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PT
Product Owner
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ON · Ontario, Canada
- Full-time
Experience with customer-facing APIs, developer platforms, or data integration solutions.
Added 2 hours ago
KG
Senior Java Developer (Core Java)
K&K Global Talent Solutions INC.
ON · Ontario, Canada
- Full-time
We are seeking a highly experienced Senior Java Developer to drive the architectural design, development, and scaling of our enterprise-grade microservices and distributed systems. In this…

K&K Global Talent Solutions INC.

Senior Java Developer (Core Java)

ON, Canada
Ontario, Canada, Canada

Full-time

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Job details

Job type: Full-time
Apply by: Dec 9, 2026
Experience: Experience: 6–10 years of progressive, hands-on enterprise software engineering experience.
Posting language: English
Posted: Nov 9, 2026

Original job description

Position: Senior Java Developer

Location: Onsite- Mississauga, ON

Job type: Full-time/Permanent hiring

We are seeking a highly experienced Senior Java Developer to drive the architectural design, development, and scaling of our enterprise-grade microservices and distributed systems. In this critical backend role, you will be responsible for building high-performance, resilient application ecosystems that securely process complex business logic and integrate seamless RESTful APIs across the enterprise.

You will act as a core technical anchor, collaborating deeply with architects, business analysts, and cross-functional engineering teams to translate complex requirements into robust, production-ready software.

Core Responsibilities

Microservices Development: Architect, build, and maintain scalable, high-throughput microservices leveraging Java, Spring Boot, and cloud-native design patterns.
API & System Integration: Design, implement, and consume secure, highly performant RESTful APIs to integrate internal platforms with external enterprise systems.
Data & Messaging Orchestration: Optimize application interactions with relational databases and event-driven architectures utilizing distributed messaging systems.
Code Quality & Reliability: Lead by example through robust unit testing, system integration testing, strict code reviews, and proactive application performance tuning.
CI/CD & DevOps Alignment: Implement and support continuous integration and deployment pipelines to ensure rapid, secure production releases.

Required Technical Skills

Experience: 6–10 years of progressive, hands-on enterprise software engineering experience.
Core Java Mastery: Elite proficiency in Core Java, including modern language features (Java 8, 11, and 17).
Spring Ecosystem Expertise: Deep, production-grade knowledge of Spring Boot, Spring MVC, Spring Security, and Spring Data JPA.
Distributed Architecture: Proven experience designing and operating Microservices Architectures and handling distributed transactions.
Databases & Messaging: Strong command of SQL databases (PostgreSQL, Oracle, or SQL Server) alongside event streaming/messaging tools (Kafka, RabbitMQ, or JMS).
Foundational Engineering: Complete fluency in Git-based workflows, Unix/Linux environments, and Object-Oriented Design Patterns.

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More about this job

Responsibilities

Architect, develop, and maintain scalable Java microservices and secure, high-performance REST APIs that integrate enterprise systems. Optimize database and messaging interactions, uphold software quality through testing and code reviews, tune application performance, and support CI/CD pipelines.

Requirements

Requires 6–10 years of hands-on enterprise software engineering experience and strong proficiency in Core Java, including Java 8, 11, and 17, and the Spring ecosystem. Candidates should have experience with microservices, distributed transactions, SQL databases, messaging systems, Git workflows, Unix/Linux, and object-oriented design patterns.

Skills

Core Java
Java 8, 11, And 17
Spring Boot
Spring MVC
Spring Security
Spring Data JPA
Microservices Architecture
RESTful APIs
Distributed Systems
Distributed Transactions
SQL
PostgreSQL
Oracle
SQL Server
Kafka
RabbitMQ

Visa sponsorship

Not detected in the job text

Keywords

Core Java
Java 8
Java 11
Java 17
Spring Boot
Spring MVC
Spring Security
Spring Data JPA
Microservices
Distributed Systems
Distributed Transactions
RESTful APIs
SQL
PostgreSQL
Oracle
SQL Server
Kafka
RabbitMQ
JMS
Git
Unix/Linux
Object-Oriented Design Patterns
Unit Testing
System Integration Testing
Code Reviews
Performance Tuning
CI/CD
Cloud-Native Design Patterns
Enterprise Software Engineering

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