructure. Because cloud technologies evolve quickly, we value engineers who take initiative, stay curious, and embrace continuous learning. Success in this role also requires strong ownership, communication skills, and a customer-focused mindset, ensuring our products are reliable, intuitive, and trusted.

• Bachelor’s degree in Computer Science, a related technology field, or equivalent experience.

• 5+ years of professional engineering experience with demonstrated ownership of complex systems.

• Strong analytical, diagnostic, and problem-solving abilities with attention to detail.

• Demonstrated enthusiasm for automation and eliminating manual processes.

Technical Skills - Required

• Front-end development experience with React, JavaScript/TypeScript, and modern UI patterns.

• Strong HTML/CSS skills within production React environments.

• Experience with automated UI and end-to-end testing tools (e.g., Playwright).

• Hands-on experience with C#/.NET Core, RESTful API design, and backend services.

• Experience with Azure or comparable cloud platforms.

• Familiarity with Git, JSON, relational databases, and cloud integration best practices.

Preferred Qualifications

• Background with micro-frontend patterns or module federation.

• Knowledge of React architectural models such as Redux or Flux.

• Experience working within Agile, DevOps, CI/CD, and automated testing ecosystems.

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 Senior 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!, Plano: This role will be based out of the CarMax Dallas Tech Hub (Plano, TX) and associates will work onsite 2 days per week

Work Authorization: Applicants must be currently authorized to work in the United States on a full-time basis. Sponsorship will not be considered for this specific role.

About CarMax

CarMax disrupted the auto industry by delivering the honest, transparent and high-integrity experience customers want and deserve. This innovative thinking around the way cars are bought and sold has helped us become the nation’s largest retailer of used cars, with over 200 locations nationwide.

Our amazing team of more than 25,000 associates work together to deliver iconic customer experiences. Along the way, we help every associate grow their career and achieve their best, at work and in their community. We are recognized for our commitment to training and diversity and are one of the FORTUNE 100 Best Companies to Work For®.

Our Commitment to Diversity and Inclusion:

CarMax is committed to bringing together people from different backgrounds and perspectives, providing employees with a safe, welcoming, and inclusive work environment.