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Added 25 mins ago
GC
Data Engineer
GEI Consultants, Inc.
Guelph, ON
- $90,000 to $150,000 CAD / year
- Full-time
The Data Engineer plays a hands-on role by preparing and integrating the data foundations that AI solutions depend on. This includes building ingestion pipelines, managing data stores,…
Added 25 mins ago
OC
Metallurgy Supervisor (Permanent)
Orano Canada
SK · Saskatchewan, Canada
- Internship
Provide input to the annual budgeting process, including identification of infrastructure and training which aligns with group objectives and personal development goals
Added 56 mins ago
C
Field Services Engineer
Cognizant
Vancouver, BC
- Full-time
Cognizant’s Cloud, Infrastructure, and Security Services Practice (CIS), is all about accepting digital transformation by driving core modernization holistically across layers. We help…
Added 1 hour ago
CE
Staff Site Operations Engineer
Cenovus Energy
Lloydminster, SK
- Full-time
As a Staff Operations Engineer, you will play a key role in optimizing the performance, reliability, and profitability of Cenovus’s surface assets within the Lloydminster Thermal district.…
Added 1 hour ago
AC
AWS DevOps Engineer
Adastra Corporation
Markham, ON
- Full-time
Adastra is looking for an Associate DevOps Engineer to join our AWS Practice and support cloud modernization, data platform, and migration initiatives. The role will focus on building and…
Added 2 hours ago
M
Software Engineer - Front End
Microsoft
Vancouver, BC
- Full-time
The Observability Experiences team is hiring a Software Engineer 2 to build the next generation of tools and technologies for monitoring services and infrastructure in Azure and Microsoft…
Added 2 hours ago
H
eTrading Full Stack Engineering - Compute
HSBC
Toronto, ON
- Full-time
Join our eTrading infrastructure engineering team in Markets & Securities Services Information Technology, building deterministic, secure and highly available compute platforms supporting…
Added 2 hours ago
DevOps Engineer
Varonis
Canada
The Company: Varonis (Nasdaq: VRNS) is a leader in data security, fighting a different battle than conventional cybersecurity companies. Our cloud-native Data Security Platform continuously…
Added 3 hours ago
B
Electrical Building Technician
BPA
Longueuil, QC
- Full-time
BPA is more than an engineering firm - it’s a passionate team shaping the buildings and infrastructure of tomorrow. With offices across Canada, our expertise in sustainable design and…
Added 3 hours 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 3 hours ago
MG
Java Engineer
Matrix Global
Toronto, ON
- Full-time
The ideal candidate is a hands-on Intermediate Java Engineer who combines strong Java development skills with practical Azure cloud and DevOps experience. Candidates should be comfortable…
Added 3 hours ago
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Security Engineer
LiveKit
Canada
- Full-time
Our customers trust us with audio, video and data belonging to their own end users, so a security failure on our side puts their data and their business at risk. We are hiring Security…
Added 3 hours ago
AW
Software Development Engineer II, AWS Identity - IAM Identity Center
Amazon Web Services (AWS)
Toronto, ON
- Full-time
AWS has the most services and more features within those services, than any other cloud provider–from infrastructure technologies like compute, storage, and databases–to emerging…
Added 4 hours ago
OC
Metallurgy Supervisor
Orano Canada
SK · Saskatchewan, Canada
- $134,550 to $158,300 CAD / year
- Full-time
Provide input to the annual budgeting process, including identification of infrastructure and training which aligns with group objectives and personal development goals
Added 4 hours ago
Metallurgy Supervisor
Orano
SK · McClean Lake, Saskatchewan
Provide input to the annual budgeting process, including identification of infrastructure and training which aligns with group objectives and personal development goals
Added 4 hours 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 4 hours ago
SI
Staff Cloud Security Engineer
Scribd, Inc.
Toronto, ON · Vancouver, BC
- Full-time
Our Security Engineering team protects Scribd's applications and cloud infrastructure. We take a proactive, shift-left approach, integrating security throughout the software development…
Added 4 hours ago
AI Engineer Intern (Masters)
Electronic Arts
Vancouver, BC
The Infrastructure and Platform Services (IPS) team serves as the backbone of EA's global ecosystem, supporting the creation of exceptional games and immersive player experiences. We offer…
Added 5 hours ago
RH
Engineering Superintendent
Robert Half
Quesnel, BC
- Full-time
Develop and execute strategic plans for capital, infrastructure, and major expense projects.
Added 5 hours ago
NV
Databricks Architect (ID#5473)
New Value Solutions
Vancouver, BC · Greater Vancouver, BC
- Contract
The successful candidate will work with data engineering, cloud infrastructure, security, governance, and business teams to establish an enterprise-grade Databricks environment that…
Added 5 hours ago
A
Cyber Security Engineer
Altis
Vancouver, BC · Greater Vancouver, BC
- $90,000 to $120,000 CAD / year
- Full-time
In this role, you'll collaborate closely with Infrastructure, Engineering, and IT teams while working across vulnerability management, cloud security, identity, compliance, AI governance,…
Added 6 hours ago
ES
Cloud Engineer
Euna Solutions
ON · Oakville, Ontario
- Full-time
Euna Solutions' cloud infrastructure team is responsible for the security, reliability, and efficiency of the systems that power critical SaaS products used by public sector organizations.…
Added 6 hours ago
M
Technical Architect
Mphasis
Toronto, ON
- Contract
MLOps & DevOps: Vertex AI Pipelines, MLflow, CI/CD for AI Applications, Model Governance & Monitoring, Infrastructure as Code (Terraform)
Added 6 hours ago
A
Graduate Building Systems Engineer (Available 2027)
Arup
Toronto, ON
- Full-time
Keen curiosity about pursuing a career in the field of ITC, Electronic Security, and/or Audio-Visual through technology infrastructure and systems design and consulting in the built…
Added 6 hours ago
MC
Senior Project Manager
MENARD Canada Inc.
Vancouver, BC
- Full-time
…delivers innovative and sustainable geotechnical solutions for infrastructure, industrial, commercial, energy and residential…

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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