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About the Role
We are looking for an iOS UI Engineer for the development of our client application layer. This is an Individual Contributor (IC) role focused on crafting elegant, high-performance user experiences using modern Apple frameworks. You will drive the implementation of features from conception to deployment using SwiftUI.
This position requires a deep passion for design and UX, coupled with a keen understanding of iOS architecture and the complex interactions between the application layer and the underlying system services. You will act as a technical design partner to the UX team, ensuring that ambitious designs are translated into robust, scalable, and efficient code.
Key Responsibilities
- Modern UI Development: Architect and build new user-facing features primarily using SwiftUI.
- Architecture & Design: Actively collaborate with UX/Design teams, providing technical feasibility insights and contributing to the user experience and design documentation.
- Quality & Accessibility: Write comprehensive Unit, User Acceptance (UAT), and Snapshot Tests to ensure visual consistency and functional quality. Ensure all features meet high standards for Accessibility (VoiceOver, Dynamic Type) and Internationalisation (RTL).
Must-Have Expertise
- Experience: 14+ years of professional iOS software development experience with proven success building and supporting applications at massive, global scale.
- UI Prowess: Expert proficiency in SwiftUI and modern UI development patterns, with a demonstrated passion for the Apple design ecosystem.
- Architecture: Deep understanding of iOS architecture, data flow, component structure, and MVVM/Combine.
- Core Skills: Ability to write clean, testable, maintainable code, and a basic understanding of asynchronous and concurrent programming.
- Autonomy: Operates with a high degree of autonomy and ownership within a structured, engineering-driven environment.
- Collaboration: Strong ability to articulate complex technical issues to both technical and non-technical audiences, and proven experience working on distributed teams across time zones.
Nice-to-Have Skills
- Experience with Containerisation (Docker/Kubernetes) for local testing or staging environments.
- Familiarity with system monitoring tools like Splunk/Prometheus/Grafana.
- Experience with Shell Scripting for automation tasks.
At .Monks, we believe in fostering an environment where a diversity of perspectives can thrive. We proactively work to design hiring processes that promote equity and inclusion while mitigating bias. We celebrate diversity and are committed to building a team that reflects the communities we serve. We welcome and encourage qualified applicants, from all backgrounds, who are excited to contribute to our mission.
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About Monks
Monks is the global, digital-first, data-driven, unitary operating brand of S4 Capital plc. With a legacy of innovation and specialized expertise, Monks combines an extraordinary range of global Marketing and Technology Services to redefine how brands interact with the world. Through Monks.Flow, its flagship AI ecosystem for marketing orchestration, Monks transforms marketing into a growth engine, collapsing timelines and connecting brands to culture in real time. By deploying bespoke intelligent agents across disciplines and delivering culturally relevant, high-impact creative and digital solutions, Monks solves key critical business challenges across the entire brand enterprise to help brands sustain long-term impact.
Monks was named a Contender in The Forrester Wave™: Global Marketing Services, ranks among Cannes Lions' Top 10 Creative Companies (2022-25) and remains the only partner featured in AdExchanger’s Programmatic Power Players list every year (2020-24). Named Adweek’s first AI Agency of the Year (2023) and The One Show’s inaugural AI Pioneer Organization, Monks was also awarded Business Intelligence Group’s 2025 Excellence in Artificial Intelligence Award in both the Organizational and AI Product categories. As a trusted partner to cutting-edge innovators in tech, Monks earned titles such as Optimizely Experimentation Partner of the Year (2025), runner-up for the Adobe Firefly Partner Award (2024), and Workato’s AI Visionary Customer Impact Award (2024). Additionally, Monks achieved a record-breaking number of FWAs and continues to hold the most of any partner.
We are an equal-opportunity employer committed to building a respectful and empowering work environment for all people to freely express themselves amongst colleagues who embrace diversity in all respects. Including fresh voices and unique points of view in all aspects of our business not only creates an environment where we can all grow and thrive but also increases our potential to produce work that better represents—and resonates with—the world around us.
