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Hannah Weber

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VP of Engineering, Ripple Systems - Coroutines · Android performance · MVVM

Works at
Ripple Systems
Location
Berlin, Germany · CET (UTC+1)
Experience
7+ years experience
Education
Sorbonne University
Languages
English, German
Hiring
Message Connect

Overview

Currently at Ripple Systems, where I lead mobile apps with a team of 30. Shipped a rewrite that took build times from 32 minutes to under 3. Before that: Zalando and Philips.

Good reasons to reach out
  • Candidates for the role I'm hiring for
  • Questions about mobile apps
  • Working sessions on Jetpack Compose
Please don't message about
  • Crypto token projects
  • Courses and coaching offers
  • Recruiters for roles outside my stack

Travels often; replies within 48 hours

Skills
Android performanceJetpack ComposeMVVMCoroutines
HiringHiring for a role
closes in 3 months

Hiring a senior backend engineer for the Android team - Berlin or remote

Role
Senior backend engineer
Level
Senior
Type
Full-time
Work mode
Remote
Compensation
$128k-$160k + equity
Team
Android, 14 people
Start
This quarter
Must have
Production experience with Android performance Production experience with MVVM Clear written communication
Process
Intro call, technical deep dive, team chat

Comp €65k-€120k. Four conversations, no take-home. Message me with one thing you shipped that you're proud of.

Berlin, Germany · remote OKcoroutinesmvvmjetpack compose
Open

Experience

  1. VP of Engineering
    Oct 2025 - Present
    Ripple Systems · 1 yr 1 mo · Full-time · Berlin, Germany
    • Cut cold-start time on low-end Android phones by 39%.
    • Shipped a rewrite that took build times from 38 minutes to under 4.
    • Moved 93% of Android traffic off a legacy monolith without a customer-facing incident.
  2. Engineering Manager
    Aug 2023 - Oct 2025
    Zalando · 2 yr 2 mo · Full-time · Berlin, Germany
    • Moved 65% of Android traffic off a legacy monolith without a customer-facing incident.
    • Brought on-call pages for Android down from 16 a week to 1.
  3. Senior Android Engineer
    Jun 2022 - Aug 2023
    Philips · 1 yr 2 mo · Full-time · Berlin, Germany
    • Cut p99 latency on the Android services from 687ms to 70ms.
    • Led the migration of 16 services to Coroutines.
  4. Engineering Manager
    Feb 2021 - Jun 2022
    Capgemini · 1 yr 4 mo · Full-time · Berlin, Germany
    • Reduced cloud spend on Android by 46% in two quarters.
    • Brought on-call pages for Android down from 29 a week to 4.
  5. Staff Android Engineer
    Nov 2019 - Feb 2021
    Adyen · 1 yr 3 mo · Full-time · Berlin, Germany
    • Shipped a rewrite that took build times from 27 minutes to under 3.

Projects

Write-up: mobile apps in practice
2025

A long-form guide to mobile apps for people starting out.

Side project: a recipe search engine
2025

Built with MVVM and Coroutines. 4908 people used it last year.

References

No references yet.

Education

  1. Sorbonne University
    Licence, Electronics and Communication
    2008 - 2011

Details

Compensation expectations
What they are targeting for their next role.
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Direct contact details
Direct email and a scheduling link.
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