Malik is available for hire
Hire MalikMalik Chohra
Verified Expert in Engineering
AI Developer
Berlin, Germany
Toptal member since May 29, 2026
Bio
Malik builds AI-native mobile apps and brings AI into mobile teams without trading stability for speed. With eight years in software and seven in React Native development, he served as an app lead at ScorePlay and led mobile development at DocMorris, shipping products to 9+ million users. Malik is sharpest on the hard parts: native modules in Swift and Kotlin and AI integration that holds when a model misbehaves. He also delivered open-source tooling, including Wire RN and AI Mobile Launcher.
Portfolio
ScorePlay
React Native, JavaScript, TypeScript, Expo, Node.js, React, Go...
DocMorris
Expo, React Native, TypeScript, NestJS, React, Real-time Data...
CoachHub
Agile, React Native, Expo, TypeScript, Firebase, Sentry, Datadog, Node.js...
Experience
- TypeScript - 8 years
- React Native - 8 years
- Expo - 8 years
- Swift - 5 years
- Kotlin - 5 years
- AI SDK - 3 years
- OpenAI - 2 years
- Claude - 2 years
Preferred Environment
React, React Native, Expo, AI SDK, Node.js, Web3, Claude, OpenAI
The most amazing...
...success has been taking Mindshine from 4.3 to 4.9 stars and from 20,000 to 250,000 users in three months, contributing to its acquisition by Greator.
Work Experience
App Lead
2025 - 2026
ScorePlay
- Redesigned the app from scratch using a modern stack, including React Native with Expo managed workflow, native modules for background upload and download, Redux Toolkit, and RTK Query, shipping the new version in five months.
- Integrated an AI specification-driven development (SDD) approach with full coding agents throughout the development cycle.
- Optimized performance across image-heavy media flows.
- Created a background native module using Swift and Kotlin.
- Contributed to scalability, performance, and security, and led the whole mobile team.
Technologies: React Native, JavaScript, TypeScript, Expo, Node.js, React, Go, Artificial Intelligence (AI), Technical Leadership, App Store, App Store Optimization (ASO), Google Play API, Push Notifications, Android, iOS, Mobile Development, Figma, Twilio, SMS, Claude, Claude Code, Architecture, Vibe Coding, Full-stack, Delivery, PostgreSQL, Mobile App Development, Firebase, Sentry
Tech Lead
2023 - 2025
DocMorris
- Defined and implemented the mobile architecture, including the introduction of NFC scanning for electronic health cards. Led an NFC feature team of six mobile engineers, developing native modules and integrating them seamlessly with React Native.
- Established mobile engineering best practices, including code quality standards, review processes, and technical decision-making. Mentored engineers through regular one-on-ones, technical guidance, and architectural reviews.
- Improved mobile app performance index by 35% by introducing Datadog monitoring, performance profiling, and stricter linting standards. Built and scaled a backend-for-frontend (BFF) using NestJS, supporting up to nine million active users.
Technologies: Expo, React Native, TypeScript, NestJS, React, Real-time Data, Technical Leadership, WebSockets, Android, Swift, iOS, Mobile Development, Mobile App Development, AI Integration, API Integration, Full-stack, PostgreSQL, Progressive Web Applications (PWAs), WhatsApp API, Sentry, Gradle, Redux, UI Design, UX Design, Mobile Apps, Firebase, Front-end
Senior Mobile Engineer
2022 - 2023
CoachHub
- Built the mobile CI/CD pipeline on Fastlane and GitHub Actions, cutting release time and making deploys reliable.
- Raised test coverage by 30% with a mobile end-to-end testing strategy on Jest and Detox, defined from scratch.
- Streamlined the app performance index from 60% to 80% and reduced the crash rate by 13%, reaching a 96% crash-free rate.
- Integrated demanding 3rd-party SDKs, including real-time video chat. Standardized state management on Redux Toolkit and mentored junior engineers through code review.
Technologies: Agile, React Native, Expo, TypeScript, Firebase, Sentry, Datadog, Node.js, React, Front-end
Lead Mobile Engineer
2021 - 2022
mindshine
- Took the App Store rating from 4.3 to 4.9 in three months, working off analytics that flagged the app's love moments.
- Raised the performance index by 43% and the crash-free rate by 19% (to 98%) using Firebase Analytics, Crashlytics, and targeted crash clustering.
- Conducted A/B testing on the onboarding flow, improving retention and conversion.
- Partnered with the back end on a Ruby on Rails API that served 250,000+ monthly users. Owned mobile delivery against a shared roadmap with product, marketing, sales, and engineering teams.
Technologies: Agile, Development, React Native, Ruby, Product Management, TypeScript, JavaScript, Firebase, Sentry
Tech Co-founder
2018 - 2020
demystify
- Architected the full stack, including a React Native app, a React web platform, and a Node.js and MongoDB payment back end on AWS.
- Built the crypto wallet app and a custom gift-card purchase flow as a proof of concept.
- Wrote the company's ERC20 token in Solidity for the ICO.
- Owned technical direction, working directly with the CEO and PM on the MVP roadmap.
Technologies: Blockchain, Web3, React, React Native, Ethereum, Node.js, MongoDB, Stripes, Firebase, Front-end
Experience
Wire AI
https://getwireai.com/I built and published an open-source generative UI SDK for React Native (v0.1.3), featuring 11 built-in components with Zod-validated schemas and 5 LLM adapters, including OpenAI, Anthropic, Gemini, Ollama, and Google's A2A protocol, enabling an LLM to ship native UI to a mobile app turn by turn.
