Walmart

(USA) Principal, Software Engineer

Walmart$160K — $190K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in computer science or related field with 5 years of experience, or 7 years of experience in software engineering.
  • Extensive experience in platform engineering leadership and scalable infrastructure delivery.
  • Deep expertise in designing and scaling AdTech platforms and distributed systems.
  • Proficiency in AI/ML integration using languages such as Python, Java, and C++.
  • Strong technical skills across the software development lifecycle, including CI/CD and testing.
  • Demonstrated ability to mentor and influence architectural decisions across teams.

Responsibilities

  • Lead platform engineering efforts to develop scalable infrastructure and AI/ML frameworks.
  • Architect and implement cloud-native, distributed systems with a focus on availability and fault tolerance.
  • Oversee the full software development lifecycle including coding, testing, and deployment.
  • Integrate AI agents into applications using advanced programming languages.
  • Promote engineering best practices and enhance system interoperability.
  • Collaborate with stakeholders to define requirements and drive continuous improvement.

Benefits

  • Collaborative and agile work environment focused on innovation.
  • Opportunities for technical leadership and mentorship.
  • Focus on developing scalable and impactful technology solutions.
  • Exposure to cutting-edge technologies in the AdTech space.
  • Commitment to diversity and creating inclusive digital experiences.
Full Job Description
Position Summary...

What you'll do...

Role summary:
The Principal Software Engineer leads the design and delivery of scalable platform capabilities, driving technical execution across multiple teams. This role applies cloud-native architecture and distributed system principles to develop AI-enhanced applications and real-time data solutions. The position requires strategic technical leadership, mentorship, and collaboration with cross-functional partners to align engineering efforts with business objectives. The engineer ensures high-quality software development lifecycle management, fosters innovation, and promotes continuous improvement while maintaining architectural standards and operational excellence in a dynamic environment.

**Immigration Sponsorship support will NOT be available for this
position**

About the team:
Walmart's Advertising Technology group connects supplier brands with retail shoppers at an unmatched scale. This team of skilled engineers and data scientists operates in an agile environment to address complex, high-impact challenges. They manage billions of ad requests monthly through high-performance ad servers and develop intelligent data systems that ingest, model, and optimize vast data flows from online and in-store activities. Utilizing advanced machine learning and optimization algorithms, the team is committed to delivering exceptional experiences that meet the needs of customers and advertisers alike.
What you'll do:

  • Lead platform engineering efforts to deliver scalable infrastructure, reusable tooling, and AI/ML frameworks aligned with strategic roadmaps.
  • Architect and implement cloud-native, distributed systems ensuring high availability, scalability, and fault tolerance.
  • Oversee full software development lifecycle including coding, testing, deployment, monitoring, and incident response across multiple teams.
  • Integrate AI agents and intelligent applications using advanced programming languages and model-driven design principles.
  • Provide technical leadership, mentorship, and promote engineering best practices to enhance system interoperability and maintainability.
  • Collaborate with stakeholders to define requirements, measure success, and drive continuous improvement initiatives.


What you'll bring:

  • Extensive experience in platform engineering leadership, delivering scalable infrastructure and reusable tooling aligned with strategic roadmaps.
  • Deep expertise designing and scaling AdTech platforms and distributed systems leveraging Java/Spring Boot, Cassandra, Azure SQL, Kafka, Solr, Vespa, Vector DB, and Apache Airflow.
  • Proven expertise in cloud-native architecture and distributed system design ensuring high availability and fault tolerance.
  • Strong technical execution skills across the full software development lifecycle, including CI/CD, testing, and incident response.
  • Proficiency in AI/ML integration and building intelligent software systems using languages such as Python, Java, and C++.
  • Demonstrated ability to provide technical mentorship and influence architectural decisions across teams.
  • Excellent collaboration and communication skills with cross-functional stakeholders.


Minimum Qualifications...

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

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, 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...

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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