Java Developer
- Mississauga, ON, Canada
Full-time
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Job details
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- Full-time
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- Posting language
- English
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Original job description
Java Developer
Full Time
Mississauga, ON (Onsite)
Must Have Technical/Functional Skills:
Exp 8+ years.
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
Requires 8 or more years of experience and strong hands-on skills in Java 8, 11, or 17, Spring frameworks, microservices, REST APIs, Kafka, and MongoDB. Candidates should also have experience with SQL, OpenShift or AWS, REST integrations, performance tuning, and production support.
Skills
- Java
- Spring Boot
- Spring MVC
- Spring Data
- Microservices
- REST APIs
- JSON
- OpenAPI
- Swagger
- Apache Kafka
- MongoDB
- SQL
- OpenShift
- AWS
- CI/CD
- Secure Coding
Visa sponsorship
Not detected in the job text
Categories
- Software
- Technology
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
- Kafka Partitioning
- MongoDB
- Document Modeling
- Indexing Strategies
- Aggregation Framework
- SQL
- OpenShift
- AWS
- REST Integrations
- CI/CD
- Performance Tuning
- Secure Coding
- Production Support