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Added 4 days ago
Senior Software Developer
General Motors
Markham, ON
Full-time
This role is for a hands-on senior engineer who can design, implement, test, deploy, and operate reliable backend systems at production scale. The developer will contribute across REST…
Added 4 days ago
Chaos Engineer
HCLTech
Toronto, ON
$75,000 to $80,000 CAD / year
Full-time
Strong experience in Java/Python, Microservices, APIs, Kubernetes, Docker, and Cloud Platforms (Azure/GCP/AWS).
Added 4 days ago
Tech Consultant - Senior Full-Stack Engineer
NTT DATA North America
Vancouver, BC
Other
NTT Data is looking for a SR. Full- Stack Engineer to join their team in Vancouver, British Columbia.
Added 5 days ago
Senior Full Stack Developer (React/Typescript/Node.js)
Affinity
Canada
Full-time
…team in Canada. This is a full-time opportunity for a seasoned engineer who can contribute across both backend and frontend development, with a strong emphasis on building scalable,…
Added 5 days ago
Senior Java Software Engineer
Jobility Talent Solutions
Toronto, ON
Contract
Job Title: Java Developer – Capital Markets (eTrading)
Added 5 days ago
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 5 days ago
Senior Java Fullstack Developer
TSR Consulting
Mississauga, ON
Contract
We are seeking a Senior Software Engineer - Java - Senior (C13), Full Stack to join our dynamic team. The ideal candidate will have strong experience in Java, Spring Boot, Spring Cloud, and…
Added 5 days ago
Full Stack Engineer
TSR Consulting
Mississauga, ON
$70 to $75 CAD / hour
Contract
Seeking experienced Java Full Stack Developers to support enterprise-scale technology initiatives within a leading global financial institution. This role is primarily focused on Java…
Added 5 days ago
IBM MDM Data Developer
UniSysTech Consulting
Toronto, ON · Greater Toronto Area, Canada
$70 to $80 CAD / hour
Contract
We are seeking a hands-on IBM MDM Data Engineer to design, build, and operate our core Master Data Management (MDM) platform and real-time data streaming architectures. In this role, you…
Added 1 month ago
Sr. DevSecOps Engineer
Rogers Communications
Brampton, ON · Toronto, ON
We are currently seeking a Sr DevSevOps Engineer to join the Rogers Enterprise DevSecOps Engineering Team. Working from Toronto or Brampton office, you will work with the Enterprise DevOps…
Added 1 month ago
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Quartz
Open Hall, NL
Full-time
We're looking for a Backend Engineer to help build the core of how Quartz works - the systems that aggregate user data, power Charlie (our AI advisor), and make personalised wealth advice…
Added 5 days ago
Senior Full Stack Software engineer
Affinity
BC · British Columbia, Canada
Full-time
…team in Canada. This is a full-time opportunity for a seasoned engineer who can contribute across both backend and frontend development, with a strong emphasis on building scalable,…
Added 6 days ago
Sr. Software Engineer, AVP II
State Street
Toronto, ON
Full-time
…participants in the industry. The role requires a strong full-stack engineer who can work across rich web functionality, backend services, automated testing, performance engineering, and…
Added 6 days ago
Senior Software Engineer
Microsoft
Vancouver, BC
Full-time
As a Senior Software Engineer, you will help design, build, and operate core components of the service while solving complex challenges across distributed systems, database technologies,…
Added 5 days ago
Senior Data Engineer
Leni
Toronto, ON
Full-time
The Senior Data Engineer role at Leni is a full-time, hybrid position based in Toronto, ON, with flexibility for partial work from home. In this role, the Senior Data Engineer designs,…
Added 5 days ago
Senior Staff Software Engineer, Data
Jobgether
Canada
Full-time
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Staff Software Engineer, Data based in Canada .
Added 6 days ago
Quality Engineer Automation Architect
Royal Bank of Canada
Toronto, ON
Full-time
Experience in a variety of test automation frameworks/tools (Postman, Cucumber, Robot) and script development using scripting languages (Java, Selenium)
Added 5 days ago
Software Engineer
aivra.health
Toronto, ON
$100,000 to $160,000 CAD / year
Full-time
We are looking for a motivated Software Engineer to join our growing technology team in Toronto. This opportunity is open to fresh graduates and experienced professionals who are passionate…
Added 5 days ago
Performance Engineer
J&M Group
Toronto, ON
Full-time
Added 6 days ago
Junior Quality Assurance Engineer Co-op
Trulioo Co-op & Internship
Remote, Canada
Internship · Remote
We are looking for a motivated Junior Quality Assurance Engineer Co-op to join our QA team. The successful candidate will be comfortable working in a fast-paced, collaborative environment,…
Added 6 days ago
Staff, Site Reliability Engineer(Global Security)
RBC
Vancouver, BC · Halifax, NS · Toronto, ON
Full-time
We are seeking an experienced and hands-on Staff Site Reliability Engineer (SRE) who is passionate about building scalable systems, automating infrastructure, and improving the reliability…
Added 6 days ago
Senior Machine Learning Engineer
RBC
Calgary, AB · Toronto, ON
Full-time
We are seeking a talented Senior Machine Learning Engineer to join our AI & Innovation team at Royal Bank of Canada. In this role, you will drive the development and deployment of…
Added 6 days ago
Quality Engineer Automation Architect
RBC
Toronto, ON
Full-time
Experience in a variety of test automation frameworks/tools (Postman, Cucumber, Robot) and script development using scripting languages (Java, Selenium)
Added 5 days ago
Java/AI Software Engineer
Aptonet
Vancouver, BC
Full-time
We are seeking an Intermediate Software Engineer to join our team in Vancouver, BC, and help build innovative generative AI capabilities across Planview products. In this role, you will…
Added 5 days ago
Java Software Engineer
Motion Recruitment
Toronto, ON
$120,000 to $140,000 USD / year
Full-time
…the world. This team is currently looking to hire a series of Java Software Engineers and are hybrid in Downtown…

TSR Consulting

Senior Java Software Engineer

Mississauga, ON, Canada

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

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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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