Payments Team

Developing a simple iOS video editor app, that enables creators & musicians to visualize their music and engage fans.* The app counts more than 100k total downloads and ~1.5k monthly active users.* Integrated Spotify & SoundCloud APIs as music source modules.* Open-sourced Spotify Picker for iOS on GitHub.

Full-Stack Engineer @ Freemium→ Designing and developing a CMS tool for internal operators to create and manage user-facing marketing content→ Developing and maintaining both frontend and backend features while also managing DevOps tasks such as configuring various docker workflows→ Engaging with stakeholders on an ongoing basis to address their needs and concerns→ Led a successful redesign project aimed at optimizing the usage of the CMS tool by operatorsStack: Java, NextJS, Docker

As one of two developers, contributed to the creation of the primary app facilitating the buying and selling of stocks, as well as investing in ETFs and funds for over 1M users.→ Introduced online registration in iOS migrating from an offline workflow and leading to +10% a year increase in new users→ Revamped the UI leading to better App Store metrics and reviews (+194% impressions, +107% product page views, +51% App Units (first-time downloads))→ Implemented and maintained the integration between native iOS features (e.g. Touch ID/Face ID) and the embedded web apps (e.g. trading web app, online user registration)Stack: Swift, ReactJS

Designed and implemented an onboarding platform to replace the previous offline registration process for a trading platform.→ Developed a new sign-up flow that increased completion rates by more than 20%→ Implemented software changes required by financial regulators in Germany, Austria, and the Netherlands→ Implemented a reverse proxy server (API gateway) providing a unified communication layer for the clients→ Led 1 junior developer, mentored 2 junior devsStack: Golang, ReactJS/Redux, Docker, Gitlab CI

I designed and implemented a tracing and monitoring platform for distributed systems used by about half of the company’s 100+ engineers.→ Conducted research and gathered requirements from various engineering teams→ Implemented an instrumentation library (an SDK) to generate and collect data from a wide variety of distributed systems→ Designed and implemented a monitoring web app displaying various metrics and generating automatic reportsStack: Golang, Java, ReactJS, InfluxDB, OpenTracing