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Added 1 month ago
J
Senior Infrastructure Engineer
JSI
Ottawa, ON
- Full-time
JSI Telecom is seeking a highly motivated and experienced Senior Infrastructure Engineer (with strong Networking) to design, implement, and support complex enterprise and customer…
Added 1 month ago
C
Engineering Excellence NAM - SVP
Citi
Mississauga, ON
- Full-time
…distance. This is a role for someone who can walk into a room of senior engineers, earn their respect by talking code, and then turn around and articulate a compelling vision for why…
Added 1 month ago
LI
Senior Java Software Engineer
LanceSoft, Inc.
Montreal, QC
- Contract
Ensure all code aligns with established architectural standards, integration patterns, and enterprise engineering guidelines.
Added 1 month ago
AI and Data - Manager - AI/ML Engineer
EY
AB · Calgary, AB
…solutions for our clients. You will lead teams, engage with senior client stakeholders, and translate complex business challenges into secure, ethical and high‑impact AI/ML solutions. This…
Added 1 month ago
GS
Electrical Engineer/Designer
Grantek Systems Integration
Burlington, ON
- Full-time
The Electrical Engineer/Designer at Grantek is an exciting opportunity for an intermediate to senior-level professional with a strong background in electrical design and industrial control…
Added 1 month ago
ND
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 1 month ago
TC
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 1 month ago
UT
Senior ASIC Verification Engineer – SystemVerilog / UVM / High-Speed I/O / SoC / Chipsets
USA Tech Recruit
Ottawa, ON
- Full-time
Senior ASIC Verification Engineer / Senior Verification Engineer / Staff Verification Engineer / ASIC Verification / SoC Verification / RTL Verification / Hardware Verification /…
Added 1 month ago
C
Senior Business Analyst
Ciklum
Canada
- Full-time
Ciklum is looking for a Senior Business Analyst to join our team full-time in Canada.
Added 1 month ago
A
Technical Director - Turbine and Generators (Hydropower)
AtkinsRéalis
Montreal, QC
- Full-time
AtkinsRéalis is seeking a Senior Hydropower Electromechanical Engineer for the position of Technical Director to act as a Subject Matter Expert (SME) in Hydro Turbines-Generators Systems,…
Added 1 month ago
VL
Industrial Automation and CSV Engineer - Ontario, Canada
VTI Life Sciences
Cambridge, ON
- Full-time
We are seeking experienced Senior Automation Validation Engineers to support our project involving automated and robotic medical-device assembly equipment.
Added 1 month ago
VL
Industrial Automation and CSV Engineer - Ontario, Canada
VTI Life Sciences
Cambridge, ON
- Full-time
We are seeking experienced Senior Automation Validation Engineers to support our project involving automated and robotic medical-device assembly equipment.
Added 1 month ago
A
Ingénieur(e) Senior, Plateforme de Données
Astek
Montreal, QC
- Full-time
…plus innovantes. Reconnue mondialement pour la conception, l'intégration et la livraison de systèmes de simulation et d'entraînement de pointe, notre entreprise relève des défis complexes,…
Added 1 month ago
MR
Computer Engineer - Excalibur
MGM Resorts International
NB · Chiasson Office, NB
- Full-time
The Deployment Engineer will be responsible for generating new and innovative solutions to complex problems and propose improvements to processes.
Added 1 month ago
Lead IAM Engineer
Braze
Toronto, ON
We’re seeking a Lead IAM Engineer to own the technical direction and evolution of our enterprise identity and access management strategy. In this senior individual contributor role, you’ll…
Added 1 month ago
B
Sr Analyst, DevOps
Brookfield
Toronto, ON
- Full-time
The Senior AI Cloud Developer Analyst within Brookfield’s Technical Service Group (TSG) builds and delivers AI solutions from prototype to production, implementing scalable, secure and…
Added 1 month ago
B
Lead IAM Engineer
Braze
Toronto, ON
- Full-time
We’re seeking a Lead IAM Engineer to own the technical direction and evolution of our enterprise identity and access management strategy. In this senior individual contributor role, you’ll…
Added 1 month ago
ES
Offensive Security Engineer
Epsilon Solutions Ltd.
Toronto, ON
- Contract
As “Principal Consultant, Agentic AI Cybersecurity Engineer” you will work hands-on alongside our cybersecurity engineering and application security teams to build, operate, and advance the…
Added 1 month ago
C
Ingénieur(e) solutions
ChapsVision
Montreal, QC
- Full-time
En fonction de votre expérience, vous jouerez soit un rôle clé, soit celui de responsable technique senior dans le cadre de mises en œuvre stratégiques : vous concevrez des solutions,…
Added 1 month ago
BT
Senior DevOps Engineer
Bison Transport
Winnipeg, MB
- Full-time
The Senior DevOps Engineer is responsible for the reliability, security, scalability, automation, and operational support of Bison’s enterprise integration platforms and containerized…
Added 1 month ago
Senior Mobile Programmer
Epic Games
Montreal, QC
The Fortnite Technology Team is looking for an experienced Mobile Platform Engineer passionate about creating world-class, industry leading game engine technologies, targeting the full…
Added 1 month ago
Principal Consultant, GenAI
Lovelytics
Toronto, ON
We’re looking for a GenAI Engineer who's already taken GenAI from concept to production on Databricks. Joining our GenAI practice means you’ll design and deploy solutions that work in the…
Added 1 month ago
BA
Sr Analyst, DevOps
Brookfield Asset Management
Toronto, ON · Brookfield Place
- Full-time
The Senior AI Cloud Developer Analyst within Brookfield’s Technical Service Group (TSG) builds and delivers AI solutions from prototype to production, implementing scalable, secure and…
Added 1 month ago
C
Telecom Engineer
CIMA+
Vancouver, BC
- $81,520 to $112,090 CAD / year
- Full-time
…intelligent automation, software and systems engineering, and systems integration, the team develops resilient, scalable, and optimized solutions that ensure the long-term sustainability of…
Added 1 month ago
C
Telecom Engineer
CIMA+
Edmonton, AB · Vancouver, British Columbia
- Full-time
…intelligent automation, software and systems engineering, and systems integration, the team develops resilient, scalable, and optimized solutions that ensure the long-term sustainability of…

TSR Consulting

Senior Java Software Engineer

Mississauga, ON, Canada

Contract

Apply About employer

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Job details

Job type: Contract
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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