Haystack
← Back to Jobs
Technology
PR

Java Backend Developer

ProhiresBentonville, AR🇺🇸United StatesPosted Sep 30, 2026

Quick Overview

Seniority
Mid Senior
Work mode
On Site
Location
Bentonville, AR, United States
Posted
Yesterday
MicroservicesSQLSpringSpring BootAzureJavaKubernetesREST

Job Description

Java Backend Developer – Contract(W2)
Location: Bentonville, AR
Employment Type: Contract
Work Model: Onsite
Client: Walmart
Role: Java Backend Developer / Software Engineer
Focus: Pure Backend Development – Microservices & Strong DSA
Job Description
We are looking for a strong Java Backend Developer for a contract opportunity in Bentonville, AR. The ideal candidate will have extensive hands-on experience building scalable backend applications using Java, Spring Boot, and Microservices, along with excellent Data Structures & Algorithms (DSA) and problem-solving skills.
This is a pure backend development role. Candidates should be comfortable working on complex backend systems, designing APIs and microservices, solving coding challenges, and developing high-performance distributed applications.
Key Responsibilities
  • Design, develop, and maintain scalable backend applications using Java and Spring Boot.
  • Build and enhance Microservices-based architectures.
  • Develop robust REST APIs and backend services.
  • Write clean, efficient, maintainable, and production-ready Java code.
  • Apply strong Data Structures & Algorithms knowledge to solve complex engineering problems.
  • Work on high-volume and high-performance distributed systems.
  • Participate in technical design, code reviews, debugging, and performance optimization.
  • Develop and maintain database integrations using SQL, ORM, Spring Data, and related technologies.
  • Work with Kubernetes/K8s and cloud-native environments.
  • Collaborate with engineering, architecture, QA, DevOps, and other technical teams.
  • Troubleshoot production issues and identify root causes.
Required Skills
  • Strong hands-on experience with Core Java.
  • Strong experience with Spring Boot.
  • Extensive experience developing Microservices.
  • Excellent knowledge of Data Structures & Algorithms (DSA).
  • Strong problem-solving and coding skills.
  • Experience designing and developing RESTful APIs.
  • Strong understanding of OOP, design patterns, and backend application architecture.
  • Experience with SQL and relational databases.
  • Experience with Spring Data / ORM frameworks.
  • Experience with Kubernetes (K8s).
  • Understanding of CI/CD and modern software development practices.
  • Experience developing scalable, secure, and high-performance backend systems.
Preferred Skills
  • Cloud experience with Azure / AKS.
  • Experience with distributed systems and cloud-native applications.
  • Knowledge of Spring Security.
  • Experience with application performance optimization.
  • Experience working in large-scale enterprise environments.
Important
This is a backend-focused position. We are specifically looking for candidates with strong hands-on Java + Spring Boot + Microservices + DSA experience rather than primarily UI/frontend-focused Java developers.
Candidates should be comfortable with coding and DSA-based technical interviews.
Must-Haves
Java | Spring Boot | Microservices | DSA | REST APIs | Backend Development | Kubernetes

Similar jobs