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Lead Java Developer

  • Mississauga, ON, Canada

Full-time

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Job details

Job type
Full-time
Apply by
Experience
6-10 years of hands-on experience in Java application development.
Posting language
English
Posted

Original job description

Role Overview

We are seeking an experienced Java Developer with strong expertise in enterprise application development, microservices architecture, API development, and distributed systems. The candidate will be responsible for designing, developing, and maintaining scalable applications while collaborating with business and technology teams to deliver robust solutions.

Key Responsibilities

Design, develop, test, and maintain enterprise-grade Java applications.

Develop scalable microservices using Java, Spring Boot, and related technologies.

Build and consume RESTful APIs and integrate with internal and external systems.

Work closely with business users, architects, and cross-functional teams to understand requirements and propose technical solutions.

Develop high-performance, secure, and resilient applications following best practices.

Participate in code reviews, unit testing, system integration testing, and production support.

Optimize application performance, troubleshoot issues, and ensure system reliability.

Implement CI/CD processes and support DevOps practices.

Maintain technical documentation and support application lifecycle management.

Required Technical Skills

6-10 years of hands-on experience in Java application development.

Strong proficiency in Core Java (Java 8/11/17).

Expertise in Spring Boot, Spring MVC, Spring Security, and Spring Data JPA.

Experience with REST API development and integration.

Strong knowledge of Microservices Architecture.

Experience with SQL databases such as Oracle, PostgreSQL, or SQL Server.

Familiarity with messaging technologies such as Kafka, JMS, or RabbitMQ.

Experience with version control systems like Git.

Strong understanding of Object-Oriented Design Principles and Design Patterns.

Experience with Unix/Linux environments.

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More about this job

Responsibilities

Design, develop, test, and maintain enterprise Java applications and scalable microservices, including REST APIs and integrations with internal and external systems. Collaborate with business and technology teams, improve application performance and reliability, support testing and production operations, and contribute to CI/CD, DevOps practices, and technical documentation.

Requirements

Requires 6–10 years of hands-on Java application development experience, with strong proficiency in Core Java and expertise in Spring technologies, microservices, and REST APIs. Candidates should also have experience with SQL databases, messaging technologies, Git, object-oriented design and patterns, and Unix/Linux environments.

Skills

  • Java
  • Core Java
  • Spring Boot
  • Spring MVC
  • Spring Security
  • Spring Data JPA
  • Microservices Architecture
  • REST API Development
  • SQL
  • Oracle
  • PostgreSQL
  • SQL Server
  • Kafka
  • JMS
  • RabbitMQ
  • Git

Visa sponsorship

Not detected in the job text

Categories

  • Software
  • Technology
  • Engineering

Keywords

  • Java
  • Core Java
  • Java 8
  • Java 11
  • Java 17
  • Spring Boot
  • Spring MVC
  • Spring Security
  • Spring Data JPA
  • Microservices Architecture
  • RESTful APIs
  • Distributed Systems
  • SQL
  • Oracle
  • PostgreSQL
  • SQL Server
  • Kafka
  • JMS
  • RabbitMQ
  • Git
  • Object-Oriented Design
  • Design Patterns
  • Unix
  • Linux
  • CI/CD
  • DevOps
  • Unit Testing
  • System Integration Testing
  • Application Performance Optimization

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