Find work in Canada.

511,348 jobs across our Canadian network. How we count

Jobs in Canada

25+ jobs

Email me new jobs Save this search

Added 21 mins ago
V
Commission Sales Representative (Simcoe County)
VettaTech
Barrie, ON
- Contract
VettaTech is a Canadian web design, hosting and custom app company based in Barrie. We build fast, custom websites and custom apps for small and mid-sized businesses, and we’re looking for…
Added 1 hour ago
LI
Software Developer
Lotus IT Solutions
Enterprise, ON
- Contract
…financial applications. This role requires strong hands-on technical skills across the full Siebel stack, combined with reporting and open UI…
Added 1 hour ago
SM
RQ11739 – Software Developer – Full Stack – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
…experience designing and developing large-scale, multi-client web applications, Java-based enterprise solutions, REST APIs, microservices, and relational database systems. The ideal…
Added 1 hour ago
LI
Software Developer - CRM - Intermediate
Lotus IT Solutions
Toronto, ON · Greater Toronto Area, Canada
- Contract
…the successful consultant will be responsible for translating technical systems specifications into working, tested CRM applications using Oracle Siebel, contributing to development,…
Added 1 hour ago
SM
RQ11599 – Technology Architect – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
…Windows Server environments. The successful candidate will lead infrastructure planning, database migrations and upgrades, middleware development and operations support, performance tuning,…
Added 2 hours ago
A
Full Stack Software Developer
ATB
Calgary, AB · Edmonton, AB
- Full-time
…truly thrive. Our Leader DNA model sets the standard for how we lead people, drive business performance, and shape a dynamic future. This is the place for purpose-driven individuals ready…
Added 2 hours ago
TU
Programmer Analyst II
The University of British Columbia
Vancouver, BC
- $8,810.92 to $13,202.5 CAD / month
- Full-time
…may also be directed and reviewed by a Delivery Manager or Technical…
Added 2 hours ago
CS
Senior Technical Architect, Application Development & Support
Canadian Standards Association
Toronto, ON
- Full-time
Acts as lead developer and technical design authority for applications in scope, setting coding standards, design patterns, branching strategy, and definition of done for internal and…
Added 3 hours ago
IC
Frontend Developer
IT Connex
Toronto, ON
- Contract
Lead technical design and implementation, ensuring solutions align with enterprise architecture standards.
Added 3 hours ago
GS
Chef de Projet Aéronautique (Intermédiaire)
Groupe SII
Montreal, QC
- Full-time
Optimize technical activities by consolidating schedules, risks and opportunities across engineering teams.
Added 4 hours ago
TU
Programmer Analyst II
The University of British Columbia
Vancouver, BC
- $8,810.92 to $13,202.5 CAD / month
- Full-time
…may also be directed and reviewed by a Delivery Manager or Technical…
Added 4 hours ago
PC
Cloud Infrastructure Engineer, Senior Associate
Pwc Canada
Ottawa, ON · Toronto, ON
- Full-time
…situations, you are growing your personal brand, deepening technical expertise and awareness of your strengths. You are expected to anticipate the needs of your teams and clients, and to…
Added 5 hours ago
S
Lead Business Consultant, Enterprise Data Management & Data Integration
SimCorp
Toronto, ON
- Full-time
Join some of the most innovative thinkers in FinTech as we lead the evolution of financial technology. If you are an innovative, curious, collaborative person who embraces challenges and…
Added 5 hours ago
T
Manager, Engineering
TD
Toronto, ON
- Full-time
We are looking for an experienced Manager, Engineering to lead a team of technology professionals responsible for delivering and supporting business-critical applications and technology…
Added 5 hours ago
AC
Digital Experience Developer, Campaign Operations
Air Canada
Dorval, QC
- Full-time
This role combines hands-on development, collaboration and continuous improvement. The developer will lead the technical execution of promotional email and web campaigns, while helping…
Added 5 hours ago
TU
Bioinformatics Specialist
The University of British Columbia
Vancouver, BC
- $8,810.92 to $13,202.5 CAD / month
- Full-time
Acts as the lead analyst/programmer for software development, and lead architect for data management and database solutions. Provides design input and strategic technical suggestions in…
Added 5 hours ago
SC
Chef de Projet Aéronautique (Intermédiaire)
SII Canada
Montreal, QC
- Full-time
Optimize technical activities by consolidating schedules, risks and opportunities across engineering teams.
Added 5 hours ago
RD
Senior DevOps Engineer (Azure Infrastructure & Platform)
Randstad Digital
Toronto, ON · Greater Toronto Area, Canada
- Full-time
…Platform Engineering role. You will report directly to the Lead Cloud Engineer and take end-to-end ownership of how cloud infrastructure, secure network architecture, and containerized…
Added 6 hours ago
CI
eCommerce Site Specialist
Carters Inc.
Mississauga, ON
- Full-time
…person should have experience creatively solving problems using technical tools and processes to support business objectives. The Site Merchandising Specialist role requires a combination…
Added 6 hours ago
BG
Coordonnateur·trice des ventes | Sales Coordinator
Brandt Group of Companies
Trois-Rivières, QC
- Full-time
Aider à l'élaboration et à la mise à jour de contenus marketing, y compris les brochures de produits, les campagnes par courriel, le contenu du site Web et les documents promotionnels.
Added 6 hours ago
Reliability Coordinator
Domtar Products
Port Mellon, BC
Reporting to the Maintenance Superintendent, the Reliability Coordinator will lead the implementation and execution of reliability excellence initiatives, applying a reliability-centered…
Added 6 hours ago
T
Frontend React DEVELOPER || Canada
TestingXperts
Toronto, ON
- Contract
Lead frontend architecture and make technical decisions aligned with business requirements.
Added 6 hours ago
JG
Technical Architect / Senior Developer – RPA & Automation
J&M Group
Toronto, ON
- Full-time
Lead technical testing, PAT/UAT support, deployment, and production validation.
Added 6 hours ago
CO
Temporary Solutions Integration Specialist (up to 8 months)
City of Saint John
Saint John, NB
- Temporary
…administration, implementation, and maintenance of the City’s website, web-based applications, software, data (including databases and interfaces), enterprise system and other…
Added 7 hours ago
UO
Programmer Analyst II
University of British Columbia
Vancouver, BC · UBCV | The Leonard S. Klinck Building (LSK)
- $8,810.92 to $13,202.5 CAD / month
- Full-time
…may also be directed and reviewed by a Delivery Manager or Technical…

