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Added 1 month ago
WF
Red Seal Certified Electrician
West Fraser
Grande Prairie, AB
- Full-time
…safely performs predictive & preventative repairs to achieve our reliability goals and maintain the mill on a day-to-day basis. Electricians are part of the site Maintenance Team entrusted…
Added 1 month ago
AN
Senior Site Reliability Engineer (SRE) – CloudVision as a Service (CVaaS)
Arista Networks
Vancouver, BC
- Full-time
We’re looking for Site Reliability Engineers to join our growing Arista’s CloudVision-as-a-Service (CVaaS) global SRE team.
Added 1 month ago
I
Operator – Hydroelectric Energy
Innergex
BC · Pemberton, BC
- Full-time
Reporting to the Senior Manager - Operations and Maintenance and/or the Site Supervisor, the Operator works in a team environment with a multi-skilled crew. They operate and maintain…
Added 1 month ago
BH
Distribution Planning Senior Engineer
BC Hydro
Burnaby, BC
- $109,700 to $138,700 CAD / year
- Full-time
…plans to ensure adequate feeder capacity, appropriate feeder reliability performance, optimized overall system performance and system loss management, and measured and prudent risk and…
Added 1 month ago
J
Data Analyst - Portfolio Performance & Optimization
Jule
Toronto, ON
- Full-time
…network. Our work spans hardware, firmware, cloud software, site deployment, and long-term asset…
Added 1 month ago
Senior / Staff Product Manager - IoT Connected Devices
Motive
Vancouver, BC
…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 1 month ago
SG
Site Maintenance Supervisor
Skeena Gold + Silver
BC
- $59 CAD / hour
- Full-time
Drive improvements in asset reliability and availability of site infrastructure systems
Added 1 month 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 1 month ago
CC
Cloud Engineer
CDW Canada
Vancouver, BC · Greater Vancouver, BC
- Contract
…requirements into secure, practical solutions for a distributed, multi-site operating…
Added 1 month ago
T
Senior Director, Canada Defence - Client & Program (ESCPP)
Telesat
Ottawa, ON
- Full-time
…government customers for over 55 years. Backed by a legacy of engineering excellence, reliability and industry-leading customer service, Telesat has grown to be one of the largest and most…
Added 1 month ago
Engineering Technician/Technologist Co-op Student
Lakeland Holding Ltd.
Bracebridge, ON
…Sundridge. Our priorities are safety, customer service and…
Added 1 month ago
CNC Operator
Spearhead
Nelson, BC
…while maintaining focus on growth and improvement. Demonstrates reliability and proactive communication while seeking…
Added 1 month ago
TM
Maintenance Material Coordinator
THOAR Mining Management Ltd.
Regina, SK
- Full-time
Coordinate expediting activities to ensure timely delivery to site.
Added 1 month ago
TM
Maintenance Material Coordinator
THOAR Mining Management Ltd.
Saskatoon, SK
- Full-time
Coordinate expediting activities to ensure timely delivery to site.
Added 1 month ago
X
Construction Safety Consultant
X/Celerant
Vancouver, BC
- $80,000 to $150,000 CAD / year
- Full-time
…customer-driven, flexible, and scalable, integrating technical engineering, operations consulting, and digital capabilities to achieve success in production and process engineering,…
Added 1 month ago
JI
Senior MLOps Developer | Développeur·euse MLOps senior
Jesta I.S.
Montreal, QC
- Full-time
…enterprise retail technology for brands with complex, multi-site operations - and we've been delivering reliable, scalable, and affordable solutions for over 55 years. Our data environment…
Added 1 month ago
E
Mechanical Package Engineer - Rotating & Process Equipment
EXP
Brampton, ON
- Full-time
Develop mechanical engineering deliverables, including package lists, equipment lists, datasheets, specifications, calculations, material take-offs, and material and equipment requisitions…
Added 1 month ago
CI
Researcher
Canadian Institute for Safety Wellness & Performance CISWP
Saskatoon, SK
- $70,000 to $80,000 CAD / year
- Full-time
On-site at CISWP office in Saskatoon; and at field collection sites across Saskatchewan
Added 1 month ago
Advanced Welding & Robotics Specialist
Aecon
Cambridge, ON
…construction of Small Modular Reactors (SMRs). Aecon's reputation for reliability, safety, and performance has made us a preferred Canadian top-tier contractor and partner of choice. Aecon…
Added 1 month ago
SI
Pre-Silicon Signoff Lead
Synopsys Inc
Mississauga, ON
- Full-time
…simulation and sign-off activities that ensure best-in-class product reliability. With your strong communication skills, you foster transparency and alignment across teams, and your…
Added 1 month ago
Senior Specialist, Systems Administration
L3Harris Technologies
Ottawa, ON
…may operate as a primary technical point of contact for your site or work collaboratively alongside peers in a shared-responsibility…
Added 1 month ago
SS
Manager, Network & Security
Sienna Senior Living
Markham, ON
- Full-time
…organization's network architecture while maintaining exceptional reliability and…
Added 1 month ago
A
Site Reliability Engineering Manager
Akkodis
Toronto, ON
- $145,000 to $170,000 CAD / year
- Full-time
Akkodis is seeking an experienced Manager, Site Reliability Engineering (SRE) to lead a team responsible for the reliability, availability, performance, and scalability of enterprise…
Added 1 month ago
G
Développeur(euse) logiciel senior/ Senior Software Developer - Security Platform
Genetec
Remote, Canada
- Full-time
- Remote
…pas autorisés à soumettre des CV par l'intermédiaire de ce site web ou directement aux…
Added 1 month ago
CI
Plant Electrical Engineer
Celanese International Corporation
Edmonton, AB
- Full-time
…of electrical assets at the Celanese Edmonton manufacturing site. The role leads reliability strategy development for medium- and low-voltage equipment supporting continuous acetyls…

Paymentus

Senior React Developer

Richmond Hill, ON, Canada

Full-time

Apply About employer

Applications open in a new tab.

Job details

Job type: Full-time
Experience: 5+ years of professional experience in front-end development, with a strong focus on React.
Posting language: English
Posted: Sep 17, 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.

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More about this job

Responsibilities

You will design, architect, and develop large-scale React applications while ensuring optimal performance and maintainability. Additionally, you will collaborate with cross-functional teams and mentor junior developers to foster a culture of growth.

Requirements

Candidates must have 5+ years of professional front-end experience with a strong focus on React and modern JavaScript. Proficiency in testing frameworks, build tools, and a demonstrated eye for user experience are essential.

Skills

React
JavaScript
HTML5
CSS3
Webpack
Babel
Jest
React Testing Library
Cypress
Redux
Git
TypeScript
Next.js
CI/CD
UX Design

Visa sponsorship

Not detected in the job text

Keywords

React
JavaScript
HTML5
CSS3
Webpack
Babel
Jest
React Testing Library
Cypress
Redux
Zustand
Recoil
Git
TypeScript
Next.js
SSR
SSG
CI/CD
DevOps
UX/UI
Accessibility
WCAG
Front-end Development
Software Architecture
Unit Testing
Responsive Design
REST APIs
HTTP
Browser Rendering
Security

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