WhatsApp - Software Engineer (Technical Leadership) - iOS

We are building a new team to take WhatsApp further in that direction. The newly established WhatsApp Services team is focused on making WhatsApp more useful for more of what people already use it for, and on building what comes next.

The WhatsApp Services team is treated as a zero-to-one effort so we can move fast, take risks and build as we go - staffed and prioritized, like every other WhatsApp team, from day one. Payments on WhatsApp aren't a bet on paper: live and growing in Brazil, with the existing WhatsApp payments engineering team moving across as the foundation.

As an iOS engineer at WhatsApp you will use your start-up mindset and your full range of engineering skills to produce elegantly simple products. You'll be expected to push the boundaries of what's possible in a mobile app, while sharing in our commitment to quality and attention to detail. You will set technical direction across multiple teams, own the architecture for a major area of the product, and shape what WhatsApp Services becomes in Brazil.

Responsibilities

Build and ship client features for WhatsApp on iOS, with a focus on performance, reliability and responsiveness. Own iOS client architecture for services surfaces - payments, commerce and the everyday money-centric flows people already come to WhatsApp for. Work across Swift and Objective-C with the iOS SDK, and partner with server and platform teams on API design. Identify and solve the hardest technical problems across the pillar, including finding where new technology can address previously intractable problems. Set technical direction across multiple teams and own the architecture for a major area of the product. Lead initiatives of org-wide scope, resolving ambiguity in both product definition and technical approach. Drive engineering standards, quality and craft across the pillar, and make teams and systems work better to increase their impact. Mentor senior engineers, influence cross-functional partners in product, design and data science, and act as a credible co-owner of product outcomes. Collaborate with cross-functional teams in product management, design, data science and operations to build innovative application experiences. Partner with payments, legal, compliance and local operations partners to ship services that meet the reliability and regulatory bar expected in Brazil.

Qualifications

Bachelor's degree in Computer Science, Computer Engineering, relevant technical field, or equivalent practical experience 12+ years of programming experience in a relevant language OR 8+ years experience with a PhD Experience communicating and working across functions to drive solutions Experience utilizing data and analysis to explain technical problems and provide detailed feedback and solutions Experience driving large cross-functional/industry-wide engineering efforts Proven track record of planning multi-year roadmap in which short-term projects ladder to the long-term mission Experience mentoring/influencing executive stakeholders across organizations Experience building complex applications for the iPhone or iPad using Objective-C/C++/Swift with the iOS SDK and other frameworks Experience with multithreading programming and mobile memory management Experience shipping at a high release cadence with strong attention to craft and detail Experience building for the Brazilian market, including familiarity with Pix and Brazil's digital payments ecosystem In-market experience in Brazil, or experience at a Brazil-based consumer technology or fintech company operating at scale Experience designing and operating payment systems at scale, including the reliability, correctness and regulatory requirements they carry Background in monetization, payments, commerce or AI/ML products Experience establishing the technical foundations of a 0-to-1 organization or a new product area Experience setting technical strategy for global, multi-market products, particularly in emerging markets Experience as a technical leader across distributed teams in multiple sites Familiarity with messaging platforms or mobile-first consumer products, including super-app or founder-led product experience in market Demonstrated ability to integrate AI tools to optimize/redesign workflows and drive measurable impact (e.g., efficiency gains, quality improvements) Experience adhering to and implementing responsible, ethical AI practices (e.g., risk assessment, bias mitigation, quality and accuracy reviews) Demonstrated ongoing AI skill development (e.g., prompt/context engineering, agent orchestration) and staying current with emerging AI technologies