Senior Java Lead - Spring Boot & Microservices (Onsite NYC)

Global Business Ser. 4u; Buffalo (NY); On-site; USD 90,000 - 150,000; Full time

Job summary

Global Business Ser 4u Inc. is seeking a Java Lead Developer for a contract role in Manhattan, NY, with 2–3 days onsite weekly. Strong experience in Java 8+, Spring Boot, and microservices is required to design, build, test, and maintain robust backend systems.

You will drive backend architecture, mentor teammates, and collaborate across teams to deliver scalable solutions powering modern web and enterprise applications.

Qualifications

• Strong Java 8+ proficiency.
• Hands-on Spring Boot and Spring Security experience.
• Deep understanding of microservices architecture and design patterns.
• Experience with JUnit and contract testing tools.
• Familiarity with CI/CD practices and Git.
• Excellent communication and teamwork skills.

Responsibilities

• Design, develop, test, and maintain scalable Java backend services.
• Implement microservices with Spring Boot and Spring Security.
• Collaborate with cross-functional teams to power web and enterprise apps.

Skills

Java 8+

Spring Boot

Spring Security

Microservices

JUnit

Caching (Redis/Ehcache)

REST/SOAP APIs

CI/CD

Git

Communication & teamwork

Tools

Redis

Ehcache

REST APIs

SOAP APIs

Git

CI/CD pipelines

Job description

Global Business Ser 4u Inc. is seeking a Java Lead Developer for a contract role in Manhattan, NY, with 2–3 days onsite weekly. Strong experience in Java 8+, Spring Boot, and microservices is required to design, build, test, and maintain robust backend systems.

You will drive backend architecture, mentor teammates, and collaborate across teams to deliver scalable solutions powering modern web and enterprise applications.