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Added 8 mins ago
J
Manager of Projects (MOP)
Jacobs
Calgary, AB
- $168,600 to $221,325 USD / year
- Full-time
…teams delivering projects from concept development through design, procurement, construction, and commissioning of new and modified high voltage transmission lines, substations, and…
Added 9 mins ago
Dev. Machine Learning Engineering II
Bell
Toronto, ON
Design, implement, and maintain infrastructure-as-code (IaC) for ML applications, ensuring scalability, reliability, and maintainability.
Added 9 mins ago
Industrial Engineer, Assembly
BRP
Valcourt, QC
Reporting to the Industrial Engineering Team Lead, the Industrial Engineer will play a key role in optimizing assembly line processes. They will actively contribute to improving…
Added 9 mins ago
MG
Principal Engineer / Architect
Matrix Global
Toronto, ON
- Full-time
We are seeking a highly skilled and hands-on Principal Engineer / Architect to lead the architecture, design, and delivery of next-generation cloud-native data and application platforms.…
Added 9 mins ago
MG
Java Engineer
Matrix Global
Toronto, ON
- Full-time
We are seeking a talented and motivated Java Engineer with strong experience in the Microsoft Azure ecosystem to join our growing engineering team. In this role, you will be responsible for…
Added 23 mins ago
JT
Product Development Engineer
jeans test
Engineer, BC
- Full-time
Added 23 mins ago
B
Dev. Machine Learning Engineering II
Bell
Toronto, ON
- Full-time
Design, implement, and maintain infrastructure-as-code (IaC) for ML applications, ensuring scalability, reliability, and maintainability.
Added 23 mins ago
HR
Electrical Installations Design Engineer –Rail Systems
Hitachi Rail
Toronto, ON
- $95,102 to $142,653 CAD / year
- Full-time
Electrical Installations Design Engineer – Rail Systems
Added 23 mins ago
HR
OCS Senior Engineer
Hitachi Rail
Mississauga, ON
- Full-time
Hitachi Rail (STS) is seeking an enthusiastic self-motivated Senior OCS (Overhead Catenary System) Engineer to work on our HMLRT project. As the successful candidate your ideas for…
Added 23 mins ago
AW
Software Development Engineer II, AWS Identity - IAM Identity Center
Amazon Web Services (AWS)
Toronto, ON
- Full-time
…fix them permanently while taking the learning back as you design the next…
Added 38 mins ago
G
Data Engineer
Galent
AB · Alberta, Canada
- Contract
Will be required to perform Unity Catalog table and volume design, as well as create and update data transformation notebooks in Python. Experience in Azure and Azure Data Factory is also…
Added 38 mins ago
K
Senior Engineer, Software Design
Kinectrics
Toronto, ON
- Full-time
Department: Design & Engineering Services (DES)
Added 39 mins ago
TI
Sr. Analytics Developer
TTI, Inc.
Toronto, ON
- Full-time
The Sr. Analytics Developer is responsible for leading the design, development, and optimization of analytics solutions and data models that empower decision-making across TTI Canada.
Added 39 mins ago
TI
AI Software Development Engineer in Test
Trimble Inc.
Kamloops, BC · Canada - Kamloops, BC
- Full-time
Shape the Future of Construction AI as an AI Software Developer Engineer in Test!
Added 54 mins ago
A
Information Technology - Lead Analytics Engineer, Distribution Technology
Aritzia
Delta, BC
- Full-time
The mission of the Distribution Technology department is to design, build, deliver, and operate scalable technology, data, analytics, and AI solutions that align with the strategic…
Added 54 mins ago
A
Information Technology - Senior Analytics Engineer/Analytics Engineer, Marketing & Transformation Technology
Aritzia
Vancouver, BC
- Full-time
The mission of the Marketing & Transformation Technology department is to design, build, deliver, and operate scalable technology, data, analytics, and AI solutions that align with the…
Added 1 hour ago
C
Senior Software Engineer, Elixir
Clarity
Remote, Canada
- $150,000 to $275,000 CAD / year
- Full-time
- Remote
As a Senior Engineer at Hiive, you will be a hands-on contributor to the backed system powering our platform, while building a user friendly interface. You will collaborate with technical…
Added 1 hour ago
C
Senior Software Engineer
Clarity
Remote, Canada
- Full-time
- Remote
As a Senior Full Stack Engineer, you will be a hands-on contributor to the frontend and backend apps powering our platform. You will learn Elixir on the job from your colleagues and…
Added 1 hour ago
AI Engineer Intern (Masters)
Electronic Arts
Vancouver, BC
As a Software Engineer with expertise in AI/ML systems and platform development, you will help create a scalable AI Platform.
Added 1 hour ago
RB
Senior AI/ML Engineer
Royal Bank of Canada
Toronto, ON
- Full-time
Collaborate with the team to design and implement AI solutions for anomaly detection and payments process automation.
Added 1 hour ago
JE
Intermediate Electrical Engineer
Juno Engineering Canada Inc.
Calgary, AB
- Full-time
Are you a professional engineer with a passion for innovation in electrical, instrumentation, and controls engineering? Juno Engineering Canada Inc. is seeking an Intermediate Electrical…
Added 1 hour ago
J
Manager of Projects (MOP)
Jacobs
Toronto, ON
- $168,600 to $221,325 USD / year
- Full-time
…teams delivering projects from concept development through design, procurement, construction, and commissioning of new and modified high voltage transmission lines, substations, and…
Added 1 hour ago
AE
D365 Functional Analyst - Human Resources
Associated Engineering
Calgary, AB
- Full-time
Experience working on Functional Design Documents (FDDs), configuration, process alignment, process documentation, test scripts, and user support materials.
Added 1 hour ago
J
Manager of Projects (MOP)
Jacobs
Winnipeg, MB
- $168,600 to $221,325 USD / year
- Full-time
…teams delivering projects from concept development through design, procurement, construction, and commissioning of new and modified high voltage transmission lines, substations, and…
Added 1 hour ago
AC
Mechanical Engineer
Amaris Consulting | Part of Mantu
ON · Ontario, Canada
- Full-time
As a Mechanical Designer / Mechanical Engineer, you will contribute to the design, development, and improvement of mechanical systems and components. You will work closely with…

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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