Alexander Gedevanishvili, Developer in Madrid, Spain
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Alexander Gedevanishvili

Bio

Alexander is a senior mobile and full-stack engineer with 20+ years of experience building high-quality products for international clients. He has led complex projects for startups and global platforms used by millions, taking ownership of architecture, performance, reliability, and delivery. Over the last decade, he has worked remotely with lots of international teams, helping them scale, modernize, and ship robust, production-ready solutions with a strong focus on quality and maintainability.

Portfolio

Toptal Clients
Android, iOS, React Native, Flutter, Swift, Kotlin, Objective-C, Java...
Olmait
React Native, Python, Google Cloud, Amazon Web Services (AWS), Django, FastAPI...
Product Savvy Consulting
React Native, Java, Objective-C, iOS, Android, Code Review, Source Code Review...

Experience

  • JavaScript - 18 years
  • PHP - 14 years
  • Android - 11 years
  • iOS - 10 years
  • Objective-C - 10 years
  • Java - 8 years
  • Swift - 8 years
  • React Native - 7 years

Preferred Environment

Git, Cursor AI, Codex, Claude Code

The most amazing...

...thing I've developed is the implementation of an encryption algorithm using elliptic curve cryptography (ECC).

Work Experience

Senior Software Engineer

2016 - PRESENT
Toptal Clients
  • Developed and maintained 20+ production mobile, web, and back-end systems, delivering full-stack features using React, React Native, Node.js, and REST APIs for global products used by hundreds of thousands of users.
  • Collaborated with 20+ clients across distributed teams of varying sizes, delivering production-ready solutions in fast-paced, remote environments.
  • Led development of iOS and Android applications, leveraging native and cross-platform stacks to design scalable, maintainable mobile architectures for long-lived products.
  • Developed and shipped web and back-end systems using modern JavaScript frameworks and Node.js, designing scalable APIs and production-ready services.
Technologies: Android, iOS, React Native, Flutter, Swift, Kotlin, Objective-C, Java, JavaScript, TypeScript, Dart, Source Code Review, App Store, Google Play Store, Expo.io, CI/CD Pipelines, Agile Software Development, GitHub, Android SDK, Scrum, SQLite, MongoDB, Object-oriented Programming (OOP), Bitbucket, Task Analysis, Back-end, Google Cloud, APIs, Google Cloud Platform (GCP), Artificial Intelligence (AI), Software Development, Xcode, Android Studio, Mobile Development, Cross-platform, GraphQL, React Navigation, API Integration, WebSockets, Real-time Streaming, Dependency Injection, Coroutines, Jetpack Compose, Ktor, Retrofit, Expo, Front-end Development, Mobile App Development, Firebase Authentication, RevenueCat, Amazon Web Services (AWS), AI Automation, PostgreSQL, React Testing Library, Firebase Cloud Functions, Minimum Viable Product (MVP), Workflows, B2B, Full-stack Development, User Experience (UX), Real-time Data, Automation, REST APIs, Front-end, Automated Testing, Software Design, Software Architecture, Scalability, Code Auditing, AI Tools, Startups, Vibe Coding, Large Language Models (LLMs), Stripe, SQL, Android Development, Application Architecture, Model View ViewModel (MVVM), iOS App Development, JSON, React Query, Mobile Apps, UIKit, Blockchain, Cloud, Computer Science, AI-assisted Development, Figma, Push Notifications, GPS, Anthropic, Claude, Google Maps, App Development, Firebase Cloud Messaging (FCM), Authentication, Docker, Location Services, OAuth, Web Development, Lovable, QR Codes

Full-stack Engineer

2022 - 2023
Olmait
  • Built and maintained a cross-platform React Native app (iOS and Android) using GraphQL for efficient data fetching; delivered features, fixed bugs, and improved app stability in production.
  • Developed scalable Python back-end services, including API endpoints and background jobs for async processing; improved reliability and reduced response times for key workflows.
  • Set up and managed cloud infrastructure on Google Cloud and AWS, including deployments, environment configuration, and monitoring; ensured scalable and reliable system performance.
Technologies: React Native, Python, Google Cloud, Amazon Web Services (AWS), Django, FastAPI, Minimum Viable Product (MVP), Workflows, Healthcare IT, B2B, Full-stack Development, User Experience (UX), REST APIs, Application Architecture, JSON, Mobile Apps, Cloud, AI-assisted Development, Push Notifications, App Development, Authentication, Docker, OAuth, Web Development

