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Added 22 days ago
L
Customer Success Application Engineer
Litmus
Toronto, ON
- Full-time
Strong technical understanding of network protocols, system architecture, Linux-based systems, databases, and customer deployment environments.
Added 23 days ago
EM
Technical Product Specialist – Media Transport
Evertz Microsystems Limited
Burlington, ON
- Full-time
Working knowledge of Linux environments, networking and IP protocols
Added 22 days ago
S
Senior Database Administrator-FT-Downsview
Serco
Toronto, ON · North York, ON
- Full-time
…both on-prem and Microsoft Azure Cloud environment on RedHat Linux and Windows Servers. Also, will be responsible for designing, developing, and implementing ETL processes to support data…
Added 23 days ago
ST
Intermediate Systems Engineer
SPX Technologies
Mississauga, ON
- $90,100 to $127,400 CAD / year
Radiodetection is part of the SPX Detection and Measurement platform. It is the world’s leading developer of water, wastewater, and storm water inspection equipment. With CCTV cameras,…
Added 22 days ago
TC
Java MS developer
Tata Consultancy Services
Mississauga, ON
- $100,000 to $130,000 CAD / year
- Full-time
Added 22 days ago
RS
Site Reliability Engineer
Redwood Software
ON
- $125,000 to $145,000 CAD / year
Proficiency working in Linux environments with strong Bash and/or Python scripting skills for automation and troubleshooting.
Added 22 days ago
A
Python Full Stack Developer
Astek
Montreal, QC
- Full-time
Linux/Unix & Shell Scripting: Solid working knowledge.
Added 22 days ago
TC
Data Engineer
TMC Canada
Montreal, QC
- Full-time
Basic knowledge of Unix/Linux operating systems
Added 22 days ago
J
Senior Infrastructure Engineer
JSI
Ottawa, ON
- Full-time
Added 22 days ago
LI
Senior Java Software Engineer
LanceSoft, Inc.
Montreal, QC
- Contract
Comfortable working within Linux environments and leveraging command-line tools for development and debugging.
Added 23 days ago
A
Identity Management Consultant
Akkodis
Toronto, ON
- Contract
…Oracle database 11g (and later), Solaris, Windows, AIX and…
Added 23 days ago
S
Java & Snowflake Developer
Synechron
Calgary, AB
- $75,000 to $85,000 CAD / year
- Full-time
We are seeking a Java & Snowflake Developer to join our technology team. The ideal candidate will have strong hands-on experience in Java development, Snowflake, and SQL, along with…
Added 23 days ago
A
Senior Business Development Manager– AI and Incubation Team
Aptiv
Ottawa, ON
- Full-time
Added 23 days ago
A
Senior Full Stack Developer (React/Typescript/Node.js)
Affinity
Canada
- Full-time
Overview: On behalf of our client, Affinity is seeking an experienced Senior Full Stack Developer to join their engineering team in Canada. This is a full-time opportunity for a seasoned…
Added 23 days ago
EW
Software Engineer – Wi-Fi
Eagle Wireless
BC · British Columbia, Canada
- $75,000 to $100,000 CAD / year
- Full-time
We are looking for a talented Software Engineer – Wi-Fi to design, develop, and maintain Linux-based embedded systems for IoT devices. This role focuses on Wi-Fi connectivity, networking…
Added 23 days ago
JT
Senior Java Software Engineer
Jobility Talent Solutions
Toronto, ON
- Contract
Job Title: Java Developer – Capital Markets (eTrading)
Added 23 days ago
TC
Linux and Debian
Tata Consultancy Services
Montreal, QC
- $100,000 to $120,000 CAD / year
- Full-time
Administer Linux and Debian-based servers and operating systems.
Added 23 days ago
TC
Senior Java Software Engineer
TSR Consulting
Mississauga, ON
- Contract
TSR Consulting is currently seeking a highly motivated Java Full Stack/ Java Backend Developer for an opportunity in Mississauga, ON Hybrid
Added 23 days ago
BI
Data Cloud Platform Engineer (DBA) (2)
BALLY’S INTRALOT SA
Vancouver, BC
- Full-time
Added 1 month ago
Sr. DevSecOps Engineer
Rogers Communications
Brampton, ON · Toronto, ON
Hands- on Experience with Linux systems specifically RHEL including scripting
Added 23 days ago
A
Senior Full Stack Software engineer
Affinity
BC · British Columbia, Canada
- Full-time
On behalf of our client, Affinity is seeking an experienced Senior Full Stack Developer to join their engineering team in Canada. This is a full-time opportunity for a seasoned engineer who…
Added 23 days ago
AA
Machine Learning Applied Scientist (Co-op)
Apera AI
Vancouver, BC
- $3,600 to $4,500 CAD / month
- Full-time
Experience working in Linux or Docker-based environments.
Added 23 days ago
B
Senior DevOps Engineer
Bounteous
Montreal, QC
- Full-time
Diagnose and resolve issues spanning application, network, and Linux
Added 23 days ago
AA
Software Developer - C++ (Co-op)
Apera AI Inc
Vancouver, BC
- $3,600 to $4,500 CAD / month
Apera AI is seeking a Software Developer (Co-op) with strong C++ skills and an interest in robotics to join our Apera Vue engineering team for the 8 months term period (Jan 2027 - August…
Added 23 days ago
AA
Machine Learning Applied Scientist (Co-op)
Apera AI Inc
Vancouver, BC
- $3,600 to $4,500 CAD / month
Experience working in Linux or Docker-based environments.

TSR Consulting

Senior Java Software Engineer

Mississauga, ON, Canada

Contract

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Job details

Job type: Contract
Apply by: Oct 16, 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 16, 2026

Original job description

TSR Consulting is currently seeking a highly motivated Java Full Stack/ Java Backend Developer for an opportunity in Mississauga, ON Hybrid

Position Title: Java Full Stack/ Java Backend Developer

Location: Mississauga, ON Hybrid

Anticipated Start Date: ASAP

Expected Duration: 6+Months contract to hire

Job Type: Hybrid

Job Description:

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.

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

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.

Benefits:

TSR Consulting offers all eligible employees a comprehensive benefits package including, but not limited to major medical, HSA, dental, vision, employer-provided group life, voluntary life insurance, short-term disability, long-term disability, and 401k.

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.

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More about this job

Responsibilities

Design, build, and optimize high-performance backend applications specializing in batch and real-time data processing. Lead technical implementation of complex initiatives while providing mentorship and architectural guidance to the engineering team.

Requirements

Requires 8+ years of professional experience with expert-level mastery of Core Java and the Spring ecosystem. Must have extensive experience with distributed data processing tools like Kafka or Spark and proficiency in both relational and NoSQL databases.

Skills

Java
Spring Boot
Apache Kafka
Apache Spark
Microservices
Distributed Systems
Hibernate
PostgreSQL
NoSQL
Docker
Kubernetes
CI/CD
TDD
JVM Tuning
RESTful APIs
gRPC

Benefits

Major Medical
Hsa
Dental
Vision
Employer-provided Group Life
Voluntary Life Insurance
Short-term Disability
Long-term Disability
401k

Visa sponsorship

Not detected in the job text

Keywords

Java 11
Java 17
Java 21
Spring Cloud
Spring Data
Spring Security
JPA
Cassandra
MongoDB
Redis
Jenkins
GitLab CI
GitHub Actions
JUnit
Mockito
AWS
Azure
GCP
Unix
Linux
Shell Scripting
OOP
SOLID
ETL
Flink
Hadoop
Event-driven Architecture
Financial Services
Banking Technology
Distributed Systems

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