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Added 1 min ago
B
TECH LEAD - GRC ENGINEERING
BDC
Montreal, QC
- Full-time
Lead and contribute to the continuous improvement of the InfoSec technical risk management framework, ensuring strong integration with data-driven insights.
Added 2 mins ago
SH
Enterprise Services (ES) Engagement Manager
Siemens Healthineers
Oakville, ON
- Full-time
You can lead and work effectively within a team, providing expertise, support, and mentorship when needed.
Added 2 mins ago
TU
Operations & Faculty Coordinator
The University of British Columbia
Kelowna, BC
- $4,981 to $5,713 CAD / month
- Full-time
…holders on purchasing policies; submits and tracks Visa card application/deactivation…
Added 2 mins ago
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Postdoctoral Fellow
RI-MUHC | Research Institute of the MUHC | #rimuhc
Montreal, QC
- Full-time
Our laboratory, lead by Dr. Stella Daskalopoulou, conducts highly translational cardiovascular research, connecting patient-based clinical studies and deeply phenotyped biobanks with…
Added 2 mins ago
M
Solution Architect
Mindtris
Fredericton Junction, NB
- Full-time
We are seeking an Application / Solutions Architect to lead the design and development of a Personal Health Number Registry, provide solution architecture guidance and direction to staff…
Added 2 mins ago
A
Software Developer - Games
Affinity
Montreal, QC
- Full-time
On behalf of our client, Affinity is looking for a Senior Software Developer – Games who will lead the development of high-performance gaming applications with a strong focus on low-level…
Added 2 mins ago
AO
Electrical Engineer
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Saanichton, BC
- $87,500 to $104,000 CAD / year
- Full-time
…have customers on all seven continents. We have a 70+ person team of employees that care deeply about customer outcomes. In our market, we are known for two things: 1) Going to the ends of…
Added 2 mins ago
AO
Electrical Engineer
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- $87,500 to $104,000 CAD / year
- Full-time
…have customers on all seven continents. We have a 70+ person team of employees that care deeply about customer outcomes. In our market, we are known for two things: 1) Going to the ends of…
Added 2 mins ago
CO
Manager, Digital Solutions
City of Saint John
Saint John, NB
- Full-time
The position provides oversight for application lifecycle management (on-premises and SaaS) including major systems administration (e.g. ERP, Asset Management, ePermitting), application, AI…
Added 2 mins ago
C
Technical Support Specialist I
Connexall
Toronto, ON
- Full-time
Reporting to the Team Lead of Technical Support and Customer Experience, the Technical Support Specialist I is a primary technical resource for our customers. The successful candidate will…
Added 2 mins ago
CO
Application & Integration Technical Analyst
City of Saint John
Saint John, NB
- Full-time
Under the direction of the designated IT Manager, the Application and Integration Technical Analyst is a technical lead responsible for system architecture, data strategy, and integration…
Added 20 mins ago
MU
Student Affairs Administrator
McGill University
Montreal, QC · Duff Medical Bldg.
- Full-time
…records, registration and exam activities, as well as provide the integration of McGill's values, standards, and goals with respect to student life and learning into University policies,…
Added 20 mins ago
MU
Associate Director Operations and Systems
McGill University
Brown Student Serv.
- Full-time
