Backend Java Developer - Spring Boot, Microservices, REST APIs & Kafka

Backend Java Developer – Spring Boot, Microservices, REST APIs & Kafka

Location: Toronto, ON – Hybrid (4 Days WFO)

Duration: 9+ Months

Experience Required: 6–8 Years

Skills: Core Java

Responsibilities

• Design, develop, and maintain Java-based applications using Spring Framework and Spring Boot (2.x)
  

• Build, enhance, and maintain RESTful APIs and microservices following best practices
  

• Implement event-driven and messaging solutions using MQ and Kafka
  

• Develop data access layers using Hibernate and SQL-based persistence
  

• Work with Oracle databases, including writing efficient SQL queries and optimizing performance
  

• Handle data serialization and exchange using JSON
  

• Ensure application security, scalability, performance, and high availability
  

• Contribute to job orchestration and workflow processing within the platform
  

• Enhance logging, monitoring, and overall system reliability
  

Essential Skills

Java & Backend Technologies

• Core Java
  

• Spring Framework
  

• Spring Boot (2.x)
  

• RESTful APIs
  

• Microservices Architecture
  

• Kafka
  

• MQ
  

• Hibernate
  

• Oracle Database
  

• SQL
  

• JSON
  

UI / Styling

• Bootstrap
  

• CSS Grid
  

• Responsive Design
  

• Material UI
  

Performance & Accessibility

• Lazy Loading
  

• Critical CSS
  

• Web Performance Optimization
  

• WCAG 2.1+
  

• Cross-Browser Testing
  

• AODA Compliance
  

Tools & Methodologies

• Git
  

• GitHub
  

• GitHub Actions
  

• Jira
  

• Agile
  

• Scrum
  

• DevOps
  

• CI/CD
  

• Webpack
  

• Figma
  

• Docker
  

• Kubernetes
  

Preferred Qualifications

• Experience building scalable and high-performance enterprise applications
  

• Strong understanding of distributed systems and event-driven architectures
  

• Experience working in Agile delivery environments
  

• Knowledge of containerization and orchestration technologies