Sr Staff Software Engineer - iOS

Makes technical decisions affecting multiple teams, crossing organizational boundaries Establishes conventions & processes to be followed by other employees Actions determine the utilization of company resources (people, money, assets) and affect the effectiveness of the company Handles multiple, multi-team initiatives simultaneously, using judgement to prioritize among more issues than can be handled individually. Understands evolving industry capabilities & practices and can judiciously apply up--to-date information for optimal results Competent at communicating technical issues with non-technical audiences Spreads their behavior, principles, and knowledge as a means of improving technical results of other employees (via many means - modeling behavior, 1:1s, working sessions, quality documentation) Partners with product management, to ideate solutions to business problems & goals Own the end‑to‑end design, performance, and reliability of Venmo Commerce on iOS. Write and review production Swift. Lead large‑scale refactorsthink UIKit ➜ SwiftUI, RxSwift ➜ Combineas we modernize our stack. Partner with server engineers to craft efficient GraphQL and REST contracts that keep the app fast and data‑savvy. Prototype new commerce ideas and AI‑powered features, run A/B tests, and turn successful spikes into polished experiences. Establish mobile engineering standards: testing pyramids, CI/CD, accessibility, observability, and on‑call best practices. Mentor senior and staff engineers through pairing, design reviews, and candid feedback. Tackle ambiguity head‑on, framing trade‑offs clearly and charting a path forward when the product brief is still a sketch. Minimum of 12 years of relevant work experience and a Bachelor's degree or equivalent experience. 10+ years building and shipping consumer iOS apps, with at least 3 years at staff‑plus scope. Expert‑level Swift (and comfort reading Objective‑C) plus deep knowledge of UIKit, SwiftUI, CoreAnimation, and networking. Proven history of raising the technical barintroducing better architecture patterns, automated quality gates, and healthy code‑review culture. A portfolio of shipping complex features at scale: offline‑first flows, concurrency, real‑time updates, or high‑fidelity animations. Curiosity and hands‑on experience with AI/ML on deviceCoreML, on‑device inference, or integrating LLM‑powered APIs for personalization or developer productivity. Ability to explain complex trade‑offs in plain language and align cross‑functional partners around a technical vision. Comfort influencing without authorityrallying multiple teams to deliver cohesive, delightful user experiences. Payments, risk, or fintech domain exposure. Experience optimizing App Store release pipelines and feature‑flag‑driven rollouts. Contributions to open‑source iOS libraries or conference speaking. Deep understanding of mobile accessibility and internationalization.