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Added 1 month ago
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Java Consultant
Delpath
Toronto, ON · Scarborough, ON
- Contract
The ideal candidate would be an experienced Full Stack Java Developer with strong experience with Java, React, Kafka and SQL. Excellent communication skills, problem-solving and…
Added 1 month ago
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Junior Software Developer - Mission Control
Solace
Ottawa, ON
- Full-time
…increasingly, customer-managed environments. As a Junior Software Developer on the Mission Control squad, you'll build the APIs and operational tooling that keep thousands of production…
Added 1 month ago
Senior Frontend Developer (React Native)
HelloFresh
Toronto, ON
As a Senior Frontend Developer with a strong focus on React Native, you’ll join a cross-functional team building features that empower both customers and internal stakeholders. You’ll…
Added 1 month ago
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Manager, Engineering
Trulioo
Remote, Canada
- Full-time
- Remote
Experience with the following tools/technology: Swift, Kotlin, React, TypeScript, React Native, and Kotlin Multiplatform.
Added 1 month ago
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Application Architect
Pollard Digital Solutions
Winnipeg, MB
- Full-time
…Software Engineering, Product Management, Quality Assurance, and Developer Operations teams to guide solution design, uphold architecture standards, and support delivery through the full…
Added 1 month ago
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Mgr, IT / Gestionnaire, TI
TD SYNNEX
Mississauga, ON
- Full-time
Exposure to DevSecOps principles, application security best practices, and cloud-native architectures.
Added 1 month ago
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Junior Software Developer - Mission Control
Solace Corporation
Ottawa, ON
- Full-time
…increasingly, customer-managed environments. As a Junior Software Developer on the Mission Control squad, you'll build the APIs and operational tooling that keep thousands of production…
Added 1 month ago
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Staff Software Engineer
Okta
Toronto, ON
- $160,000 to $220,000 CAD / year
- Full-time
Design, build, and maintain end-to-end features using modern JavaScript and cloud-native technologies (React, Node.js, TypeScript, PostgreSQL).
Added 1 month ago
Staff Software Engineer
Okta
Toronto, ON
Design, build, and maintain end-to-end features using modern JavaScript and cloud-native technologies (React, Node.js, TypeScript, PostgreSQL).
Added 1 month ago
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Technical Lead, Innovation
Croesus
Laval, QC
- Full-time
…customers to find out what's real. Some of those bets are AI-native. A lot of them aren't; platform work like core next-generation features live here too. What's constant is that we're…
Added 1 month ago
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Technical Lead, Innovation
Croesus
Montreal, QC
- Full-time
…customers to find out what's real. Some of those bets are AI-native. A lot of them aren't; platform work like core next-generation features live here too. What's constant is that we're…
Added 1 month ago
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Builder - Mobile (Platform), Ring
Amazon
Toronto, ON
- Full-time
…wants to go deep - whether that's modern Swift and Kotlin or React Native paired with strong native fundamentals - using the latest platform APIs, clean architecture, and the kind of…
Added 1 month ago
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Thanks for visiting our Job Board. Please review our open positions and apply to the positions that match your qualifications.
Evertz
Burlington, ON
- Full-time
2+ years of experience with at least one MVC framework (Vue.js, React, or Angular)
Added 1 month 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 1 month ago
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Java Developer (React)
Collabera
Toronto, ON
- $90 to $102 CAD / hour
- Contract
…deep expertise in Java development while also contributing to React-based UI…
Added 1 month ago
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Software Developer
Evertz
Burlington, ON
- Full-time
2+ years of experience with at least one MVC framework (Vue.js, React, or Angular)
Added 1 month ago
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Software Developer
Evertz Microsystems Limited
Burlington, ON
- Full-time
2+ years of experience with at least one MVC framework (Vue.js, React, or Angular)
Added 1 month ago
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Senior software developer
Raenan Consultancy
Toronto, ON
- Full-time
Added 1 month ago
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Senior Frontend Engineer
Arkion Identity Systems
Toronto, ON · Greater Toronto Area, Canada
- Full-time
…hire, you'll take full ownership of the UI layer of a cloud-native platform: dashboards, reporting, inventory management, and core user flows. This is a greenfield project: you'll be…
Added 1 month ago
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Software Engineer - Mobile App (Expo/React Native)
TopHat HR
Markham, ON
- $95,000 to $105,000 CAD / year
- Full-time
Your initial focus will be on building and shipping an Expo/React Native application to both the App Store and Google Play. As you grow in the role, you'll take on increasing ownership of…
Added 1 month ago
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Forward Deployed Developer
Urban Ridge Supplies
Toronto, ON
- Full-time
You will work on a cloud-native wealth management platform built on Go microservices, a Next.js micro-frontend portal, and a PostgreSQL data layer. The platform exposes REST APIs for…
Added 1 month ago
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Senior Software Engineer - Applied AI
Urban Ridge Supplies
Toronto, ON
- Full-time
Feathery is building an AI-native product experience - from a conversational workflow builder that creates complex forms and logic on behalf of users, to intelligent document extraction and…
Added 1 month ago
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Forward Deployed Agile Software Engineer
Urban Ridge Supplies
Toronto, ON
- Full-time
Mobile & Web Development: (iOS, Android, React Native, React, Node.js)
Added 1 month ago
UR
Senior Agentic Engineer - JavaScript
Urban Ridge Supplies
Toronto, ON
- Full-time
Mobile & Web Development: (iOS, Android, React Native, React, Node.js)
Added 1 month ago
UR
Forward Deployed Agile Software Engineer
Urban Ridge Supplies
Toronto, ON
- Full-time
Mobile & Web Development: (iOS, Android, React Native, React, Node.js)

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
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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