Principal Software Engineer

Sunnyvale, California

Position Summary...

What you'll do...

What you'll do...

Our team is growing, and we are looking for a highly motivated Lead Software Engineer - Back End who is a self-starter and will play a critical role in the design and implementation of some of our core applications that impacts the largest retailer in the world!

In this role, you will lead and help our teams in driving down costs to implementation, championing continuous improvement, driving innovation and mentoring engineers on developing and enhancing our enterprise scale software applications and frameworks.

About the team:
Marketplace Engineering team is at the forefront of building core platforms and services to enable Walmart to deliver vast selection at competitive prices and with best-in-class post-order experience by enabling third-party sellers to list, sell and manage their products to our customers on We do this by managing the entire seller lifecycle, monitoring customer experience, and deliver high- value insights to our sellers to help them plan their assortment, price, inventory. The team also actively collaborates with partner platform teams to ensure we continue to deliver the best experience to our sellers and our customers.

You'll make an impact by:

  • Developing highly scalable services to process millions of requests per day and solve complex software systems problems by leveraging state-of-the-art technology.
  • Gaining exposure to various technologies used in Marketplace and E-commerce platforms.
  • Driving projects of high visibility across the organization.
  • Leading team in designing systems and apps
  • Leading team projects by reviewing project requirements, translating requirements into technical solutions while gathering requested information
  • Designing and developing backend microservices and REST APIs for web applications using JVM ecosystem (Kotlin, Java) and other languages and frameworks (Python, Go)
  • Troubleshooting open issues and bug-fixes
  • Partnering and collaborating with project team and cross functional teams
  • Providing leadership to the project team
  • Leading the discovery phase of projects to come up with high level design by partnering with the product management, project management, and business and user experience teams.

You'll sweep us off our feet if you have...
  • Over 8 years of experience in architecting large scale systems with challenges of scalability and delivering sub-second latencies on 99.99% uptime.
  • Master's degree in Computer Science or equivalent experience
  • Practical knowledge of agile software development methodologies (e.g., XP, Scrum)
  • Experience in large scale distributed systems and event-driven architectures
  • Experience and fluency with relational / non-relational databases (e.g. MySQL, Oracle, Cassandra, etc)
  • Strong background in algorithms and data structures
  • Expertise in one or more programming languages (e.g. Java, Python, etc)
  • Strong inclination towards exploring and learning new technologies
  • Proven understanding of microservices oriented architecture and extensible REST APIs
  • Understanding of SaaS, PaaS, IaaS industry with hands on experience with public or private cloud offerings (e.g., AWS, GAE, Azure)
  • Advanced knowledge of performance, scalability, and system architecture with an eye toward avoiding and reducing technical debt.
  • Understanding of machine learning
  • Nice to have: Previous experience in the marketplace domain

Benefits & Perks:
Beyond competitive pay, 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.

About Global Tech:
Imagine working in an environment where one line of code can make life easier for hundreds of millions of people and put a smile on their face. That's what we do at Walmart Global Tech. We're a team of 15,000+ software engineers, data scientists and service professionals within Walmart, the world's largest retailer, delivering innovations that improve how our customers shop and empower our 2.2 million associates. To others, innovation looks like an app, service or some code, but Walmart has always been about people. People are why we innovate, and people power our innovations. Being human led is our true disruption.

We're virtual:
Working virtually this year has helped us make quicker decisions, remove location barriers across our global team, be more flexible in our personal lives and spend less time commuting. Today, we are reimagining the tech workplace of the future by making a permanent transition to virtual work for most of our team. Of course, being together in person is an important part of our culture and shared success. We'll collaborate in person at a regular cadence and with purpose.

Minimum Qualifications...

Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications.

Minimum Qualifications: Bachelor of Science and 6 years' experience in software engineering OR Master of Science and 3 years' experience in software engineering OR PhD

Preferred Qualifications...

Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.

Master's degree in Computer Science or related field and 4 years' experience in software engineering or related field

Primary Location...
840 W CALIFORNIA AVE, SUNNYVALE, CA 94086-4828, United States of America

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