MidSenior Frontend Engineer – ReactJS

About Us

Hello Clever is building the next generation of payments infrastructure by turning every transaction into growth for merchants. Were an AI-powered fintech operating across 22 markets helping businesses move money in real time and convert payments into measurable outcomes like higher repeat rates bigger baskets and smarter customer engagement. Our platform combines local account-to-account rails embedded cashback & loyalty products and powerful data intelligence (Clever AI) so merchants can launch offers optimise ROI and scale faster all through a single integration.

Weve been named Australias fastest-growing fintech listed in Top 100 Forbes Asia and the AFR Fastest-Growing Companies and selected for Inc. Magazines Best in Business.

Role Focus

This is a Mid/Senior Frontend Engineering role focused on building and evolving production-grade React web applications with React and TypeScript as the core technologies. You will own frontend architecture and help shape engineering standards across the products you work on.

This is a full-time hybrid role based in Ho Chi Minh City with occasional in-person catch-ups at our office and no fixed office days. You will work Vietnam business hours with availability to join regular meetings with our US team outside those hours.

Responsibilities

• Design build and maintain accessible responsive React experiences across our payment merchant dynamic checkout and internal operations products.
• Own frontend architecture across the codebase including application structure state management data flow component boundaries API integration and dependencies. Surface architectural performance and reliability risks early.
• Establish reusable patterns shared components and engineering standards across products and teams.
• Act as the technical point of contact for frontend decisions with US-based stakeholders and raise the quality bar through code review pairing and guidance.
• Implement complex flows involving payments multi-currency experiences asynchronous states retries failures validations and edge cases.
• Improve performance reliability accessibility security and maintainability across the frontend codebase.
• Investigate production issues support root-cause analysis and help prevent recurring problems.

Requirements (Must Have)

• 3 years of frontend engineering experience with proven ownership of production-grade React applications shipped end to end.
• Strong hands-on experience with React and TypeScript plus solid fundamentals in JavaScript HTML CSS browser APIs responsive layouts and accessibility.
• Strong understanding of frontend architecture covering component design state management data flow API integration and application structure with the judgment to balance trade-offs and evolve existing systems without unnecessary complexity.
• Experience acting as a technical anchor on a team: driving architecture decisions establishing reusable patterns and standards and lifting code quality through review and guidance.
• Experience integrating with REST APIs strong debugging skills using browser DevTools and performance tooling and a good understanding of unit integration and end-to-end testing.
• Clear written and verbal English communication with the ability to work independently across distributed teams.
• Available to New York hours (maximum 15 hours per week EDT (GMT-4))
• Available to join regular meetings with our US team outside Vietnam business hours

Nice to Have

• Experience with or similar ReactJS frameworks.
• Experience building or maintaining design systems and reusable component libraries.
• Payment fintech banking marketplace or e-commerce experience including PCI-aware frontend practices.
• Experience with Playwright Cypress Jest React Testing Library or similar testing tools.
• Experience with React Native or mobile-first product development.
• A disciplined approach to AI-assisted development using tools like Cursor Claude Code or GitHub Copilot without letting review standards slip.

Why Join Hello Clever

• High-growth fintech: Help shape the future of real-time payments and merchant growth infrastructure live in 22 markets.
• Meaningful technical challenges: Build experiences that support real money movement reliability and scale.
• Room to grow: The frontend team is being built from the ground up with real scope to expand your technical influence over time.
• Dynamic culture: A results-driven team that values innovation ownership and collaboration.

How to Apply

Heres what to expect:

• Phone screen: A conversation with our HR team covering your experience motivation and English communication.
• Technical interview: A technical discussion with our Engineering Lead covering your frontend experience architecture decisions youve owned and how you approach problems.
• Leadership interview: A final conversation with our Head of Engineering and Head of Product on collaboration ownership and how you would contribute to the team.

Sound like you Lets talk. Drop us a note at

Direct applicants only no agencies.