Writing about engineering leadership, React Native, and building great teams.https://warrendeleon.com/https://warrendeleon.com/blog/how-to-write-a-take-home-tech-test-that-candidates-actually-want-to-do/https://warrendeleon.com/blog/how-to-write-a-take-home-tech-test-that-candidates-actually-want-to-do/Most take-home tests fail because of setup friction, unclear briefs, or disrespecting people's time. This is how I designed one that candidates thank us for.Mon, 20 Apr 2026 00:00:00 GMThttps://warrendeleon.com/blog/how-i-designed-a-tech-test-scorecard-that-works-from-graduate-to-senior/https://warrendeleon.com/blog/how-i-designed-a-tech-test-scorecard-that-works-from-graduate-to-senior/How a checklist-based scorecard made our React Native take-home test work for every level, from Graduate to Senior. A practical guide to designing a fair hiring process.Mon, 13 Apr 2026 00:00:00 GMThttps://warrendeleon.com/blog/how-to-pass-a-react-native-tech-test/https://warrendeleon.com/blog/how-to-pass-a-react-native-tech-test/Practical advice from someone who reviews take-home tech test submissions. What actually matters, what doesn't, and the mistakes that cost candidates the job.Mon, 06 Apr 2026 00:00:00 GMThttps://warrendeleon.com/blog/why-i-redesigned-our-react-native-tech-test-in-my-first-week/https://warrendeleon.com/blog/why-i-redesigned-our-react-native-tech-test-in-my-first-week/I joined Hargreaves Lansdown as Engineering Manager and one of my first projects was rethinking the hiring process for platform roles. What I learned and what I built.Sun, 29 Mar 2026 00:00:00 GMT