Pratham Mehta, Developer in London, United Kingdom
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Pratham Mehta

Bio

Pratham is a full-stack engineer with 10+ years of experience building products end-to-end. He spent 6 years at Amazon (Prime Video), building and operating services that handle millions of concurrent requests using AWS. He also has deep expertise in React Native, having shipped numerous cross-platform apps for clients worldwide. From cloud infrastructure to polished mobile experiences, Pratham thrives in owning the full stack and communicates effectively within teams.

Portfolio

Fly
Google Cloud Functions, Firebase, Node.js, React Native, Secure Storage, APIs...
Amazon UK
Amazon Web Services (AWS), React, Java SE (Core Java), TypeScript, Python...
Striga
Blockchain, Bitcoin, React Native, React, User Interface (UI), API Integration...

Experience

  • Mobile - 4 years
  • React Native - 3 years
  • Google Maps - 3 years
  • iOS - 3 years
  • Android - 3 years
  • Firebase - 3 years
  • JavaScript - 3 years
  • Python 3 - 3 years

Preferred Environment

React Native, Amazon Web Services (AWS), Apple, Android, Apps

The most amazing...

...: I built and ran back-end services at Amazon Prime Video, handling millions of requests as users streamed content on one of the world's largest platforms.

Work Experience

Developer

2019 - PRESENT
Fly
  • Worked as the sole developer for the front-end and back-end technologies on Fly, an app that allows aviation enthusiasts to log all their journeys across the world.
  • Oversaw the end-to-end deployment of the project. Built the iOS app using native and React Native technologies.
  • Built the back-end services using Node.js and Python on the Google Cloud Platform.
  • Designed, maintained, and updated the app's user interface regularly to align with Apple's yearly iOS updates.
  • Delivered the app to the App Store. Managed releases on the App Store, as well as marketing via AppStoreConnect, including in-app events and subscriptions.
Technologies: Google Cloud Functions, Firebase, Node.js, React Native, Secure Storage, APIs, React, User Interface (UI), API Integration, Event-driven Architecture, QR Codes, REST APIs

Software Development Engineer II

2020 - 2026
Amazon UK
  • Worked as a full-stack engineer in the Prime Video organization for 6 years (2020–2026).
  • Built and maintained back-end services handling millions of requests per second as users watched content on Prime Video.
  • Used AWS services extensively, including EC2, Lambda, ECS, CDK, CloudFront, S3, EventBridge, SQS, and SNS.
  • Built front-end web experiences using React. Built several tools within the organization that were used both within Amazon and by external stakeholders outside of the company.
  • Participated in on-call rotations (one week every 1.5 months), developing strong skills in debugging, incident response, and operational excellence.
Technologies: Amazon Web Services (AWS), React, Java SE (Core Java), TypeScript, Python, Amazon S3 (AWS S3), Amazon EC2, AWS ECS Fargate, AWS IAM, Amazon Simple Queue Service (SQS), Amazon Simple Notification Service (SNS), User Interface (UI), Java, ACID, API Integration, SQL, Event-driven Architecture, Infrastructure, Event-driven Systems, REST APIs, Transactions, NoSQL

Freelance Mobile Developer

2018 - 2020
Striga
  • Worked at Lastbit, a cryptocurrency company building software and hardware to help people securely store and spend their cryptocurrency.
  • Collaborated with the Lastbit team to build their entire bitcoin wallet.
  • Integrated SegWit, Bech32, BIP44, BIP49, and so on into the bitcoin wallet.
  • Implemented a lightning wallet that was deeply integrated with the bitcoin on-chain wallet.
Technologies: Blockchain, Bitcoin, React Native, React, User Interface (UI), API Integration, Ledgers, REST APIs

Chief Technology Officer

2016 - 2018
GrabbnGo
  • Served as the CTO of GrabbnGo and was responsible for the entire tech stack.
  • Filed a patent at GrabbnGo for "Delayed Just In Time Ordering."
  • Architected the entire system along with the schemas, technologies, and frameworks used.
  • Built a real-time location arrival and departure prediction and engine.
  • Developed an end-to-end inventory and order management system capable of maintaining inventories of large grocery stores.
  • Built an indoor-mapping solution capable of mapping building layouts like grocery stores, malls, or airports, and provided real-time directions.
Technologies: Express.js, Node.js, Django, iOS, React Native, User Interface (UI), API Integration, Ledgers, SQL, Infrastructure, Event-driven Systems, REST APIs, Transactions

