I'M JULIAN
About me
Since I started my career in 2013, I had the opportunity to work with a wide range of clients and teams that diversified technologies, methodologies, and development patterns in my portfolio. I worked both inside big companies and seeking clients on my own, rewriting code, or building applications from scratch.
Nowadays I work as a freelancer or contractor. I get clients on Upwork where I achieved a 100% client satisfaction rate or by referrals from previous happy clients.
I consider myself proactive, creative, and a fast learning person. I have the ambition to grow professionally, applying the engineering knowledge gotten from the university. I am interested in mobile development, the use of the latest technologies, and the support for different devices.
My Skills
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Pebblebee
Led iOS development for Pebblebee's Bluetooth tracker app, driving the App Store rating from 2.4 to 4.6 through team leadership and a full technical modernization.
Symplicity
Developed a globally used career services iOS app with a 4.8 rating, featuring a scaffold system that adapts UI and features per university client.
Flo by Moen
Senior iOS Engineer on a smart water monitoring app, enabling remote device control, real-time consumption data, and leak alerts via MQTT.
What clients say
"I had the privilege to work with Julian. He is a pro developer, with great skills and fast execution. Julian is a team player, adjusts quickly and more important a great guy!"
Danny Tuttnauer
Co-Founder
"We worked with Julian to develop a B2B iPhone and Apple Watch application. We were looking for a developer but also someone to guide us. Julian did both perfectly. He is a great developer and provided us great suggestions."
Kevin Pfefer
Product Manager
"Worked with Julián, who was a contractor on an iPhone & Apple Watch app. Not only is he a great software engineer, but he is also a dependable and communicative contractor. He provides consistent updates and demos throughout the project to show progress."
Lesley Mbogo
X-Amazon Head of Product
Posts
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Running many coding agents in parallel with Conductor
My notes after using Conductor to run multiple Claude and Codex agents at the same time, with GitHub and Linear integrations, inline reviews and multi-workspaces.
Migrating UIKit into SwiftUI
A practical guide to migrating UIKit-based iOS projects to SwiftUI, covering benefits, step-by-step migration process, and best practices.
Integrating Siri on your iOS app
A step-by-step guide to integrating Siri into your iOS app using NSUserActivity, intent donations, and Siri Shortcuts.