Mobile Shift Engineer

We're building a lightweight companion app that helps learners stay engaged, practise skills on the go, and deepen their connection with the THM ecosystem. You'll partner closely with engineers, design, product, and content to shape what "THM on mobile" actually means. There's no legacy, no inherited constraints — you'll be building the foundations, the architecture, and the app experience from scratch. It's a rare opportunity to own a greenfield mobile product at a fast-growing company with millions of users, helping us test, learn, and define the long-term mobile direction for the business. We're looking for a Senior/Lead Mobile Engineer to build TryHackMe's first mobile experience from the ground up. Your work will help us understand how mobile can strengthen learner engagement, support daily practice, and bring the platform closer to our global community. The role is hands-on and delivery-focused: shaping the architecture, building the first version of the app, and navigating the practical realities of app-store approvals, metadata, and release processes. Success means delivering a lightweight but genuinely useful companion app that helps us test the waters for a broader mobile strategy. Building and maintaining the mobile application using React Native inside Expo, delivering a high-quality experience across iOS and Android. Owning the full mobile lifecycle: prototyping, metadata setup, store submission, quality gates, and release. Establishing sensible foundations for build and deployment pipelines (CI/CD) as the app evolves. Ensuring compliance with Google Play and App Store requirements, including test accounts and submission standards. Proven experience shipping mobile apps end-to-end to both app stores, ideally as the primary or sole engineer on at least one project. Strong expertise in React Native and Expo, with the judgement to make pragmatic technical decisions that balance speed and long-term direction. Comfortable working closely with product, design, and founders to shape what the app should be — not just implementing requirements, but helping define them. Solid grounding in TypeScript, modern React patterns, and the nuances of mobile performance, rendering, and app structure. Ability to navigate the gritty parts of mobile delivery: metadata, screenshots, test accounts, Apple submission quirks, and Play Store requirements. Someone who cares deeply about quality and user experience, even when moving fast — and knows when "good enough for v1" is the right call. Passion for building products that help people learn, grow, and push themselves — enthusiasm that matches the energy and mission that built TryHackMe. Experience creating or extending native modules (Swift/Kotlin). Familiarity with Detox or mobile E2E testing approaches. Interest in cyber security, education, or developer learning ecosystems. We determine salaries based on Geographic Location, Seniority, Interview Performance, and Market Rates using leading compensation benchmarking tools. 100% Remote - Work from the UK or EU with strong alignment to UK working hours. Swag Pack - start your TryHackMe journey with a sought-after branded swag bundle Personal Development - £2,500 training budget to acquire certifications, books and more. Health Insurance - if you're in a country that doesn't have public health care. 401k / Pension - TryHackMe makes it easy to save money for your retirement. Lunch on us - whether you're a pizza-lover, salad obsessed or a big sushi fan, TryHackMe will cover the cost of your lunch order during our recurring company virtual lunches. A short call with our Talent team and Hiring Manager. We'll explore your background, experience shipping mobile apps, and what appeals to you about building a v1 product at TryHackMe. We'll talk through what you built, the architectural and product decisions behind it, and your experience navigating real-world mobile engineering challenges. Stage Three - Paid Take-Home Task + Presentation: You'll complete a small, focused React Native/Expo task (2–3 hours max) that helps us understand how you structure and deliver mobile functionality - We pay £200 for this work - Once submitted, you'll join us for a 30–45 minute presentation where you walk us through your thinking, decisions, and what you'd refine with more time. This is an opportunity for you to understand our long-term vision and ask deeper product and strategy questions. TryHackMe takes the pain out of learning and teaching cyber security. Our platform makes it a comfortable experience to learn by designing prebuilt courses that include virtual machines (VM) hosted in the cloud and ready to be deployed. Our platform is perfect for CTFs, Workshops, Assessments, or Training.