{"id":190335,"url":"https://alion.io/job/barclays-senior-frontend-engineer-ios","title":"Senior Native iOS Engineer","company":{"id":12541,"name":"Barclays","domain":"home.barclays","url":"https://alion.io/company/barclays-uk","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":94,"open_postings":205,"ghost_share":0.015,"stale_share":0.341,"repost_share":0.127,"time_to_fill_p50_days":17,"computed_at":"2026-10-28T05:59:10Z"}},"role":"Mobile","role_family":"Mobile","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Northampton, United Kingdom","Knutsford, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":71000,"max_usd":154000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":10},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"CocoaPods","optional":false},{"name":"Combine","optional":false},{"name":"MVVM","optional":false},{"name":"Swift","optional":false},{"name":"Swift Concurrency","optional":false},{"name":"SwiftUI","optional":false},{"name":"UIKit","optional":false}],"status":"live","first_seen_at":"2026-09-02T12:47:38Z","employer_posted_date":"2026-10-23","last_verified_at":"2026-10-28T14:34:47Z","board_verified":true,"closed_at":null,"days_open":56,"trust":{"level":"ok","repost_count":1,"flags":[],"days_open":55},"description":"Job Description\nPurpose of the role\nTo design, develop and improve software, utilising various engineering methodologies, that provides business, platform, and technology capabilities for our customers and colleagues.\nAccountabilities\nDevelopment and delivery of high-quality software solutions by using industry aligned programming languages, frameworks, and tools. Ensuring that code is scalable, maintainable, and optimized for performance.\nCross-functional collaboration with product managers, designers, and other engineers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives.\nCollaboration with peers, participate in code reviews, and promote a culture of code quality and knowledge sharing.\nStay informed of industry technology trends and innovations and actively contribute to the organization’s technology communities to foster a culture of technical excellence and growth.\nAdherence to secure coding practices to mitigate vulnerabilities, protect sensitive data, and ensure secure software solutions.\nImplementation of effective unit testing practices to ensure proper code design, readability, and reliability.\nAssistant Vice President Expectations\nTo advise and influence decision making, contribute to policy development and take responsibility for operational effectiveness. Collaborate closely with other functions/ business divisions.\nLead a team performing complex tasks, using well developed professional knowledge and skills to deliver on work that impacts the whole business function. Set objectives and coach employees in pursuit of those objectives, appraisal of performance relative to objectives and determination of reward outcomes\nIf the position has leadership responsibilities, People Leaders are expected to demonstrate a clear set of leadership behaviours to create an environment for colleagues to thrive and deliver to a consistently excellent standard. The four LEAD behaviours are: L - Listen and be authentic, E - Energise and inspire, A - Align across the enterprise, D - Develop others.\nOR for an individual contributor, they will lead collaborative assignments and guide team members through structured assignments, identify the need for the inclusion of other areas of specialisation to complete assignments. They will identify new directions for assignments and/ or projects, identifying a combination of cross functional methodologies or practices to meet required outcomes.\nConsult on complex issues; providing advice to People Leaders to support the resolution of escalated issues.\nIdentify ways to mitigate risk and developing new policies/procedures in support of the control and governance agenda.\nTake ownership for managing risk and strengthening controls in relation to the work done.\nPerform work that is closely related to that of other areas, which requires understanding of how areas coordinate and contribute to the achievement of the objectives of the organisation sub-function.\nCollaborate with other areas of work, for business aligned support areas to keep up to speed with business activity and the business strategy.\nEngage in complex analysis of data from multiple sources of information, internal and external sources such as procedures and practises (in other areas, teams, companies, etc).to solve problems creatively and effectively.\nCommunicate complex information. 'Complex' information could include sensitive information or information that is difficult to communicate because of its content or its audience.\nInfluence or convince stakeholders to achieve outcomes.\nAll colleagues will be expected to demonstrate the Barclays Values of Respect, Integrity, Service, Excellence and Stewardship - our moral compass, helping us do what we believe is right. They will also be expected to demonstrate the Barclays Mindset - to Empower, Challenge and Drive - the operating manual for how we behave.\nJoin us as a Senior Native iOS Engineer, where you will help shape and enhance the mobile experiences used by millions of customers across Barclays. Working within our mobile engineering team, you will contribute to the design, development and evolution of secure, scalable and accessible iOS applications that support key customer journeys and business priorities.\nThis role offers the opportunity to influence technical direction, contribute to engineering standards and help deliver high-quality mobile solutions within a regulated environment.\nYou will work closely with engineers, designers, product partners and stakeholders to deliver customer-focused outcomes while supporting Barclays' digital transformation goals. This is an opportunity to work on core mobile platforms and services, contribute to platform-wide improvements and help build mobile experiences that are secure, reliable and accessible for all customers.\nTo be successful as a Senior Native iOS Engineer, you must have the following essential skills:\nExtensive experience developing native iOS applications using Swift across SwiftUI and UIKit, with knowledge of modern engineering approaches including MVVM architecture, coordinator-based navigation and protocol-oriented design.\nExperience working within modular, feature-based architectures, applying reactive and asynchronous programming using Combine and Swift Concurrency (async/await) to build scalable and maintainable applications.\nExperience applying quality-focused engineering practices, including test-driven development, unit testing, test doubles and automated UI testing.\nUnderstanding of mobile application security requirements within regulated environments, alongside experience designing accessible digital experiences that support inclusive customer outcomes.\nSome other highly valued skills may include:\nExperience supporting CI/CD pipelines, coordinating multiple build configurations and maintaining internal dependencies using tools such as CocoaPods.\nExperience developing financial services or other regulated applications, including understanding compliance and security requirements.\nKnowledge of application performance monitoring, analytics instrumentation and continuous service improvement practices.\nExperience collaborating across multidisciplinary agile teams to deliver technology solutions that support customer and business outcomes.\nYou may be assessed on the key critical skills relevant for success in role, such as risk and controls, change and transformation, business acumen, strategic thinking and digital and technology, as well as job-specific technical skills.\nThis role will be based in Northampton or 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