Jobs in Canada

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Added 12 hours ago
SM
RQ11688 – Systems Testing/QA Specialist – Senior
S M Software Solutions Inc
Toronto, ON
- Full-time
Work Arrangement: Onsite – 5 Days per Week
Added 12 hours ago
SM
RQ11881 – Systems Testing/QA Specialist – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
Work Arrangement: Onsite – 5 Days per Week
Added 13 hours ago
SI
Full Stack Engineer
Stelvio Inc.
Saskatoon, SK
- Full-time
We are Looking for a Intermediate Full stack Developer to join an established technology team.
Added 13 hours ago
KR
Dynamics CRM Senior Technical Architect
KTek Resourcing
Longueuil, QC
- Contract
Section Title: Must Have Skills · Must Have Skills
Added 13 hours ago
FI
Senior Support, Maintenance, and Development (.NET)
Flexstaf I.T. Inc.
Regina, SK
- Contract
…applications and integrations. The web environment uses HTML, JavaScript, CSS, XML, JSON, .NET and Angular, with applications hosted through IIS and development tooling including Azure…
Added 13 hours ago
XT
Senior DevSecOps Engineer | Mississauga, ON, Canada
Xforia Tech
Mississauga, ON
- Contract
Hands-on programming experience with Java, C/C++, Python, and JavaScript (Node.js).
Added 14 hours ago
CC
RQ11311 - Siebel Software Developer
CCI- Computer Consultants International, Inc.
Toronto, ON
- Full-time
Must Have Experience:
Added 14 hours ago
KS
Quality Assurance Automation Engineer
Kumaran Systems
Toronto, ON · Greater Toronto Area, Canada
- Full-time
Software development experience using Java, TypeScript, JavaScript, Python, or C#.
Added 14 hours ago
2I
Senior Software Developer
2iSolutions Inc.
Toronto, ON
- Contract
Our Toronto-based client is hiring a Software Developer – Senior for a 16-month onsite contract opportunity in Toronto, ON. The candidate must work onsite 5 days a week.
Added 15 hours ago
P
Senior React Developer
Paymentus
Richmond Hill, ON
- Full-time
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…
Added 16 hours ago
RM
Manager - Diagnostic Imaging
Ross Memorial Hospital
Kawartha Lakes, ON · Lindsay, ON
- Full-time
To display this page you need a browser with JavaScript support.
Added 16 hours ago
RM
M.L.T. Charge - Quality
Ross Memorial Hospital
Kawartha Lakes, ON · Lindsay, ON
- Full-time
To display this page you need a browser with JavaScript support.
Added 16 hours ago
P
Senior Azure Cloud Platform Engineer
Pinnacle
Toronto, ON
- Full-time
Proven experience with scripting languages like: PowerShell, Python, JavaScript
Added 19 hours ago
I-
Senior .NET / Mobile Application Developer
I8IS - Infiniti Software Solutions
Toronto, ON
- Full-time
Job Title: Senior .NET / Mobile Application Developer
Added 19 hours ago
CC
RQ11863 - Software Developer - CRM
CCI- Computer Consultants International, Inc.
Toronto, ON
- Full-time
Must Have Experience:
Added 21 hours ago
Q
Senior Software Developer
Quillogic
Revelstoke, BC
- Full-time
Must live in Canada and have legal authorization to work in Canada on an unrestricted basis
Added 22 hours ago
TC
EAS Senior Support, Maintenance, and Development (.NET) Resource
ThirdEye CyberSecurity
Regina, SK
- Contract
Must have a minimum of five (5) years experience in:
Added 23 hours ago
S
Assistant Bioinformatics Coordinator, S2 Up to 8 FTE
Sanya’k̓ula
Vancouver, BC
- Full-time
Added 23 hours ago
OD
Salesforce Developer
OSI Digital
Toronto, ON
- Full-time
Experience using Salesforce DX, Devops, and other advanced Salesforce developer techniques
Added 23 hours ago
RC
Oracle NetSuite Client Success Manager
RSM Canada
Vancouver, BC
- Full-time
Strong understanding of JavaScript, SQL, JSON, REST, SOAP, and XML/XSD
Added 23 hours ago
OD
Salesforce Developer
OSI Digital
Vancouver, BC
- Full-time
Experience using Salesforce DX, Devops, and other advanced Salesforce developer techniques
Added 1 day ago
SM
RQ11880 – Systems Testing/QA Specialist – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
Work Arrangement: Onsite – 5 Days per Week
Added 1 day ago
SM
RQ11881 – Systems Testing/QA Specialist – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
Work Arrangement: Onsite – 5 Days per Week
Added 1 day ago
SM
RQ11688 – Systems Testing/QA Specialist – Senior
S M Software Solutions Inc
Toronto, ON
- Full-time
Work Arrangement: Onsite – 5 Days per Week
Added 1 day ago
SM
RQ11836 – Software Developer – Senior
S M Software Solutions Inc
Toronto, ON
- Full-time
Work Arrangement: Onsite – 5 Days per Week

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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Jobs in Canada