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Added 10 days ago
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Sr. Full Stack Engineer, TD Securities
TD
Toronto, ON
- Full-time
The Asset Liquidity and Funding Analytics Technology team at TD Securities is seeking an experienced Full-stack Engineer to build the next generation of a risk computation platform. The…
Added 10 days ago
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Senior Software Engineer
Autodesk
Toronto, ON · AMER - Canada - Ontario - Toronto - University Ave
- Full-time
Autodesk’s Data Platform is building the next generation of data infrastructure, AI native, scalable, and developer-friendly systems that power analytics, AI, real-time insights, and…
Added 10 days ago
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Platform Engineer
Hays
Toronto, ON
- Contract
We are seeking a highly skilled Senior/Lead Platform Engineer with strong expertise in Azure, Databricks, Python, PySpark, and Spark SQL to design, develop, and support scalable cloud-based…
Added 10 days ago
T
Senior Java Back-End Engineer, TD Securities
TD
Toronto, ON
- Full-time
TDS Enterprise Technology Solutions, Global Prime Brokerage is looking for a Full-time Senior Java Developer.
Added 10 days ago
T
Java Developer, TD Securities
TD
Toronto, ON
- Full-time
The Market Risk Technology Engineering Team is looking to on-board a self-starting, high-performing Java software engineer with a strong engineering mindset to help us grow our risk &…
Added 10 days ago
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Senior Java Software Engineer
Bounteous
Montreal, QC
- $100,000 to $115,000 CAD / year
- Full-time
We are seeking a talented Java Backend Developer to design, develop, and maintain scalable enterprise applications. The ideal candidate will have strong hands-on experience with Java,…
Added 10 days ago
O
Senior Software Engineer
Okta
Toronto, ON
- $136,000 to $187,000 CAD / year
- Full-time
We are looking for a Senior Software engineer who is passionate about writing the tools to integrate and support to build large-scale, high-demand software in a fast-paced agile…
Added 10 days ago
Senior Software Engineer
Okta
Toronto, ON
We are looking for a Senior Software engineer who is passionate about writing the tools to integrate and support to build large-scale, high-demand software in a fast-paced agile…
Added 10 days ago
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Back-end Software Engineer (Kotlin)
Manulife
Waterloo, ON · Montreal, QC
- Full-time
Added 13 days ago
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Member of Technical Staff 2- EIE
Nutanix
Vancouver, BC
- $103,000 to $155,000 CAD / year
- Full-time
Are you an ambitious software engineer looking to solve complex distributed systems challenges and build enterprise-grade platform infrastructure? Join Nutanix as a Member of Technical…
Added 13 days ago
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Software Engineer I
TD
Toronto, ON
- Full-time
Experience delivering software features using modern programming languages such as Java, Python, or similar
Added 13 days ago
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Full Stack Senior Engineer
Citi
Mississauga, ON
- Full-time
Technologies: Java/ JEE, Cloud/ IaaS/ PaaS, UI/UX & SOA/ Micro Services, Spring, Microservices, Angular/React
Added 14 days ago
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Software Test Developer Assistant Vice President
Citi
Mississauga, ON
- Full-time
We are looking for a hard-working, and driven Automation QA Engineer to become a valuable addition to our team. The perfect fit is someone who enjoys challenges, navigates ambiguity, and…
Added 14 days ago
Sr. Site Reliability Administrator
Open Text Corporation
Mississauga, ON
The role Cloud Application Engineer/Site Reliability Engineer is to build solutions to enhance availability, performance, and stability of OpenText services as well as automating away…
Added 14 days ago
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Senior Machine Learning Engineer
Fusemachines
Remote, Canada
- Contract
- Remote
We’re hiring a Senior Machine Learning Engineer to architect, build, and deploy high-performance machine learning systems that power technology stack. You will work across the entire ML…
Added 14 days ago
S
Senior Full-Stack Developer [Security & Risk Products]
ScalePad
Vancouver, BC
- Full-time
A full stack engineer who can effortlessly navigate between fixing a table layout on the front end to resolving a scalability challenge with a data API in one of the microservices .
Added 14 days ago
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Software Engineer-Global Payments Engineering
Scotiabank
Toronto, ON
- Full-time
The Software Engineer, Global Payment Technology, contributes to the overall success of the Global Payment Technology globally by designing, developing, and implementing applications using…
Added 14 days ago
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Java Developer (React)
Collabera
Toronto, ON
- $90 to $102 CAD / hour
- Contract
The Senior Full Stack Engineer will join a Capital Markets engineering team responsible for modernizing and rebuilding a mission-critical platform used across Public Markets. This is…
Added 14 days ago
PG
Test Engineer
Pacer Group
Montreal, QC
- $45 to $48 CAD / hour
- Contract
Experience with Java application development and frameworks such as Spring Boot.
Added 14 days ago
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Testing Engineer
J&M Group
Toronto, ON
- Full-time
Experience developing applications using Java and Java-based frameworks such as Spring Boot
Added 14 days ago
AI
QA Engineer – Performance & Automation Testing
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Montreal, QC
- Full-time
Experience developing applications using Java and Java-based frameworks such as Spring Boot.
Added 14 days ago
Software Engineer- Global Payments Engineering
Scotiabank
Toronto, ON
The Software Engineer, Global Payment Technology, contributes to the overall success of the Global Payment Technology globally by designing, developing, and implementing applications using…
Added 14 days ago
SI
Software Engineer with Java, Python expereince
Smart IT Frame LLC
Toronto, ON
- Contract
Role: Application Developer Software Engineer
Added 14 days ago
RL
Java Software Engineer
RedCompass Labs
Toronto, ON
- Full-time
…related to payments and the financial using knowledge about Java, Spring framework, Kafka and Cloud…
Added 15 days ago
UR
Specialist, AI Engineering
Urban Ridge Supplies
Toronto, ON
- Full-time
We are seeking a forward-thinking AI Engineer to join our innovative team and drive the future of Property & Casualty (P&C) insurance. This role is pivotal in bridging the gap between…