IT Connex

Frontend Developer

Toronto, ON, Canada

Contract

Apply About employer

Applications open in a new tab.

Job details

Job type: Contract
Apply by: Nov 26, 2026
Posting language: English
Posted: Oct 27, 2026

Original job description

Senior Software Engineer – React / JavaScript

Location: Toronto, ON

Work Arrangement: Hybrid – 3 days per week onsite

Experience: 10+ years

Job Overview

We are seeking an experienced Senior Software Engineer with strong expertise in React, JavaScript, and modern web application development to join a team responsible for building and enhancing a large-scale Fixed Income trade processing platform.

The platform supports global trading operations across derivatives, cash products, exotics, and securities financing transactions. It processes approximately 200,000 transactions daily and provides real-time position and risk management capabilities.

In this role, you will contribute to the evolution of a next-generation trading application, focusing on modern UI/UX engineering, service-oriented architecture, automated CI/CD pipelines, and improvements to system performance, scalability, and reliability.

Key Responsibilities

Design, develop, and maintain robust, scalable, and testable web applications using React, JavaScript, HTML5, and Node.js.
Collaborate with cross-functional teams to integrate application functionality and deliver new products and process improvements.
Lead technical design and implementation, ensuring solutions align with enterprise architecture standards.
Analyze complex business and system processes to identify issues and develop innovative technical solutions.
Improve application performance, scalability, reliability, and testability through effective engineering practices.
Contribute to the transition toward smaller, modular services and fully automated CI/CD pipelines.
Establish and promote standards for coding, testing, debugging, and deployment.
Identify and implement system enhancements that improve operational efficiency and time to market.
Assess and manage technical and operational risks while ensuring compliance with applicable policies and controls.
Provide technical guidance and mentorship to mid-level developers and analysts, including coordinating development activities when required.

Required Skills and Qualifications

8+ years of experience in software application development.
Strong hands-on experience with React, JavaScript, and HTML5.
Experience with Node.js and modern web development concepts.
Strong understanding of application architecture, system integration, and software design principles.
Experience developing high-quality, testable code and troubleshooting complex application issues.
Knowledge of performance optimization, scalability, reliability, and non-functional requirements.
Experience working in large, collaborative development environments.
Familiarity with automated testing, CI/CD pipelines, and modern software delivery practices.
Demonstrated technical leadership, problem-solving, and mentoring skills.
Ability to manage competing priorities and adapt to changing business requirements.

Nice to Have

Experience with Fixed Income products, trading platforms, or capital markets applications.
Knowledge of C# and the .NET Framework.
Experience with derivatives, cash products, or securities financing transactions.
Exposure to service-oriented or microservices architectures.

Education

Bachelor’s degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
Master’s degree is preferred.

Ideal Candidate

The ideal candidate is a hands-on senior engineer with strong React and JavaScript expertise, experience building enterprise-scale applications, and the ability to lead technical implementation. Experience in financial services or Fixed Income trading platforms is an advantage.

Please note: This role requires working onsite in Toronto three days per week.

Apply About employer

More about this job

Responsibilities

Design, develop, and maintain scalable React and JavaScript applications for a large-scale fixed-income trade processing platform, while improving performance, reliability, and testability. Lead technical implementation, promote engineering and delivery standards, support modular services and automated CI/CD, and mentor developers and analysts.

Requirements

Requires 8+ years of software application development experience, strong hands-on React, JavaScript, and HTML5 skills, and experience with Node.js, architecture, integration, testing, and complex troubleshooting. Candidates should demonstrate technical leadership, mentoring, and collaboration skills; a bachelor's degree or equivalent experience is required, and a master's degree is preferred.

Skills

React
JavaScript
HTML5
Node.js
Application Architecture
System Integration
Software Design
Performance Optimization
Scalability
Automated Testing
CI/CD
Technical Leadership
Mentoring
Service-Oriented Architecture
Microservices
Fixed Income Trading

Visa sponsorship

Not detected in the job text

Keywords

React
JavaScript
HTML5
Node.js
C#
.NET Framework
Fixed Income
Trade Processing
Trading Platforms
Capital Markets
Derivatives
Cash Products
Securities Financing
Application Architecture
System Integration
Software Design
Service-Oriented Architecture
Microservices
CI/CD Pipelines
Automated Testing
Performance Optimization
Scalability
Reliability
Non-Functional Requirements
Technical Leadership
Mentoring
Enterprise Applications
Risk Management
Toronto

Report this job