Open to opportunities

Modesto Rego Tejeda

@modestoregotejeda

Message

I build high-impact Android products and lead mobile platform engineering.

Spain

Message

What I'm looking for

I'm open to remote roles across the EU where I can combine hands-on Android architecture and delivery with technical leadership, platform initiatives, AI-assisted engineering, and cross-team collaboration.

At Adevinta's Milanuncios, I lead Android delivery for an app with 4M+ installs, guiding a four-engineer team and setting platform standards across a 30+ engineer European Android community. I shipped the C2B car-selling flow, which drives 33% of leads to Coches.net and contributes €4M+ in annual group revenue, while migrating CI/CD to GitHub Actions and reducing median build time by 45%.

Previously, I built investment features for ING Germany's Banking to go app, helping increase Android's share of cross-channel trades from 18% to 55%. I also build Wishfy as its co-founder and sole Android developer, and bring experience spanning Kotlin, Jetpack Compose, mobile architecture, accessibility, embedded systems, and AI-assisted engineering.

Experience

Work history, roles, and key accomplishments

Current

Senior Android Engineer / Android Enabler

Current

Adevinta Spain

Mar 2022 - Present (4 years 5 months)

One of 4 Android Enablers for a 30+ engineer European community, setting technical standards and driving shared library adoption. Led the Milanuncios Android team, architected features with Kotlin and Jetpack Compose, and owned the CI/CD pipeline, cutting build times by 45%.

Kotlin Jetpack Compose Navigation ROOM Coroutines Hilt MVVM Clean Architecture Gradle GitHub Actions Artifactory Espresso Figma

Senior Android Developer

ING Germany

Apr 2019 - Mar 2022 (2 years 11 months)

Developed native Android features for the ING Banking to go app, driving trade volume from 18% to 55% of total cross-channel trades. Achieved 4.6/5 App Store rating and contributed to accessibility compliance.

Kotlin Java Coroutines Dagger 2 MVVM Android Architecture Components Espresso Mockito Hamcrest Android Accessibility Suite

Software Engineer / Software Architect

Continental

Oct 2014 - Mar 2019 (4 years 5 months)

Designed and developed the Conti eBike System Android app with BLE and CANBus communication, deployed on a fleet of 20 eBikes. Built internal diagnostic tooling for cloud telemetry and defined security requirements.

Java Android SDK Arduino CANalyzer