Leading a team of professional and administrative staff, the Associate Director ensures high-quality service for students and employers, while overseeing financial, human, and physical…
Added 20 mins ago
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Analyste de marché - Market Analystcan you rewrite t
Altus Group
Montreal, QC
- Full-time
Participer à des initiatives d’automatisation, d’intégration de l’IA et d’amélioration continue des processus.
Added 33 mins ago
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Registered Nurse - Wound Care - Inpatient Surgical - Casual (2026-217)
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- Temporary
We need a Registered Nurse – Wound Care to join our Inpatient Surgical team! You will play a role in delivering exceptional patient care as part of a collaborative team. The Inpatient…
Added 33 mins ago
LA
Lead Solution Architect
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Toronto, ON
- Full-time
Looking for a rewarding career where you can share your expertise as a Lead Solution Architect? Seize this opportunity to embody our organizational values within our Information Services…
Added 33 mins ago
C
Lead Enterprise Architect – Payments & Security
CGI
Toronto, ON
- Full-time
Lead integration architecture across source systems, payment platforms, and financial institutions.
Added 33 mins ago
I
Senior Software Developer
IBM
Ottawa, ON
- $121,550 to $171,550 CAD / year
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As an Application Developer, you will develop, support, and maintain applications.
Added 35 mins ago
GM
Senior Software Developer
General Motors
Markham, ON · Oshawa, ON
- Full-time
As part of the application process, Artificial Intelligence will be used in the hiring process for this role
Added 35 mins ago
GM
Senior Data Engineering, Vehicle Data Operations
General Motors
Markham, ON · Oshawa, ON
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Added 35 mins ago
GM
Senior Software Engineering, Vehicle Data Platform
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Markham, ON · Oshawa, ON
- Full-time
…data and configuration between vehicle ECUs and the cloud. Our team is the only team within General Motors that delivers software on every compute module the company has. Our software is…
Added 50 mins ago
MH
Implementations Manager
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Toronto, ON
- $105,000 to $145,000 CAD / year
- Full-time
…in North America. We’re hiring a Implementation Manager to lead these enterprise rollouts and establish how we deliver them as we…
Added 50 mins ago
ZT
Senior Manager, Technical Software Program Manager
Zebra Technologies
Mississauga, ON · CAN - Mississauga, Canada
- Full-time
…collaborate to deliver on our purpose. Here you are part of a team pushing boundaries today to redefine the work of tomorrow for organizations, their employees, and those they…
Added 50 mins ago
Spécialiste en Ingénierie Mécanique - Centre de Données, Mechanical Engineering Specialist – Data Centers, Data Center Field Engineering
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Varennes, QC
Interface with internal data center operations team, data center design engineering team, server hardware team, environmental health and safety team to promote standards that maintain…
Added 1 hour ago
C/
Manager, IT Service Management/Gestionnaire, Gestion des services de TI
CATSA / ACSTA
Ottawa, ON
- $105,978 to $132,472 CAD / year
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…with architecture and planning), configuration / development, integration and data migration, testing and validation, deployment and transition to…

