Jobs in Canada

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Added 5 hours ago
CO
Senior Engineer, Quality Assurance and Integrity Management
City of Calgary
Calgary, AB
- $138,475 to $173,094 CAD / year
- Full-time
…leadership and oversight for Management of Change (MOC) and engineering governance programs. Your work will support regulatory compliance, process safety, equipment reliability, and the…
Added 5 hours ago
A
Instrumentation and Control Engineer
Airswift
Calgary, AB
- Contract
This opportunity sits within a major bitumen production and upgrader environment, supporting engineering projects focused on performance, reliability, and maintainability. The role works…
Added 5 hours ago
N
Senior Engineering Manager
Nutanix
Vancouver, BC
- $209,000 to $313,000 CAD / year
- Full-time
Site Leader for DataHub Vancouver, responsible for leading and growing a high-performing engineering team responsible for DataHub platform services, enterprise search infrastructure,…
Added 5 hours ago
P
Senior React Developer
Paymentus
Richmond Hill, ON
- Full-time
Develop and maintain unit tests, component tests, and end-to-end (e2e) tests to ensure code quality and reliability.
Added 6 hours ago
JP
Maintenance Technical Specialist, Equipment and Documentation
Jubilant Pharma Limited
Montreal, QC · Greater Montreal Metropolitan Area
- Full-time
We are seeking a Maintenance Technical Specialist, Equipment and Documentation to support equipment reliability and the continuous improvement of our maintenance program. In this role, you…
Added 6 hours ago
JP
Maintenance Supervisor
Jubilant Pharma Limited
Montreal, QC · Greater Montreal Metropolitan Area
- Full-time
We are seeking a Maintenance Supervisor to lead a team of Maintenance Technicians and ensure the reliability, safety, and compliance of our facilities, utilities, and manufacturing…
Added 6 hours ago
M
Senior / Staff Product Manager - IoT Connected Devices
Motive
Vancouver, BC
- Full-time
…Introductions from concept through mass production, own the reliability and performance of the devices already deployed, and lead the product side of our device partnerships that extend…
Added 7 hours ago
T
Platform Engineering Manager – GCP/Kubernetes
TalentWorld
Toronto, ON
- Temporary
On-site in the Greater Toronto Area, 4 days per week · Schedule: Full-time, on-site 4 days per week; start as soon as possible
Added 9 hours ago
RS
Rope Access Journeyperson Insulator
Rockwood Service Corporation
Rocky View No 44, AB · Rocky View County, AB
- Full-time
Journeyperson Insulator certification required · IRATA Level 1 certification required, or higher
Added 9 hours ago
IF
Voluntee
ILZAM for engineering and trading
Montreal, QC
- Full-time
…volunteer experiences. The organization emphasizes collaboration, reliability, and respect, ensuring that all participants can contribute in an inclusive and supportive environment.…
Added 11 hours ago
TU
Graduate Electronics Engineer
targetjobs UK
Wimborne, AB
- Full-time
Curtiss-Wright Wimborne, a Business Unit of Curtiss-Wright Nuclear, is a global engineering and design manufacturing leader with just over six decades of experience designing for heavily…
Added 13 hours ago
A
Ingénieur Mécanique / Ingénieur ILS
Actalent
MB · Saint-Laurent, MB
- $30 to $55 CAD / hour
- Contract
Environnement de travail hybride avec 3 à 4 jours par semaine sur site à Montréal, QC ou Ottawa, ON · Hybrid work schedule with 3-4 days per week on-site in Montreal, QC or Ottawa, ON
Added 13 hours ago
GC
Senior Engineering Manager, Enterprise CI for Games
Game Companies
Vancouver, BC
- Full-time
Strong understanding of DevOps and Site Reliability Engineering (SRE) principles, including reliability, scalability, security, and incident management.
Added 13 hours ago
DP
Freelance long haul driver
Dome Productions
Toronto, ON · Greater Toronto Area, Canada
- Full-time
Must have verifiable 10 years of Canadian commercial driving experience · Must reside in Canada and be a Canadian citizen or permanent resident
Added 14 hours ago
GC
Software Developer 1
Game Companies
Toronto, ON
- $73,900 to $109,360 CAD / year
- Full-time
Analyze and improve performance, scalability, reliability and measurability of system components.
Added 16 hours ago
OT
Technicien(ne) de tests / Test Technician
OPAL-RT TECHNOLOGIES India Pvt. Ltd.
Montreal, QC
- Other
Le poste est en présentiel, 5 jours par semaine
Added 18 hours ago
IT
Electrical & Instrumentation Coordinator
Irving Tissue
Toronto, ON
- Full-time
Collaborate with Operations, Engineering, and other departments to minimize downtime and maximize equipment reliability.
Added 18 hours ago
LS
DevSecOps Engineer - Permanent - 19668
LRO Staffing
Ottawa, ON
- Full-time
Domain Experience: 5+ years of hands-on platform, DevOps, SysOps, SecOps, or site reliability engineering experience supporting production software
Added 18 hours ago
I
Engineering Designer - Electrical
Integra
Harrow, ON
- Full-time
This candidate must have the ability to work in a collaborative team environment with management and production staff
Added 18 hours ago
T
AJISS - Junior Systems Engineer
Thales
Victoria, BC
- Full-time
…maintenance, Integrated Logistics Support (ILS), Program Management, Engineering and Lifecycle Material Management (LCMM), and new capabilities to numerous…
Added 19 hours ago
AE
Reliability EIT
Agnico Eagle Mines Limited
Kirkland Lake, ON
- Full-time
Strong analytical, communication and problem-solving skills, with an interest in maintenance engineering, asset management and reliability improvement;
Added 19 hours ago
P
Senior Software Engineer - Platform & DevOps
Pricepoint
Montreal, QC
- Full-time
…automatically and in real time. Our customers depend on the reliability of the systems behind that…
Added 19 hours ago
Technicien(ne) de tests / Test Technician
OPAL-RT
Montreal, QC
Le poste est en présentiel, 5 jours par semaine
Added 19 hours ago
J
Automation Manager
JLL
St. Thomas, ON
- Full-time
…distribution equipment. The role requires strong knowledge of engineering principles, programming, and control system technologies, with a focus on improving the reliability and performance…
Added 20 hours ago
O
Lead AI Developer
OpenText
Waterloo, ON
- Full-time
…that automate IT operations, reduce manual effort, and improve reliability. You’ll lead hands-on development, solve complex operational challenges, champion engineering best practices, and…

