Senior App Engineer

TrustedHousesitters is a fast growing, direct-to-consumer marketplace that is redefining pet care and travel. Here at TrustedHousesitters, we’re on a mission to make travel work better for pets, for their people, and for the global community of animal lovers who look after them. We’ve got big plans on becoming the world’s most-loved travel solution for pet people. We’ve built something pretty special: a trusted place where pet owners and sitters connect to keep pets happy at home while their humans explore the world. We’ve already grown into a global community with members in over 140 countries, a product people genuinely love, and a team of more than 100 brilliant humans powering it all. But we’re only just getting started. Our goal? To grow to 1 million members and make TrustedHousesitters the world’s most-loved travel solution for pet people. At the moment, a sit starts every two minutes somewhere on the planet. We want that to be every single minute and we know the only way we’ll get there is with the right people in the right roles. The right people in the right roles will shape our future. So, here’s the big question: Could that be you? More About The Role: We are seeking a motivated Senior App Engineer to join our Member Experience squad within our Member Lifetime Value org, which plays a critical role in delivering a 5 star sit experience to pet owners & sitters, driving our mission to scale TrustedHousesitters from 250K to 1 million members This mobile development role leans heavily into user experience, with a strong emphasis on building fast, accessible, and engaging products. The ideal candidate will bring deep expertise in technologies like React Native, Expo, and modern mobile best practices. Full-stack experience (with React for web, Django, and Django Rest Framework) would be a bonus. In this collaborative, experimentation-driven environment, iteration, autonomy, and impact are key. We seek an engineer passionate about our users and committed to our vision of becoming the world's most-loved travel solution for pet people. You will have meaningful ownership over features that directly shape how pet owners and sitters connect for a great sit experience. We're looking to pay between £65,000- £80,000 for this role and you must already be living in the UK, with full rights to work in the UK. What you'll bring Proven experience (4+ years) in mobile app development, including production-grade React Native, Expo, and JavaScript/TypeScript. A mindset geared toward experimentation, measurement, and continuous improvement, especially within growth-driven product teams. Strong understanding of scalable architectures, accessibility, performance optimisation, and secure coding practices. Experience supporting & working with API developers and integrating with third-party platforms. Hands-on experience with JavaScript build tooling such as Webpack, Vite, and Expo. Solid foundation in component styling, HTML, CSS, and accessibility best practices. Comfortable carrying out technical discovery, architecture planning of features, and owning the implementation of complex product features. Excellent communication skills and confidence in collaborating cross-functionally with Product Managers, Designers, and non-technical stakeholders. Experience mentoring engineers through pairing, code reviews, and knowledge-sharing. Familiarity using CI/CD pipelines and automated testing strategies (e.g., GitHub Actions, Sentry). Nice to have Experience championing and improving accessibility best practices in a React Native codebase. Proven experience in full-stack development, including production-grade React for web and backend development preferably with Python, Django, and Django Rest Framework or equivalent language/frameworks. Experience designing, building, and evolving APIs and integrating with third-party platforms. Experience integrating AI/ML-powered tools or APIs (e.g. GPT, image recognition, personalisation engines) to enhance user experience or automate tasks. Familiarity with A/B testing frameworks or data-informed experimentation (especially for growth/product squads). Familiarity using observability tools (e.g. Datadog). Benefits In addition to a competitive salary and bonus, we offer a range of benefits, including: Fully remote work Generous equity options Discretionary 10% annual bonus scheme 25 days holiday annually plus bank holidays and Christmas to New Year closure Pension scheme: 5% from you as an employee and 3% from TrustedHousesitters Premium TrustedHousesitters pet owner and sitter membership. This includes benefits like airport lounge passes, sit cancellation insurance, and home and contents insurance for sits for you X5 premium memberships for your friends and family each year Our team have an unlimited housesitting allowance, can work remotely from their sits, and are eligible to £500 per year towards travel costs £200 annually towards home office equipment Access to Spaces (co-working) Locations across the globe Monthly working from home stipend Macbook Find a rescue pet to join your family and we’ll cover the adoption fees, as well as paternity to help any pet settle into their new home. We host a quarterly all-expenses paid meet-up and will fund team events (remote or in person) throughout the year We can cover costs of personal development resources, and have a regular time set aside for personal development Bupa Health Insurance and Dental Insurance plan SimplyHealth Healthcare Cash plan Trusted Giving scheme - employee volunteering via Onhand and employee giving via Tyve Weekly virtual yoga sessions Brighton Bikeshare Recruitment Referral Bonus If you're ready to join us on our mission to become the most loved pet travel solution, we'd love to hear from you In your application, please feel free to note which pronouns you use (For example- she/her/hers, he/him/his, they/them/theirs, etc). At the heart of our team are a mix of diverse backgrounds. Here at TrustedHousesitters, we’re committed to the equal opportunities policy throughout the interview process and selection. Offers of employment into TrustedHousesitters are based solely on individual merit, qualifications, and the person's professional suitability. Gender identity, sexual orientation, marital or civil partnership status, colour, race, nationality, ethnic or national origins, religion or beliefs, age, mental or physical disability, medical condition, pregnancy or maternity status, or any other protected characteristics do not enter into our decision-making process. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analysing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.