Collabera

Java Developer (React)

Toronto, ON, Canada

$90 to $102 CAD / hour · Contract

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Job details

Pay: $90 to $102 CAD / hour
Job type: Contract
Apply by: Oct 24, 2026
Experience: 10+ years of enterprise Java development experience. (80%)
Posting language: English
Posted: Sep 24, 2026

Original job description

Title: Senior Java Engineer

Client: Investment Industry

Type: 6-month contract + opportunity to extend

Location: Downtown Toronto, ON - Hybrid (4 day/week on-site)

PR: $90-100/hr (as per experience)

Why Is This Role Open?

Client is executing a large-scale transformation to refactor a legacy monolithic application into a microservices-based architecture.

The Senior Full Stack Engineer will join a Capital Markets engineering team responsible for modernizing and rebuilding a mission-critical platform used across Public Markets. This is primarily a backend-focused role (approximately 80% backend / 20% frontend), requiring deep expertise in Java development while also contributing to React-based UI enhancements.

The successful candidate will play a key role in decomposing a legacy monolithic application into cloud-native microservices while supporting ongoing user interface enhancements for portfolio management users.

Day-to-Day Responsibilities

Refactor and decompose a large monolithic application into microservices.
Design, develop, and maintain backend services using Java and Spring Boot.
Contribute to architecture discussions, service boundaries, and technical design decisions.
Develop and deploy cloud-native applications in AWS.
Build and enhance React-based UI components
Collaborate with developers, business analysts, and Capital Markets stakeholders
Ensure systems are highly performant, secure, resilient, and scalable.
Participate in code reviews and engineering best practices.

Must-Have Skills

Backend Development

10+ years of enterprise Java development experience. (80%)
Advanced Spring Boot expertise.
Proven experience building and refactoring microservices architectures.
Experience designing and developing distributed, high-performance systems.

Frontend Development

Hands-on React development experience. (20%)
Comfortable contributing to frontend features and UI enhancements

Cloud & DevOps

Cloud- AWS experience (preferred)

Capital Markets Experience (if they don't have capital markets, should at least come from financial services/ retail banking).

Public Markets experience.
FX experience.
Equities experience.
Derivatives experience.
Understanding of front-office trading workflows.

Soft Skills

Strong analytical and problem-solving abilities.
Ability to work independently in a fast-paced engineering environment.
Strong communication and collaboration skills.

Nice-to-Haves

Experience with portfolio management or trading platforms.
AWS cloud-native services experience.
Mockito and automated testing frameworks.
Exposure to AI/ML concepts.
Experience working in highly regulated financial environments.

We may use AI-enabled and/or automated tools to support parts of our recruitment process, including application screening, interview scheduling, and candidate communications. These tools are used to enhance consistency and efficiency. All hiring decisions involve human review and are not based solely on automated processing.

The Company offers a total rewards package in accordance with all applicable federal, provincial, and local laws and requirements. Benefit eligibility and offerings vary based on role, employment status, and work location. For contractor positions, benefits are limited to those entitlements and protections required by applicable law, which may include (as applicable) vacation pay, public holidays, leaves of absence, and other legally mandated benefits or payments.

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More about this job

Responsibilities

Refactor a legacy monolithic application into cloud-native microservices, designing and maintaining high-performance Java and Spring Boot backend services deployed on AWS. Contribute to React UI enhancements, architecture decisions, code reviews, and collaboration with engineering and Capital Markets stakeholders to ensure secure, resilient, and scalable systems.

Requirements

Requires 10 or more years of enterprise Java development experience, advanced Spring Boot expertise, and proven experience building microservices and distributed systems. Candidates should also have hands-on React experience and relevant financial services experience, ideally including Public Markets, FX, equities, derivatives, or front-office trading workflows.

Skills

Java
Spring Boot
Microservices
Distributed Systems
React
AWS
Cloud-Native Development
System Architecture
Capital Markets
Public Markets
Foreign Exchange
Equities
Derivatives
Front-Office Trading Workflows
Mockito
Automated Testing

Benefits

Vacation Pay
Public Holidays
Leaves Of Absence
Other Legally Mandated Benefits Or Payments

Visa sponsorship

Not detected in the job text

Keywords

Java
Spring Boot
Microservices
Monolithic Application Refactoring
Distributed Systems
High-Performance Systems
React
AWS
Cloud-Native Applications
Capital Markets
Public Markets
Portfolio Management
Foreign Exchange
Equities
Derivatives
Front-Office Trading Workflows
Mockito
Automated Testing
Architecture Design
Service Boundaries
Code Reviews
Financial Services
Retail Banking
Regulated Financial Environments
AI/ML

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