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Felix Pablo Rigau Chiang

@felixrigau

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Senior software engineer and technical co-founder specializing in product-focused, AI-informed development.

Spain

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What I'm looking for

I seek roles where I can lead product-oriented engineering, reduce risk via pragmatic validation, collaborate cross-functionally, and scale reliable, privacy-aware software.

I am a senior software engineer and technical co-founder with 10+ years building end-to-end products for startups and enterprises, focusing on pragmatic validation, risk reduction, and leveraging AI to optimize time and costs.

At a seed-stage startup I architected and built a GDPR-compliant mobile app with React Native, Expo and Supabase, maintained <1% daily error rates across 300+ MAU, and managed releases to the App Store and Play Store while collaborating closely with legal and product stakeholders.

Previously I led frontend architecture and cross-team initiatives at a major digital banking platform, applying Hexagonal Architecture and DDD, reducing development lead time by ~50%, mentoring engineers, and driving reusable modules and code-quality standards.

Experience

Work history, roles, and key accomplishments

Current

CTO & Technical Founder

Current

PRAYFY

Jan 2024 - Present (2 years)

Architected and built the complete GDPR-compliant mobile application using React Native, Expo and Supabase, achieving <1% daily error rate across 300+ MAU and 3,000+ installs while managing store releases and authentication flows.

React Native Expo Supabase PostgreSQL Authentication GDPR Compliance Sentry

Senior Frontend Engineer

Openbank

Jan 2019 - Jan 2025 (6 years)

Led frontend architecture and cross-team initiatives for Openbank's digital banking platform, rebuilding core product pages to reduce development lead time by ~50% and establishing reusable modules and code quality standards.

React TypeScript Redux Webpack Jest Storybook DDD CI CD

Frontend Engineer

eCertic

Jan 2018 - Jan 2019 (1 year)

Developed a character recognition and biometric onboarding single-page application, contributing to frontend implementation and UX integration for secure identity flows.

JavaScript React HTML CSS Biometrics SPA Frontend Testing

Frontend Engineer

Kelisto

Jan 2017 - Jan 2018 (1 year)

Built and maintained frontend features for Kelisto's consumer-facing web properties, focusing on performance and modular UI components.

JavaScript HTML CSS React Performance Optimization

Frontend Engineer

Ingenius

Jan 2013 - Jan 2016 (3 years)

Delivered frontend implementations for web projects, collaborating with cross-functional teams to translate requirements into reliable user interfaces.