Whatsapp - Software Engineer - Ios

Meta; São Paulo; On-site; BRL 350,000 - 550,000; Full time

Job summary

Meta's WhatsApp Services in Brazil is seeking an experienced iOS engineer to lead the end-to-end development of high-performance iOS features for payments and commerce. You will own core iOS architecture, collaborate with server and platform teams, and guide initiatives across functions while upholding quality and scalability.

The role emphasizes building 0-to-1 products, operating in a fast-paced environment, and shaping experiences for billions of users in emerging markets.

Qualifications

• Bachelor’s degree in Computer Science, Computer Engineering, or related field, or equivalent practical experience.
• 8+ years of programming in a relevant language, or 4+ years with a PhD.
• Experience driving change and leading complex technical projects.
• Experience building iPhone/iPad apps with iOS SDK using Swift/Obj-C/C++.
• Experience with multithreading and mobile memory management.
• Experience shipping at high release cadence with attention to detail.
• Experience building for Brazilian market, familiar with Pix and Brazil payments ecosystem.
• Experience with global, multi-market products in emerging markets.

Responsibilities

• Build and ship iOS client features focusing on performance and reliability.
• Own iOS architecture for services surfaces (payments, commerce, money flows).
• Collaborate with server/platform teams on API design.
• Set direction for a team and drive initiatives across functions.
• Architect scalable systems and manage technical debt reduction.
• Provide mentorship and onboard new team members.
• Partner with product, design, data science, and ops teams to create new experiences.
• Work with payments, legal, compliance and local ops to meet regulatory standards in Brazil.

Skills

iOS development

Swift

Objective-C

Multithreading

Performance optimization

Data-driven problem solving

Leadership

Cross-functional collaboration

AI/ML awareness

Education

Bachelor's degree in Computer Science/Engineering or equivalent

PhD (optional)

Tools

iOS SDK

Swift

Objective-C

C++

Job description

About

More than 3 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere. In Brazil, it is also where a great deal of everyday life gets done — people message businesses, coordinate their families, and increasingly send money as easily as they send a message.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 our commitment to quality and attention to detail. You will set direction for a team's technical area, lead major initiatives end to end, and be one of the people the pillar relies on to make the right engineering trade-offs under real ambiguity.

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.
• Set direction and goals for a team, lead major initiatives and drive them to completion across functions.
• Architect efficient and scalable systems that drive complex applications, and make the engineering trade-offs a 0-to-1 effort demands.
• Identify and resolve performance and scalability issues, and drive large efforts to reduce technical debt.
• Establish ownership of significant components, features or systems with expert end-to-end understanding.
• Provide technical guidance and mentorship to peers, help onboard new team members and raise the engineering bar in the team.
• 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.

Minimum Qualifications

• Bachelor's degree in Computer Science, Computer Engineering, relevant technical field, or equivalent practical experience
• 8+ years of programming experience in a relevant language, or 4+ years of experience with a PhD
• Demonstrated experience driving change within an organization and leading complex technical projects
• Experience utilizing data and analysis to explain technical problems and provide detailed feedback and solutions 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 building payment systems at scale, including the reliability, correctness and regulatory requirements they carry
• Background in monetization, payments, commerce or AI/ML products
• Experience building 0-to-1 products or standing up new product areas
• Experience with global, multi-market products, particularly in emerging markets
• Experience working with teams distributed across multiple sites
• Familiarity with messaging platforms or mobile-first consumer products
• 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