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Added 19 days ago
UM
Senior Software Tester
Ultra Maritime
Dartmouth, NS
- Full-time
The Software Tester will be responsible for modernizing Ultra’s software test strategy that spans Linux-based virtualized systems, physical test sets, and Docker-based software deployments.…
Added 19 days ago
LI
Terraform Developer
LanceSoft, Inc.
Halifax, NS
- Contract
We are looking for a Terraform Developer / Cloud Infrastructure & Data Engineering Specialist to join the Aperture Data Insights team within Quantitative & Technology Services (QTS).
Added 19 days ago
IS
Software Development Manager
Intellijoint Surgical
Kitchener, ON
- Full-time
The Software Development Manager will lead development teams responsible for native macOS applications and web-based applications. Working closely with Product Management, Project…
Added 19 days ago
C
Backend Java Developer, Vice President
Citi
Mississauga, ON
- Full-time
…innovative solutions to bankers and clients by applying latest engineering standards, agile operating model and DevOps…
Added 19 days ago
M
Senior Full Stack Java Engineer - Workforce Management (WFM)
Miratech
Canada
- Full-time
…and high-volume operational data into maintainable, auditable software. Experience with Customer Experience (CX) platforms is a strong advantage; practical knowledge of WFM processes or…
Added 19 days ago
BS
ServiceNow Developer
Brock Solutions
Cambridge, ON · Greater Kitchener-Cambridge-Waterloo Metropolitan Area
- Full-time
Brock Solutions is an engineering solutions and professional services company specializing in the design, build, and implementation of Realtime operational solutions for…
Added 19 days ago
T
Sr. Platform Engineer, TD Securities
TD
Toronto, ON
- Full-time
…platform engineer, you will be working on leading platform engineering team to pinpoint the system bottleneck, providing tangible solutions quickly to resolve platform issues, automating…
Added 19 days ago
KC
Site Reliability Engineer
KPMG Canada
Vaughan, ON
- Full-time
…reliability into systems by working closely with the development DevOps engineers, security teams, IT-operations teams (Canadian and Global) as well as our advisory client facing…
Added 19 days ago
HB
Platform Engineer
Hunter Bond
Montreal, QC
- Full-time
Collaborate closely with software engineering teams to deliver resilient, high-performance infrastructure.
Added 19 days ago
TC
Production Support Mobile Developer
Tata Consultancy Services
Toronto, ON
- $100,000 to $120,000 CAD / year
- Full-time
…in 1968, TCS has upheld the highest standards of innovation, engineering excellence and customer…
Added 19 days ago
TC
Senior Java Low Latency Developer
Tata Consultancy Services
Mississauga, ON
- $100,000 to $120,000 CAD / year
- Full-time
We are seeking an experienced Senior Java Low Latency Developer to join our Payments
Added 19 days ago
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Senior Cloud Systems Engineer (CI/CD & Data Platform)
Numeris
Toronto, ON
- Full-time
Build and maintain enterprise CI/CD pipelines using GitHub Actions, Azure DevOps, GitLab.
Added 19 days ago
C
Software Developer Coop
CAE
Montreal, QC
- Full-time
As an intern within the Developer Platform team, you may contribute to different types of initiatives related to agentic AI, automation, development platforms, and the improvement of…
Added 19 days ago
D
Java Software Engineer
Dexian
Mississauga, ON
- Contract
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…
Added 19 days ago
C
Stagiaire - Spécialiste de données-EN
CAE
Montreal, QC
- Full-time
Expérience en utilisation de pipelines de données automatisées et d’outils de gestion du flux de travail : DevOps, ARM, Data Factory, Airflow.
Added 19 days ago
Principal Technology Architect
Infosys
Canada
Demonstrated experience with AI-enabled SDLC transformation, including the adoption of AI capabilities across software engineering and delivery practices.
Added 19 days ago
NT
C# / C++ Developpeur (Real Time expert)
Nöord Technologies
Montreal, QC
- Full-time
Curiosity: Keen interest in modern software engineering practices, cloud patterns, and emerging technologies.
Added 19 days ago
C
Software Developer Coop-EN
CAE
Montreal, QC
- Full-time
As an intern within the Developer Platform team, you may contribute to different types of initiatives related to agentic AI, automation, development platforms, and the improvement of…
Added 19 days ago
Sr Associate Platform Engineer
Scotiabank
Toronto, ON
Contributes to the overall success of the Senior Associate Cloud Platform Engineering function by ensuring long‑term technical vision and roadmap is defined and maintained, focusing on…
Added 19 days ago
GM
Software Engineering Manager - Vehicle Data Platform
General Motors
Oshawa, ON · Markham, ON
- Full-time
The Data Engineering organization at General Motors is building a unified Vehicle Data Platform that moves data and configuration between vehicle ECUs and the cloud. Our team is the only…
Added 19 days ago
Bilingual Senior Specialist, Software Engineering (Environment Management)
CMHC - SCHL
Ottawa, ON · Montreal, QC
Join the Platform Engineering team, in the Senior Specialist, Software Engineering & Environment Management position, where we’re modernizing how CMHC builds and operates software…
Added 19 days ago
Dynamics/Powerplatform engineer
Capgemini
Montreal, QC
Experience with Azure, Azure DevOps for CI/CD and C#.net.
Added 19 days ago
Senior Java Developer – Application Modernization
Capco
Toronto, ON
Capco is looking for a Senior Java Developer to join a major technology modernization initiative focused on upgrading business-critical legacy applications and their supporting technology.
Added 19 days ago
AI
Senior AWS Data Engineer
Apptoza Inc.
Toronto, ON
- Contract
…strong individual contributor with deep expertise in AWS data engineering, ETL development, and real-time data streaming…
Added 19 days ago
YI
Software Developer - Internal Automation
YuJa Inc.
Toronto, ON · North York, Ontario
- $80,000 to $90,000 CAD / year
- Full-time
We're looking for a Software Developer - Internal Tools who combines strong software engineering fundamentals with hands-on experience managing internal systems and infrastructure. In this…

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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