Principal Software Engineer

About this job

At Car Max, 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!

• Design and develop scalable backend APIs and services that power the Nexus platform using modern cloud-based technologies
• Collaborate with product management, systems architecture, and partner engineering teams to develop innovative solutions that solve complex business problems
• Lead technical initiatives and mentor engineers, providing guidance on best practices, architecture decisions, and implementation approaches
• Drive technical excellence across the team by establishing coding standards, conducting code reviews, and championing engineering best practices
• Develop cloud solutions using services, functions, and other key cloud platform components
• Implement continuous integration and Dev Ops practices, including automated testing, monitoring, and alerting
• Stay on top of industry trends and emerging technologies to continuously improve our technical capabilities and ensure our solutions remain cutting‑edge
• Collaborate effectively with multiple teams across the organization to deliver cohesive, high‑quality solutions
• Market your innovative ideas internally and evolve them according to feedback and critique within an agile environment

Nexus is building intelligent data platforms that transform how critical business information is managed, shared, and leveraged across Car Max. Our mission is to deliver scalable, intelligent data experiences that create business impact and enable data‑driven decision making. We’re focused on building systems that handle complex data at scale, creating the foundation for insights that will transform the business operates.

We are seeking a Principal Software Engineer who will help architect and build the technical foundation of our data platform. It takes a passion for technology and leadership to develop ground‑breaking products that handle complex data king collaboratively and creatively as part of a close‑knit product team, you will be part of the development process from end to end: consulting users, carrying out experiments, tackling complex technical challenges around data management and API design, and implementing scalable solutions.

You can balance technical excellence with business goals and know how to deliver backend solutions that enhance business value. As a Principal Engineer with leadership aspirations, you will not only write code but also guide technical direction, mentor team members, and help shape the future of our engineering organization. Creative, curious, and highly analytical, you never stop learning and thrive on building systems that unlock new possibilities.

• Strong teamwork and leadership skills, ability to learn quickly, excellent written and spoken communication required
• 7+ years of experience with .NET Core/C#/Microsoft Azure offerings
• Bachelor’s degree in computer science, a related field, or equivalent alternative education, skills, and/or practical experience is required
• Demonstrated ability or strong interest in technical leadership and mentoring engineers

• Strong expertise in REST API design and development
• Knowledge and passion towards backend architecture, app tier/service layer methodologies
• Experience with SQL Server and No
  
  SQL database technologies
• Experience integrating cloud‑based technologies and solutions (PaaS/IaaS/CaaS)
• Experience with version control systems (Git, Git Hub, etc.)
• Experience working with Agile and Dev Ops methodologies
• Knowledge of JSON and XML concepts, frameworks, and standards
• Experience implementing CI/CD pipelines…