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Added 1 month ago
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Principal Electrical Engineer – Transportation
GFT
Toronto, ON
- Full-time
GFT is seeking an experienced Senior Electrical Engineer – Transportation to join our Transportation team. This position may be based anywhere in Ontario.
Added 1 month ago
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Sr. Software Engineer
DNV
Toronto, ON
- Full-time
The Senior Software Engineer is responsible for designing, developing, testing, deploying, and supporting production-grade software products and shared platform capabilities within DNV’s…
Added 1 month ago
Senior Software Development Engineer, Amazon Customer Service
Amazon
Toronto, ON
…experiences to millions of customers worldwide, and we're seeking a Senior Software Development Engineer to help build the next generation of intelligent solutions. In this role, you'll…
Added 1 month ago
TS
Technical Analyst - Tier 3
TLC Solutions
Langley (District), BC · Langley, British Columbia
- Full-time
Strong experience in a senior Tier 3, at least 5+ Years as Systems Administrator, Systems Engineer, or similar technical role.
Added 1 month ago
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Senior Infrastructure Specialist
McKesson
Mississauga, ON
- Full-time
The Senior Infrastructure Engineer plays a critical role in modernizing McKesson’s infrastructure, accelerating cloud adoption, improving platform reliability, reducing technical debt, and…
Added 1 month ago
W
Senior to Principal Electrical Engineer
Worley
Vancouver, BC
- Full-time
The Senior or Principal Electrical Engineer provides high-quality electrical engineering services to Worley and its customers across large and complex industrial projects. The role is…
Added 1 month ago
PS
Project Manager (Industrial Automation)
Professional Staffing
Cambridge, ON
- Contract
…solutions. As they continue to grow, they are seeking an experienced Senior Project Manager to lead large-scale automation and engineered systems projects from concept through final…
Added 1 month ago
W
Senior to Principal Electrical Engineer
Worley
Calgary, AB
- Full-time
The Senior or Principal Electrical Engineer provides high-quality electrical engineering services to Worley and its customers across large and complex industrial projects. The role is…
Added 1 month ago
W
Senior to Principal Electrical Engineer
Worley
Edmonton, AB
- Full-time
The Senior or Principal Electrical Engineer provides high-quality electrical engineering services to Worley and its customers across large and complex industrial projects. The role is…
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
Fleet Engineer
Purolator
Calgary, AB · Richmond, BC · Montreal, QC · ON · Saint-Laurent, Queb · Mississauga, ON
Reporting to the Senior Manager, Fleet Engineering, the Fleet Engineer will help shape and deliver Purolator’s transition to a safer, smarter, and more sustainable ground fleet. Working…
Added 1 month ago
G
Principal Electrical Engineer – Transportation
GFT.
Mississauga, ON · Ottawa, ON · Toronto, ON
- Full-time
This senior technical role will strengthen GFT’s transportation electrical capabilities and expand our ability to pursue and deliver complex MTO and municipal assignments across Ontario.…
Added 1 month ago
GC
Senior Geohazard Engineer
Geosyntec Consultants
Calgary, AB
- Full-time
…practice within Geosyntec. Additional responsibilities include project management, staff management, and mentoring. Here are some other things you should know about a typical Senior…
Added 1 month ago
TT
Intermediate/Senior - Cost Controller
TWD Technologies Ltd.
Burlington, ON
- Contract
As an experienced Senior Structural Engineer, you will provide technical leadership and engineering expertise across structural design and analysis activities for energy and infrastructure…
Added 1 month ago
GC
Senior Geohazard Engineer
Geosyntec Consultants, Inc.
AB · Calgary, AB
- Full-time
…practice within Geosyntec. Additional responsibilities include project management, staff management, and mentoring. Here are some other things you should know about a typical Senior…
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
LU
Director, Maintenance & Operations, Maintenance Services
Laurentian University/Université Laurentienne
Sudbury, ON
- Full-time
…diverse team to deliver essential building services, mechanical systems maintenance, and contracted operations in alignment with the university’s tricultural mandate and regulatory…
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
TT
Electrical Engineering Specialist – Facilities (P.Eng., EGBC)
TWD Technologies Ltd.
Burnaby, BC
- Full-time
Collaborate with architects, civil engineers, and project managers to integrate electrical systems into multidisciplinary projects.
Added 1 month ago
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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
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Electrical Engineer, Mission Critical
Stantec
Toronto, ON
- Full-time
The MCF (Mission Critical Facilities) Engineer performs technical duties under the supervision of a Senior Project Engineer or Project Engineer. Understands and identifies project…
Added 1 month ago
S
Electrical Engineer, Mission Critical
Stantec
Mississauga, ON
- Full-time
The MCF (Mission Critical Facilities) Engineer performs technical duties under the supervision of a Senior Project Engineer or Project Engineer. Understands and identifies project…
Added 1 month ago
A
Commercial Director (Nuclear New Build)
AtkinsRéalis
Mississauga, ON · Pickering, ON
- Full-time
…technology to transform the world's infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project…
Added 1 month ago
A
Senior Electrical Engineer
AtkinsRéalis
Toronto, ON · Montreal, QC
- Full-time
…critical energy and industrial infrastructure projects. As a Senior Electrical Engineer, you will be part of a multidisciplinary engineering team, leading the design and execution of…
Added 1 month ago
A
Senior Civil Structural Engineer
AtkinsRéalis
Toronto, ON · Montreal, QC
- Full-time
…technology to transform the world's infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project…

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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