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Amit S. iOS, Android and Swift Platforms

My name is Amit S. and I have over 13 years of experience in the tech industry. I specialize in the following technologies: Swift, Objective-C, Android App Development, iOS Development, iOS, etc.. I hold a degree in Master's degree, Bachelor's degree. Some of the notable projects I’ve worked on include: Zalando Fashion App, Tipp24, Uber (Request a Ride), ClassTune, Lotto24. I am based in Hamburg, Germany. I've successfully completed 5 projects while developing at Softaims.

I specialize in architecting and developing scalable, distributed systems that handle high demands and complex information flows. My focus is on building fault-tolerant infrastructure using modern cloud practices and modular patterns. I excel at diagnosing and resolving intricate concurrency and scaling issues across large platforms.

Collaboration is central to my success; I enjoy working with fellow technical experts and product managers to define clear technical roadmaps. This structured approach allows the team at Softaims to consistently deliver high-availability solutions that can easily adapt to exponential growth.

I maintain a proactive approach to security and performance, treating them as integral components of the design process, not as afterthoughts. My ultimate goal is to build the foundational technology that powers client success and innovation.

Main technologies

  • iOS, Android and Swift Platforms

    13 years

  • Swift

    7 Years

  • Objective-C

    9 Years

  • Android App Development

    8 Years

Additional skills

  • Swift
  • Objective-C
  • Android App Development
  • iOS Development
  • iOS
  • iOS SDK
  • SwiftUI
  • UIKit
  • RxSwift
  • Android
  • Android NDK
  • Android SDK
  • Apple Xcode
  • Android Studio
  • Kotlin
  • J2SE
  • Java Servlet API

Direct hire

Potentially possible

Previous Company

SAP

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Experience Highlights

Zalando Fashion App

Zalando is one of Europe’s largest fashion platforms, offering seamless mobile shopping for millions of users. As a Senior iOS Engineer, I built a native Swift payment SDK handling ~3M transactions/month, reduced checkout latency by 15%, and replaced web flows with performant native UI components to boost conversion rates.

Tipp24

Tipp24 is a secure online lottery app that lets users play major lotteries like LOTTO 6aus49, EuroJackpot, and more directly from their iOS devices. As Senior iOS Engineer, I led the SwiftUI migration, refactored legacy Objective-C modules, and built interactive widgets — improving code quality, test coverage, and boosting weekly user engagement.

Uber (Request a Ride)

Uber’s flagship ride-hailing app connects millions of riders with nearby drivers for fast, reliable trips. It features real-time GPS tracking, fare estimation, secure payments, and in-app safety tools. As an iOS Engineer, I helped optimize the GPS tracking stack, improving location accuracy by 25% and reducing cold-start sync time from 8s to 3s—enhancing core user experience for 10M+ monthly users.

ClassTune

The easiest and quickest way for Students, Parents & Teachers to connect with each other. School Administrators can connect with each individual under one single platform. ClassTune makes institutional monitoring and management of school activity easy and effective. Students, Parents, Teachers and School Admin can bridge with each other and progress together.

Lotto24

Lotto24 is Germany’s leading online lottery platform, allowing users to securely play official lotteries like LOTTO 6aus49, EuroJackpot, GlücksSpirale, and more directly from their iOS devices. The app offers features such as custom ticket creation, syndicates, push notifications for draws, secure payments, and real-time results — all with TÜV-certified data protection and seamless usability.

Education

  • The University of Texas at Arlington

    Master's degree in Advanced Computer science

    2014-01-01-2016-01-01

  • Bangladesh University of Engineering & Technology

    Bachelor's degree in Computer Science & Engineering

    2006-01-01-2011-01-01

Languages

  • English

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