Demo

Senior Full Stack Developer

Haystack
Trenton, NJ Full Time
POSTED ON 8/4/2026
AVAILABLE BEFORE 9/3/2026
We're hiring on behalf of a Haystack partner!

The Role

  • Design, develop, modernize, and support enterprise web applications
  • Refactor and modernize legacy Java-based applications into scalable, maintainable Spring Boot microservices
  • Design, develop, and maintain responsive user interfaces using React, JavaScript, CSS, and Bootstrap
  • Develop and consume secure RESTful APIs to support enterprise application integrations
  • Analyze business requirements and translate them into technical solutions
  • Design, optimize, and maintain relational database structures with a focus on Oracle database performance and SQL optimization

What You'll Need

  • Bachelor's degree in Computer Science, Information Technology, or a related field
  • 10 years of experience with Java development (Core Java and modern Java frameworks)
  • 7 years of experience with system refactoring and monolithic application modernization
  • 7 years of experience with Spring Framework technologies including Spring Boot, Spring MVC, and Hibernate
  • 5 years of experience developing applications with JavaScript and React
  • 5 years of experience designing and developing RESTful APIs

What's On Offer

  • Opportunity to work on enterprise-level web applications
  • Collaborative team environment
  • Chance to contribute to modernization initiatives

Apply via Haystack today!

Salary : $55 - $62

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