AI Mobile Launcher
https://aimobilelauncher.com/I engineered a React Native boilerplate designed to eliminate the six weeks of repetitive setup every AI mobile app requires. It comes in three tiers: a core stack of Expo, Supabase, Redux Toolkit, RTK Query, Restyle, and RevenueCat, plus a dedicated AI tier with both local and cloud AI integration and generative UI support.
ScorePlay Mobile App
https://www.scoreplay.io/blog/new-scoreplay-mobile-appScorePlay is the media management platform for the sports industry. 200+ rights holders, leagues, and teams use it (UEFA, Premier League, NBA, NHL, Paris 2024) to organize, tag, and distribute their photo and video content.
The company is Series A ($20 million), backed by Alexis Ohanian, Kevin Durant, and Giannis Antetokounmpo.
I led mobile for the React Native (Expo) app, the surface athletes, media teams, and clubs use to grab and share media from wherever they are. I ran a team of 3 engineers and worked directly with the CTO, CEO, and mobile product manager.
The app is media-heavy, so performance was a constant fight. I wrote native modules in Kotlin and Swift for background fetching and bridged them into React Native, then used Datadog to find what was slow and fix it.
Features I shipped include search, authentication, and deep linking.
I also ran an AI-assisted, spec-driven development pilot for the mobile team. After that, I created the entire AI assistant workflow for our mobile teams using Claude Code, and we are now taking that approach to the front end.
The company is Series A ($20 million), backed by Alexis Ohanian, Kevin Durant, and Giannis Antetokounmpo.
I led mobile for the React Native (Expo) app, the surface athletes, media teams, and clubs use to grab and share media from wherever they are. I ran a team of 3 engineers and worked directly with the CTO, CEO, and mobile product manager.
The app is media-heavy, so performance was a constant fight. I wrote native modules in Kotlin and Swift for background fetching and bridged them into React Native, then used Datadog to find what was slow and fix it.
Features I shipped include search, authentication, and deep linking.
I also ran an AI-assisted, spec-driven development pilot for the mobile team. After that, I created the entire AI assistant workflow for our mobile teams using Claude Code, and we are now taking that approach to the front end.
DocMorris
DocMorris is a German digital pharmacy serving 9+ million users. I led the mobile team of 6 through one of its most trust-critical projects: integrating Germany's NFC electronic health cards as a sign-in factor for the app.
That meant native module work on both platforms, Swift on iOS and Kotlin on Android. Android was the hard part. NFC chipsets behave differently across phone models, so we hit fragmentation bugs deep into testing and still shipped on time by cutting non-essential features from v1.
I also pushed the app's quality numbers. Crash-free rate climbed to 96%, and the performance index went from 60 to 80, through observability with Datadog, a FlatList migration for heavy lists, and code splitting to shrink the bundle.
The last piece was a backend-for-frontend layer I built in NestJS. Mobile clients were hitting 7+ services directly, which was slow over mobile networks. The BFF handled projection and batching, cut payloads roughly 4x, and went live without an outage.
That meant native module work on both platforms, Swift on iOS and Kotlin on Android. Android was the hard part. NFC chipsets behave differently across phone models, so we hit fragmentation bugs deep into testing and still shipped on time by cutting non-essential features from v1.
I also pushed the app's quality numbers. Crash-free rate climbed to 96%, and the performance index went from 60 to 80, through observability with Datadog, a FlatList migration for heavy lists, and code splitting to shrink the bundle.
The last piece was a backend-for-frontend layer I built in NestJS. Mobile clients were hitting 7+ services directly, which was slow over mobile networks. The BFF handled projection and batching, cut payloads roughly 4x, and went live without an outage.
Myelino
https://myelino.com/Myelino is a social app for finding hangouts in the Dubai area. The app helps you create groups, check out different hangout spots, and decide on them with friends.
The app uses AI to suggest places based on the user's preferences, and a voting mechanism to help people decide.
The app uses AI to suggest places based on the user's preferences, and a voting mechanism to help people decide.
Education
2015 - 2020
Master's Degree in Computer Science
Higher National School of Computer Science - Algiers, Algeria
Skills
Libraries/APIs
React, Node.js, Socket.IO, Google Play API, WhatsApp API, Stripe, Stripe API, Claude API, React Navigation
Tools
Expo, AI SDK, Claude, Sentry, Claude Code, Claude Agent SDK, Figma, Gradle, Redux Toolkit
Languages
JavaScript, Swift, Kotlin, TypeScript, Go, Ruby
Frameworks
React Native, NestJS, Stripes, Next.js, Tailwind CSS, Redux
Platforms
Mobile, Android, iOS, Firebase, Blockchain, Ethereum, Twilio, Amazon
Paradigms
Agile, Mobile Development, App Store Optimization (ASO), UI Design, UX Design
Storage
Datadog, MongoDB, PostgreSQL
Other
OpenAI, Software, Development, Artificial Intelligence (AI), Web3, Product Management, Cursor AI, Team Leadership, Remote Team Leadership, Tailwind UI, Generative UI (GenUI), Real-time Data, Technical Leadership, WebSockets, App Store, Push Notifications, SMS, Architecture, Vibe Coding, Full-stack, Delivery, Mobile App Development, AI Integration, API Integration, Progressive Web Applications (PWAs), Mobile Apps, Supabase, GPS, Front-end, Generative Design, Marketplaces, Claude Design, CTO, Fractional CTO
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