Principal Software Engineer

Walmart; Bellevue (KY); On-site; USD 132,000 - 264,000; Full time

Benefits offered by this job

401(k) match

Stock purchase plan

Health benefits

Job summary

Walmart Global Tech Bellevue is seeking a Principal Software Engineer to shape the Marketplace Platform. You will lead architecture, design, and maintenance of advanced frameworks enabling seamless seller and partner integrations, mentoring juniors, and collaborating with product and UX/UI teams to deliver robust experiences.

You’ll work on backend microservices with TypeScript and React frontend, drive observability and performance, and guide cross‑functional teams toward scalable, resilient

Qualifications

• Bachelor’s degree in computer science, computer engineering, or related area with 5+ years in software engineering.
• Master’s degree preferred with 3+ years of software engineering experience and accessibility awareness.

Responsibilities

• Architect and design scalable, robust systems and maintain comprehensive documentation.
• Code, debug, and optimize services with a hands-on approach and code reviews.
• Mentor junior engineers and foster continuous learning across the team.
• Collaborate with cross-functional teams to enhance user experiences and integrations.
• Prioritize application health, performance, and monitoring, addressing issues proactively.
• Lead tech initiatives and drive adoption of cutting-edge technologies.
• Develop detailed project plans and manage tasks to ensure timely delivery.
• Uphold engineering excellence with disciplined code quality and problem solving.
• Provide strategic technical leadership and coordinate with other teams.

Skills

Microservice architecture

TypeScript

React

RESTful APIs

Git

CI/CD

Cloud-native (GCP/Azure)

Docker

Kubernetes

Observability

Education

Bachelor’s degree in CS/related

Master’s degree in CS/related

Tools

Git

CI/CD pipelines

GCP/Azure

Job description

Position Summary…

As a Principal Software Engineer on the Marketplace Platform team, you will play a pivotal role in driving the architecture, design and maintenance of advanced frameworks that elevate Walmart’s Marketplace capabilities, ensuring unparalleled experiences for both sellers and channel partners. Your responsibilities will encompass designing, coding, debugging, optimizing, and monitoring application health to ensure robust performance. In addition to these technical duties, you will provide mentorship to junior engineers, fostering their professional growth, and actively collaborate with product and UX/UI teams to deliver seamless integrations. You will oversee the management of the Walmart Marketplace Platform for experience and API, empowering third-party sellers to utilize services from Solution Partners effectively. This expanding business sector offers substantial opportunities for technological innovation and professional advancement within a dynamic, collaborative, and inclusive environment. Your leadership and expertise will be instrumental in shaping the future of Walmart’s Marketplace.

What you’ll do…

Join the innovative Walmart Marketplace Platform team,wherecreativity and technological innovation drive success. We specialize in enhancing Seller and Channel Partner Portal experiences and managing our advanced Marketplace API gateway. Our tech stack includes Java for backend services and ReactJS for frontend development,providingan exciting opportunity for growth and collaboration.

What You’ll Do

• Architecture & Design: Stay abreast of emerging technologies, make strategic architectural decisions, andmaintaincomprehensive documentation. Drive the architectural vision and ensure scalable and robust system design.

• Coding/Building: Dedicate 60% of your time to hands‑on coding, conducting thorough code reviews, debugging, and optimizing code. Work independently while ensuring top‑notch code quality and adherence to best practices.

• Mentoring & Learning: Provide mentorship to team members, fostering a culture of continuous learning and professional growth. Lead by example and encourage knowledge sharing within the team.

• Collaboration: Work closely with cross‑functional teams to enhance user experiences and ensure seamless integration. Facilitate effective communication and collaboration across departments.

• App Health, Quality, and Performance: Prioritize application quality, respond swiftly to feedback, improve performance, and address critical issues proactively. Implement best practices for monitoring and maintaining application health.

• Tech Initiatives & Innovation: Lead and contribute to technological advancements and innovation within the team. Champion new ideas and drive the adoption of cutting‑edge technologies.

• Time Management & Planning: Develop detailed project timelines, manage tasks efficiently, and practice effective time management. Ensure timely delivery of high-quality projects.

• Engineering Excellence: Focus on meticulous, detail‑oriented work, conduct rigorous code reviews, and resolve complex technical challenges. Uphold the highest standards of engineering excellence.

• Leadership: Provide strategic technical guidance, lead and manage projects, and coordinate with other teams to achieve successful outcomes. Exhibit strong leadership qualities and mentor junior team members.

What You Will Bring

• Proficiency in Microservice architecture for backend services

• Expertise in TypeScript and frontend frameworks such as React.

