Senior mobile engineer & tech lead

Open for 1:1 mentoringFirst call free

Become the mobile engineer teams trust to lead.

I’m Gabriel Moro. For almost a decade I’ve built Android, Kotlin Multiplatform and Flutter products used by millions — and I mentor the developers who want to grow into senior and lead roles.

15 minutes · Online · English or Portuguese

35M+
users on products I’ve shipped
100M+
app downloads
2017
building mobile since
Portrait of Gabriel Moro, smiling and wearing glasses.

Senior Mobile Engineer

M.Sc. in Computer Science · UFRGS

About

Hands-on engineering, human mentoring.

I’ve been a mobile engineer since 2017, building and leading products at scale — apps with 35M+ users and 100M+ downloads — as a senior engineer and tech lead. Today I work with Flutter and the VTEX ecosystem at Kobe.

Teaching has always been part of the job, not an extra. I’ve mentored developers, run internal workshops, spoken at GDGs and written about mobile for years. My approach is simple: less abstract theory, more code, architecture decisions and a concrete next step.

Currently

Senior Mobile Engineer · Kobe

Sep 2026 — Present

1:1 Mentoring

Guidance from someone who has already walked the path.

A few 1:1 slots open for developers who want to grow faster than they could alone — combining almost a decade of mobile in production with hands-on mentoring of Android and Kotlin Multiplatform teams.

Who it’s for

  • Mid-level developers aiming for a senior role.
  • Senior developers stepping into technical leadership.
  • Android and Flutter developers moving into Kotlin Multiplatform.
  • Anyone preparing for international hiring processes.

Not sure if it’s a fit? Start with a free intro call

What we can work on

Career
The senior and tech-lead transition, growth plans, positioning and portfolio.
Android & KMP
Compose Multiplatform, multi-module architecture and platform-specific integrations.
Architecture & quality
MVVM/MVI, modularization, testing strategy, Detekt and architectural rules.
International interviews
Technical prep, mobile system design and technical English.
AI in the workflow
Claude Code, agents and AI-assisted development, with critical review of what gets generated.
Open source & content
Shipping and maintaining libraries, building a public portfolio and creating technical content.

How it works

  1. You write

    A short email with your goal and the context you’re in today.

  2. Free intro call · 15 min

    We align expectations, check the fit and define the focus.

  3. 1:1 sessions · 1h

    Online, in Portuguese or English, with a clear action plan between meetings.

Investment and format are agreed on the intro call, based on your goal.

What you get

  • A personalized development plan with concrete next steps.
  • Code and architecture review of your projects.
  • Materials, references and exercises targeted at your goal.
  • Async support by email between sessions.

The first call is free.

Tell me where you are and where you want to go. We’ll figure out the next step together.

Book my intro call

Experience

Almost a decade shipping mobile products.

Recent roles. Earlier history on LinkedIn.

  1. Sep 2026 — Present

    Kobe

    Senior Mobile Engineer

    • Building and evolving mobile e-commerce apps with Flutter and Dart, across the full product lifecycle.
    • Improving architecture, engineering practices and automated testing for scalable, high-quality delivery.
    • Integrating with the VTEX ecosystem and supporting technical leadership, code reviews and mentoring.
  2. Nov 2023 — Aug 2026

    Ambush

    Senior Mobile Engineer

    • Core features for a cash-back app with 35M+ users, handling millions of daily transactions.
    • Led Kotlin Multiplatform (Compose Multiplatform) adoption and mentored mobile developers.
    • Feature flags, CI/CD with linting and Maestro UI tests, and architecture standards across the team.
  3. Jul 2023 — Nov 2023

    TELUS Digital

    Senior Android Engineer

    • Delivered Android features for a carrier app with 25M–35M+ active users and 100M+ downloads.
    • Mentored Android developers and built complex features with Hilt, Jetpack Compose and multi-module projects.
  4. Jul 2021 — Jun 2023

    Socialive

    Senior Android Engineer

    • Built core Android features for an enterprise video recording and livestreaming app.
    • Implemented HD local recording, low-latency capture and a dynamic multi-participant video display.
    • Worked with WebRTC, Dagger and Jetpack Components on a live production product.

Full history on LinkedIn

Toolkit

Tools I reach for.

Platforms
Android, Kotlin Multiplatform, Compose Multiplatform, Jetpack Compose, Flutter, Dart
Architecture
MVVM, MVI, multi-module architecture, SOLID, reactive programming
Libraries
Koin, Ktor, Coroutines, Room, Coil, GetX, MobX
Quality
Unit and UI testing, Maestro, Paparazzi, Detekt, architecture validation
Delivery
Gradle, GitHub Actions, Fastlane, Danger, CLI development, BuildKonfig
AI workflow
Claude Code, Open Code, agentic development

Selected work

Open source developers depend on.

Libraries and tools I created and maintain.

Popcorn Guineapig

A lightweight toolset that automates and enforces architectural guidelines in multi-module Kotlin and Android projects.

  • Kotlin
  • Detekt
  • Maven Central
View on GitHub

JujubaSVG

Granular SVG manipulation — including editing properties by ID — for Compose Multiplatform, Android and Flutter.

  • Kotlin
  • Dart
  • Maven Central
  • pub.dev
View on GitHub

EagleEye

A Dart CLI that detects architectural violations and forbidden dependency patterns in Flutter and Dart projects.

  • Dart
  • CLI
  • pub.dev
View on GitHub

MovieDB-App

A reference app for modern Compose Multiplatform and Kotlin Multiplatform, selected for Google Dev Library.

  • KMP
  • Compose
  • Dev Library
View on GitHub

Community

Sharing what I learn.

  • Talks

    GDG Groups and GDG DevFest — mobile development, architecture and Kotlin for the community.

  • Articles

    Code review, navigation and testing on Medium.

  • CodandoTV

    Technical videos, open source libraries and a podcast for the Brazilian developer community.

  • Koin Champion

    Recognized by Kotzilla for expert articles and real-world Koin use cases.