Java Lead Developer - F2F J- Unit Coding Interview

Global Business Ser. 4u; New York (NY); Hybrid; USD 140,000 - 180,000; Full time

Job summary

A leading IT consulting firm in New York is seeking a highly experienced Lead Java Backend Developer (Contractor) to join their team. This hands-on role requires a strong background in building and maintaining scalable microservices using Spring Boot and handling applications with millions of transactions. The ideal candidate will possess excellent problem-solving skills and the capability to lead teams effectively. This contract position offers flexibility with onsite requirements three days per week, aiming for a mid-senior level candidate.

Qualifications

• 12–16 years of experience in Java backend development.
• Strong expertise in Spring Boot, Microservices architecture, and RESTful API design.
• Solid experience with JUnit and test-driven development.
• Proven background in handling applications processing millions of transactions daily.
• Experience with caching, queuing, and database optimization techniques.
• Familiarity with CI/CD, Git, and containerization tools (Docker/Kubernetes).
• Excellent problem-solving skills and the ability to work independently and lead teams.

Responsibilities

• Build and maintain scalable microservices using Spring Boot.
• Provide technical leadership and guidance to teams.
• Handle applications involving millions of transactions.

Skills

Java backend development

Spring Boot

Microservices architecture

RESTful API design

JUnit

Test-driven development

Caching

Queuing

Database optimization

CI/CD

Git

Docker

Kubernetes

Tools

Docker

Kubernetes

Git

CI/CD

Job description

Lead Java Backend Developer (Contractor)

Location: New York, NY (Onsite – 3 Days per Week)

Candidate Requirement: Local to NY or NJ

Duration: 12+ Month

We are seeking a highly experienced Lead Java Backend Developer (Contractor) to join our team in New York. The ideal candidate will have a strong background in building and maintaining scalable microservices using Spring Boot, and must have handled applications involving millions of transactions. This is a hands‑on technical leadership role, suited for someone with a deep understanding of high‑performance backend systems and team guidance.

Required Skills

• 12–16 years of experience in Java backend development.
• Strong expertise in Spring Boot, Microservices architecture, and RESTful API design.
• Solid experience with JUnit and test‑driven development.
• Proven background in handling applications processing millions of transactions daily.
• Experience with caching, queuing, and database optimization techniques.
• Familiarity with CI/CD, Git, and containerization tools (Docker/Kubernetes).
• Excellent problem‑solving skills and the ability to work independently and lead teams.

Seniority Level

Mid‑Senior level

Employment type

Contract

Job function

Engineering and Information Technology

Industry

IT Services and IT Consulting