Sr Java Developer

Summary

The Senior Java Developer will build frameworks and reusable components for payments technology teams, focusing on core Java, multithreading, and event-driven architecture. This is a hybrid role based in Toronto requiring deep expertise in high-performance application development.

Location : Toronto, ON (Hybrid-3/4 days onsite)

Interview Process

  • First Round: Virtual Interview
  • Final Round: F2F Interview

Job Summary

Seeking a strong Senior Java Developer with deep Core Java, Multithreading, and Concurrency expertise to build frameworks and reusable components supporting payments technology teams.

Key Skills

  • Strong Core Java – OOP, collections, memory management, exception handling.
  • Multithreading & Concurrency – thread creation/management, synchronization, locks, thread pools, race conditions, deadlocks, thread coordination.
  • Experience with Event-Driven Architecture and asynchronous processing.
  • Experience building scalable, high-performance applications/frameworks.
  • Payments/banking experience is preferred.

Priority: Core Java & Concurrency > Spring > Spring Boot > Event-Driven Architecture.

JBoss/WebSphere/application server experience is not a key requirement.

We are an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, citizenship status, age, disability, genetic information, protected veteran status, or any other characteristic protected by applicable law. https://www.e-verify.gov/sites/default/files/everify/posters/IER_RighttoWorkPoster.pdf

See also

Software Engineering jobs by country — openings, pay and top skills →

Tailor your CV for this role?

We couldn't check your fit for this role — add a CV to your profile to see it next time.

A new version of freehire is available