Java Developer
- Mississauga, ON, Canada
Full-time
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Job details
- Job type
- Full-time
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- Posting language
- English
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Original job description
Role: Java Developer
Location: Mississauga, ON – Hybrid
Job Description:
Exp Range: 9 - 12 Years
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
More about this job
Responsibilities
Design, develop, and maintain Java microservices and REST APIs, while optimizing SQL queries and managing MongoDB schemas, indexes, and queries. Ensure service performance, scalability, security, and resilience; collaborate across business, architecture, QA, and DevOps teams; and support testing, deployments, and production issues.
Requirements
The role requires 9–12 years of experience and strong hands-on skills in Java 8, 11, or 17, Spring frameworks, microservices, REST APIs, Kafka, MongoDB, and OpenShift or AWS. Candidates should also have experience with SQL, database performance tuning, integrations, testing, CI/CD, monitoring, and secure coding.
Skills
- Java
- Spring Boot
- Spring MVC
- Spring Data
- Microservices
- REST APIs
- OpenAPI
- Swagger
- Apache Kafka
- MongoDB
- SQL
- OpenShift
- AWS
- JSON
- CI/CD
- Secure Coding
Visa sponsorship
Not detected in the job text
Categories
- Software
- Technology
- Engineering
Keywords
- Java
- Java 8
- Java 11
- Java 17
- Spring Boot
- Spring MVC
- Spring Data
- Microservices Architecture
- Service Decomposition
- API Contracts
- REST APIs
- JSON
- OpenAPI
- Swagger
- Apache Kafka
- Kafka Producers
- Kafka Consumers
- Partitioning
- MongoDB
- Document Modeling
- Indexing Strategies
- Aggregation Framework
- CRUD
- SQL
- OpenShift
- AWS
- CI/CD
- Unit Testing
- Resiliency Patterns
- Secure Coding