Client-side Team Lead

2016 - 2018
Product Savvy Consulting
  • Developed and shipped applications across Android, iOS, and web platforms.
  • Delivered applications across the entire lifecycle, from development to testing and deployment.
  • Collaborated with the UX designer to create a compelling user interface.
  • Coordinated with team members on application design.
  • Taking a lead role in front-end architecture, technical decisions, and delivery.
  • Carried out design and code reviews with the team.
Technologies: React Native, Java, Objective-C, iOS, Android, Code Review, Source Code Review, Interviewing, Technical Hiring, App Store, Google Play Store, CI/CD Pipelines, Agile Software Development, GitHub, Android SDK, Scrum, SQLite, MongoDB, Object-oriented Programming (OOP), Task Analysis, APIs, Software Development, Xcode, Android Studio, React, Mobile Development, Cross-platform, React Navigation, API Integration, WebSockets, Dependency Injection, Retrofit, Front-end Development, Mobile App Development, Amazon Web Services (AWS), Mapbox, Minimum Viable Product (MVP), Healthcare IT, Healthtech, User Experience (UX), Automation, REST APIs, Front-end, Automated Testing, Software Design, Software Architecture, Startups, SQL, Android Development, Application Architecture, Model View ViewModel (MVVM), iOS App Development, JSON, Offline Data Synchronization, Supabase, Mobile Apps, UIKit, Cloud, Push Notifications, GPS, Google Maps, App Development, Firebase Cloud Messaging (FCM), Authentication, Location Services, OAuth, Web Development

Software Developer

2016 - 2017
OECD
  • Built and maintained a large-scale survey platform used by international organizations, working across front-end, back-end, and data pipelines to ensure reliability, scalability, and secure data collection.
  • Developed and extended a custom content management system (CMS) enabling non-technical teams to manage surveys, questionnaires, and publications, improving editorial workflows and reducing operational overhead.
  • Designed and implemented a reporting and analytics platform that transformed raw survey data into actionable insights through dashboards, exports, and automated reporting pipelines for stakeholders.
Technologies: Doctrine, Symfony, PHP, GitHub, Laravel, Object-oriented Programming (OOP), Task Analysis, Back-end, APIs, Software Development, API Integration, Front-end Development, Full-stack Development, REST APIs, Front-end, Software Design, SQL, Application Architecture, Authentication, OAuth, Web Development

Android Developer

2015 - 2015
Mobility, Ltd.
  • Developed a mobile banking application for one of the largest banks in Georgia.
  • Delivered applications across the entire lifecycle, from development to testing and deployment.
  • Worked with the UX designer to create a compelling user interface.
  • Interacted directly with clients to understand their requirements and implement them in the application.
  • Published applications on Google Play and Apple App Store.
Technologies: Google API, Java, Android SDK, App Store, Google Play Store, GitHub, SQLite, Object-oriented Programming (OOP), APIs, Software Development, Xcode, Android Studio, Mobile Development, API Integration, WebSockets, Front-end Development, Mobile App Development, User Experience (UX), REST APIs, Android Development, Mobile Apps, Push Notifications, Google Maps, App Development

Senior Software Developer

2010 - 2015
Silknet JSC
  • Developed the company's ERP system, which contained over thirty modules.
  • Worked on the software's architecture and design. Created RESTful APIs and SOAP web services.
  • Integrated the ERP system with the company's billing software.
  • Integrated the ERP system with a revenue service API.
  • Developed mobile applications for some modules of the ERP software.
Technologies: REST, SOAP, Ext JS, PHP, PL/SQL, Oracle, Code Review, Source Code Review, Interviewing, Oracle PL/SQL, Object-oriented Programming (OOP), Subversion (SVN), Back-end, APIs, Software Development, API Integration

Web Developer

2008 - 2010
Neomedia, Ltd.
  • Built about thirty websites for different companies.
  • Developed software for microfinance organizations.
  • Created a content management system that is still used today.
  • Implemented an eCommerce system with online payments.
  • Optimized website user experience for mobile devices.
Technologies: Adobe Flash, SOAP, MySQL, PHP, Ajax, JavaScript, CSS, HTML, Object-oriented Programming (OOP), Symphony, Software Development, Front-end

Website Developer

2007 - 2008
Happy, Ltd.
  • Created a content management system for the websites that were owned by the company.
  • Built a website for a real estate company with the content management tool.
  • Developed a website and an administrative tool for an HR company.
  • Managed, trained, and collaborated with the company's interns.
Technologies: CSS, HTML, Adobe Flash, Ajax, JavaScript, MySQL, PHP, Object-oriented Programming (OOP), Software Development

Web and Software Developer

2005 - 2007
Association “Poseidon”
  • Developed dynamic websites and software for different clients.
  • Translated programming courses into the Georgian language.
  • Worked as a programming and software development coach for students.
Technologies: C++Builder, C++, C, Adobe Flash, MySQL, PHP, JavaScript, CSS, HTML, Software Development

Experience

Classdojo - Global EdTech Platform (Teachers, Parents & Students)

https://www.classdojo.com
I acted as a primary mobile engineer on the ClassDojo mobile applications, delivering core product features, architectural improvements, and performance optimizations for a large-scale consumer application used by tens of millions of users. I also contributed to web and back-end services.

Dugri: Peer Support Network

https://apps.apple.com/us/app/dugri-peer-support-network/id1524345770
Dugri is a peer support network. The app was developed using a cross-platform tool and is built for iOS and Android. It contains a live chat that uses Firebase technology. The live audio call is also implemented in the application.

Platform for Innovations in Statistics

PISTA is an online platform that collects information on innovations and statistical capacity in official statistics and systematically matches identified challenges to potential solutions.

The platform is created using the PHP Symphony framework.

