Senior Mobile Developer

This is a fully remote position, open to applicants in Lithuania.

📋 Description

• Design, develop, and deploy features within the Numan app, overseeing the entire process from technical specification to release and post-launch evaluation.

• Write high-quality native code using Swift and SwiftUI or Kotlin and Jetpack Compose, ensuring robust test coverage.

• Shape and refine app architecture, focusing on modularization, state management, networking, offline functionality, and shared cross-platform methodologies.

• Collaborate with product and design teams to transform patient challenges into straightforward, user-friendly experiences.

• Partner with backend engineers to design efficient and secure APIs.

• Take ownership of app quality metrics, including crash rates, performance, startup times, and WCAG accessibility compliance.

• Utilize monitoring and analytics tools to identify and troubleshoot issues.

• Enhance mobile delivery pipelines, incorporating CI/CD, automated testing, feature flags, phased rollouts, and App Store/Google Play release management.

• Safeguard patient data through secure storage solutions, authentication, and privacy practices that comply with UK GDPR and healthcare regulations.

• Conduct constructive code reviews and produce documentation, RFCs, and PR descriptions.

• Mentor engineers, disseminate knowledge, and establish standards and practices for the mobile team.

• Participate in the interview process to help expand the team.

• Utilize AI coding assistants judiciously while maintaining code quality.

⛳️ Requirements

• A minimum of 5 years of professional experience in mobile app development, having successfully shipped and scaled at least one consumer app on the App Store or Google Play.

• Extensive expertise in native development on at least one platform: Swift and SwiftUI (iOS) or Kotlin and Jetpack Compose (Android).

• Familiarity with the other mobile platform is advantageous.

• Strong understanding of mobile architecture concepts, including MVVM, unidirectional data flow, dependency injection, and modularization.

• Experience with unit, UI, and snapshot testing, as well as developing testable code.

• Background in mobile CI/CD processes, such as Fastlane, Bitrise, GitHub Actions, or Xcode Cloud, with experience managing releases from start to finish.

• Proficient in integrating REST or GraphQL APIs, focusing on authentication, caching, and error management.

• Proven experience in owning substantial features or product domains and enhancing engineering practices within a team.

• Experience mentoring engineers and conducting effective code reviews.

• Strong communication skills with both technical and non-technical stakeholders, along with comfort in collaborating with product and design teams.

• Commitment to patient care and a solid understanding of privacy and accessibility considerations in health-related products.

• Experience working in an agile environment, delivering in sprints alongside product and design teams.

• Ability to handle special category health data in compliance with UK GDPR and healthcare standards.

🏝️ Benefits

• Share options.

• 25 days of holiday, plus bank holidays, increasing to 30 days based on tenure at Numan.

• Health insurance through Vitality.

• Electric car salary sacrifice scheme with Octopus.

• Enhanced maternity and parental leave.

• A day off on your birthday.

• Nursery benefit provided by YellowNest.

• Employee assistance program, including access to therapy, financial planning, and discounts.

• Generous pension scheme with contributions from both employees and employers.

• Flexible working arrangements.

• Dog-friendly office located in Farringdon.

• Personal training and development budget available via Learnerbly.

• Membership to Wellhub, providing access to over 2,000 locations in the UK.

• Cycle to work scheme.

• Season ticket loan.

• Discount on Numan products for friends and family.

• Paid volunteering days.

• An additional 2 weeks off upon reaching your 5th anniversary with Numan.