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Hiring: Sr. Java Developer (Back-End) at NYC, NY/ Jersey City, NJ/ Alpharetta, GA

Realtech Services LLCJersey City, NJ🇺🇸United StatesPosted 14 Sept 2026

Quick Overview

Seniority
Mid Senior
Work mode
On Site
Location
Jersey City, NJ, United States
Posted
2 days ago
MicroservicesMongoDBSpringSpring BootAWSAzureGenerative AIGoogle CloudHibernateJavaKafka

Job Description


Position: Sr. Java Developer (Back-End)

Location: NYC, NY/ Jersey City, NJ/ Alpharetta, GA (Need Day 1 Onsite)

Duration: Long Term Contract

Contract Type: W2 only (No C2C)

Primary Skills: (Java, Spring Boot, Kafka, Microservices, Mongo DB, Github Copilot)

Job Description:

We are seeking a highly experienced Senior Java Developer with a background in Generative AI and expertise in using GitHub Copilot to join our innovative team. The ideal candidate will possess over 12 years of experience in software development, with a proven track record of designing and implementing complex applications.

Responsibilities:

  • Design, develop, and deploy Java-based applications incorporating GitHub Copilot.
  • Develop and maintain backend services using Java and Spring Boot.
  • Work with Kafka for messaging and data streaming.
  • Implement and optimize MongoDB queries and schemas.
  • Leverage GitHub Copilot to improve development speed and code quality, serving as a mentor for team members on best practices.
  • Architect and implement scalable microservices and RESTful APIs aligned with business requirements.
  • Ensure the performance, security, and reliability of applications throughout their lifecycle.
  • Conduct code reviews, providing constructive feedback and guidance to junior developers.
  • Collaborate with cross-functional teams to define project scope, objectives, and deliverables.

Requirements:

  • Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.
  • Hands on experience with Java, Spring Boot, Kafka, Microservices, Mongo DB, Github Copilot.
  • Minimum of 12 years of proven experience as a Java Developer with a strong portfolio of successful projects.
  • Proficiency in utilizing GitHub Copilot OR any other AI-assisted development tools to optimize coding processes.
  • Deep understanding of the Spring Framework, Hibernate, and other Java technologies.
  • Familiarity with cloud platforms (AWS, Azure, Google Cloud) and their AI services.
  • Experience with NOSQL database such as MongoDB.
  • Exceptional problem-solving skills, attention to detail, and a commitment to quality.

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