Open to Staff / Senior roles

Gabriel Fernandez

Senior Software Engineer

I build things people use every day — apps, backends, and the tooling that ties them together. Two-time founder, senior engineer for a decade, happiest turning messy problems into clean, reliable software.

Mobile · Backend · Web AI-Native Builder

// stack

01

About

I'm an engineer who works comfortably across the whole business and cares most about actually delivering — turning complex, ambiguous problems into products people can rely on.

I like working across engineering, product, and design, and I've found that real impact comes from a bias toward shipping — getting something reliable in front of users and improving from there.

I enjoy hard problems, and I lean on A/B testing: I'd rather ship a small experiment and let real usage guide the call than argue it in the abstract. It shapes how I build — mobile apps, backends, and the experimentation that helps a team decide with data.

0+
years shipping software
0K+
users on apps I've built
$0M
generated in a quarter
0
products built 0→1
02

Selected work

// 01

Developer platforms & tooling

Built internal platforms and developer tooling adopted across the mobile org — type-safe, code-generated APIs, large migrations, and debug tools that raise reliability and team velocity.

→ Org-wide adoption · zero production incidents
KotlinPlatformToolingArchitecture
// 02

Mobile features at scale

Shipped consumer mobile features end-to-end — algorithm design, extensive automated testing, and close iOS/Android collaboration — setting the quality benchmark across platforms.

→ Reaching hundreds of thousands of users
AndroidAlgorithmsTesting
// 03

Maps & real-time data

Integrated real-time data into live, interactive map experiences using spatial indexing and clustering — delivered reliably through shifting cross-team constraints.

→ Real-time · large-scale · cross-team
MapsSpatialReal-time
// 04

Waonder

AI travel companion — “talk to the places around you.” Discover cities through location-aware, AI-powered stories and Q&A, on native Android & iOS with a NestJS backend.

→ Live on Google Play · iOS coming soon
NestJSAndroidiOSAI / RAG
03

Applications developed

04

Experience

Now
Founder · Full-Stack & Cross-Platform Engineer
Waonder · waonder.app ↗

AI travel companion — “talk to the places around you.” Backend (NestJS) plus native cross-platform mobile, building the Android and iOS apps and their services end-to-end.

NestJS · Node · Kotlin · Swift · Android · iOS · AI/RAG
2022 — Now
Senior Software Engineer II · Android
Life360

Senior mobile engineering across platform, developer tooling, and product features; formal interviewer for Senior/Staff candidates.

Kotlin · Jetpack Compose · Coroutines · Testing · CI/CD
2019 — 2022
Senior Software Engineer
Univision

Architected & built the SVOD/AVOD streaming products — ViX, TUDN, Noticias — owning performance and scalability.

React · React-Native · TypeScript · Node · GraphQL · AWS
2019
Co-Founder · Android
Kantina

Co-founded a weekly meal-planning product — defined the architecture and built the Android app end-to-end.

Android · Kotlin · Jetpack
2018 — 2019
Senior Software Engineer · Full-Stack
Telaclaims

Built an insurance claims-processing system from scratch — architecture, CI/CD, microservices, cloud integrations.

React-Native · HapiJS · Node · AWS · GCP · Event Sourcing
2016 — 2018
Software Engineer · Full-Stack
Blackstone MS

Cross-platform POS apps & back-end services; integrations with Clover POS and SII printers.

C# · ASP.NET · AngularJS · Node · SQL
2015 — 2016
Software Engineer · Full-Stack
Linbis

Front-end app and back-end services for a freight-forwarding web application.

C# · ASP.NET · TypeScript · Angular · TDD
05

Entrepreneurship

// Founder · current

Waonder

Founder-led AI travel companion — “talk to the places around you.” Location-aware, AI-powered stories and Q&A about the cities you explore, on native Android & iOS with a NestJS backend.

→ Live on Google Play · iOS coming soon
// Founder · current

HexBid

Founder-led geospatial marketplace — “own the map, one hexagon at a time.” A world map of H3 hexagon cells you bid to own, with the top bidder's brand shown in each cell. Pay-to-rank auctions, built end-to-end.

→ Live · MapLibre · H3 · Firebase · Stripe
// Co-founder

Kantina

Co-founded a product to plan weekly meals from nearby restaurants — defined the architecture and built the Android app end-to-end.

→ 0→1 product · Android · Kotlin
FounderAndroidKotlin
// Co-founder

Prodis — Rapido Etecsa

Co-founded and built one of Cuba's most popular Android apps from scratch — created, distributed, and maintained it as it grew to hundreds of thousands of users.

→ ~500k users · 2014–2016
FounderAndroid0→1
06 — Contact

Let's build
something reliable.

Open to Staff and Senior engineering roles, and interesting problems in mobile, platforms, and developer experience.