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Java Developer

Haystack

seniorpermanentbackend New York, NY 44 days ago via LinkedIn

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Tags

JavaSpring BootMicroservicesOracleMS SQLSQL Performance TuningKafkaKubernetesCI/CDDevOps

About the role

Role Overview

You will develop and maintain Java-based solutions for enterprise clients, with a focus on microservices, databases, and deployment automation. You’ll also drive technical initiatives and proof-of-concepts (POCs) leveraging Generative AI.

Responsibilities

  • Develop software solutions using Java and Spring Boot.
  • Design and implement microservices architecture.
  • Perform SQL performance tuning and manage database interactions with Oracle or MS SQL.
  • Use DevOps tools and CI/CD pipelines to support software deployment.
  • Conduct performance monitoring and tuning for applications.
  • Lead technical initiatives and POCs using Generative AI.

Requirements

  • 5+ years of software engineering experience.
  • Strong expertise in Java, Spring Boot, JUnit, JPA, and microservices.
  • Hands-on experience with Kafka, Tomcat, Oracle/MS SQL, and SQL performance tuning.
  • Container platform experience: OpenShift or Kubernetes.
  • CI/CD and DevOps tooling experience: GitHub Actions, Jenkins, SonarQube, Splunk.
  • Senior Java engineer-level expertise.

What’s Offered

  • Medical, dental, and vision insurance
  • 401(k), Retirement Plan, HSA
  • Career growth and professional development opportunities

About Haystack

Haystack is a technology staffing and workforce solutions company serving Fortune 500 companies, government agencies, and enterprise organizations across North America. It helps organizations build high-performing teams by providing talent and delivery support for technology initiatives.

Scraped 8/11/2026