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Senior Backend Java Developer

Job

Insight Global

Bentonville, AR (In Person)

Full-Time

Posted 2 days ago (Updated 21 hours ago) • Actively hiring

Expires 7/24/2026

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Job Description

Job Description We are seeking a Senior Backend Java Engineer to support the in-store checkout experience, driving innovation across store platforms and associate-facing applications. This role sits within the Front End Store Transformation team, focused on modernizing how customers and associates interact with checkout systems at scale. The ideal candidate brings a strong backend foundation in Java, paired with experience in modern frontend frameworks such as React and React Native, and a passion for building seamless, high-performance retail experiences.
Key Responsibilities:
  • Design, develop, and enhance checkout and point-of-sale (POS) experiences used across Walmart stores
  • Build and maintain scalable backend services using Java (Spring Boot) and Python
  • Develop modern, responsive frontend applications using React and React Native
  • Collaborate with product, UX, and engineering teams to deliver intuitive and reliable in-store experiences
  • Contribute to end-to-end development across the stack, from UI to APIs to backend services
  • Participate in system design, code reviews, and architecture discussions
  • Ensure high performance, reliability, and scalability for systems handling high transaction volumes
  • Troubleshoot production issues and optimize applications for performance and stability We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day.
We are an equal opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment regardless of their race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please send a request to HR@insightglobal.com.

To learn more about how we collect, keep, and process your private information, please review
Insight Global's Workforce Privacy Policy:
https://insightglobal.com/workforce-privacy-policy/. Skills and Requirements
  • 5-8+ years of experience as a Full Stack Engineer
  • Strong backend expertise in Java (Spring Boot, microservices architecture).
  • Experience with Python for backend services or scripting
  • Frontend experience with: React (required), React Native (strongly preferred for mobile/store device apps)
  • Experience building and consuming REST APIs and microservices
  • Exposure to POS systems, retail tech, or device integration
  • Strong in multithreading, performance tuning, and scalability
  • Experience working on checkout, POS, or in-store retail systems
  • Familiarity with device integrations or store systems (e.g., handhelds, scanners, kiosks)
  • Exposure to event-driven architectures (Kafka, messaging systems)
  • Experience operating at Walmart-scale systems (high volume, low latency)