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Added 14 mins ago
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Senior Software Development Engineer in Test (Kubernetes)
Akamai
Canada
- $102,500 to $184,500 CAD / year
Are you passionate about delivering the core platform that enables everything-as-a-service for your fellow developers?
Added 29 mins ago
M
Customer Experience Engineer / M365
Microsoft
Toronto, ON
- Full-time
…Engineering touch point with our Strategic Customers for the M365 Platform. We are a diverse global team of highly motivated, talented and customer obsessed Service engineers who love the…
Added 44 mins ago
ES
Audio Software Engineer - EA SPORTS™ NHL
EA SPORTS
Vancouver, BC
- Full-time
As an Audio Software Engineer, you will develop and support the core technology that brings our audio experiences to life. You will collaborate closely with Audio Artists, Designers, and…
Added 59 mins ago
PM
Lead Software Engineer – Application Security & Architecture
Prospect Markets
Vancouver, BC
- Full-time
Prospect Markets is hiring a senior engineer to lead technology initiatives across our platform. You'll bring deep application security and software architecture expertise to a team…
Added 59 mins ago
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Software Developer
Cisco
Ottawa, ON · Kanata, Ontario
- Full-time
…culture that fosters continuous learning and growth, Network Platform team members work closely across Cisco’s broader networking and security portfolios to shape the future of intent-based…
Added 1 hour ago
IC
Frontend Developer
IT Connex
Toronto, ON
- Contract
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…
Added 1 hour ago
Backend Engineer, Data
Stripe
Canada
Stripe is a financial infrastructure platform for businesses. Millions of companies - from the world's largest enterprises to the most ambitious startups - use Stripe to accept payments,…
Added 1 hour ago
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Associate Customer Success Manager - French
ServiceNow
Montreal, QC
- Full-time
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 2 hours ago
S
Platform Solution Architect /Architecte de solutions de plateforme (Montreal)
Slalom
Montreal, QC
- Full-time
We’re looking for a Senior Platform Engineer to join a North America-based team focused on delivering secure, scalable automation and cloud platforms. This role is about enabling teams to…
Added 2 hours ago
OW
Oliver Wyman - Senior Lead AI Engineer
Oliver Wyman
Toronto, ON
- Full-time
…unprecedented products across industries. As a Senior Lead AI Engineer, you are primarily responsible for managing technical projects and helping teams design and build AI/ML systems and…
Added 2 hours ago
SR
Backend Engineer - Kotlin
Swim Recruiting
Vancouver, BC
- $75 to $95 CAD / hour
- Contract
As a result of growth our client is looking to hire a Kotlin software engineer to build and support its finance integration platform. You’ll work in an existing Kotlin codebase, connecting…
Added 2 hours ago
SR
Workday Application Engineer
Swim Recruiting
Vancouver, BC
- $50 to $63 CAD / hour
- Contract
6-month contract Workday Systems Engineer role with a global organization.
Added 2 hours ago
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Platform Systems Verification and Validation Engineer | Remote Opportunity | Fastwater Staffing
HIKINEX
Remote, Canada
- Contract
- Remote
We are seeking a Platform Systems Verification and Validation (V&V) Engineer to verify and validate satellite bus systems, ensuring that core infrastructure subsystems operate correctly and…
Added 3 hours ago
Software Engineer
Questrade Financial Group
Calgary, AB
We’re looking for our next Software Engineer. Could It Be You?
Added 3 hours ago
RI
Senior Forward Deployed Engineer - Java/ Python | Capital Markets
Rose International
Mississauga, ON
- Full-time
…Developer transitioning into a customer-facing, Forward Deployed Engineer (FDE)-style delivery…
Added 3 hours ago
OV
Assistant Chief Engineer | Part-Time | TD Coliseum
Oak View Group
Hamilton, ON
- $45 to $50 CAD / hour
- Part-time
Oak View Group (OVG) is the global leader in premium live entertainment infrastructure and services, with a platform spanning venue development and end-to-end capabilities across venue…
Added 3 hours ago
JC
Contact Center Operations Engineer
Johnson Controls
Toronto, ON · CAN ON Toronto Sheppard Avenue
- Full-time
Support routine platform administration, configuration updates, reporting requests, and health-check activities.
Added 3 hours ago
DC
Strategic Lead – Transportation Planning & Strategy
Dillon Consulting Limited
Guelph, ON · Hamilton, ON · Kingston, ON · Kitchener, ON · London, ON · Oakville, ON · Ottawa, ON · Toronto, ON · Vaughan, ON · Windsor, ON · North York, ON
- Full-time
…Transportation Planning & Strategy team. Designed for a planner or engineer with over 12 years of experience, this role carries a dual role: shape the market strategy to grow our…
Added 3 hours ago
S
Firmware Engineer
Solidigm
Vancouver, BC
- Full-time
In this position you will join a multi-team effort that brings up new platform using simulators for Solidigm Solid State Drives (SSD). You will utilize and grow your experience in embedded…
Added 3 hours ago
Forward Deployed Engineer
Tenstorrent
Toronto, ON
Previous experience in one of the following roles: Site Reliability Engineer, Systems Engineer, Platform Engineer, or Infrastructure Engineer.
Added 4 hours ago
EC
GCP Data Engineer
Experis Canada
Toronto, ON
- Contract
We are seeking a GCP Data Engineer with hands-on experience with Google Cloud Platform (GCP) services, particularly BigQuery, and be experienced in DBT for data transformation and modeling.
Added 4 hours ago
RD
Senior DevOps Engineer (Azure Infrastructure & Platform)
Randstad Digital
Toronto, ON · Greater Toronto Area, Canada
- Full-time
Unlike typical DevOps positions focused solely on writing CI/CD pipelines, this is a true Cloud Infrastructure & Platform Engineering role. You will report directly to the Lead Cloud…
Added 4 hours ago
MT
DevOps & Security Engineer
Martello Technologies
ON · Kanata, Ontario
- Full-time
As our DevOps & Security Engineer, you’ll own how Vantage DX and MPA are built, deployed, and secured. That means running the CI/CD pipelines, hardening our AWS and Azure environments, and…
Added 4 hours ago
FC
Senior DevSecOps Engineer
Fintel Connect
Vancouver, BC
- Full-time
As a Senior DevSecOps Engineer, you will lead the implementation and continuous improvement of cloud security, infrastructure automation, platform reliability, and DevSecOps practices…
Added 4 hours ago
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Javascript Developer
Kelly
Toronto, ON
- Contract
Role Overview: Seeking an Engineer to join its Unified Fixed Income Trade Processing (FITP) team. FITP is a global trading platform supporting derivatives, cash, exotics, and securities…

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.

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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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