Dexian

Java Software Engineer

Mississauga, ON, Canada

Contract

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Job details

Job type: Contract
Apply by: Nov 5, 2026
Experience: Experience: 8+ years of professional experience in application development or systems analysis, with a heavy emphasis on Java-based backend architectures.
Posting language: English
Posted: Oct 6, 2026

Original job description

Java Developer

Mississauga ON – 3days/week onsite

Contract to Hire – 2 rounds interview first virtual second onsite in Mississauga

Position Overview

We are seeking a highly skilled and passionate Senior Java Backend Developer to join our engineering team as a Senior Individual Contributor. In this role, you will be responsible for designing, building, and optimizing high-performance, robust, and scalable backend applications specialized in batch and real-time data processing.

As a senior technical leader with a strong programming background, you will drive the architecture and implementation of complex distributed systems. You will play a crucial role in analyzing system requirements, designing data flows, and ensuring clean, maintainable, and highly efficient code. This role demands deep technical expertise in Core Java, concurrency, memory management, and modern distributed data frameworks, without the burden of people management responsibilities.

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Key Responsibilities

Systems Analysis & Architecture: Analyze complex business requirements and translate them into highly scalable, reliable, and secure backend systems designs. Evaluate trade-offs between different data architecture patterns (e.g., microservices vs. event-driven).
Hands-on Programming: Write high-quality, production-ready, and performant Java code. Leverage advanced software engineering principles such as Object-Oriented Programming (OOP), SOLID design principles, and design patterns.
Technical Project Delivery: Lead the technical implementation and delivery of critical, complex backend and data-processing initiatives. Partner with cross-functional teams to ensure successful project deployment from conception through production.
Subject Matter Expertise (SME): Act as the resident Subject Matter Expert (SME) in high-throughput data processing, stream processing, or JVM performance tuning. Provide guidance on industry best practices and emerging backend technologies.
Performance Optimization: Diagnose, profile, and resolve complex performance bottlenecks, memory leaks, and concurrency issues in high-volume distributed environments.
Quality Assurance & Best Practices: Champion code quality through Test-Driven Development (TDD), comprehensive unit/integration testing, and rigid code review standards.
Mentorship: Provide technical mentorship and architectural guidance to other engineers on the team, fostering a culture of technical excellence and clean code.

Technical Skills & Qualifications

Required Qualifications:

Experience: 8+ years of professional experience in application development or systems analysis, with a heavy emphasis on Java-based backend architectures.
Core Java Mastery: Deep, expert-level understanding of Core Java (Java 11/17/21), including advanced multithreading, concurrency models, Java memory model (JVM garbage collection, heap analysis), and Collections API.
Data Processing & Streaming: Extensive hands-on experience building distributed data processing systems, ETL pipelines, and real-time streaming architectures using tools like Apache Kafka, Apache Spark, Flink, or Hadoop.
Framework Expertise: Strong experience with the Spring Ecosystem (Spring Boot, Spring Cloud, Spring Data, Spring Security) and ORM frameworks (Hibernate/JPA).
Database Management: Proficiency in designing schemas and writing optimized queries for both relational databases (e.g., PostgreSQL, MySQL, Oracle) and NoSQL stores (e.g., Cassandra, MongoDB, Redis).
Distributed Systems: Comprehensive understanding of distributed system design patterns, consensus protocols, caching strategies, and API design (RESTful APIs, gRPC).
CI/CD & DevOps: Practical experience with containerization (Docker, Kubernetes), continuous integration/continuous deployment tools (Jenkins, GitLab CI, or GitHub Actions), and infrastructure-as-code principles.
Testing: Strong advocate for testing frameworks such as JUnit, Mockito, and integration testing tools.

Preferred Qualifications:

Experience with cloud platforms (AWS, Azure, or GCP), specifically managed database and container services.
Experience in financial services, banking technology, or large-scale enterprise transaction systems.

Familiarity with Unix/Linux environments, shell scripting, and network configurations.

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More about this job

Responsibilities

Design, build, and optimize scalable Java backend systems for batch and real-time data processing, including leading delivery of complex distributed-system initiatives. Diagnose performance, memory, and concurrency issues; uphold testing and code-quality practices; and provide technical mentorship to fellow engineers.

Requirements

Requires 8+ years of application development or systems analysis experience, with expert-level Core Java and hands-on experience in distributed data processing, streaming, Spring, databases, and distributed systems. Also requires practical experience with containerization, CI/CD, and testing; cloud platforms and financial-services experience are preferred.

Skills

Core Java
Multithreading And Concurrency
JVM Performance Tuning
Apache Kafka
Apache Spark
Apache Flink
Spring Boot
Spring Cloud
Hibernate And JPA
Relational And NoSQL Databases
Distributed Systems
RESTful APIs And gRPC
Docker And Kubernetes
CI/CD
JUnit And Mockito
Test-Driven Development

Visa sponsorship

Not detected in the job text

Keywords

Java
Java 11/17/21
Object-Oriented Programming
SOLID Principles
Design Patterns
Multithreading
Java Memory Model
Garbage Collection
ETL Pipelines
Real-Time Streaming
Apache Kafka
Apache Spark
Apache Flink
Hadoop
Spring Boot
Spring Cloud
Spring Data
Spring Security
Hibernate
JPA
PostgreSQL
MySQL
Oracle
Cassandra
MongoDB
Redis
Distributed Systems
RESTful APIs
gRPC
Docker

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