Paymentus

Senior React Developer

Richmond Hill, ON, Canada

Full-time

Apply on LinkedIn About employer

Applications open in a new tab.

Job details

Job type: Full-time
Apply by: Dec 12, 2026
Experience: 5+ years of professional experience in front-end development, with a strong focus on React.
Posting language: English
Posted: Nov 12, 2026

Original job description

Summary/Objective

We are seeking a highly skilled and experienced Senior React Developer to join our dynamic team. The ideal candidate will have a proven track record of designing, architecting, and delivering large-scale React applications using the latest development practices. You will play a key role in shaping the front-end architecture, ensuring optimal performance, and delivering high-quality, maintainable code. Additionally, you should have a keen eye for good user experience (UX), ensuring that the applications you build are not only functional but also intuitive and delightful for users. If you are passionate about building scalable, performant, and user-friendly web applications, we want to hear from you!

Essential Functions/ Responsibilities

Design, architect, and develop large-scale React applications using modern React practices (e.g., hooks, functional components, context API, etc.).
Optimize React applications for maximum performance, scalability, and maintainability.
Collaborate with cross-functional teams (designers, product managers, backend developers) to deliver high-quality features and solutions.
Write clean, reusable, and well-documented code following best practices.
Develop and maintain unit tests, component tests, and end-to-end (e2e) tests to ensure code quality and reliability.
Troubleshoot and debug issues, ensuring a smooth user experience.
Stay up-to-date with the latest trends and advancements in React and front-end development.
Mentor and guide junior developers, fostering a culture of learning and growth within the team.
Advocate for and implement user-centric design principles to ensure applications are intuitive, accessible, and visually appealing.