• Deep understanding of distributed systems, RESTful APIs, system design, and microservices architecture.

• Proficiency with version control systems (e.g., Git) and CI/CD pipelines.

• Familiarity with both SQL and NoSQL databases, as well as caching solutions.

• Experience working in platform teams or building shared tools and frameworks for other developers.

• Proven ability to write clean, testable, and maintainable code.

• Prior experience with cloud-native technologies (GCP/Azure) and DevOps practices.

• Strong analytical and problem‑solving skills.

• Excellent verbal and written communication skills.

• Demonstrated leadership abilities to lead projects and mentor junior team members.

• Experience in e-commerce or marketplace platforms.

• Familiarity with containerization tools like Docker and Kubernetes.

• Exposure to developer productivity, observability, or DevOps tools.

• Contributions to open‑source projects or active involvement in internal platform evangelism.

• About Walmart Global Tech
  Imagine working in an environment where one line of code can make life easier for hundreds of millions of people. That's what we do at Walmart Global Tech. We're a team of software engineers, data scientists, cybersecurity experts and service professionals within the world's leading retailer who make an epic impact and are at the fronte r of the next retail disruption. People are why we innovate, and people power our innovations. We are people‑led and tech‑empowered. We train our team in the skillsets of the future and bring in experts like you to help us grow. We have roles for those chasing their first opportunity as well as those looking for the opportunity that will define their career. Here, you can kickstart a great career in tech, gain new skills and experience for virtually every industry, or leverage your expertise to innovate at scale, impact millions and reimagine the future of retail. Walmart's culture is a competitive advantage, and its fostered by being together. Working together in person allows us to collaborate, align quickly and innovate with greater speed. We use our campuses to create purposeful connection rooted in deepening understanding and investing in the development of our associates.
  Our hubs: Walmart is a global company with offices across the United States and around the world. Our global headquarters is in Bentonville, Arkansas, with primary hubs in the San Francisco Bay area and New York/New Jersey.
  Benefits:
  Benefits: Beyond our great compensation package, you can receive incentive awards for your performance. Other great perks include 401(k) match, stock purchase plan, paid maternity and parental leave, PTO, multiple health plans, and much more.

Equal Opportunity Employer: Walmart, Inc. is an Equal Opportunity Employer By Choice. We believe we are best equipped to help our associates, customers and the communities we serve live better when we really know them. That means understanding, respecting and valuing unique styles, experiences, identities, ideas and opinions while being welcoming of all people.

The above information has been designed to indicate the general nature and level of work performed in the role. It is not designed to contain or be interpreted as a comprehensive inventory of all responsibilities and qualifications required of employees assigned to this job. The full Job Description can be made available as part of the hiring process.

At Walmart, we offer competitive pay as well as performance‑based bonus awards and other great benefits for a happier mind, body, and wallet. Health benefits include medical, vision and dental coverage. Financial benefits include 401(k), stock purchase and company‑paid life insurance. Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting. Other benefits include short‑term and long‑term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more. You will also receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes. The amount you receive depends on your job classification and length of employment. It will meet or exceed the requirements of paid sick leave laws, where applicable. For information about PTO, see https://one.walmart.com/notices. Live Better U is a Walmart‑paid education benefit program for full‑time and part‑time associates in Walmart and Sam’s Club facilities. Programs range from high school completion to bachelor’s degrees, including English Language Learning and short‑form certificates. Tuition, books, and fees are completely paid for by Walmart. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to a specific plan or program terms. For information about benefits and eligibility, see One.Walmart. The annual salary range for this position is $132,000.00 - $264,000.00 Additional compensation includes annual or quarterly performance bonuses. Additional compensation for certain positions may also include : Stock

Minimum Qualifications…

Option 1: Bachelor’s degree in computer science, computer engineering, computer information systems, software engineering, or related area and 5 years’ experience in software engineering or related area.
Option 2: 7 years’ experience in software engineering or related area.

Preferred Qualifications…

Master’s degree in computer science, computer engineering, computer information systems, software engineering, or related area and 3 years’ experience in software engineering or related area., We value candidates with a background in creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly. The ideal candidate would have knowledge of accessibility best practices and join us as we continue to create accessible products and services following Walmart’s accessibility standards and guidelines for supporting an inclusive culture.

Primary Location…

10900 Ne 4th St, Bellevue, WA 98004, United States of America

Walmart and its subsidiaries are committed to maintaining a drug‑free workplace and has a no tolerance policy regarding the use of illegal drugs and alcohol on the job. This policy applies to all employees and aims to create a safe and productive work environment.