Smart Spaces is transforming how people interact with their workplace. Our platform delivers seamless smart-building experiences - from mobile access and room bookings to climate controls and social engagement - all from one app.We are looking for a Lead Mobile Engineer with a strong track record of Flutter experience to own the client-facing apps that drive our smart-building tenant experience. Our application allows for mobile credentials, desks, rooms, parking, and catering bookings - as well as building controls and other social features.We integrate with many third party SDK's (BLE locker control, Mobile Access Cards, Indoor Wayfinding etc) and some knowledge of Swift/Java will be useful for those integrations. Strong UI/UX is a must, as the core development will be full-stack. Most functionality is written by the API or integrations team but we need a strong developer that can do both.We're looking for a strong candidate who will set the technical direction for mobile, and have strong leadership mindset as will be mentoring a team. This role with is a cross functional role with closely with other teams as well as working directly with the CTO and Head of Product to shape and deliver the roadmap. We are looking for a pro-active, product mindset, who can work autonomously and collaboratively in a team.Role SummaryAs Lead Mobile Engineer, you will:Own the Mobile Roadmap: Work with the CTO and Head of Product to define and deliver a secure, scalable, and delightful mobile experience.Lead the Mobile Squad: Coach and mentor a talented team of engineers, run sprint planning, unblock issues, and raise risks early.Ensure Engineering Excellence: Drive a best-practice approach to testing, code quality, monitoring, crash reporting, and observability.Integrate Seamlessly: Work closely with back-end and integration teams to deliver functionality across complex third-party SDKs (BLE, mobile access, indoor wayfinding, etc.).Champion User-Centricity: Leverage app analytics and crash data to inform improvements to app health and user experience.Your ResponsibilitiesBuild and refine our Flutter apps: Clean UI, smooth animations, solid performance, low errors.Own mobile architecture: State management, networking, CI/CD and release pipelines, strong testing frameworks, monitoring and alerting.Lead the squad: Plan Sprints, unblock engineers, coaching and mentoring, raise risks early.Collaborate effectively with cross-functional teams and stakeholders to ensure technical choices align with product goals.Track and improve app health: Telemetry and insights to track tech debt and improvements, and improve crash-free rates, render times, and store ratingsProvide code reviews, feedback, and mentorship to junior developers.Required Skills3+ years working on production Flutter apps used by thousands5+ years working on iOS and Android development (Swift / Java / Flutter)10+ years of professional software engineering experienceDeep knowledge of modern state-managementHands-on monitoring expertise - Firebase Crashlytics, Sentry, New Relic, or equivalent.Strong written and verbal communication skills, especially when articulating technical decisions to non-technical colleaguesOrganised and resilient, with the ability to manage multiple priorities and maintain clarity in a fast-moving environment.Motivated by the opportunity to take ownership and build on the foundations already in place, strengthening people practices in a fast-paced, evolving environment.Desired SkillsPrior team-lead or tech-lead experience - delivery management and mentoringExposure to large-scale booking or other transactional systemsKnowledge of .NET or JavaScript-based backendsExposure to BLE, mobile credentials, or indoor navigation SDKsWhy Join Us?Impact at Scale: Be the driving force behind apps used by thousands of people across some of the worlds most innovative buildings.Product Ownership: Take full responsibility for the mobile experience, from roadmap to release.Supportive Leadership: Report directly to the CTO, with a seat at the table in shaping both product and technology direction.Future-Focused: Build tech that supports frictionless, sustainable, and people-centric workspaces.BenefitsCompetitive salaryHybrid working (London based office)25 days annual leave holiday + bank holidaysPrivate medical insuranceLife insurance coverFamily leaveOptical careCycle to work schemeWe support professional development with training & education opportunities availableEnhanced maternity & paternity payEmployee discounts & reward programmeEmployment is subject to the provision of proof of eligibility to work in the UK. #J-18808-Ljbffr