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Added 4 mins ago
AC
Process Engineer
Allnorth Consultants Limited
AB · Grande Prairie, AB
- Full-time
We are looking for a Intermediate/Senior Process Engineer to join our team to support the delivery of process projects, primarily in the Pulp and Paper sector. As the successful candidate,…
Added 4 mins ago
RE
Construction Field Review Representative (Structural)
RJC Engineers
Vancouver, BC
- Full-time
Working under the direction of senior staff members and the Structural Engineer of Record, you will perform field review of structural components of buildings under construction
Added 19 mins ago
RG
Senior Pharmaceutical Automation Project Manager
RecruitPod Global
Pointe-Claire, QC
- Full-time
An ideal role for an experienced engineer who is rigorous, structured, and passionate about automation project management in highly regulated environments.
Added 19 mins ago
W
Intermediate/Senior Electrical Engineer
Worley
Vancouver, BC
- Full-time
Coordinating electrical engineering activities with multidisciplinary teams (process, instrumentation, mechanical, piping, automation) to ensure integrated project delivery.
Added 19 mins ago
Senior Security Engineer
Dye & Durham Talent Team
Toronto, ON
The Senior Security Engineer is responsible for advancing and protecting the organization's security posture through the design, implementation, and continuous improvement of cybersecurity…
Added 35 mins ago
C
AVP Applications Development Sr Programmer Analyst
Citi
Mississauga, ON
- Full-time
Build distributed microservices that power critical financial systems as a Senior Software Engineer, Java Microservices at Citi. You will design, develop, and implement scalable backend…
Added 35 mins ago
CH
Data Engineer
Cardinal Health
Vaughan, ON · Canada-Vaughan
- Full-time
We are seeking a Data Engineer to develop and support reliable data solutions for reporting, analytics, and business decision-making. This role works within established architecture and…
Added 35 mins ago
CH
Data Engineer
Cardinal Health
Vaughan, ON · Canada-Vaughan
- Full-time
We are seeking a Data Engineer to develop and support reliable data solutions for reporting, analytics, and business decision-making. This role works within established architecture and…
Added 49 mins ago
HT
Manufacturing Engineer (Contract)
Husky Technologies
Bolton, ON
- Full-time
Collaborate with senior engineers and external suppliers to troubleshoot and solve engineering challenges using manufacturing and design process methodologies
Added 49 mins ago
W
Senior Mechanical Engineer- Material Handling
Worley
Vancouver, BC
- Full-time
Worley is seeking a Senior Material Handling Engineer / Project Manager to provide senior-level mechanical engineering, materials handling, and project management expertise within the…
Added 49 mins ago
F
Senior Backend Engineer - Laravel & Go Microservices - On-site - Vancouver, Canada
FullStack
Vancouver, BC
- Full-time
Join our talent network and connect with U.S. clients for flexible, project-based development work as a Senior Backend Engineer - Laravel & Go Microservices.
Added 49 mins ago
AE
Director, Enterprise Applications
Associated Engineering
Vancouver, BC
- Full-time
In conjunction with other senior leadership, including Infrastructure (Digital Services Operations), provides design authority and governance for enterprise application, solution,…
Added 49 mins ago
BC
Process Engineer
Bantrel Co.
Calgary, AB
- Full-time
We are currently seeking a qualified Process Engineer to join our Energy team based in Calgary, AB. The Process Engineer will support various projects by applying process engineering…
Added 49 mins ago
E
Lead Water Resources Engineer/Sr. Modeler
EXP
Brampton, ON
- Full-time
We are seeking a highly experienced and motivated Senior Water Resources Engineer/Modeler to lead and support complex hydrologic and hydraulic modeling projects. The ideal candidate will…
Added 49 mins ago
Senior Project Manager
Gibson Energy
Edmonton, AB · Hardisty, AB · AB · Calgary, AB
As the Senior Project Manager, you’ll lead the planning and execution of larger projects and portfolio of growth and maintenance capital projects across Gibson Energy’s facilities. You’ll…
Added 1 hour ago
F
Engineering Manager, AI
Felix
Remote, Canada
- $190,000 to $240,000 CAD / year
- Full-time
- Remote
Take part in all engineering-related and business-related decisions, with the expectation that you'll grow as a leader and engineer
Added 1 hour ago
BC
Process Engineer
Bantrel Co.
Calgary, AB
- Full-time
We are currently seeking a qualified Process Engineer to join our Energy team based in Calgary, AB. The Process Engineer will support various projects by applying process engineering…
Added 1 hour ago
CN
Manager, Whiteshell Clean Up
Canadian Nuclear Laboratories
Pinawa, MB
- Full-time
Acting as a delegate for senior leadership and contributing to the achievement of broader organizational objectives.
Added 1 hour ago
PC
Senior Safety Instrumented System Engineer II
Parkland Corporation
Burnaby, BC
- Full-time
The Safety Instrumented System (SIS) Engineer is the designated owner of the refinery's Safety Instrumented Systems (SIS) program and serves as the refinery's technical authority for Safety…
Added 1 hour ago
WI
Senior Metallurgist
WSP in Canada
Toronto, ON
- Full-time
…projects, making a real impact where it matters most. As a Senior Metallurgical Engineer, you will work within a multidisciplinary team dedicated to planning and executing studies and…
Added 1 hour ago
RC
Renewable Energy Engineer (Entry-Level)
Renewable Careers
Toronto, ON
- $80,000 to $110,000 CAD / year
- Full-time
…are expanding our Toronto team and looking for an entry-level engineer who wants to help build Canada's clean energy…
Added 1 hour ago
LC
Process Engineer - Senior
Linamar Corporation
Guelph, ON
- Full-time
We are currently searching for a Senior Process Engineer where you will be responsible for supporting the manufacturing facility in the design, fabrication, modification and evaluation of…
Added 1 hour ago
Q
Senior Engineer - Telecommunications
Qualus
Calgary, AB · Vancouver, BC
- Full-time
Power your future with Qualus as Senior Telecom Consulting Engineer to join our Vancouver, BC or Calgary, AB offices to deliver critical telecommunications designs for utility clients…
Added 1 hour ago
G
Senior Design Engineer
Graymont
Calgary, AB
- Full-time
The Senior Design Engineer leads the development of complex preliminary engineering designs and provides technical leadership throughout early-stage project development. Leading a…
Added 2 hours ago
QT
Senior Systems Engineer (Linux / Ansible / Nutanix)
Quantum Technology Recruiting Inc. (QTR)
Toronto, ON
- $85 to $90 CAD / hour
- Contract
We are seeking a Senior Systems Engineer with deep Linux infrastructure expertise and strong DevOps automation experience to support major enterprise infrastructure modernization…

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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