Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Hi, I’m Andrii Horoshko, a senior mobile engineer based in Vienna with 8+ years of experience building native Android, iOS, Flutter, and React Native apps that ship to production. I enjoy turning ideas into robust mobile experiences through thoughtful architecture, reliable CI/CD, and close collaboration with product and design teams. I’ve led a five-person mobile team, co-founded CleverApp Tech, and delivered multiple MVPs quickly across Flutter, React Native, and FastAPI. I thrive in cross-functional environments and love mentoring engineers to write clean code, improve stability, and accelerate time-to-market.…Hi, I’m Andrii Horoshko, a senior mobile engineer based in Vienna with 8+ years of experience building native Android, iOS, Flutter, and React Native apps that ship to production. I enjoy turning ideas into robust mobile experiences through thoughtful architecture, reliable CI/CD, and close collaboration with product and design teams. I’ve led a five-person mobile team, co-founded CleverApp Tech, and delivered multiple MVPs quickly across Flutter, React Native, and FastAPI. I thrive in cross-functional environments and love mentoring engineers to write clean code, improve stability, and accelerate time-to-market.

Andrii Horoshko

Web Developer, Full Stack Developer, App Designer, +5





Hi, I’m Andrii Horoshko, a senior mobile engineer based in Vienna with 8+ years of experience building native Android, iOS, Flutter, and React Native apps that ship to production. I enjoy turning ideas into robust mobile experiences through thoughtful architecture, reliable CI/CD, and close collaboration with product and design teams. I’ve led a five-person mobile team, co-founded CleverApp Tech, and delivered multiple MVPs quickly across Flutter, React Native, and FastAPI. I thrive in cross-functional environments and love mentoring engineers to write clean code, improve stability, and accelerate time-to-market.…Hi, I’m Andrii Horoshko, a senior mobile engineer based in Vienna with 8+ years of experience building native Android, iOS, Flutter, and React Native apps that ship to production. I enjoy turning ideas into robust mobile experiences through thoughtful architecture, reliable CI/CD, and close collaboration with product and design teams. I’ve led a five-person mobile team, co-founded CleverApp Tech, and delivered multiple MVPs quickly across Flutter, React Native, and FastAPI. I thrive in cross-functional environments and love mentoring engineers to write clean code, improve stability, and accelerate time-to-market.

Available to hire

Hi, I’m Andrii Horoshko, a senior mobile engineer based in Vienna with 8+ years of experience building native Android, iOS, Flutter, and React Native apps that ship to production. I enjoy turning ideas into robust mobile experiences through thoughtful architecture, reliable CI/CD, and close collaboration with product and design teams.

I’ve led a five-person mobile team, co-founded CleverApp Tech, and delivered multiple MVPs quickly across Flutter, React Native, and FastAPI. I thrive in cross-functional environments and love mentoring engineers to write clean code, improve stability, and accelerate time-to-market.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

German

Advanced

English

Advanced

Ukrainian

Fluent

Russian

Fluent

Work Experience

Senior Mobile Developer at NOUS Wissensmanagement FlexCo

November 1, 2024 - Present

Delivered a Flutter + Unity museum app from greenfield to store: BLE/beacon navigation, offline-first media, ARCore, Riverpod, Clean Architecture. Owned CI/CD (Azure DevOps) for Android & iOS; cut release cycle by 30% through pipeline automation and lint/test gates. Maintained native Android codebases (Kotlin/Java); reduced top crash clusters by ~45% via Crashlytics triage before each store submission.

Co-Founder & CTO at CleverApp Tech

February 1, 2026 - Present

Founded an EU-focused full-stack mobile studio; delivered 3 MVPs in 60 days across Flutter, React Native, and FastAPI — avg. time-to-MVP 3 weeks. Services span mobile (iOS/Android/Flutter/RN), web platforms, backend/APIs, AI integration, ETL pipelines, and BI dashboards.

Mobile Development Lead at Jobnet.AG

September 1, 2022 - November 1, 2024

Led 5-person mobile team: roadmap, sprint planning, architecture (MVVM/Clean), biweekly releases across 2 product lines. Built Jobnet Proctor from scratch (CameraX, ML Kit); crash-free rate consistently above 99.2% — sole owner of stability end-to-end. Rolled out GitLab CI/CD; reduced manual QA overhead by ~35% and cut ANR-heavy releases from ~3/quarter to 0.

Mobile Developer at Workconsult GmbH

May 1, 2018 - September 1, 2022

Shipped and maintained 5 Android + 3 iOS apps on Google Play and App Store; owned deployment and release operations end-to-end. Expanded automated test coverage (JUnit, Espresso); reduced production regressions by ~40% over 2 years.