Senior iOS (Swift) Engineer

About Zopa

Founded in 2005 as the pioneering peer-to-peer lending company, Zopa evolved into a full-service bank in 2020, dedicated to redefining banking with a customer-centric approach. Prioritizing people, Zopa promotes a culture where employees are empowered to achieve significant impact daily and has earned recognition as one of the UK’s most beloved workplaces.

Team Overview

As a mobile-first bank, Zopa considers its iOS app central to delivering high-quality customer experiences. Having recently transitioned to a fully native mobile platform, the focus is now on optimizing the iOS offering to be fast, dependable, accessible, and developer-friendly.

The successful candidate will be part of the Mobile Platform team, responsible for shared elements such as architecture, reusable modules, design systems, observability tools, developer support, and continuous integration/delivery processes. This team influences the overarching mobile engineering strategy and creates tools that simplify technical challenges for product teams.

Primary Responsibilities

• Collaborate closely with leadership—including the Engineering Manager, Principal Mobile Engineer, and Head of Mobile Engineering—to execute Zopa’s mobile strategic goals.
• Drive the iOS technical vision by setting standards and guiding architectural direction.
• Develop and refine shared components, APIs, architecture, and developer tools to enable confident and efficient delivery across teams.
• Proactively detect and mitigate technical risks utilizing profiling, observability, and data analysis to elevate performance, reliability, and developer productivity.
• Maintain hands-on engagement by authoring and delivering high-quality Swift and SwiftUI code for both platform infrastructure and customer-facing features.
• Mentor and elevate team members through code reviews, pair programming, technical discussions, and knowledge sharing.
• Engage cross-functionally with Product, Design, Backend, and Android teams to make balanced and informed engineering decisions.

Candidate Profile

• Proven skills in constructing and sustaining iOS customer-centric applications using Swift and SwiftUI.
• Comprehensive understanding of iOS development facets such as concurrency, optimization, memory management, testing, accessibility standards, and security practices.
• Proficient in architectural design and API development with an emphasis on simplicity, maintainability, and excellent developer experience.
• Self-driven with an aptitude for identifying issues, proposing practical solutions, and advocating improvements beyond immediate project scope.
• Effective collaborator who supports peers by mentoring, pairing, and sharing expertise.
• Open-minded and confident in constructively challenging ideas while receptive to change based on new evidence.
• Genuinely passionate about mobile technology and staying updated with iOS advancements.

Additional Preferred Qualifications

• Experience within fintech, banking, or other regulated sectors valuing reliability and customer trust.
• Demonstrated success developing shared libraries, platforms, or design systems that accelerate engineering teams.
• Strong working knowledge of UIKit and its integration with modern iOS development practices.
• Hands-on involvement enhancing mobile CI/CD workflows, release management, and developer tools.
• Competence in thoughtfully leveraging AI-assisted development tools to boost productivity and code quality.

Work & Culture

Zopa promotes a hybrid working model requiring attendance at the London office 2-3 days weekly while supporting remote work up to 120 days per year, provided legal work eligibility. The company emphasizes a discrimination-free environment celebrating diversity across its workforce and encourages applicants to request reasonable accommodations.

Hiring & AI Use Policy

Zopa integrates AI into everyday work and encourages transparency about its use in hiring. Behavioral interviews do not permit AI assistance to foster authentic interaction. Technical interview policies on AI vary by role and stage, with clear communication from Talent Partners. When AI usage is allowed, candidates are evaluated on both output and process, including tool selection and reasoning.