Lead iOS
Engineer.

Founding and Lead iOS Engineer at Speak. Scaling mobile products from zero to global scale. Blending product intuition with engineering rigor to deliver high-quality, thoughtful user experiences.

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Experience

Senior iOS Engineer

USBC

Jan 2026 - Present Reno, NV / Ljubljana, Slovenia (Remote)

USBC is a publicly traded technology company developing blockchain-based financial services, led by Chairman and CEO Greg Kidd.

  • Feature Delivery & Migration: Shipped end-to-end chat features (replies, editing, status indicators) and migrated the core messaging module to a new project, refactoring the implementation to meet modern architectural standards.
  • Infrastructure & Observability: Designed and built a unified logging system from scratch, replacing multiple legacy approaches and migrating the entire codebase to improve production debugging and monitoring.
  • State Management & Architecture: Delivered a multi-identity switching system.
  • Codebase Health & Tooling: Reduced build times via multiple dead-code cleanup passes and built internal developer utilities to streamline the development, debugging, and testing of new features.

Lead iOS Engineer

Speakeasy Labs (Speak)

Aug 2017 - Sep 2025 San Francisco, CA / Ljubljana, Slovenia (Remote)

Speak is a fast-growing AI-powered language learning platform backed by the OpenAI Startup Fund, Accel, Founders Fund, and Khosla Ventures.

  • Founding iOS engineer, responsible for building the entire iOS app from scratch.
  • Built the iOS application from prototype to globally scaled production system used in multiple markets.
  • Owned architecture, feature implementation, app stability, and long-term codebase direction.
  • Implemented the vast majority of iOS features during the company’s first five years.
  • Built complex UIKit-driven interfaces, animations, and UIKit/SwiftUI hybrid components.
  • Set up core infrastructure: Firebase (RTDB, Firestore, Storage), analytics pipelines, A/B testing (Split.io), Crashlytics, Fastlane automation, Bitrise CI/CD, and TestFlight distribution.
  • Collaborated daily with the CTO and CEO in the early years for product planning and technical strategy.
  • As the company expanded across time zones, shifted focus primarily to feature development, engineering execution, and platform improvements.
  • Led hiring & interviewing for iOS, Android, backend, and QA roles; onboarded new engineers.
  • Coordinated API planning with backend and Android teams, ensuring alignment across platforms.
  • Delivered consistently stable, polished releases with a strong emphasis on visual detail, UX consistency, and low bug rates.

Senior iOS Engineer

Kamino

Jan 2016 - May 2017 Ljubljana, Slovenia
  • Development of iOS applications.
  • Project lead iOS engineer (eAsistent, Fancore).

Mid iOS Engineer

D·Labs

Oct 2014 - Dec 2015 Ljubljana, Slovenia
  • Project lead iOS engineer (Rock Pamper Scissors).
  • Development of iOS applications (Teepee, Lock and Charge, Outcast, Go Car Share, Rock it, Minicabster).
  • Development of watchOS applications (Lock and Charge).

iOS Intern

D·Labs

Apr 2014 - Jun 2014 Ljubljana, Slovenia
  • Development of iOS applications (DTrack, Snore Catcher, Minicabster, Minicabster Driver).

Summer Intern

Layer

Jul 2013 - Sep 2013 San Francisco, CA
  • Layer iOS SDK documentation.
  • Developed iOS UI components.

The Backstage

Music is my constant companion, setting the tone for every part of my day and serving as my primary creative outlet. My passion for guitar goes beyond just playing - I am also deeply involved in the craft of maintaining and working on the instruments themselves.

I love the entire process of writing and recording music, a creative journey I currently explore through a black metal project with a group of friends.

Music Production Guitar Maintenance Music Writing Home Recording

Other Freelance Projects

Speech Blubs, 2017

Speech therapy app for children, iOS engineer (App Store).

Instavest, 2017

Investment app, iOS engineer (App Store).

Yomento, 2016/2017

Leadership coaching app, iOS engineer.

WorkClean, 2016

Productivity app, iOS engineer (App Store).

The Tech Stack

Languages

Swift
Objective-C
Python
Bash

Frameworks

UIKit
SwiftUI
Swift Concurrency
GCD

Architecture

Clean Architecture
Modularization
MVVM
MVC

Infrastructure

Firebase (RTDB/Firestore)
REST APIs
Bitrise / Fastlane
Xcode / TestFlight

Analytics & Observability

Amplitude / Mixpanel
Segment / Customer.io
Split.io (A/B Testing)
Crashlytics / Sentry

Design & SDKs

Figma / Sketch
Lottie
LiveKit (WebRTC)
RevenueCat (IAP)
Intercom

Education

BSc, Computer Science

University of Ljubljana

Oct 2011 - Feb 2015 Slovenia
  • Bachelor’s Thesis: Development of an iOS controlled mobile robot.
  • Designed and built the robot’s hardware and software from scratch, including sensors, servo motors, camera module, and illumination system.
  • Developed a native iOS/iPadOS app enabling remote driving, camera angle control, and real-time video streaming.
  • Implemented Python-based control software on a Raspberry Pi.

Achievements & Conferences

TechCrunch Disrupt SF Winner

San Francisco, CA

2013 Winner

Dean's Award

Exemplary academic requirements

University of Ljubljana

WWDC

Apple Worldwide Developers Conference

June 2017 • San Jose, CA

UIKonf

International iOS Conference

May 2015 • Berlin, Germany