Are you passionate about building scalable UI systems and mobile infrastructure that impact millions of users? We’re looking for aSenior iOS Engineerto join a high-performing team responsible for a cross-platform design system that powers some of the most visible features in consumer mobile apps today. This role is part of a team building the core mobile design infrastructure used across multiple apps within one of the world’s leading tech companies. You’ll be contributing to high-priority initiatives like GenAI integration and account services, while also shaping the future of mobile frameworks. What You’ll Do:Build and support reusable UI components that scale across a family of mobile apps. Own the native iOS implementation of design system elements — working in Swift/Objective-C with integrations via PHP/Hack. Collaborate with designers, PMs, and infrastructure teams to build visually stunning, high-performance components. Deliver high-quality code for new screens, dialogs, carousels, and animations. Support ongoing migrations and legacy infrastructure; participate in experimentation and rollout strategies. Optional on-call support rotation (once every 6 weeks – standard business hours). What We’re Looking For:Must-Have Skills: 7+ years of professional experience in iOS development. Strong knowledge of PHP or Hack and experience interfacing iOS with backend components. 7+ years’ experience with React. Nice-to-Have: Experience in mobile infra or UI component libraries. Prior experience at a large tech company or working on cross-app systems. Client DescriptionOur client is the largest social media company in the world. They have substantial B2B and B2C advertising and media platforms, as well as a nonprofit initiative. With the mission of bringing people together, they now boast over 2 billion users and are rapidly developing as they influence the world around us. #LI-ES5 Aquent is dedicated to improving inclusivity & is proudly an equal opportunities employer. We encourage applications from under-represented groups & are committed to providing support to applicants with disabilities. We aim to provide reasonable accommodation for any part of the employment process, to those with a medical condition, disability or neurodivergence.#J-18808-Ljbffr
Job Title
Senior iOS Engineer