Principal Software Engineer, Mobile (React Native)

Nine Elms, London – Full‑time (5 days a week on‑site)

About Zapp

Zapp is London’s leading premium convenience retail platform. Founded in 2020, our vision is to disrupt the multi‑trillion dollar convenience retail market, currently dominated by major players, by developing best‑in‑class customer‑centric technology and fulfilment solutions. Zapp partners with some of the world’s leading brands to deliver an exclusive range of hand‑picked products 24/7, delivered in minutes.

Quick commerce is a genuinely hard mobile problem. Stock changes by the second, orders and riders move in real time, and we make sub‑minute promises we have to keep, all on patchy high‑street connections across a huge range of devices. Getting that right, fast and reliably, is the job.

We are serious about AI, as a way of working rather than a slogan. AI‑assisted development is part of the daily toolkit here, and we ship LLM‑powered features where they genuinely make the produc...