Senior React Developer

Paymentus; Richmond Hill; On-site; CAD 80,000 - 120,000; Full time

Job summary

A leading company in the payment solutions sector is seeking a Senior React Developer to join their team in Richmond Hill, ON. The ideal candidate will have extensive experience in developing large-scale React applications and a strong focus on user experience. This role involves collaborating with cross-functional teams to deliver high-quality solutions and mentoring junior developers. If you are passionate about building scalable and user-friendly web applications, we want to hear from you!

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.
• Strong knowledge of React performance optimization techniques.

Responsibilities

• Design, architect, and develop large-scale React applications using modern practices.
• Optimize React applications for maximum performance, scalability, and maintainability.
• Mentor and guide junior developers, fostering a culture of learning.

Skills

React

Performance Optimization

User Experience (UX)

Problem Solving

Collaboration

Tools

Webpack

Babel

Git

Jest

Cypress

Next.js

Job description

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).
• Experience writing comprehensive unit tests, component tests, and e2e tests using tools like Jest, React Testing Library, Cypress, or similar.
• 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.
• 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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Senior Developer React • Richmond Hill, ON, Canada