Senior React Developer | Блокчейн

We’re looking for a Senior Frontend Engineer to help us build the next generation of Flo’s platform and user experiences.
You’ll work on the foundation that powers interactive surveys and dynamic content inside the Flo app — building SDKs, reusable components, and internal tooling that enable other product teams to deliver exceptional experiences quickly and reliably.

Our frontend stack is based on React, TypeScript, and Next.js, with a strong focus on performance, maintainability, and testing.
We care deeply about quality: we use TypeScript for type safety, Jest and Playwright for automated testing, and continuously evolve our design system and UI Kit.

What you'll be doing:

• Design, build, and maintain high-quality user-facing components and platform SDKs that enable survey and interactive experiences in the Flo ecosystem.
• Collaborate with product, design, and backend engineers to deliver flexible and scalable solutions.
• Contribute to Flo’s design system and shared UI libraries, ensuring consistency and reusability across products.
• Refactor and improve existing codebases for performance, reliability, and maintainability.
• Write clean, modular, well-documented code and advocate for engineering best practices.
• Actively participate in the frontend community at Flo, sharing ideas and driving improvements in architecture and development processes.

Your Experience

Must have:

• 7+ years of experience building, shipping, and maintaining modern web applications.
• Expert-level knowledge of HTML, CSS, and JavaScript (ES6+).
• Deep experience with React and modern frontend tooling.
• Solid grasp of object-oriented design patterns and the ability to write efficient, well-structured algorithms
• You must use AI coding agents as your default way of working — writing code manually is the exception, not the rule.
• Proven ability to create adaptive, responsive, and accessible user interfaces.
• A product mindset and strong collaboration skills — you care about how your work impacts the user.

Nice to have:

• Familiarity with Next.js, Contentful, or similar frameworks and CMS solutions.
• Experience with A/B testing and experimentation frameworks.
• Understanding of analytics and BI integrations.

Hi there! Thanks for stopping by! 👋

Are you actively looking for a new opportunity? Or just checking the market? Well… you might just be in the right place!

We are looking for a Senior Frontend Developer to join one of our squads where you will be supporting Lightspeed’s Hospitality product group on the mission to expand our reach into new markets and countries while enhancing our advanced hospitality commerce platform.
For this role specifically, you will be joining the team focused on enhancing our backoffice platform. Our mission is to empower our merchants with smooth onboarding and make it easy to configure and manage their business setup—no matter the size or complexity.

You will join a healthy and collaborative team, continuously improving our engineering practices, and delivering state-of-the-art technology, all while keeping it fun. Above all, your work will change the way the world experiences hospitality.

What you'll be responsible for:

• Working alongside some of the most brilliant minds in the industry, you will contribute to the omnichannel product by building new features and creative workflows.

• Design and create beautiful, elegant, and functional web applications.

• Your daily tasks will be split between development of new features and supporting existing integrations with our partners, while new features will dominate as we constantly open new markets.

• Report to the Team Lead of Development and have frequent interactions with Product Managers, Product Designers, and Platform Teams.

• Take part in daily agile ceremonies, brainstorm on innovative ideas that challenge the status quo, and implement solutions.

• Act as an advocate for the highest code quality and ownership while contributing to the health of the infrastructure.

• Raise the bar and elevate your team by sharing knowledge and best practices while always seeking improvement and progress.

What you'll be bringing to the team:

• Strong knowledge of JavaScript (ES6+), TypeScript and CSS-in-JS

• Knowledge of React.js, Next.js, or similar technologies

• Solid understanding of cross-browser/platform issues and solutions

• Experience developing in a back-end for frontend layer

• Familiarity with writing tests (e2e using Cypress) and ensuring the highest coding standards

• Communication skills in English

• Even better if you have, but not necessary:

• Experience in the development of mobile-first applications

• Familiarity with modern cloud infrastructures

• A keen eye for UI/UX design

• A Bachelor Degree in Computer Science or a related field

Who you are:

• We look for problem solvers that do not shy away from tackling complexity and love critical thinkers

• You have a strong will to learn, grow and get out of your comfort zone

• You have great energy and passion for technology

What’s in it for you:

Come live the Lightspeed experience...

• Ability to do your job in a truly flexible environment;

• Genuine career opportunities in a company that’s creating new jobs every day;

• Work in a team big enough for growth but lean enough to make a real impact.

… and enjoy a range of benefits that’ll keep you happy and healthy:

• Lightspeed share scheme (we are all owners)

• Flexible working policy and unlimited paid time off (yes, you read that right)

• Mental health online platform and counselling & coaching services

• ​​Health and wellness benefit

• Volunteer day to be able to give back to society!

To all recruitment agencies: Lightspeed does not accept unsolicited agency resumes. If we have not directly engaged your company in writing to supply candidates for a specific vacancy, Lightspeed will not be responsible for any fees related to unsolicited resumes.

Lightspeed is a proud equal opportunity employer and we are committed to creating an inclusive and barrier-free workplace. Lightspeed welcomes and encourages applications from people with disabilities. Accommodations are available on request for candidates taking part in all aspects of the selection process.

Where to from here?

Obviously, this has to be mutually beneficial: we want you to step into a role you love, and we want to offer you a place you’re proud to come to every day. For a glimpse into our world check out our career page here.

Lightspeed is building communities through commerce, and we need people from all backgrounds and lived experiences to do that. We were founded in 2005, in Montreal’s gay village and our original members were all part of the LGBTQ+ community. The ethos of our business has been about inclusion from the very beginning, and we strive to provide a workplace where everyone belongs.

Who we are:

Powering the businesses that are the backbone of the global economy, Lightspeed's one-stop commerce platform helps merchants innovate to simplify, scale, and provide exceptional customer experiences. Our cloud commerce solution transforms and unifies online and physical operations, multichannel sales, expansion to new locations, global payments, financial solutions, and connection to supplier networks.

Founded in Montréal, Canada in 2005, Lightspeed is dual-listed on the New York Stock Exchange (NYSE: LSPD) and Toronto Stock Exchange (TSX: LSPD). With teams across North America, Europe, and Asia Pacific, the company serves retail, hospitality, and golf businesses in over 100 countries.

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