Nubank is a fintech company focused on providing financial services through a mobile app, and they are seeking a Principal Engineer to lead the technical direction of their Mobile Platforms. This role involves shaping the architecture, developer experience, and overall performance of the Nubank app, impacting millions of customers across multiple markets.

Responsibilities:

Lead the technical direction of Nubank’s Mobile Platform
Own multi‑year, high‑visibility initiatives such as Mobile Destination Architecture, native code deprecation, app startup refactor, navigation performance, BDC evolution and App Excellence
Shape how the entire engineering org builds mobile products across App Foundations, App Enablement and App Release
Drive strategy, define technical roadmaps, sponsor other senior/principal engineers, and represent Mobile Platforms in cross‑company forums and executive discussions
Define canonical patterns, RFCs and reference implementations; create reusable tools/libraries; and ensure that internal customers can adopt the platform with low friction and high quality
Align PMs, EMs, Staff/Principal engineers and leadership on trade‑offs and make tough calls grounded in data, risk and long‑term sustainability
Invest heavily in technical leadership and mentorship, raising the bar for senior engineers across Mobile Platforms and product BUs, and building a strong culture around architecture reviews, design docs, and post‑incident learning
Tie together app metrics (startup, TTFD, crashes, jank), CI/CD, feature rollout (BDC + app releases) and on‑call practices into a coherent strategy

Principal Engineer, Mobile Platforms

Key skills

About this role

Responsibilities: