(USA) Senior, Software Engineer (Java)

Position Summary...

What you'll do...

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 

• 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. Were a team of software engineers, data scientists, cybersecurity experts and service professionals within the worlds leading retailer who make an epic impact and are at the forefront 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.

• Flexible, hybrid work:
  We use a hybrid way of working that is primarily in office coupled with virtual when not onsite. Our campuses serve as a hub to enhance collaboration, bring us together for purpose and deliver on business needs. This approach helps us make quicker decisions, remove location barriers across our global team and be more flexible in our per