About The Role
We're building the next generation of cross-border fintech infrastructure — powering payments, KYC, and global merchant experiences.
As a Senior Frontend Engineer (4–6+ years), you'll play a critical role in shaping both our frontend platform and mobile SDK ecosystem. This is not just a UI role — you'll own systems that directly impact how merchants integrate and experience our products.
You'll work across web, platform, and mobile layers (React Native / Flutter), helping us build scalable, high-performance systems from the ground up.
What You'll Do
Build Core Product Experiences
- Own and build checkout SDKs across payments, investments, and KYC workflows
- Build and maintain SDK integrations across web, mobile, and WebView surfaces used by merchants
- Contribute to shared platform concerns: design system and theming (multi-tenant / white-label), monorepo and shared packages, build tooling, observability patterns
Drive Engineering Quality
- Improve performance across the stack (Core Web Vitals, rendering, bundle size)
- Implement best practices in testing, CI/CD, code reviews, and documentation
- Collaborate closely with product, design, backend, and compliance teams
Platform + Mobile Ownership (What Makes This Role Unique)
- Own and manage React Native and Flutter SDKs (builds, releases, merchant support)
- Ensure seamless WebView compatibility across mobile checkout flows
- Set up and scale real-device E2E testing infrastructure
- Work with external partners (agencies) and gradually bring mobile capabilities in-house
- Contribute to shared components, design systems, and frontend platform infrastructure (30%)
As You Grow
- Architect scalable frontend systems (design systems, multi-tenant white-label, SDK distribution)
- Mentor engineers through code reviews and technical guidance
- Influence technical direction and tooling decisions
- Contribute to hiring and building the engineering team
What We're Looking For
Experience
- 4–6+ years of professional frontend development experience
- Strong experience building production-grade, customer-facing applications
- Solid foundation in React, TypeScript, and modern frontend architecture
- Demonstrated stability (2+ years in at least one role preferred)
Technical Strength
- Deep expertise in React (hooks, performance, composition)
- Strong TypeScript — generics, discriminated unions, inference, typing real-world data
- State management with Zustand and TanStack Query
- Vite build toolchain
- Turborepo monorepo (or willingness to ramp quickly)
- Experience with testing frameworks (Vitest, Playwright)
- Comfortable working on SDK-based architectures — versioning, publishing, consumer-facing APIs, breaking changes, graceful fallbacks
- Strong understanding of performance optimization (Core Web Vitals, lazy loading, bundle analysis)
Platform & Mobile (Core to This Role)
- Hands-on exposure to React Native, Flutter, or mobile WebViews
- Understanding of WebView / native bridges and cross-platform constraints
- Interest in building and maintaining SDKs across web + mobile ecosystems
Product & Domain
- Security-aware: comfortable working on payments and KYC flows where correctness, data handling, and cross-origin safety matter. Treats PII, tokens, and postMessage origins with appropriate care.
- Product sense: pushes back on briefs when the UX is wrong; distinguishes technically correct from right for the user
Nice to Have
- Design systems (Storybook, component libraries)
- Backend basics (REST, GraphQL, Node.js)
- DevOps exposure (CI/CD, AWS, Docker)
- Prior fintech, payments, or compliance product experience
How We Work
We're a small, high-ownership team where engineers:
- Own features end-to-end — not just tickets
- Ship fast, but with a strong focus on quality
- Work directly with founders and leadership
- Build systems that are used in real production environments
What We Value
- Ownership: takes initiative and drives outcomes
- Frontend Craft: cares deeply about performance, UX, and quality
- Pragmatism: balances speed with long-term scalability
- Curiosity: open to learning mobile and platform systems
- Honesty: clear about what they know and where they're growing
Why This Role
This is a high-impact role for engineers who want to:
- Build fintech products at scale (payments, KYC, compliance)
- Work across frontend + mobile + platform layers
- Have real ownership and influence on architecture
- Be part of a long-term, high-growth journey
