Jobs in Canada

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Added 16 days ago
IC
Frontend Developer
IT Connex
Toronto, ON
- Contract
Work Arrangement: Hybrid – 3 days per week onsite · Please note: This role requires working onsite in Toronto three days per week.
Added 16 days ago
directeur.trice de la conception de l’engagement des joueurs / Engagement Design Director
Electronic Arts
Vancouver, BC · Montreal, QC
Added 16 days ago
OI
UI Programmer
Offworld industries
New Westminster, BC
- $85,000 to $100,000 CAD / year
- Full-time
Added 16 days ago
EI
UX Designer
ExcelGens, Inc.
Bas-Saint-Laurent, QC
- Contract
Added 16 days ago
Y
iOS Developer
Yochana
Mississauga, ON
- Contract
We are seeking a skilled iOS Developer with a strong background in Swift and SwiftUI to join our dynamic team. The ideal candidate will have hands on experience in mobile application…
Added 16 days ago
RI
Senior Full-Stack Java Developer (Kafka/ Angular)
Rose International
Mississauga, ON
- Full-time
Seeking a Senior Full Stack Java Developer to join a technology team supporting applications and digital solutions within the Banking / Financial Services domain.
Added 16 days ago
RI
Senior Software Development Engineer in Test (SDET)
Rose International
Mississauga, ON
- Full-time
AWS / GCP Cloud Architecture or Developer Certifications.
Added 16 days ago
C
Web Developer
Cohere
Remote, Canada
- $180,000 to $250,000 CAD / year
- Full-time
- Remote
Added 16 days ago
SI
ULUX Designer
Spait Infotech
Canada
- Full-time
Added 16 days ago
K
Solutions Architect
Kelly
Toronto, ON
- Contract
Added 16 days ago
D
Senior SDET / Quality Engineering Lead/Architect
Droisys
Brampton, ON
- Contract
Added 16 days ago
SI
AI Product Owner
Supra ITS
Mississauga, ON
- Full-time
The no-code UI agent builder experience - what a non-developer can safely build, and what requires engineering
Added 16 days ago
RI
IOS mobile testing
Raas Infotek
Vancouver, BC
- Contract
Added 16 days ago
K
Javascript Developer
Kelly
Toronto, ON
- Contract
Job Title: Senior React / JavaScript Developer
Added 16 days ago
K
Software Engineer in Test
Kelly
Mississauga, ON
- Contract
Added 16 days ago
PC
Senior Software Development Engineer in Test (SDET) / Quality Engineering Architect
Pyramid Consulting, Inc
Mississauga, ON
- $70 to $79 CAD / hour
- Contract
Certifications such as Certified Software Test Architect, AWS/GCP Cloud Architecture, or Java SE Professional Developer Certification are advantageous.
Added 16 days ago
D
React.js Engineer Toronto Canada/ Hybrid
Damcosoft
Toronto, ON
- Contract
Added 16 days ago
T
Frontend React DEVELOPER || Canada
TestingXperts
Toronto, ON
- Contract
Experience profiling and optimizing frontend performance using browser developer tools.
Added 16 days ago
AS
Backend Developer
Axelon Services Corporation
Montreal, QC
- $65.52 CAD / hour
- Other
Added 16 days ago
S
Software Engineer (Unpaid)
Spawn
Canada
- Temporary
Added 16 days ago
AI
RPA UiPath Developer..
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
- Full-time
Hybrid (2 days per week in-person at Toronto office preferred)
Added 16 days ago
D
Software Engineer in Test
Dexian
Mississauga, ON
- Other
Added 16 days ago
D
Software Engineer in Test
Dexian
Mississauga, ON
- Contract
Added 16 days ago
MI
Director of Product
Method Integration Inc.
Remote, Canada
- Full-time
- Remote
Added 16 days ago
Software Engineer - New Grad (2027 Start)
Databricks
Vancouver, BC

IT Connex

Frontend Developer

Toronto, ON, Canada

Contract

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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 on LinkedIn 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

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Jobs in Canada