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Added 16 days ago
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Senior Full-Stack Developer [Security & Risk Products]
ScalePad
Vancouver, BC
- Full-time
As a Senior Full-Stack Developer, you will be responsible for developing entirely new products and innovating within our existing technology stack. This will involve research, analysis,…
Added 16 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 17 days ago
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Senior Software Engineer (Full Stack)
Workday
Vancouver, BC · Canada, BC, Vancouver
- Full-time
Agent Factory is where Workday’s next chapter gets built. We’re forming small, senior, cross-functional AI teams that bring together product leaders, machine learning engineers, and…
Added 17 days ago
RL
Quality Assurance Automation Engineer
RedCompass Labs
Toronto, ON
- Full-time
Build and maintain automated tests across the full stack – UI, API, middleware and message layers – covering component, integration and end-to-end transaction flows
Added 17 days ago
RL
Java Software Engineer
RedCompass Labs
Toronto, ON
- Full-time
Its flagship Payments Expert Agent is an AI solution purpose-built for the full payments modernization software development lifecycle. Trained on decades of deep payments expertise and more…
Added 17 days ago
UR
Forward Deployed Engineer (FDE) (Mid/Senior Level)
Urban Ridge Supplies
Toronto, ON
- Full-time
You have 3+ years (6-10 years for Senior levels) of software engineering or technical delivery experience, with at least one production system you'd be proud to walk us through - ideally in…
Added 17 days ago
UR
Forward Deployed Engineer (FDE) (Mid/Senior Level)
Urban Ridge Supplies
Toronto, ON
- Full-time
You have 3+ years (6-10 years for Senior levels) of software engineering or technical delivery experience, with at least one production system you'd be proud to walk us through - ideally in…
Added 17 days ago
UR
Software Engineer - Team Lead (Forward Deployed)
Urban Ridge Supplies
Mississauga, ON
- Full-time
…drive value. While you may have natural specialties, we expect full-stack capability accelerated by AI - no dedicated frontend, backend, or DevOps…
Added 17 days ago
UR
Senior Software Developer, Full Stack, Applied AI Agent Studio
Urban Ridge Supplies
Toronto, ON
- Full-time
3 years of experience with full stack development, across back-end such as Java, Python, Golang, or C++ codebases, and front-end experience including JavaScript or TypeScript, HTML, CSS or…
Added 17 days ago
UR
Principal Quality Architect
Urban Ridge Supplies
Toronto, ON
- Full-time
…production features. The role blends test engineering with full-stack development: you'll help build the systems and the safeguards that prove they work. You'll apply agentic development…
Added 17 days ago
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Senior Full Stack Engineer (Azure Cloud Platform)
HCLTech
ON · Ontario, Canada
- $60 to $75 CAD / hour
- Contract
We are looking for a hands-on Senior Cloud-Native Full Stack Engineer to design, build, and support secure, scalable applications on Microsoft Azure. This role combines modern full-stack…
Added 17 days ago
Software Development Engineer, Senior Leader Experiences - Workforce Planning
Amazon
Vancouver, BC
As part of the Amazon-wide Amzonian Leadership Experiences team, the Senior Leadership team’s mission is to build workforce planning application suite. We develop philosophies, mechanisms…
Added 17 days ago
Senior Full-Stack Angular / Java
Spiria
Toronto, ON · Montreal, QC · Gatineau, QC
We are seeking a Senior Full-Stack Developer with strong expertise in Angular, TypeScript, and Java to design and deliver high-quality web applications for our clients. You will be a…
Added 17 days ago
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Senior Software Engineer I
Braze
Toronto, ON
- Full-time
5+ years of full-stack development experience
Added 18 days ago
Senior Software Engineer I
Braze
Toronto, ON
5+ years of full-stack development experience
Added 18 days ago
TC
Senior Software Engineer – Java, React & AWS
Tata Consultancy Services
Toronto, ON
- $100,000 to $120,000 CAD / year
- Full-time
…is enabling its clients to transform themselves across the full AI stack, from infrastructure to…
Added 18 days ago
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Senior Full Stack Developer (Java/React)
Luxoft
Toronto, ON
- Full-time
Experience in Java in an enterprise environment, covering the whole development life cycle
Added 18 days ago
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Senior Software Engineer, PAM
Okta
Toronto, ON
- $136,000 to $187,000 CAD / year
- Full-time
We're looking for a Senior level Platform Engineer to join a team of highly skilled and talented team players who are proud of what they own and deliver. Our elite team is fast, creative,…
Added 18 days ago
Senior Software Engineer, PAM
Okta
Toronto, ON
We're looking for a Senior level Platform Engineer to join a team of highly skilled and talented team players who are proud of what they own and deliver. Our elite team is fast, creative,…
Added 18 days ago
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Senior Full Stack Developer (Java/React)
Luxoft
Toronto, ON
- Contract
Experience in Java in an enterprise environment, covering the whole development life cycle
Added 18 days ago
TC
Senior Software Engineer – Java, React & AWS
Tata Consultancy Services
Toronto, ON
- $100,000 to $120,000 CAD / year
- Full-time
…is enabling its clients to transform themselves across the full AI stack, from infrastructure to…
Added 18 days ago
L
Senior Full Stack Developer (Java/React)
Luxoft
Toronto, ON
- Contract
Experience in Java in an enterprise environment, covering the whole development life cycle
Added 18 days ago
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Senior Full Stack Developer – Java / Angular
ThoughtStorm
Toronto, ON
- Contract
Strong experience with Full Stack development, solution architecture, REST APIs, SQL, and relational databases.
Added 18 days ago
PG
Senior Java Software Engineer
Pacer Group
Toronto, ON
- $130,000 to $135,000 CAD / year
- Full-time
full-stack development expertise with hands-on experience in Java, Angular/React, and REST APIs.
Added 18 days ago
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Applications Development Sr Programmer Analyst- AVP -Mississauga
Citi
Mississauga, ON
- Full-time
The Applications Development Senior Programmer Analyst is a pivotal technical professional who sits at the intersection of engineering excellence and enterprise impact - a builder,…

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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