Mobile App Developer (iOS & Android) Mobile Apps View role

Build Megaroam and Megaconnect, the eSIM apps travellers use in 200+ countries.

Job overview

Team Product · Mobile Apps

Location Remote

Employment type Full-time

Experience 3+ years building and shipping mobile apps

Megarefill is a digital marketplace for gift cards, mobile top-ups and travel eSIMs. Since 2023 we have been building, from London, the simplest way to buy digital products online: customers in 190+ countries pay by card, Apple Pay or more than 20 cryptocurrencies and get their code, recharge or eSIM in seconds.

We also build our own mobile apps: Megaroam, a travel eSIM app for 200+ countries, and Megaconnect, which gives people a real UK +44 phone number on an eSIM.

About your team

You will join the Mobile Apps team, which owns Megaroam and Megaconnect from idea to release. The team brings together mobile developers, a product designer and a product manager, working closely with the backend team that runs our eSIM, payments and wallet APIs.

Both apps are live on iOS and Android and growing quickly. We release often, measure everything and care a lot about how fast and simple buying an eSIM feels.

About the tech

Apps

• React Native with TypeScript
• Native modules in Swift and Kotlin where needed
• One-tap eSIM installation on iOS and Android
• Laravel REST APIs for orders, wallet and referrals
• Stripe, Apple Pay and Google Pay
• Push notifications and deep links

Quality & releases

• Crash and performance monitoring
• Automated builds and test releases
• App Store and Google Play release process

What you’ll do

• Build new features for Megaroam and Megaconnect, from plan search to checkout and eSIM installation
• Integrate payments, wallet, referral and eSIM provisioning APIs together with the backend team
• Keep the apps fast and stable: crash rate, start-up time and app-store ratingsPrepare, test and publish releases on the App Store and Google Play
• Work with design on new flows and A/B tests that improve conversion
• Review code and help shape how we build mobile at Megarefill

What you’ll bring

• 3+ years of experience building and shipping consumer mobile apps
• Strong React Native and TypeScript skills, or native Swift / Kotlin experience
• Experience with REST APIs, authentication and in-app or card payments
• Good knowledge of App Store and Google Play review guidelines
• You care about details, performance and the user experience

Nice to have

• Experience with eSIM, telecom or fintech products
• Native iOS (Swift) or Android (Kotlin) experience next to React Native
• Experience with analytics, attribution or A/B testing tools

What it’s like to work at Megarefill

• Fully remote, with flexible hours across time zones
• Competitive salary in USD, reviewed every year
• Yearly budget for courses, books and conferences
• Megarefill gift cards, top-ups and eSIM data within a yearly allowance
• Real ownership: your work ships and you see its impact on customers

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