Position: Senior Java Backend Developer (Hybrid)

Location: Mississauga, ON

Job type: Full time/Permanent hiring

Senior Java Microservices Developer with experience in enterprise application development using Java 8/11/17, Spring Boot, and Microservices architecture . Responsible for designing scalable REST APIs, developing event-driven integrations using Kafka , and managing high-performance MongoDB data solutions. The role includes cloud deployments on OpenShift/AWS, production support, CI/CD enablement, and delivering secure, resilient, high-availability applications.

Must Have Technical/Functional Skills

Core Development

- Java (8/11/17) – strong hands-on experience
- Spring Boot, Spring MVC, Spring Data
- Microservices architecture (service decomposition, API contracts)
- REST APIs, JSON, OpenAPI / Swagger
- Kafka producer, consumer, partitioning
- MongoDb
- Openshift / AWS

Database & Data Layer

- MongoDB o Document modeling o Indexing strategies o Aggregation framework o CRUD & performance tuning





Integration & Messaging

- Experience with Kafka (preferred)
- REST based integrations with upstream/downstream systems

Roles & Responsibilities

- Design, develop, and maintain Java based microservices
- Implement RESTful APIs adhering to enterprise design standards
- Develop and optimize SQL queries (E2 level) for transactional and reporting use cases
- Design and manage MongoDB schemas, indexes, and queries
- Ensure high availability, scalability, and performance of microservices
- Apply exception handling, logging, monitoring, and resiliency patterns
- Collaborate with Business Analysts, Architects, QA, and DevOps teams
- Participate in code reviews, unit testing, and defect resolution
- Support CI/CD pipelines, deployments, and production issues
- Follow secure coding and compliance standards

📌 Senior Java Backend Developer (Hybrid) (Ontario)
🏢 Ku0026K Global Talent Solutions
📍 Ontario