Senior Java Backend Engineer

2 weeks ago


Toronto, Ontario, Canada Flexton Inc. Full time $120,000 - $180,000 per year

Job Title:
Java Backend Engineer (API & Messaging Queues)

Location:
Toronto, CA-Hybrid (1 day onsite)

Experience
: 8+ Years

About the Role:

We are looking for a
Senior Backend Engineer
to join our client in
Toronto
(Hybrid). In this role, you will design, develop, and maintain
Java-based backend services
, including
RESTful APIs
and integrations with
messaging systems
like Kafka, ActiveMQ, or RabbitMQ. You'll work across the full development lifecycle—
development, testing, build, and deployment
—and collaborate with multiple stakeholders in an
Agile environment
to migrate legacy APIs to modern stacks and deliver new features. Strong communication skills and the ability to work independently are essential.

Requirements:

  • Experience:
    BS/MS in Computer Science or Engineering with 8+ years in
    Java, Spring Boot
    , and
    RESTful API
    development.
  • Messaging Queues:
    Hands-on experience with messaging systems (
    Kafka, ActiveMQ, RabbitMQ
    ).
  • Full Development Lifecycle:
    Skilled in end-to-end development, testing, build, and deployment.
  • Agile Environment:
    Ability to work independently in Agile teams with strong communication skills.

Project Overview:

  • Understand existing legacy APIs and migrate them to modern stacks, including adding new features as required.

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