Senior Android Engineer CI/CD - (Freelancer)

voize

3d•Hybrid

About The Position

As a Freelance Senior Android Engineer, you will take ownership of building and evolving our Android application, creating features that have a real impact on the daily lives of healthcare professionals. This role involves owning the health of our mobile CI/CD pipeline end to end, including approximately 70 Kotlin Multiplatform jobs, from lint to end-to-end tests to store release. You will be responsible for triaging and debugging failures, defining healthy CI with SLOs, optimizing pipeline performance, and making test flakiness visible and owned. The goal is to improve the P95 pipeline time from approximately 90 minutes to a more satisfactory level and to establish clear ownership for failing tests.

Requirements

Several years building Android apps with Kotlin and Compose
Shipped Android applications to real users
Deep Gradle knowledge: multi-module builds, build caching, task/configuration avoidance
Experience owning a CI/CD setup (GitLab CI ideally): runners, caches, artifacts, change-based job gating
Comfortable with emulators, macOS/iOS build agents, Appium/E2E flakiness, and memory-hungry Kotlin compile jobs
Fluent English (C1)

Nice To Haves

Kotlin Multiplatform and/or iOS exposure
German language skills

Responsibilities

Own the health of our mobile CI/CD pipeline end to end: ~70 Kotlin Multiplatform jobs, from lint to end-to-end tests to store release
Triage and debug failures in the pipeline and the app itself
Define what healthy CI means with actual SLOs
Decide which jobs to keep, combine, or gate
Reduce P95 pipeline time from ~90 minutes
Make test flakiness visible and owned through dashboards, quarantining, and clear ownership per failing test
Document efforts, successes, and existing solutions to build CI muscle into the dev culture