Serhiy NikiforovOpen to work
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React Native · Solana fintech

Pyra

2025 — 2026

A Solana-based fintech app blending traditional financial services with digital assets. I joined as the first external engineer and rebuilt the React Native app from the ground up.

$4.8M+
Transaction volume processed on the platform
96×
Volume growth over 10 months
40+
Production screens shipped, from onboarding and KYC to cards and payments

Pyra is a Solana-based fintech platform that pairs a traditional banking experience — cards, virtual accounts, payments — with on-chain yield and collateralised credit. Brought on as the team's first outside hire, I took ownership of rebuilding the mobile app from the ground up.

I built and owned the core surfaces end to end: onboarding and KYC, biometric and passkey authentication, card management, virtual accounts, payments, and the portfolio and credit flows — wiring the React Native app to Solana through the Pyra Labs SDK and an embedded Privy wallet.

Alongside feature work I owned performance optimisation and release management — EAS builds, OTA updates and store submissions. Over ten months the platform scaled from roughly $50K to more than $4.8M in volume.

Screens

  • Home — net worth at a glance

  • Portfolio — on-chain yield

  • Credit — borrow against assets

  • Card — virtual payment card

  • Onboarding — get set up in minutes

  • KYC — identity verification

Tech stack

Core

  • React Native 0.81
  • Expo SDK 54
  • New Architecture
  • TypeScript
  • Expo Router

Solana & DeFi

  • @solana/web3.js
  • Pyra Labs SDK
  • JitoSOL / JLP
  • Bonfida .sol
  • viem

Auth & security

  • Privy embedded wallet
  • Passkeys (WebAuthn)
  • Face ID / Touch ID
  • Persona (KYC)
  • Apple Sign-In
  • Secure Store

Data & state

  • TanStack Query
  • Zustand

Motion & UX

  • Reanimated 4 + Worklets
  • Gesture Handler
  • gifted-charts
  • Lottie
  • Haptics

Growth & delivery

  • EAS Build + OTA Updates
  • OneSignal
  • PostHog + Session Replay
  • Crisp
  • i18next