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Added 22 mins ago
B
Construction administrator
BPA
Halifax, NS
- Full-time
We are seeking a skilled and detail-oriented Construction Administrator / Field Engineer to support the delivery of electro-mechanical building systems projects. This role is ideal for a…
Added 37 mins ago
CG
Senior Engineer, Mine (Mount Milligan)
Centerra Gold Inc.
Fort St. James, BC
- Full-time
We have an exciting opportunity for an Senior Engineer, Mine to join our Mount Milligan Mine (MTM) operations site.
Added 2 hours ago
R&
Level IV Quality Engineer (QE)
Robertson & Company Ltd.
Toronto, ON
- Contract
Robertson is seeking a skilled Level IV Quality Engineer (QE) to join our client in support of an existing vacancy.
Added 2 hours ago
Manager, Project Execution
Toronto Hydro
Toronto, ON
Leads short-interval planning and review meetings with vendors to ensure safety management, adherence to standards and quality, schedule attainment and resourcing
Added 3 hours ago
S
Electrical and Instrumentation Engineer
SPECTRAFORCE
Oakville, ON
- $53 to $63 CAD / hour
- Contract
Job Title: Electrical & Instrumentation Engineer
Added 4 hours ago
PC
Project Manager
Perma Corp
AB · Edmonton, AB
- Full-time
The successful candidate will own each project from contract award through final close-out, coordinating between estimating, drafting, fabrication, shipping, and field installation while…
Added 4 hours ago
PC
Ingénieur(e) en maintien de la circulation
Parsons Corporation
Montreal, QC
- Full-time
Added 5 hours ago
IG
Business Intelligence Engineer
Insight Global
Toronto, ON
- $40 to $46 CAD / hour
- Contract
Insight Global is looking for a BI Engineer to join a leading bank in Toronto to join a top bank in Toronto on a contract basis. The purpose of this position is to design, develop, and…
Added 7 hours ago
TM
Engineer in Training (EIT)
Thyssen Mining
Regina, SK
- Full-time
Thyssen Mining is currently seeking an EIT (Engineer in Training) to work fulltime in our Dundurn or Regina, SK office.
Added 7 hours ago
JE
Senior Instrumentation Engineer
Juno Engineering Canada Inc.
Calgary, AB
- Full-time
We are seeking a full-time, permanent or contract Senior Instrumentation Engineer or Technologist with 10 or more years of industrial instrumentation experience, including at least 5 years…
Added 7 hours ago
B
Power Engineer - 4th Class
BGIS
Devon, AB
- Full-time
…maintenance management database. Ensures work completed meets quality, contract response, and all other…
Added 8 hours ago
UK
Utilities Engineer
Utilities Kingston
Kingston, ON
- Full-time
The Utilities Engineer leads the delivery of multi‑disciplinary capital projects within the water and wastewater utilities, including planning, design, and contract administration. The role…
Added 8 hours ago
IG
Business Intelligence Engineer
Insight Global
Toronto, ON
- $46 to $50 CAD / hour
- Contract
Insight Global is looking for a BI Engineer to join a leading bank in Toronto to join a top bank in Toronto on a contract basis. The purpose of this position is to design, develop, and…
Added 8 hours ago
AE
Intermediate Civil Engineer
Associated Engineering
Calgary, AB
- Full-time
Acting as Engineer of Record for designs, technical reports, cost estimates, technical specifications and construction contract documents for work completed independently or by others…
Added 8 hours ago
AE
Civil Engineer
Associated Engineering
Calgary, AB
- Full-time
Acts as Engineer of Record for designs, technical reports, cost estimates, technical specifications and construction contract documents for work completed independently or by others through…
Added 8 hours ago
AE
Stormwater Engineer
Associated Engineering
Calgary, AB
- Full-time
Acting as Engineer of Record for designs, technical reports, cost estimates, technical specifications and construction contract documents for work completed independently or by others…
Added 8 hours ago
AE
Senior Bridge Engineer
Associated Engineering
Calgary, AB
- Full-time
…Company is seeking an experienced and dedicated Senior Bridge Engineer to join our team in our Calgary office. In this role you will be responsible for carrying out detailed technical work…
Added 8 hours ago
SO
Sr. Software Engineer
Spirit Omega Inc.
Remote, Canada
- $77 to $85 CAD / hour
- Contract
- Remote
Collaborate with QA, data engineering, and platform teams to ensure solution quality and delivery readiness.
Added 8 hours ago
IG
Business Intelligence Engineer
Insight Global
Toronto, ON
- $40 to $45 CAD / hour
- Contract
Insight Global is looking for a BI Engineer to join a leading bank in Toronto to join a top bank in Toronto on a contract basis. The purpose of this position is to design, develop, and…
Added 8 hours ago
B
Project Cost Engineer
Brunel
Calgary, AB
- Contract
We are currently seeking an experienced Project Cost Engineer to support a major industrial capital project on a contract basis. This role will provide project controls, cost engineering,…
Added 9 hours ago
Procurement Engineer Coordinator
PCL Construction
Edmonton, AB
As a Procurement Engineer Coordinator for PCL Industrial Constructors Inc. in Edmonton, Alberta (Industrial), you'll have the opportunity to assists project manager(s) with overall…
Added 9 hours ago
MC
Senior Project Manager
MENARD Canada Inc.
Vancouver, BC
- Full-time
…tender review through project closeout while ensuring safety, quality, profitability and client…
Added 9 hours ago
A
Municipal Civil EIT - Civil 3D
AECOM
Burnaby, BC
- $66,000 to $75,000 CAD / year
- Full-time
AECOM's Municipal Roads Group in Burnaby is seeking a Junior Municipal Civil Designer / Engineer-in-Training to support the planning and design of municipal infrastructure across Metro…
Added 9 hours ago
HD
Databricks Engineer
Hire DigITalent Inc.
Toronto, ON · Greater Toronto Area, Canada
- $90 to $110 CAD / hour
- Contract
…and promotions. The project team needs a seasoned Senior Data Engineer to help lead the charge, stabilize key deliverables, and guide our technical strategy. This is a critical engagement…
Added 10 hours ago
TR
JREQ203081 Staff Software Engineer I (Open)
Thomson Reuters
Toronto, ON
- Full-time
The CoCounsel Agent Context team is seeking a Staff Software Engineer to set the technical direction for Content Tools - the purpose-built APIs that give AI agents precise, governed access…

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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