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Added 3 days ago
Data Center Technician (English, French)
Google
Montreal, QC
…servers and its components) and server software (like Google's Linux cluster). You'll also take on the configuration of more complex components such as networks, routers, hubs, bridges,…
Added 3 days ago
Senior Python Engineer
TSR Consulting
Mississauga, ON
Full-time
…APIs, microservices, event-driven architecture, and CI/CD on Linux and a proven ability to design, build, and support scalable, secure services and…
Added 3 days ago
Java Developer
TMC Canada
Montreal, QC
Full-time
We're looking for a Senior Java Developer to join a global engineering team building large-scale, distributed risk management applications. You'll work on mission-critical systems that…
Added 3 days ago
Student, Full Stack Developer
Sun Life
Toronto, ON
Full-time
Sun Life DMS is looking for a contract/Co-Op Full Stack Web Developer with strong communication and Collaboration skills to work closely with technical and non-technical audiences (written,…
Added 3 days ago
Sr Security Platform Engineer
Sun Life
Toronto, ON · Sun Life Toronto One York
Full-time
Strong Infrastructure/DevOps foundation, including Linux, Windows, Active Directory, SSO, authentication and authorization protocols, AWS, Azure, databases, Splunk, ServiceNow, and Jira.
Added 10 days ago
Head of Character Effects (CFX) - Netflix Animation Studios
Netflix
Vancouver, BC
Full-time
Strong scripting and/or programming skills (e.g., Python, VEX) and familiarity with Linux-based workflows
Added 3 days ago
Quality Assurance Engineer
DarkVision
North Vancouver, BC
Full-time
…quality of our various software products ranging from embedded Linux to Windows desktop applications, all the way to cloud processing. This position will also work hands-on with our…
Added 3 months ago
Network Engineer in Solution Test
Arista Networks
Vancouver, BC
Full-time
Familiarity with Linux tools such as ping, traceroute, tcpdump, ifconfig, ip link, ip route, arp, /proc/net, /proc/sys/net, vmstat, netstat, ttcp, iperf, and strace
Added 4 days ago
Technical Marketing Specialist (1 year contract)
Advanced Micro Devices, Inc
Markham, ON
Temporary
Must have experience using version control systems (e.g., Git) and understanding of Linux system administration.
Added 3 days ago
IT Support Lead
Cognizant
Mississauga, ON
Full-time
Oversee Windows and Linux server environments.
Added 4 days ago
FY27 Intern - Firmware/Embedded Software Engineering Internship - Canada (12 or 16 months)
Qualcomm
Toronto, ON
Full-time
Added 4 days ago
FY27 Intern - MSIP Design Methodology Engineering Internship - Canada (16 months)
Qualcomm
Toronto, ON
Full-time
Experience with scripting, Linux/Unix environment
Added 3 days ago
Software Developer - Java/Mobile
CGI
Vancouver, BC
Full-time
CGI is seeking a Junior to Intermediate Java Developer with Mobile platform experience (2 5+ years experience) to join our Vancouver based application support and enhancement team. This…
Added 3 days ago
Middleware Administrator
CGI
Vancouver, BC
Full-time
Experience building and maintaining Linux Server and Windows Servers VMs.
Added 3 months ago
Linux Engineer
Valence, LLC
Engineer, BC
Full-time
Description: The Linux Engineer analyzes user’s requirements, concept of operations documents, and high level system architectures to develop system requirements specifications. Analyzes…
Added 3 days ago
Senior Java Backend Developer
TSR Consulting
Mississauga, ON
$70 to $75 CAD / hour
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 3 days ago
C++ Developer - (In person - Courtenay, BC, Vancouver Island)
IRIS Analytics
Courtenay, BC
Full-time
Added 3 days ago
Senior Software Developer
Royal Bank of Canada
Toronto, ON
Full-time
4+ years with Java, J2EE, REST/Microservices, Linux and NoSQL/SQL databases
Added 3 days ago
Concepteur(trice), Logiciels / Designer, Software
Ultra I&C
Montreal, QC
Full-time
Expérience pratique avérée avec les systèmes d'exploitation temps réel (RTOS) tels que FreeRTOS, VxWorks ou Linux embarqué.
Added 3 days ago
Software Development Engineer, ECS
Amazon
Vancouver, BC
A successful candidate will need a strong understanding of software development with Linux, and be comfortable analyzing large amounts of data from multiple sources within a distributed…
Added 4 months ago
WORDPRESS BACKEND DEVELOPER
Cordiace Solutions
Cochin, SK
Full-time
Exposure to Linux Operating system and Apache configuration
Added 3 days ago
Cybersecurity Operations Analyst
Powerex
Vancouver, BC
Full-time
Solid understanding of enterprise networking, Windows/Linux systems, Active Directory/Entra ID, Microsoft 365, and common attack techniques.
Added 3 days ago
Senior Backend Developer
Cruit Group
Toronto, ON
Full-time
Position Title: Senior Back-End Developer – Platform & Core Systems
Added 3 days ago
Sr. Technical Support Specialist
Open Text Corporation
Waterloo, ON
Strong foundation in Unix/Linux operating systems.
Added 5 months ago
Embedded Engineer [TEE01]
SunSights Energy
Engineer, BC
Full-time

TSR Consulting

Senior Java Backend Developer

Mississauga, ON, Canada

Pay: $70 to $75 CAD / hour
Job type: Contract
Apply by: Oct 17, 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: Sep 17, 2026

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Original job description

Job Title: Senior Java Backend Developer

Location: Mississauga, ON (Hybrid 3 days/week)

Duration: Contract - 6 months

About TSR

TSR is a trusted staffing and workforce solutions partner with more than 50 years of experience delivery highly qualified talent to support clients' most critical business and technology initiatives. Through a disciplined approach to sourcing, candidate vetting, and delivery, TSR helps organizations scale teams quickly while maintaining quality and reliability. TSR operates with a global delivery model, leveraging specialized teams to support enterprise clients across North America and beyond.

In June 2024, TSR was acquired by Justin Christian, founder and CEO of BCforward, a global provider of professional services and workforce solutions. This partnership expands TSR's ability to deliver broader capabilities, global delivery resources, and enhanced opportunities for both clients and consultants.

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

The role involves designing, building, and optimizing high-performance backend applications for batch and real-time data processing. You will lead technical implementation, drive architecture, and mentor other engineers while ensuring code quality and system scalability.

Requirements

Candidates must have 8+ years of professional experience in Java-based backend architectures and deep expertise in Core Java, concurrency, and distributed systems. Proficiency in the Spring ecosystem, data streaming frameworks, and database management is required.

Skills

Core Java
Spring Boot
Apache Kafka
Apache Spark
Distributed Systems
Multithreading
JVM Performance Tuning
SQL
NoSQL
Docker
Kubernetes
CI/CD
Test-Driven Development
RESTful APIs
gRPC
Hibernate

Visa sponsorship

Not detected in the job text

Keywords

Java 11
Java 17
Java 21
Spring Cloud
Spring Data
Spring Security
PostgreSQL
MySQL
Oracle
Cassandra
MongoDB
Redis
Flink
Hadoop
Jenkins
GitLab CI
GitHub Actions
JUnit
Mockito
ETL
Microservices
Event-driven
Garbage collection
Heap analysis
Infrastructure-as-code

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