Jobs in Canada

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Added 56 mins ago
FA
Methods Agent, Special Processes
FTAI Aviation
Montreal, QC
- Full-time
Collaborate with shop floor personnel and cross-functional teams (Operations, Engineering, Planning) to resolve production issues and minimize downtime.
Added 56 mins ago
HC
Embedded Systems Engineer
Horstman Canada
Brampton, ON
- $115,000 to $125,000 CAD / year
- Full-time
Conduct in-house testing and on-vehicle commissioning.
Added 57 mins ago
Senior Business Continuity Specialist
Payments Canada
Toronto, ON · Ottawa, ON
Coordinate and support the annual review of tactical response strategies and procedures owned by cross-functional stakeholders, driving the maturation of response capabilities,…
Added 57 mins ago
P
Bilingual Content Designer
PLATO
Remote, Canada
- $80 to $100 CAD / month
- Contract
- Remote
PLATO is one of Canada's leading software testing services firms, driven by the mission of building a stronger, more inclusive technology workforce. While we are proudly Indigenous-led and…
Added 1 hour ago
GD
QMS Auditor
General Dynamics Land Systems–Canada
London, ON
- Full-time
Coordinate with functional leads in accordance with GDLS-Canada ISO Quality, Environmental, Heath & Safety and Energy (QEHSEn) System.
Added 1 hour ago
M
Senior Android SDK Developer
MapsPeople
Toronto, ON
- Full-time
…closely with other SDK engineers, platform teams, and cross-functional stakeholders to keep our mobile initiatives cohesive, scalable, and…
Added 1 hour ago
P
Senior React Developer
Paymentus
Richmond Hill, ON
- Full-time
…(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…
Added 1 hour ago
A
Interaction/Visual Designer - Advanced [AQ-26412]
Aquent
Montreal, QC
- $50 to $53 CAD / hour
- Contract
…future of digital offerings. By collaborating closely with cross-functional teams and stakeholders, you will navigate an iterative design process from initial concept to successful…
Added 1 hour ago
MB
Business Analyst/ Analyste d'affaires
Maison Battat Inc.
Montreal, QC
- Full-time
Gather, analyze, and document business, functional, and data requirements.
Added 1 hour ago
CS
Clinical Exercise Physiologist
Canadian Society for Exercise Physiology (CSEP) Société canadienne de physiologie de l’exercice SCPE
Victoria, BC
- Full-time
Conduct comprehensive cardiopulmonary exercise testing including VO2 max assessments, and cardiac stress tests
Added 1 hour ago
TI
RPA & Power Platform with BSA
Themesoft Inc.
Toronto, ON
- Contract
Define clear use cases, acceptance criteria, test conditions, and expected results for functional, UAT, performance, and operational testing.
Added 2 hours ago
HT
Director, Finance (CSM)
Husky Technologies
Bolton, ON
- Full-time
Lead cross-functional evaluation of new service offerings, business models, and transformation initiatives that improve service coverage, utilization, fulfillment, cost efficiency, and…
Added 2 hours ago
HT
Director, Global Marketing & Sales Enablement
Husky Technologies
Bolton, ON
- Full-time
Added 2 hours ago
L
Senior AI/ML Engineer
lululemon
Vancouver, BC
- Full-time
…athletic pursuits. Setting the bar in technical fabrics and functional design, we create transformational products and experiences that support people in moving, growing, connecting, and…
Added 2 hours ago
T
IT Solutions Architect – Box Platform
TalentWorld
Toronto, ON
- Temporary
Lead enterprise projects from detailed design to production, including data integrations, testing and deployment
Added 2 hours ago
V
Senior Software Engineer
Virtusa
Mississauga, ON
- Full-time
p2c3stsAdditional QA support is required to assist with functional, regression, and end-to-end testing to help reduce testing bottlenecks and ensure timely project delivery while the team…
Added 2 hours ago
N
Optical Coherent System Engineer
Nokia
Ottawa, ON · Kanata, ON
- Full-time
Active member of the cross-functional product development team involving software, electronics, optics, and test
Added 3 hours ago
RB
Sr Mgr, Cred Risk Acquisition
Rogers Bank
Toronto, ON
- Full-time
…advanced analytics through strategy design, implementation, testing, and ongoing performance monitoring. The successful candidate will play a key leadership role in balancing portfolio…
Added 3 hours ago
BI
Field Service Representative,
Baxter International Inc.
AB · Edmonton, AB
- Full-time
Work effectively with FS Regional Manager, Field Service Representatives, and other functional areas within the company to enhance business performance and customer experiences.
Added 4 hours ago
M
RQ00838 - Solution Architect - CRM - Senior
Maarut
Toronto, ON
- Contract
cross-functional technical teams, including application development,
Added 4 hours ago
LH
Kinesiologist
Lifemark Health Group
Airdrie, AB
- Full-time
Perform biweekly reassessment of client progress through functional testing
Added 4 hours ago
LH
Kinesiologist
Lifemark Health Group
Calgary, AB
- Full-time
Perform biweekly reassessment of client progress through functional testing
Added 4 hours ago
LH
Kinesiologist
Lifemark Health Group
Calgary, AB
- Full-time
Perform biweekly reassessment of client progress through functional testing
Added 4 hours ago
GC
Operations Product Manager Co-Op
Game Companies
Vancouver, BC
- Full-time
…products. This position requires close collaboration with cross-functional stakeholders to standardize product reporting templates and project decks, ensuring they consistently meet a high…
Added 5 hours ago
I-
Senior .NET / Mobile Application Developer
I8IS - Infiniti Software Solutions
Toronto, ON
- Full-time
Experience with unit, performance, and load testing.

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