Lead Full-Stack Engineer: Modernize Monoliths into Microservices

Mbi Llc; Trenton (NJ); On-site; USD 120,000 - 180,000; Full time

Job summary

Mbi Llc in New Jersey is hiring a Senior Full-Stack Developer to own hands-on development and modernization of enterprise web apps. You will refactor legacy systems into modular microservices, build responsive front-ends with React, and implement CI/CD with automated tests.

The role requires strong Java/Spring Boot experience and Oracle SQL optimization, with a focus on scalable, cloud-ready solutions across the full stack.

Qualifications

• Senior full-stack developer responsible for hands-on development and lifecycle support.
• Experience refactoring legacy apps into modular microservices and cloud-ready services.
• Proficient across full stack, with emphasis on Java/Spring Boot and React.
• Strong DB skills including Oracle and SQL optimization.
• Experience with CI/CD and automated testing.

Responsibilities

• Application Modernization: refactor legacy Java apps into Spring Boot microservices and build front-end with React/Bootstrap.
• API & Database: design RESTful APIs and optimize Oracle SQL and schemas.
• Requirements & Design: translate business needs into clean technical implementations.
• Testing & Quality: perform JUnit/Mockito/React Testing Library checks for reliability.
• Deployment & Maintenance: manage builds and CI/CD pipelines and provide post-launch support.

Skills

System Refactoring / Monolith Moderniz

Relational Databases & Data Analysis

Oracle Database Management

RESTful API Development

Software Deployment & CI/CD Tooling

React

Spring Boot

Bootstrap

Education

Bachelors in Computer Science or related field

Tools

React

Spring Boot

Bootstrap

Job description

Mbi Llc in New Jersey is hiring a Senior Full-Stack Developer to own hands-on development and modernization of enterprise web apps. You will refactor legacy systems into modular microservices, build responsive front-ends with React, and implement CI/CD with automated tests.

The role requires strong Java/Spring Boot experience and Oracle SQL optimization, with a focus on scalable, cloud-ready solutions across the full stack.