Senior iOS Developer

About this role

Waracle are looking for a Senior Developer for an exciting new role joining our world-class digital technology consultancy and home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation. We work with ambitious clients to help them solve their biggest business and customer challenges. We help our clients to innovate and create intelligent digital products and services. We thrive on complex challenges and deliver business-critical IT transformation projects, moving seamlessly from strategy, design and delivery to operations. This is a Hybrid role, offering the flexibility to balance your professional and personal life, with 2 days a week spent connecting with colleagues in our London office or on client site The Role We are looking for a self- motivated Senior Developer, proficient in iOS mobile development. In this position, you will drive the end-to-end craft of building, developing, and deploying high-performance iOS components and services. Whilst iOS will be your core area of expertise , we’re looking for someone with a curiosity and willingness to work across the wider mobile ecosystem. Experience with, or an openness to working with, frameworks such as React Native and Flutter would be highly valued. You don’t need to be an expert in every framework - we’re interested in developers who have strong engineering fundamentals, can adapt to different technologies and enjoy learning new approaches to solving mobile challenges! Key aspects of the role include: Technical Excellence & Delivery: Designing and delivering end-to-end features and small subsystems; optimising app performance, accessibility, and responsiveness; and being accountable for successful delivery of features. Communication & Stakeholder Management: Explaining technical trade-offs in plain language; and presenting demos confidently to clients and stakeholders to shape tactical direction. Leadership & Team Collaboration: Leading delivery of specific features or workstreams; and mentoring junior colleagues in both craft and process. Culture & Community of Practice: Regularly mentoring others across the practice; and representing Waracle in interviews and recruitment panels. Participating in ad-hoc duties from time to time as required by management. Research shows that underrepresented groups tend to only apply for roles that they believe they meet 100% of the criteria for. At Waracle, we want to buck that trend! We hire for passion, potential and mindset as much as credentials. If you think you'd be incredible in the role, then apply - even if you don't think you tick every box. What you'll bring Essential Skills & Experience: Core Language & Framework Expertise: Strong programming expertise in Swift, with hands-on experience across Xcode, Git/GitHub, XCTest and XCUITest, and a proven track record of shipping high-quality, production-scale iOS applications. Architecture & Scalability: Deep understanding of modular app architecture and proven experience implementing scalable patterns such as MVVM. SDK Development: Experience building, maintaining and integrating clean, scalable and well-documented SDKs designed for seamless adoption across engineering teams. Swift Concurrency & Performance: Solid grasp of multi-threading and concurrency models—including async/await, GCD, and Operations—to engineer performant, thread-safe solutions. Cross-Functional Collaboration: Excellent communication skills with a focus on driving engineering reusability, inner-sourcing, and minimising technical waste across distributed teams. Quality & Engineering Practices: Active advocate for software excellence, using practices like Pair Programming, Test-Driven Development (TDD), thorough Code Reviews, CI, and robust Automated Testing. Cross-Platform Knowledge: Direct experience or familiar exposure with cross-platform mobile frameworks such as Flutter or React Native. Desirable Skills & Experience: Mobile Security: Understanding of core mo

Skills and categories