Senior React & Java Full-Stack Engineer (Onsite)

Northern Base; Pennington (NJ); On-site; USD 140,000 - 190,000; Full time

Job summary

Northern Base seeks an experienced ReactJS and Java/Spring Boot Full-Stack Developer for an onsite role in Pennington, NJ. Build scalable web apps with React.js, Java 8/11/17+, Spring Boot, RESTful APIs, and microservices while ensuring security and performance.

Ideal candidates have 10–15 years of enterprise experience, strong UI/UX focus, CI/CD familiarity, and the ability to collaborate with analysts, architects, and product teams in a fast-paced environment.

Qualifications

• Strong expertise in React.js, JavaScript, HTML5, and CSS3.
• Proficient in React/Redux, TypeScript is a plus.
• Backend and API development with Java/Spring Boot stack.
• Experience with microservices, RESTful APIs, and databases.

Responsibilities

• Develop and maintain full-stack applications using React.js and Java/Spring Boot.
• Design scalable RESTful APIs and microservices.
• Ensure performance, security, and high-quality code through reviews and tests.
• Collaborate with analysts, PO, architect and cross-functional teams.

Skills

React.js

JavaScript (ES6+)

HTML5

CSS3

Redux / Context API

Java 8/11/17+

Spring Boot

Spring MVC

Spring Security

RESTful API development

Microservices

Oracle / SQL Server

JPA / Hibernate

Git, GitHub / Bitbucket

Jenkins / CI/CD

Docker

Maven / Gradle

SonarQube

Full-stack React.js & Java/Spring

Responsive frontend

Backend API development

Performance optimization

Code reviews

SDLC

Agile/Scrum

Collaboration with Business Analysts,

Product Owners, Architects

Technical documentation

Education

Bachelor's Degree in Computer Science

Tools

Kubernetes

TypeScript

GitHub

Jenkins

Docker

Maven/Gradle

CI/CD tooling

Job description

Northern Base seeks an experienced ReactJS and Java/Spring Boot Full-Stack Developer for an onsite role in Pennington, NJ. Build scalable web apps with React.js, Java 8/11/17+, Spring Boot, RESTful APIs, and microservices while ensuring security and performance.

Ideal candidates have 10–15 years of enterprise experience, strong UI/UX focus, CI/CD familiarity, and the ability to collaborate with analysts, architects, and product teams in a fast-paced environment.