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Added 5 days ago
Senior Software Developer, AI Platform
Wealthsimple Technologies
Remote, Canada
$152,000 to $189,000 CAD / year
Full-time · Remote
…polyglot environment of Ruby on Rails, Python, TypeScript, and Java/Kotlin, partnering with teams across Platform Engineering to build tooling that is adopted broadly, trusted deeply, and…
Added 5 days ago
Senior Full Stack Developer (Java, Angular)
Royal Bank of Canada
Mississauga, ON
Full-time
This position is a senior Java Application Full-Stack developer (TSA-Technical Systems Analyst) working to develop new and extend existing applications in the RBC Insurance Digital…
Added 4 days ago
Senior Java Technical Lead
Net2Source (N2S)
Toronto, ON
Contract
Skills: Digital : Amazon Web Service(AWS) Cloud Computing~Java Full stack, Python, Spring Boot, Angular, AWS, REST API
Added 4 days ago
Senior Java Technical Lead
J&M Group
Toronto, ON
Contract
10+ years of Java/J2EE development experience.
Added 4 days ago
Software Developer - Full Stack - Senior (Java exp)
Bevertec
Toronto, ON
Contract
Job Role: Software Developer - Full Stack - Senior (Java exp)
Added 4 days ago
Software Developer Full Stack Senior
TechDoQuest
Toronto, ON
Contract
We are seeking a Senior Full Stack Java Developer with strong experience in Java, Spring Boot, Angular, Azure, and RESTful APIs. The candidate should have experience developing solutions…
Added 4 days ago
Senior Software Developer
General Motors
Oshawa, ON
Full-time
General Motors is seeking a Senior Software Developer to build and evolve the software platforms that support production mapping, Data Over the Air (DOTA) Back Office capabilities, and…
Added 4 days ago
Senior Software Developer
General Motors
Markham, ON
Full-time
General Motors is seeking a Senior Software Developer to build and evolve the software platforms that support production mapping, Data Over the Air (DOTA) Back Office capabilities, and…
Added 4 days ago
Security & AI DevSecOps Expert (Hybrid)
Ateko, backed by Bell Canada
Toronto, ON
Contract
Develop automation scripts and tools using Python (preferred) or Java.
Added 4 days ago
Senior Dotnet Developer
Lorven Technologies Inc.
Mississauga, ON
Contract
Leverage AI developer tools (e.g., GitHub Copilot, Claude, Cursor) effectively to accelerate development and improve engineering output.
Added 4 days ago
Tech Consultant - Senior Full-Stack Engineer
NTT DATA North America
Vancouver, BC
Other
We are seeking an experienced Senior Full Stack Engineer to design, develop, and deliver scalable, secure, and high-performing enterprise applications. The ideal candidate should have…
Added 4 days ago
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 4 days ago
Senior Java Technical Lead
Net2Source (N2S)
Toronto, ON
Contract
Skills: Digital : Amazon Web Service(AWS) Cloud Computing~Java Full stack, Python, Spring Boot, Angular, AWS, REST API
Added 4 days ago
Lead Backend Developer
Yochana
Brampton, ON
Full-time
We are seeking a proficient 8 to 15 Years of Java Backend Senior Developer in Java Spring Boot.
Added 5 days ago
Senior Full Stack Developer (Java, Angular)
RBC
Mississauga, ON
Full-time
This position is a senior Java Application Full-Stack developer (TSA-Technical Systems Analyst) working to develop new and extend existing applications in the RBC Insurance Digital…
Added 4 days ago
Senior Java Software Engineer
Jobility Talent Solutions
Toronto, ON
Contract
Job Title: Java Developer – Capital Markets (eTrading)
Added 4 days ago
Full Stack Java Developer
Astek
Montreal, QC
Full-time
We are looking for a Senior developer, preferably with exposure to Cloud Architectures & Public Cloud offerings, to join our team building a resilient, scalable, and secure cloud-based…
Added 4 days ago
Senior Java Software Engineer
TSR Consulting
Mississauga, ON
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 4 days ago
Senior Java Fullstack Developer
TSR Consulting
Mississauga, ON
Contract
TSR Consulting is currently seeking a highly motivated Senior Java Fullstack Developer for an opportunity in Mississauga, ON
Added 1 month ago
Sr. DevSecOps Engineer
Rogers Communications
Brampton, ON · Toronto, ON
Helps determine/enrich coding standards along with the senior development team and ensures consistent adoption by developers
Added 5 days ago
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 5 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 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 5 days ago
Lead Développeur Java Spring Boot (Senior)
SII Canada
Montreal, QC
Full-time
Nous recherchons un(e) spécialiste technique sénior afin d'assurer l'alignement entre les équipes technologiques internationales et les besoins d'affaires régionaux. La personne participera…
Added 6 days ago
Sr Developer, High Value Payments Engineering
Royal Bank of Canada
Toronto, ON
Full-time
As part of a major payment modernization initiative, Royal Bank of Canada is seeking a senior developer to actively to contribute to the evolution and modernization for our next-generation…

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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