WithLess in a nutshell
We are a dynamic start-up founded by two serial entrepreneurs, Gianluca Treu and Thomas Alisi. Gianluca, the CEO, has already achieved two impressive 8-figure exits with his previous ventures. Thomas, the CTO, has launched 10s of products with some of the most renowned companies out there.
WithLess is already used by 10s of the most innovative Italian companies like UnoBravo, Talent Garden, SmartPricing, Casavo, MotorK etc. If you’re craving a start-up adventure without the freefall, WithLess is your perfect match. Jump on board and help us shape the future of one of the most promising start-ups in the EU.
The Role
We’re a buzzing fintech startup with seed investment and big dreams. If you’re a code-slinging, problem-solving, roadmap-driving superstar with a knack for turning chaos into order, then you’re in the right place!
We are looking for a high-agency React Native developer to take full ownership of our mobile ecosystem. You aren’t just shipping features; you are responsible for the primary interface of our financial platform. You’ll manage everything from the React Native codebase to the native bridges for Apple/Google Pay and the biometric security layer.
What You’ll Own
The Full Lifecycle: Own the codebase, build pipeline, and App Store/Play Store presence.
Payments & Wallets: Own card provisioning/tokenization into Apple Pay & Google Pay via our custom native wallet module, plus the biometric (Keyless.io) and PIN-management flows.
Realtime Experience: Own our WebSocket layer (live backend events, in-app chat) — keeping state fresh and connections resilient across app suspend/resume.
AI-Powered Features: Build and refine our in-app AI assistant surfaces (expense and mileage chat), from streaming UX to the client-side agent flow.
Performance & Security: Ensure the app is snappy, handles sensitive financial data securely, and integrates seamlessly with our backend APIs.
Architectural Evolution: Refactor legacy shortcuts into a scalable architecture that supports rapid feature deployment without regressions.
The Profile
Technical Depth: Extensive experience with React Native, including Native Modules (Objective-C/Swift/Java/Kotlin) for wallet integrations. You aren’t afraid to go “under the hood.”
Fintech Intuition: You understand SCA (Strong Customer Authentication), card tokenization, and the nuances of payment and PIN state — and you respect how much care sensitive financial flows demand.
Systems Thinker: You’re comfortable across a multi-client API surface (typed React Query hooks, layered Axios interceptors, token refresh) and realtime WebSocket state — you can reason about the whole data pipeline, not just the screen.
Operational Excellence: You’ve managed the “pain” of App Store reviews and know how to automate releases.
AI-Native Workflow: You use agentic coding tools like Claude Code and OpenAI Codex daily to plan and implement, and know how to drive them without losing rigour.
Founder Mindset: You prefer a clean, fast-moving codebase over bloated documentation but understand that “speed” requires automated testing.
The Tech Stack
React Native (TypeScript) on Expo SDK 55 / React 19 — a deliberately modern, up-to-date stack
Custom native modules: in-house wallet bridge for Apple/Google Pay
Biometric Auth (Keyless.io)
Server state: TanStack React Query (offline-persisted via MMKV) over Axios
Client state: Zustand
Forms & validation: React Hook Form + Zod
Styling & animation: NativeWind (Tailwind) · Reanimated · Expo Router
CI/CD & release: EAS Build/Submit · GitHub Actions · Husky
Testing: Jest + Testing Library · Maestro (E2E)
If you’re ready to take the lead and make a real impact in the fintech world, we want to hear from you! Apply now and let’s build something amazing together at WithLess!
What we offer
Competitive salary
A team of fun, talented international colleagues to work and learn with.
A front-row seat to the explosive
