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Java Developer

Epsilon Solutions · Mississauga, ON

About Epsilon Solutions

127 open jobs
100100

Hiring signal

Actively hiring

Posted 4 days ago · still listed on the employer's own board · How we score

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In its favour

  • Posted 4 days ago
  • Still listed on the employer's own board

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Java Developer at Epsilon Solutions. We’ll keep it in your applied jobs, so you can see it later and be warned before applying to the same employer twice.

Java Developer

Full Time

Mississauga, ON (Onsite)

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

Skills

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