Walmart

Senior, Software Engineer (Java)

Walmart • $120K — $150K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's or Master's degree in Computer Science or related field
  • 5+ years of backend development experience
  • Deep expertise in Java, with strong Python skills preferred; Kotlin experience is a plus
  • Experience with Cassandra or similar NoSQL databases
  • Familiarity with Kafka or similar messaging/streaming platforms
  • Proficiency in designing large-scale distributed systems
  • Experience integrating machine learning models and GenAI LLMs into production environments preferred
  • Hands-on experience with Google Cloud Platform (GCP) preferred

Responsibilities

  • Architect and implement complex backend systems for pricing services using Java and Python
  • Lead integration of GenAI LLMs and machine learning models into backend systems
  • Design and optimize data storage solutions with Cassandra
  • Develop big data ETL jobs and manage data processing pipelines
  • Implement monitoring and dashboards using Grafana for system observability
  • Mentor junior engineers and facilitate technical discussions
  • Collaborate with cross-functional teams to create pricing solutions
  • Drive continuous improvements in performance and reliability of the systems

Benefits

  • Opportunity to impact pricing solutions for millions of customers
  • Culture of innovation and collaboration
  • Mentorship opportunities to guide junior engineers
  • Join a leading tech team in AI advancements
  • Exposure to large-scale distributed systems and cutting-edge technology environments
Full Job Description
Company Description

Walmart Global Tech is at the forefront of AI innovation, leveraging cutting-edge technologies to redefine customer experiences. We are seeking a Senior Machine Learning Engineer with deep expertise in Generative AI, LLMs, and scalable system design to drive impactful solutions.

Job Description

As a Senior Backend Software Engineer on Walmart's Pricing team, you will lead the design and development of large-scale backend event-driven systems leveraging GenAI LLMs, machine learning, Cassandra, Kafka, Apache Spark, and GCP. You'll architect scalable solutions to power pricing systems, mentor engineers, and drive innovation that impacts millions of customers. Your work will directly impact millions of Walmart customers and associates by ensuring competitive, accurate, and timely prices across our online and store channels.

Key Responsibilities:
  • Architect, design, and implement complex backend systems for pricing services using Java and Python (Kotlin experience is a plus)
  • Lead integration of GenAI LLMs and machine learning models into backend services
  • Design and optimize data storage with Cassandra, data streaming with Kafka, and large-scale processing with Apache Spark
  • Develop and manage big data ETL jobs
  • Implement and maintain monitoring and visualization dashboards with Grafana
  • Mentor and guide junior engineers; lead technical discussions and reviews
  • Collaborate with data scientists, ML engineers, and product managers to deliver pricing solutions
  • Ensure best practices in code quality, testing, and documentation
  • Drive continuous improvement in system performance, scalability, and reliability


Qualifications
  • Bachelor's or Master's degree in Computer Science or related field
  • 5+ years of backend development experience
  • Deep expertise in Java; experience with Kotlin is a plus, strong Python skills preferred
  • Experience with Cassandra (or similar distributed NoSQL databases)
  • Experience with Kafka (or similar messaging/streaming platforms)
  • Experience designing and building large-scale distributed systems
  • Proficiency with RESTful APIs and microservices
  • Experience integrating machine learning models and/or GenAI LLMs into production preferred
  • Experience with Apache Spark for big data processing preferred
  • Hands-on experience with GCP (Google Cloud Platform) preferred
  • Experience with monitoring/observability tools such as Grafana preferred
  • Excellent leadership, communication, and problem-solving skills

You'll sweep us off our feet if...
  • You have experience leading technical design discussions and mentoring junior engineers
  • You have a strong sense of ownership and focus on delivering business impact
  • You are passionate about performance, scalability, and reliability at massive scale
  • You thrive in fast-paced, agile environments and enjoy solving hard technical problems


Additional Information

All your information will be kept confidential according to EEO guidelines.

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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