Walmart

Principal Software Engineer

Walmart$150K — $180K *
Consumer Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in a relevant field or 7+ years of software engineering experience.
  • 5+ years of software engineering experience if no degree is held.
  • Proficiency in Java, React.js, and TypeScript.
  • Experience with microservices architecture and RESTful API development.
  • Knowledge of cloud-native technologies and CI/CD pipelines.

Responsibilities

  • Design and build high-performance applications using modern technologies.
  • Architect and develop microservices and APIs for the Marketplace Platform.
  • Lead technical design discussions to drive architectural decisions.
  • Conduct hands-on coding, debugging, and performance optimization.
  • Mentor and promote engineering best practices within the team.
  • Collaborate with cross-functional teams including Product Managers and UX/UI designers.
  • Maintain and enhance application health through monitoring and improvements.

Benefits

  • Opportunity to work with cutting-edge technology in the eCommerce sector.
  • Collaboration with diverse teams across product, engineering, and design.
  • Access to mentoring and leadership development.
  • Involvement in the continuous innovation of Walmart's Marketplace Platform.
  • Flexibility of working in a fast-paced, high-impact environment.
Full Job Description
Job Description

Are you ready to build the future of eCommerce with one of the world's largest retailers?

Walmart is growing our Marketplace Platform Engineering team and is looking for an experienced Principal Software Engineer to help shape the technology powering millions of customers and thousands of third-party sellers. If you're passionate about building scalable platforms, solving complex technical challenges, and mentoring engineering teams, we'd love to hear from you!

As a Principal Software Engineer, you'll play a key role in designing, developing, and maintaining the Walmart Marketplace Platform, driving innovation through modern cloud-native technologies while collaborating with product, UX, and engineering teams to deliver world-class solutions.

What You'll Do
  • Design and build scalable, high-performance applications using Java, React, and TypeScript.
  • Architect and develop microservices and RESTful APIs for Walmart Marketplace.
  • Lead technical design discussions and drive architectural decisions for distributed systems.
  • Perform hands-on coding, code reviews, debugging, testing, and performance optimization.
  • Mentor software engineers and promote engineering best practices across the team.
  • Collaborate with Product Managers, UX/UI designers, and cross-functional engineering teams.
  • Maintain application health through monitoring, troubleshooting, and continuous improvements.
  • Build and enhance developer platforms, frameworks, and shared engineering tools.
  • Leverage cloud-native technologies, CI/CD pipelines, Docker, and Kubernetes to deliver reliable solutions.
  • Champion innovation and contribute to the continuous evolution of Walmart's Marketplace Platform.


Qualifications

Bachelor's degree in Computer Science, Computer Engineering, Software Engineering, Computer Information Systems, or a related field and 5+ years of software engineering experience, OR

7+ years of software engineering experience in lieu of a degree.

Preferred Qualifications

We're looking for candidates with experience in:
  • Java
  • React.js
  • TypeScript
  • Microservices Architecture
  • Distributed Systems
  • RESTful API Development
  • System Design
  • Git and CI/CD Pipelines
  • SQL and NoSQL Databases
  • Docker and Kubernetes
  • Google Cloud Platform (GCP) or Microsoft Azure
  • Platform Engineering or Shared Developer Tools
  • Technical Leadership and Mentoring
  • Application Performance Optimization
  • E-commerce or Marketplace Platforms (preferred)


Additional Information

About Walmart

WalmartLabs is accelerating their development to redefine the shopping experience to meet the changing needs of our customers wherever they are —in a store, on our website, or on their mobile device.

Walmart Careers

Joining Walmart means becoming part of a world-renowned team that leads with innovation and is committed to creating impact. As the largest retailer globally, Walmart offers unparalleled job opportunities and career growth in an environment that values diversity and leadership. Work You’ll Do At Walmart, you will be part of a dynamic team that drives our mission to help people save money so they can live better. Engage in work that matters with a company that offers both stability and the flexibility to explore different career paths. Transform the retail landscape with your skills and help shape the future of millions of customers worldwide. Walmart is at the forefront of combining retail with advanced technology, making it an exciting place for professional growth and innovation. Lead with Us Step into a role that harnesses your potential and places you at the intersection of retail and technology. Walmart is not just a company; it's a community where you can develop your leadership skills and contribute to a culture that nurtures professional growth. Work with a diverse team of experts who bring a wealth of knowledge and experience to the table. Our commitment to diversity training ensures that all team members are valued and can thrive. Walmart Careers and Employment Opportunities We are continuously expanding our team to include enthusiastic professionals eager to drive change and make a significant impact. Explore a range of positions from entry-level to executive, each offering competitive benefits and the opportunity to advance. Innovate with Us Join Walmart and be part of a team that is dedicated to innovation and excellence. With over 2.3 million associates worldwide, you are joining the largest private employment group, ready to innovate, lead, and impact the global market. Internship Programs Kickstart your career with a Walmart internship. Gain invaluable experience, build your resume, and develop networking connections that will empower your career journey. Our internships provide a platform to apply your academic knowledge in real-world scenarios, preparing you for future employment. Be Part of a Great Team At Walmart, our team is our strength. We invest in our employees through robust training programs, leadership development, and opportunities for career advancement. Enjoy the benefits of working in a supportive and inclusive environment where every member’s contribution is valued. Future-Proof Your Career Your journey at Walmart can be as vast as your ambitions. With endless opportunities to grow, learn, and lead, you can take your professional experience to new heights. Benefit from our comprehensive training programs and develop the skills needed for tomorrow’s challenges. Stay Connected Join Our Team Search open positions that match your skills and interests. We are looking for passionate, curious, creative, and solution-driven team players. Explore the diverse job opportunities at Walmart and find where you can make a difference. Keep Up to Date Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. READ CAREERS BLOG Job Alert Emails Personalize your subscription to receive job alerts, latest news, and insider tips tailored to your preferences. Discover the exciting and rewarding opportunities that await at Walmart. SEARCH WALMART JOBS Join Walmart today and be part of a story of growth, innovation, and leadership.
Learn more about Walmart
Size
2,300 employees
Market Cap
$387 billion
Industry
Net Income
$13.5 billion
Founded
1962
5 Year Trend
+3.3%
Revenue
$559.1 billion
NASDAQ

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