Summer Intern

2015 - 2015
Microsoft
  • Built a tool to enable teams across Microsoft to quickly deploy build, test, and production environments.
  • Worked extensively with Azure and Azure VM Management.
  • Supported automated environment deployments with ARM templates.
  • Performed system configuration and automation using desired state configuration.
Technologies: Windows PowerShell, Azure, .NET, C#, API Integration, Infrastructure, REST APIs

Experience

Corproof | An App to Help Construction Workers Have Safer and More Productive Lives

Corproof is a React Native app for iOS and Android that helps construction workers stay safe on the job while being productive. I built the entire app based on the beautiful designs provided by the client.

Project Details:
• The app was designed as an offline-first app where all data was locally cached. Even form submissions are saved locally and submitted when an internet connection is available.
• The app uses Firebase cloud messaging for notifications.
• The app uses the Geolocation API to get the location of the user.
• The app works with complex and dynamically generated forms based on an API.

lastbit | Secure App/device to Store and Spend Your Cryptocurrency

https://lastbit.io
lastbit is a hardware company that specializes in making highly secure devices to store and spend cryptocurrencies.

I worked as a freelancer at lastbit and helped build the iOS and Android apps on React Native. The app works with several advanced technologies like Bech32, SegWit, and more.

The app also features a lightning wallet for Bitcoin where users can instantly make transactions without having to wait for on-chain confirmations.

Shyne! | Make Music

Shyne is an iOS app that lets users mix different types of music, record audio tracks, sing over the audio and share the audio with their friends. I built the entire app.

The app features an Audiobus integration, in-app purchases, multi-channel audio processing, and file management.

GrabbnGo | Virtual Drive-through App

Order your favorite food on the GrabbnGo app and pick it up on your way home, at the office, or at a friend’s place. You won’t even need to park your car. Just reach the GrabbnGo pick-up point next to the restaurant and hot-and-fresh food will be waiting for you.

I was responsible for the entire tech stack at GrabbnGo and built the app from scratch in React Native. I also built part of the server in Django.

Education

2012 - 2016

Bachelor of Technology Degree in Information Technology

VIT University - Vellore, India

Certifications

OCTOBER 2017 - PRESENT

Improving Deep Neural Networks: Hyperparameter Tuning, Regularization, and Optimization

Deeplearning.ai via Coursera

SEPTEMBER 2017 - PRESENT

Neural Networks and Deep Learning

Deeplearning.ai via Coursera

MAY 2017 - PRESENT

Understanding Einstein: The Special Theory of Relativity

Stanford University via Coursera

Skills

Libraries/APIs

Google Maps, React, REST APIs, Node.js, Facebook Login, Core Audio

Tools

Sketch, GitHub, Reactotron, AWS IAM, Amazon Simple Queue Service (SQS), Amazon Simple Notification Service (SNS)

Frameworks

React Native, Django, Express.js, .NET, Windows PowerShell, The Amazing Audio Engine (TAAE)

Paradigms

Event-driven Architecture, ACID, Human-computer Interaction (HCI)

Platforms

iOS, Android, Firebase, Mobile, Apple, MacOS, Windows, Linux, Blockchain, Azure, Visual Studio Code (VS Code), Amazon Web Services (AWS), Amazon EC2

Languages

JavaScript, Python 3, Java, SQL, C#, Java SE (Core Java), TypeScript, Python

Storage

PostgreSQL, NoSQL, Redis, Amazon S3 (AWS S3)

Other

Location Services, Apps, User Interface (UI), API Integration, Infrastructure, Event-driven Systems, OOP Designs, Ledgers, QR Codes, Transactions, Bitcoin, Google Cloud Functions, Operating Systems, Data Structures, Algorithms, Secure Storage, APIs, AWS ECS Fargate

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