The Mark Manson App

An Android app of the American self-help author and blogger Mark Manson where you can get access to his work. It is a native Android app written in Kotlin, using Android Clean Architecture. Google's in-app subscription is integrated into the app.

ERP System

An ERP system for a large telecommunication company that included over 30 modules. Thousands of users worked with the system daily.

It uses Oracle Database on the back end and integrates with many third-party APIs.

Cat Tailer

https://cattailer.com
Cat Tailer is an innovative pet tracking device designed specifically for cats. It uses Bluetooth Low Energy technology to assist you in finding your pet within your yard or neighborhood.

I worked on mobile applications that connected Cat Tailer devices with iOS and Android phones.

WolfPack

This Android and iOS mobile application helps bikers ride in groups by providing turn-by-turn navigation and real-time communication tailored for group rides. The platform offers a wide range of features and is useful for other drivers and travelers as well. I contributed to both the mobile applications and the web portal, working on core features and overall system integration.

Walem

An application for food orders and delivery, built using Kotlin and Android Clean Architecture.

I worked on three applications that were connected to each via a server-side API and push notification service.

TableBid

I worked on exclusive real-time access to the hottest venues and lowest minimums, a mobile application that helps users bid and book tables in different bars, clubs, restaurants, and more.

I developed the mobile side of the project and the server side.

iVerified

The ultimate free, simple, safe, and reusable identity and age verification app for Android and iOS.

The application uses machine learning to scan information from various types of documents and also age detection by a live camera.

Know Stone

https://apps.apple.com/tt/app/stone-pass-kidney-stones/id1491822657
A mobile application created with React Native. It is a community education effort to help people have better discussions with their healthcare providers by sharing the decisions made by others with similar kidney stone conditions.

Mobile Banking Application

https://play.google.com/store/apps/details?id=ge.mobility.basisbank
A mobile banking application for iOS and Android that provided remote services for the bank and helped users carry out a variety of banking operations. It uses different authentication methods to secure personal user data.
Image of Android and iOS UI Testing with Calabash publication
Publication

Android and iOS UI Testing with Calabash

https://www.toptal.com/developers/app/android-ios-ui-testing-calabash

Education

2003 - 2010

Master's Degree in Computer Science

Ivane Javakhishvili Tbilisi State University - Tbilisi, Georgia

Certifications

MAY 2018 - PRESENT

React Native

Toptal Academy

Skills

Libraries/APIs

React, React Navigation, Retrofit, React Testing Library, REST APIs, React Query, Google Maps, Node.js, Facebook API, Google API, Stripe, Doctrine, Google Maps API, TensorFlow, Instagram API, X (formerly Twitter) API, LinkedIn API

Tools

Android Studio, Xcode, Git, Bitbucket, GitHub, Expo.io, WebView, Expo, Firebase Authentication, Codex, Claude Code, Figma, Firebase Cloud Messaging (FCM), Subversion (SVN), Claude, Adobe Flash, C++Builder, Amazon Simple Notification Service (SNS), Android NDK

Languages

CSS, Kotlin, Objective-C, Swift, JavaScript, Java, PHP, TypeScript, SQL, HTML, GraphQL, Python, C, C++, Dart

Frameworks

React Native, Android SDK, Flutter, Redux, UIKit, Laravel, Ext JS, Next.js, Express.js, Jest, Ktor, Symfony, KOIN, Core Bluetooth, Django

Paradigms

Object-oriented Programming (OOP), Agile Software Development, Scrum, Mobile Development, Cross-platform, Dependency Injection, B2B, Automation, Automated Testing, Application Architecture, Model View ViewModel (MVVM), App Development, Gamification, REST, Clean Architecture

Platforms

Firebase, iOS, Oracle, Android, Google Cloud Platform (GCP), RevenueCat, Docker, Amazon Web Services (AWS), Mapbox, Blockchain, Bluetooth Low Energy (LE)

Storage

MySQL, Oracle PL/SQL, PostgreSQL, JSON, SQLite, MongoDB, Google Cloud, PL/SQL

Other

Software Development, Code Review, Source Code Review, Interviewing, Technical Hiring, Task Analysis, Back-end, App Store, Google Play Store, APIs, Information Technology, Programming, Artificial Intelligence (AI), Performance, Native Mobile Apps, Full-stack, API Integration, WebSockets, Coroutines, Front-end Development, Mobile App Development, Firebase Cloud Functions, Minimum Viable Product (MVP), Healthcare IT, Full-stack Development, User Experience (UX), Real-time Data, Front-end, Software Design, Software Architecture, Scalability, Code Auditing, AI Tools, Startups, Vibe Coding, Android Development, iOS App Development, Offline Data Synchronization, Mobile Apps, Cloud, Computer Science, AI-assisted Development, Push Notifications, GPS, Anthropic, Authentication, Location Services, OAuth, Web Development, QR Codes, Objective-C++, CI/CD Pipelines, GitHub Actions, Real-time Streaming, Jetpack Compose, AI Automation, Workflows, Healthtech, Large Language Models (LLMs), Design, Supabase, Lovable, Ajax, SOAP, Bluetooth Beacons, Symphony, Machine Learning, Cursor AI, FastAPI

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