Required Qualifications

5+ years of professional experience in front-end development, with a strong focus on React.
Proven experience designing and architecting large-scale React applications.
Deep understanding of React build processes, including Webpack, Babel, and other related tools.
Strong knowledge of React performance optimization techniques (e.g., memoization, lazy loading, code splitting).
Solid understanding of web/internet basics (e.g., HTTP, REST APIs, browser rendering, security).
Experience writing comprehensive unit tests, component tests, and e2e tests using tools like Jest, React Testing Library, Cypress, or similar.
Proficiency in modern JavaScript (ES6+), HTML5, and CSS3.
Familiarity with state management libraries (e.g., Redux, Zustand, Recoil).
Experience with version control systems (e.g., Git).
Strong problem-solving skills and attention to detail.
Excellent communication and collaboration skills.
A demonstrated eye for good user experience (UX), with the ability to translate design concepts into functional, user-friendly interfaces.

Preferred Qualifications

Experience with TypeScript in React applications.
Familiarity with server-side rendering (SSR) and static site generation (SSG) using frameworks like Next.js.
Knowledge of CI/CD pipelines and DevOps practices.
Experience with responsive design and cross-browser compatibility.
Understanding of accessibility standards (WCAG) and best practices.
Experience working closely with UX/UI designers to implement pixel-perfect designs.

EEO Statement

Paymentus is an equal opportunity employer. We enthusiastically accept our responsibility to make employment decisions without regard to actual or perceived race,creed, color, age, sex or gender (including pregnancy, childbirth and related medical conditions), gender identity or gender expression (including transgender status), sexual orientation, national origin, ancestry, citizenship status, religion, marital status, physical or mental disability, military service or veteran status, genetic information, protected medical condition as defined by applicable state or local law, genetic information, or any other classification protected by applicable federal, state, and local laws and ordinances. Our management is dedicated to ensuring the fulfillment of this policy with respect to hiring, placement, promotion, transfer, demotion, layoff, termination, recruitment advertising, pay, and other forms of compensation, training, access to facilities and programs and general treatment during employment.

Reasonable Accommodation

Paymentus recognizes and supports its obligation to endeavor to accommodate job applicants and employees with known physical or mental disabilities who are able to perform the essential functions of the position, with or without reasonable accommodation. Paymentus will endeavor to provide reasonable accommodations to otherwise qualified job applicants and employees with known physical or mental disabilities, unless doing so would impose an undue hardship on the Company or pose a direct threat of substantial harm to the employee or others.

An applicant or employee who believes he or she needs a reasonable accommodation of a disability should discuss the need for possible accommodation with the Human Resources Department, or his or her direct supervisor.

Apply on LinkedIn About employer

More about this job

Responsibilities

Design, architect, and develop large-scale React applications, optimizing them for performance, scalability, and maintainability while delivering intuitive, accessible user experiences. Collaborate with cross-functional teams, write and maintain tests, troubleshoot issues, keep current with front-end practices, and mentor junior developers.

Requirements

Requires at least five years of front-end development experience focused on React, including experience architecting large-scale applications and strong knowledge of modern JavaScript, React build tools, performance optimization, testing, and web fundamentals. Strong problem-solving, communication, collaboration, and UX skills are required; TypeScript, Next.js, CI/CD, responsive design, accessibility, and pixel-perfect design implementation are preferred.

Skills

React
JavaScript
HTML5
CSS3
React Architecture
Performance Optimization
Webpack
Babel
Unit Testing
Component Testing
End-to-End Testing
State Management
Git
User Experience
Accessibility
Mentoring

Visa sponsorship

Not detected in the job text

Keywords

React
JavaScript
ES6+
HTML5
CSS3
Webpack
Babel
React Hooks
Functional Components
Context API
Redux
Zustand
Recoil
Jest
React Testing Library
Cypress
Unit Testing
Component Testing
End-to-End Testing
TypeScript
Next.js
Server-Side Rendering
Static Site Generation
CI/CD
DevOps
Git
REST APIs
Performance Optimization
WCAG
Responsive Design

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Work requirements

Jobs in Canada