Sr. Java Developer
$85,000–$95,000 year
HybridToronto, Ontario, Canada
Job Summary
Design, develop, and maintain microservices-based applications using Java and Spring Boot while optimizing RESTful APIs for high performance and security. Write clean, efficient code and work with SQL databases, caching technologies, and cloud environments to manage end-to-end release processes including automated testing and Jenkins deployment. Conduct unit and integration testing, troubleshoot production issues, and collaborate with cross-functional teams to define and deliver new features. Participate in code reviews, mentoring, and knowledge-sharing sessions to support vulnerability handling and application security improvements.
Required Qualifications
- Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent experience
- 8+ years of hands-on experience developing RESTful APIs and microservices using Java/J2EE
- Strong experience with the Spring ecosystem, including Spring Boot, Spring MVC, Spring Cloud, Spring Security, and Spring Batch
- Expertise in Core Java, preferably Java 11 and Java 17
- Strong knowledge of multithreading, caching, synchronization, concurrency, and design patterns
- Experience in microservices/API development and migration from monolithic systems
- Hands-on experience with CI/CD pipelines and tools such as Jenkins, Docker, Kubernetes, Maven, and Gradle
- Proficiency with SQL and NoSQL databases such as PostgreSQL, MySQL, and Redis
- Solid knowledge of authentication and authorization mechanisms such as OAuth2 and JWT
- Experience with cloud platforms, especially Google Cloud Platform (GCP)
- Hands on production support experience including application monitoring, incident triage and root cause analysis
- Understanding of distributed systems and API gateways such as Spring Cloud Gateway, Kong, or similar tools
- Experience with web application security, vulnerability handling, and production issue management
- Strong debugging, performance optimization, and problem-solving skills
- Experience using development tools such as IntelliJ, PgAdmin, Postman, and Git
- Strong communication and collaboration skills
Desired Qualifications
- Experience with hybrid application development
- Knowledge of Google Cloud Storage (GCS)
- Familiarity with Agile methodologies and collaborative development environments
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