Jobs in Canada

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Added 1 month ago
C
Signal and Power Integrity Engineer - New Grad
Ciena
Ottawa, ON
- $75,100 to $119,900 CAD / year
- Full-time
The must haves:
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Senior Software Engineer
BettingJobs
Toronto, ON
- Full-time
BettingJobs is hiring a Senior Software Engineer a global leader in online gaming, to join a new backend engineering team in Toronto.
Added 1 month ago
VC
Quality Engineer
V-Soft Consulting Group, Inc.
Mississauga, ON
- Contract
Experience creating and maintaining test plans, test cases and test scenarios
Added 1 month ago
GM
Senior Software Engineering - Protocol Operations & Trust
General Motors
Markham, ON
- Full-time
What You Must Have:
Added 1 month ago
TC
Senior Java Low Latency Developer
Tata Consultancy Services
Mississauga, ON
- $100,000 to $120,000 CAD / year
- Full-time
engineer with a strong background in low-latency trading systems, financial markets technology,
Added 1 month ago
eTrading Full Stack Engineering - Network
HSBC Global Services Limited
Toronto, ON
Engineer secures and resilient client-facing connectivity using appropriate routing segmentation and redundancy patterns and coordinate requirements testing and implementation with clients…
Added 1 month ago
VA
Computer Vision Engineer
Volatus Aerospace
Vaughan, ON
- Full-time
The role includes scene recognition, visual targeting, tracking, and visual positioning. Working with hardware, software, controls, and test teams, the engineer will integrate sensors and…
Added 1 month ago
VA
Controls & Dynamics Engineer
Volatus Aerospace
Vaughan, ON
- Full-time
Working with avionics, software, and flight test teams, the engineer will improve aircraft stability, control response, and mission performance through modelling, simulation, flight data…
Added 1 month ago
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Java Software Engineer
Dexian
Mississauga, ON
- Contract
Hands-on Programming: Write high-quality, production-ready, and performant Java code. Leverage advanced software engineering principles such as Object-Oriented Programming (OOP), SOLID…
Added 1 month ago
L
Senior QA Automation Engineer – Cypress
LTM
Mississauga, ON
- $103,554 to $115,200 CAD / year
- Full-time
Collaborate and partner closely with program managers development leads test leads and production support teams to ensure that software is tested to the highest quality
Added 1 month ago
QA Automation Engineer – SmartBear & Playwright
Capco
Toronto, ON
…technology teams to identify issues early, strengthen automated test coverage and support the delivery of reliable software throughout the development…
Added 1 month ago
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Software Engineer II - Angular / UI
TD
Toronto, ON
- Full-time
Easyweb team is looking to on-board a self-starting, high-performing frontend software engineer with a strong engineering mindset to help us grow in our online application.
Added 1 month ago
ZL
Lead of Launch Management 73621
ZF LIFETEC
Midland, ON
- Full-time
Ensure a functional, ergonomically sound, practical work cell design/layout/environment. Assist Tooling, Manufacturing engineer, Quality Engineer and the rest of the team with design and…
Added 1 month ago
VA
SITL Simulation Engineer
Volatus Aerospace
Vaughan, ON
- Full-time
We are seeking a SITL/Simulation Engineer to develop and maintain software-in-the-loop and simulation environments supporting the design, verification, and testing of a new aerospace…
Added 1 month ago
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Développeur Logiciel Principal.e, Plan de Contrôle - Laboratoire d'IA Souveraine
Mila - Institut québécois d'intelligence artificielle
Montreal, QC
- Full-time
As Staff Software Engineer, Control Plane, you will own the software through which administrators configure, govern, and understand the assembled stack. Reporting to the Senior Director of…
Added 1 month ago
Canada Tax Technology Group (CTTG) - Manager, AI Adoption & Enablement - Vancouver
EY
Vancouver, BC
To Qualify for the Role, You Must Have
Added 1 month ago
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Embedded Software Engineer Co-op/Intern
Lumentum
Ottawa, ON · Canada - Ottawa (Bill Leathem)
- Full-time
Position Title: Embedded Software Engineer Co-op/Intern
Added 1 month ago
YI
Support Engineer in Test (Bilingual – French/English)
YuJa Inc.
Toronto, ON · North York, Ontario
- From $60,000 CAD / year
- Full-time
1–2 years of customer service experience, with bilingual French and English proficiency(must have) · Rotational Shifts - Day/Afternoon/Night shifts
Added 1 month ago
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Staff Firmware Engineer
Nokia
Canada
- Full-time
Collaborate with optical, hardware, FPGA, software, manufacturing, and test teams for seamless integration.
Added 1 month ago
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DSP Firmware Engineer
Nokia
Canada
- Full-time
Develop and test embedded real‑time DSP and control systems for advanced applications, including programming Nokia's Optical Modem ASIC, performing MATLAB and C++ modeling for system…
Added 1 month ago
RD
Full Stack Engineer
Randstad Digital
Toronto, ON · Greater Toronto Area, Canada
- Full-time
Work Model: Hybrid (3 days per week in-office)
Added 1 month ago
BS
HIL Simulation Controls Engineer
Bartech Staffing
Toronto, ON · Greater Toronto Area, Canada
- $48 to $50 CAD / hour
- Contract
Must possess excellent communication skills
Added 1 month ago
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Spécialiste en intégration de systèmes, Laboratoire d'IA souveraine
Mila - Institut québécois d'intelligence artificielle
Montreal, QC
- Full-time
Added 1 month ago
Co-op, Electrical Engineer
Enedym Inc
Hamilton, ON
Collaborate with mechanical and software engineers to integrate electronics into motor assemblies and system-level test environments.
Added 1 month ago
Site Reliability Engineer, AI Observability
Appnovation Technologies
Toronto, ON · Montreal, QC
We’re looking for a Site Reliability Engineer to keep a shared observability platform for LLM-based applications running for a global life sciences client. The platform is built on Langfuse…

Dexian

Java Software Engineer

Mississauga, ON, Canada

Contract

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Job details

Job type: Contract
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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Jobs in Canada