Senior Java Engineer to build Java REST APIs and event-driven microservices using Kafka, Spring Boot, Docker, and Kubernetes - Job Type: Contract
Positions to fill: 1
Start Date: Sep 07, 2026
Job End Date: Sep 04, 2027
Pay Rate: Hourly: Negotiable
Job ID: 154334
Location: Toronto or Waterloo (Primary location is Waterloo. Remote candidates will be considered however must be in EST time zone)
*Needs to be eligible for Reliability Clearance (Should have lived in Canada for 5 consecutive years)
Join a platform engineering initiative building a new API and microservices ecosystem from the ground up within a large financial services environment. This role focuses on Java REST APIs, Kafka-based event-driven services, and microservices deployed to Kubernetes using Docker in on-prem and AWS environments. The position offers exposure to business processes and technology initiatives supporting long-term platform modernization.
Must Haves More than 5 years of development skills and progressive information technology experience with full application development life cycle and systems integration experience
Strong working experience with Java APIs, REST, SOAP, Spring, JSON, Open API, Swagger, web services and web hosting technologies
1+ years experience using DevOps tools (Jenkins, Artifactory, BitBucket, Maven, CDD/Ansible)
1+ years experience with Kafka and/or Kafka Streams (with KSQL)
Customer obsession – customers are at the center of all we do
Strong analytical and problem-solving skills with ability to analyze situations/problems systematically and deliver effective right‑sized solutions in a timely manner




Experience with managing and coordinating team activities in a multi‑site workplace.
Strong organizational and planning skill
Excellent verbal and written communications skills
Nice to Have Experience with Kubernetes, Okta, AWS, MongoDB
Experience with Group Retirement products and business domains
Working knowledge of Business Rule Management Systems such as IBM’s ODM
Experience with WebSphere, DB2, Java UI: Swing, Spring MVC, SonarQube for static code analysis
Exposure to Enterprise Service Bus (ESB) integration architectures and technologies
Additional Requirements: Periodic weekend / after‑hours work may be required to support project implementations and system upgrades
Occasional travel between office locations may be required depending on work assignments
Possibility of on‑call support maybe required
Responsibilities Lead and participate in the design, development, deployment of Java REST web service APIs and microservices using Docker and Kubernetes.
Ensure service designs follow approved architecture.
Learn and incorporate emerging API technologies into our APIs.
Use and enhance our Dev Ops tools and processes for CD/CI, these tools include Jenkins, Artifactory, BitBucket, Gradle, Continuous Delivery Director, Ansible
Mentor and support colleagues in their capabilities
Identify defects in services, debug and provide effective solutions to resolve the defects.
When required, support existing APIs built on older technologies e.g., Websphere, DB2, Java UI etc.
Duration: Until Sep 4th 2027
Disclaimer:
AI may be used in evaluating candidates.
This posting is for an existing vacancy.

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📌 Senior Java Engineer to build Java REST APIs and event-driven microservices using Kafka, Spring Boot (Quebec City)
🏢 S.i. Systems
📍 Quebec City