Senior App Engineer

Senior App Engineer

Conditions

Posted Date Mar 17, 2026 Employment Type Full-time Experience Level Not Applicable Location United Kingdom Category ** Programming ** Company **TrustedHousesitters **

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?

TrustedHousesitters is a fast-growing, direct-to-consumer marketplace redefining pet care and travel. Our platform connects a thriving global community of pet lovers through a unique trust-based membership model. We’re on a mission to create a world where pet owners can travel with peace of mind, knowing their pets are in safe hands, while sitters enjoy unique homestays around the world.

Our vision is simple: to become the world’s most loved travel solution for pet people—and we’re making it a reality. With almost 280,000 members worldwide, 97% of our community reports that our service has improved their lives. Our growth remains high, fueled by a passionate community and a commitment to excellence.

TrustedHousesitters was named one of Escape the City's top organisations to work for in 2023 and was proud to be part of the 2024 cohort of Technation’s Future Fifty , the UK’s leading pre-IPO programme. In October 2024, we secured B Corp certification , reflecting our rigorous commitment to our people, the planet, and the pets we serve.

At TrustedHousesitters, we embrace a high-impact work environment where innovation, individual accountability, and ownership drive our success. We empower our engineers to see the tangible impact of their work, continuously iterating and innovating to strengthen our global community.

Now is an exceptional time to join TrustedHousesitters. If you are looking to drive meaningful impact within a mission-led, fast-scaling tech business, we invite you to explore this opportunity.

**Benefits

** In addition to a competitive salary and bonus, we offer a range of benefits, including:

• Fully remote work
• Discretionary 10% annual bonus scheme
• Generous equity options
• 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 Interested in remote work opportunities in Development & Programming? Discover Development & Programming Remote Jobs featuring exclusive positions from top companies that offer flexible work arrangements.
• 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, analyzing 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.

The Opportunity

**** We are seeking a highly motivated Senior App Engineer to join our Member Experience squad within the Member Lifetime Value organisation. This squad is instrumental in delivering a premium experience to our members and plays a vital role in our strategy to scale from 250,000 to 1 million members.

This role is centered on mobile development with a strong emphasis on user experience, performance, and accessibility. Operating within a collaborative, experimentation-driven environment, you will have significant autonomy and ownership over the features that define how pet owners and sitters connect globally.

****Core Responsibilities

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• Technical Leadership: Lead technical discovery, architectural planning, and the end-to-end implementation of complex product features.
• Engineering Excellence: Develop and maintain high-performance, accessible, and engaging mobile interfaces using React Native and Expo.
• Cross-Functional Partnership: Collaborate closely with Product Managers, Designers, and stakeholders to align technical execution with business objectives.
• Mentorship & Quality: Enhance the capabilities of the engineering team through active pairing, comprehensive code reviews, and structured knowledge-sharing.
• Scalable Architecture: Maintain and evolve scalable mobile architectures, ensuring adherence to secure coding practices and performance optimisation standards.
• Product Iteration: Contribute to a culture of measurement and continuous improvement, utilising data and user feedback to refine the product.

****Professional Requirements

• Technical Proficiency: 4+ years of professional experience in mobile application development, with deep expertise in React Native and JavaScript/TypeScript.
• Platform Expertise: Proven hands-on experience with Expo and modern JavaScript build tooling (e.g., Webpack, Vite).
• Architecture & Standards: Strong understanding of scalable mobile architectures, accessibility (a11y) standards, and mobile performance optimisation.
• Integration: Experience collaborating with API developers and successfully integrating complex third-party platforms.
• Operational Awareness: Familiarity with CI/CD pipelines and automated testing/observability strategies (e.g., GitHub Actions, Sentry).
• Communication: Exceptional communication skills with the ability to articulate technical strategy to both technical and non-technical audiences.

****Nice to have

• Full-Stack Capability: Production-grade experience with React for web and backend frameworks (preferably Python/Django and Django Rest Framework).
• Emerging Technologies: Experience integrating AI/ML-powered tools to enhance user personalisation or automation.
• Data-Informed Growth: Familiarity with A/B testing frameworks and data-driven product experimentation.
• Observability: Experience leveraging tools such as Datadog to monitor and improve application health.

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