Java Full Stack Developer

Role: Java Full Stack Developer

Location: Toronto, ON

Duration: Long Term Contract

Job Description:

We are seeking a Senior Java Full Stack Developer with strong expertise in Java backend development and React JS frontend development to build scalable, secure, and high‑performing enterprise applications.

The ideal candidate is hands-on, technically strong, capable of owning modules end-to-end, and experienced in mentoring junior team members.

Key Responsibilities

Design, develop, and maintain end-to-end web applications using Java and React JS

Build and optimize RESTful APIs and microservices using Spring Boot

Develop scalable and reusable React components, hooks, and state management

Translate business and functional requirements into technical solutions

Perform code reviews, ensure best practices, and enforce coding standards

Collaborate with Architects, Product Owners, QA, and DevOps teams

Ensure application performance, security, and scalability

Support CI/CD pipelines and cloud-based deployments

Mentor junior developers and provide technical guidance

Actively participate in Agile / Scrum ceremonies

Required Technical Skills

Backend (Java)

Java 8 / 11 / 17 (strong hands-on experience)

Spring Boot, Spring MVC, Spring Security

Microservices architecture

REST API development

Hibernate / JPA

Authentication & Authorization (JWT, OAuth2)

Exception handling, logging, and performance tuning

Frontend (React JS)

React JS (Functional Components, Hooks)

JavaScript ES6

HTML5, CSS3

Redux / Context API

Responsive UI development

Experience integrating React with REST APIs

Database

RDBMS: Oracle, PostgreSQL, MySQL

SQL query optimization

NoSQL: MongoDB (good to have)

Primary Skills

Java

SQL

GCP

Desirable / Additional Skills

PostgreSQL

React JS (Digital experience)

Keywords

Java Full Stack Developer, Java, ReactJS, Spring Boot, Microservices, SQL, PostgreSQL, GCP, REST APIs, CI/CD, Agile