Skip to main content

Fernando Pailhe

Senior Mobile Engineer — Buenos Aires, Argentina (UTC-3) · Remote worldwide

Experience

Aug 2025 — Present

React Native Developer

Techint

  • Stabilized EQM, a deprecated offline-first React Native app with no test coverage, publishing 3 releases in its first 3 months after a year with no updates.
  • Designed a JavaScript→TypeScript migration plan around a 2,000+ test suite built from zero, with >80% coverage.
  • Migrated the app's full core (166 files) from JavaScript to TypeScript with AI agents in ~1 month, with zero functional regressions.
  • Wrote coding rules and a knowledge base as shared agent context, turning ad-hoc AI use into a consistent, reviewable workflow; added 4 quality gates (lint, format, test, type-check).
  • Led the first AI agent shipped inside the product itself: a user-facing assistant for daily activity reporting.
  • Earned the client's trust early as primary liaison with cost/benefit-weighted improvements from day one, like a dynamic stepper that cut unnecessary screens from document creation; owned store releases.
React Native TypeScript JavaScript Jest AI agents

Projects: EQM

Apr 2023 — Aug 2025

Full Stack Developer

Sitio Uno · Remote

  • Spearheaded El Puma Contigo from scratch: CI workflow on Expo, with AI functionality integrated to improve user interaction.
  • Led the re-architecture of Be Soul around Redux and SOLID principles for long-term scalability.
React Native Expo TypeScript Redux

Projects: Be Soul · El Puma Contigo

Jul 2017 — Aug 2025

Filmmaker

Municipalidad de Tres de Febrero

  • Led video recording for municipal audiovisual communication — filming, structuring and scripting each piece.
  • Helped build and grow the communication team from its inception; the team became recognized as one of the best by peer institutions.
Jun 2020 — Jul 2025

Full Stack Developer

Freelance

  • HangApp: took a beta MVP to a production-ready public release, with a full UI/UX redesign and architecture overhaul.
  • PassApp: maintained and extended an Android app for 10,000+ active users (Kotlin, MVP architecture).
  • Developed Be Soul's mobile app and backend (React Native, TypeScript, NestJS, MongoDB), including OpenAI assistant integration.
  • Built a native Android prepaid-card app and migrated it to a multi-platform React Native codebase.
  • Integrated Sentry for error monitoring and Jest for automated testing across projects.
React Native Kotlin TypeScript NestJS MongoDB Firebase GCP

Projects: HangApp · PassApp · Machine Stock · Wao · Dalto Ambassadors

Nov 2021 — Mar 2023

Full Stack Developer, Part-Time

My Stadium Golf · Remote

  • Maintained and optimized an Android tablet app (Java, MVP architecture) for performance and stability.
  • Built student-app features on a hybrid React Native Expo + legacy Laravel + AWS serverless stack.
  • Extended a PHP/Laravel REST API with API Gateway, Lambda and DynamoDB; optimized image delivery via CloudFront.
Java React Native Expo PHP/Laravel AWS

Projects: Stadium platform

Jan 2011 — Jan 2020

Photographer & Filmmaker

Freelance

  • Planned shoots around available resources and adapted to last-minute changes in the field.
  • Managed client needs, schedules and small teams end to end.

Education

Mar 2008 — Sep 2014

Audiovisual Design

Universidad de Buenos Aires

Courses

  • 2021

    Basics in Kotlin for Android

    Google Developer Platform

  • 2008

    Interdisciplinary Design Workshop

    UBA & Universidad Javeriana de Colombia

  • 2002

    Microsoft Visual Basic

    Universidad Tecnológica Nacional