Profile / 2026

Mobile ✦

Developer

Android · Kotlin Multiplatform · Web

I work across the whole product, from accessible Android experiences and shared Kotlin foundations to the systems behind them. If it can be open, all the better.

Fernando Obregon
Scroll to explore
01 / About

About me

I’m a developer working across Android, iOS, mainly through Kotlin Multiplatform, and the web. I enjoy creating inclusive Android apps with the same care and polish people expect from iOS, using test automation to keep them reliable as they evolve. I also write about what I learn and share it so others can build on it.

ANDROIDKOTLIN MULTIPLATFORMIOSWEBTEST AUTOMATION
02 / Practice

My experience

Android developer. Kotlin Multiplatform explorer. Web developer.

01

May 2022 — Present

Android/Web Developer

TapadooDublin

Develop and maintain Android and web applications while contributing through presentations, mentorship, and Agile delivery.

  • Android
  • Web
  • Test Automation
  • Mentorship
  • Agile
  • Developer Experience

Highlights

  • Led product initiatives with cross-functional teams from definition through release.
  • Improved internal workflows for developers, project managers, and testers.
  • Represented Tapadoo at developer conferences and industry events.
02

January 2022 — May 2022

Freelance Web Developer

IndependentPuebla

Worked directly with clients to establish requirements, shape product flows through wireframes, and deliver responsive, accessible websites.

  • Web Development
  • Design
  • Wireframing
  • Client Collaboration

Highlights

  • Turned client requirements into clear product experiences through close collaboration from discovery to delivery.
03

December 2020 — January 2022

Full-stack Developer

AccesaPuebla

Developed IoT software using real-time protocols for data visualization and device management, collaborating with users and troubleshooting software and hardware issues.

  • Full-stack
  • IoT
  • Real-time Data
  • Device Management
  • Cloud
  • Self-hosting

Highlights

  • Led the prototype and creation of a new company service with developers, designers, and clients.
  • Supported self-hosted and cloud deployments, enabling mission-critical use cases and a SaaS model.

03 / Principles

Your platform should be a choice, not a constraint.

Software should adapt to people and the ecosystems they choose, not keep them locked into one. I build inclusive, reliable products that integrate naturally with each platform and meet the same standard of quality, so changing operating systems never means accepting a lesser experience.

F/O
04 / Showcase

Showcase

Public work, shared openly

01 / Article / android-app-development

Using Biometrics for Encryption in Android

Biometric-Backed Encryption in Android Introduction One of the things that make unique mobile platforms is the security, especially when handling sensitive data. We want to ensure that it is the actual owner of the ph...

Open article
02 / Article / Engineering

How to switch between different IDEs with a single shortcut in MacOS and Raycast

Intro Similar to Josean Martinez’s Window Management Workflow , I used to use Aerospace and map a single key to a specific space where I would have a specific app or type of apps. Here’s where the issue arose: I use m...

Open article
03 / Article / Engineering

Compose Multiplatform: Displaying and Updating GeoJSON on a MapBox

Displaying and Updating GeoJSON on a MapBox in Jetpack Compose Context Recently, I needed to add a 3D Globe Map in Android for a personal project, and while I was able to successfully display GeoJSON features and poly...

Open article

One ecosystem / many shapes

Built for every screen Android becomes.

01

Phone

Focused flows and native device capabilities.

  • Compose
  • Biometrics
  • Maps
PhoneFoldTabletWatch

Web development / the other screen

From native
to the web.

Accessible, typed interfaces with an intentionally small runtime—and the systems behind them built to stay fast as they grow.
  • TypeScript
  • Astro
  • Svelte
  • Cloudflare
  • APIs
  • HTML / CSS
06 / Ask AI

Still curious?

Ask the prototype. It only knows a few answers today, but the interface is ready for a smarter brain.

Ask about me
INTERFACE DEMO / NO LIVE MODEL F/AI
AI

Hi. I'm a small preview of Fernando's future personal AI. Try a prompt.

07 / Contribution wishlist

Things I'd like to contribute to.

Open-source mobile tooling✦Privacy-first products✦Kotlin ecosystem libraries✦Better developer experience✦Useful civic technology✦Multiplatfom development✦Test automation✦Mobile development✦Open-source mobile tooling✦Privacy-first products✦Kotlin ecosystem libraries✦Better developer experience✦Useful civic technology✦Multiplatfom development✦Test automation✦Mobile development✦
08 / Activity

GitHub activity

A live view of my public contributions on GitHub, updated throughout the day.

Loading GitHub activity
github / FeernandoOFF

A little souvenir?

RESUME / ENGLISHFEERNANDOOFF.COM
01

Fernando Obregon
Mobile & web developer

Selected practice
01 / MOBILEAndroid · Kotlin · Compose · KMP
02 / WEBTypeScript · Astro · Svelte · APIs
03 / SYSTEMSSecurity · Maps · Developer tooling
04 / NOTES FROM THE WORKBENCH

Technical writing

Biometrics, Compose Multiplatform, Mapbox, UI systems, and workflows.

ME@FEERNANDOOFF.COM© 2026

A little souvenir?

Download my CV ↘
10 / Say hello

Contact

Let's build something
worth your users' time.

Products, open source, mobile architecture, or an interesting technical rabbit hole. My inbox is open.

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