I'm a software developer with over 20 years of experience, having worked in startups and large corporations. Currently my focus is on iOS native and I prefer to work on a single product taking it from a few sketches to a released app. I’m a creative person who loves to find solutions to tricky problems and be involved in product development, collaborating with cross-functional teams to deliver delightful user experiences.

Walter Fettich

I'm a software developer with over 20 years of experience, having worked in startups and large corporations. Currently my focus is on iOS native and I prefer to work on a single product taking it from a few sketches to a released app. I’m a creative person who loves to find solutions to tricky problems and be involved in product development, collaborating with cross-functional teams to deliver delightful user experiences.

Available to hire

I’m a software developer with over 20 years of experience, having worked in startups and large corporations. Currently my focus is on iOS native and I prefer to work on a single product taking it from a few sketches to a released app.

I’m a creative person who loves to find solutions to tricky problems and be involved in product development, collaborating with cross-functional teams to deliver delightful user experiences.

See more

Experience Level

Expert
Expert
Expert
Expert
Intermediate

Language

English
Fluent
German
Advanced
Romanian, Moldavian, Moldovan
Fluent

Work Experience

Senior iOS Developer at Crunch Apps
August 1, 2023 - Present
Developed InkHunter app (AR + AI for tattoo previews). Reused existing Objective-C code for AR overlay. Built new SwiftUI architecture based on MVVM-C. Delivered version 1.0 and then 2.0 with redesigned UI.
Senior iOS Developer at Vision Bank
March 1, 2023 - October 13, 2025
Collaborated inside a team of scrum master, QA, Android, iOS, UX to build a pixel perfect and bug-free UI. Wrote automated tests to achieve > 90% test coverage. Identified and resolved critical bugs, including a security design flaw.
Unity Developer at Fiesta Friends
November 1, 2022 - Present
Implemented core gameplay, UI, and release fixes for iOS/Android.
Senior iOS Developer at Onfido
April 1, 2022 - October 13, 2025
Worked in a team to implement features and respect the overall architecture of the SDK. Added tests to ensure reliability for future changes. Refactored the codebase by removing forced unwrappings, unused code, and improving readability.
Senior iOS Developer at Zitec / Freshful
August 1, 2021 - October 13, 2025
Worked in a team to rapidly build the app based on Combine and MVVM-C architecture. Used code reviews to respect architecture, code standards and client requirements.
iOS Developer at Digital Pomelo / Wikoti
April 1, 2020 - October 13, 2025
Quickly prototyped features for user testing. Defined new features for the app alongside the CEO and dev team. Improved app features and performance based on user feedback; released the wikoti app.
Mobile Developer at Busymachines
May 1, 2018 - October 13, 2025
Quickly adapted to new codebases and technologies. Built and delivered 4 apps using React Native, Objective-C, Java.
iOS Developer at Style Jukebox
November 1, 2017 - October 13, 2025
Defined and developed features for hi-res music streaming. Implemented offline caching, hi-res playback and optimized loading for large collections. Collaborated with CEO and end-users to refine features.
iOS Developer at iRewind
October 1, 2014 - October 13, 2025
Rapidly built experimental features using Bluetooth, AVFoundation, ffmpeg to demo and test ideas. On-site debugging of video recording issues. Won 1st prize at the International Exhibition of Inventions of Geneva 2014.

Education

B. Sc. Applied Informatics at Polytechnical University Timişoara, Romania
October 1, 2000 - May 1, 2006

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Computers & Electronics, Professional Services, Media & Entertainment, Gaming, Financial Services
    Inkhunter
    An app for generating tattoos using AI and then previewing them using AR.

Hire a App Developer

We have the best app developer experts on Twine. Hire a app developer today.