Sr Full stack Developer - Java, Spring Boot

markham, on, Canada • Posted June 05, 2026

Job Type: Full-time
Location: markham, on
Posted: June 05, 2026
Category: IT & Technology
Application Deadline: July 15, 2026

Role Description

What you’ll do

  • Build scalable, high‑performance RESTful APIs using Java17/21 and Spring Boot3.x.
  • Architect and implement microservices with Spring Cloud (Gateway, Config, Discovery).
  • Implement security with Spring Security6.x (OAuth2, JWT, RBAC), including structured logging and robust error handling.
  • Design and optimize schemas; tune queries with Spring Data JPA/Hibernate6.x for PostgreSQL/MySQL.
  • Apply caching (Redis/Caffeine) where needed.
  • Write unit/integration tests (JUnit5, Mockito, Testcontainers) and ensure performance/availability (health checks, DR).
  • Drive technical governance, code quality, and adherence to architecture standards; lead root‑cause analysis for production incidents.
  • Develop responsive UIs with Angular17+ or React, TypeScript5.x, HTML5, SCSS, and Material UI.
  • Integrate backend APIs; handle async workflows with RxJS and adopt state management (NgRx or Signals).
  • En...

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