George B.

George B.

Fullstack Developer

Top performer 8.6/10
Georgia
Trusted member since 2021
13 years of experience

One of his most notable accomplishments was building UniPAY, an eCommerce wallet like PayPal, for the Georgian market. He also led the development of a transformative mobile fitness application from scratch to finish by leading the application development process.

Main expertise

React NativeReact Native9 years
React.jsReact.js9 years
JavaScriptJavaScript9 years
PHPPHP3 years
13+

Experience15

CTO / Lead Fullstack Developer

(Unloop Prev Sidekick)
Healthcare
Oct 2025 · 5m

As CTO, I am leading the design and execution of Sidekick’s secure, scalable digital health platform. I defined the technology stack (Python/FastAPI, Node.js, React Native) and deployed on AWS with integrations to Health API, Whoop, and Apple Health.

As a Lead Full-Stack Developer, I integrated a custom open-source model on Amazon Bedrock, fine-tuned for our specific domain and enhanced with custom tools tailored to user interactions within the app. Based on users’ daily journaling, the agent analyzes key insights and their overall history to deliver personalized, fine-tuned daily challenges designed specifically for each user.

React.jsReact.js
PostgreSQLPostgreSQL
Node.jsNode.js
React NativeReact Native
AWS LambdaAWS Lambda
2+

Senior Fullstack Engineer

SemanticEdge (via Proxify)
Entertainment and Media
Jun 2024 - Dec 2025 · 1y 6m

As a Senior Fullstack Engineer at SemanticEdge, I led the development of scalable applications, focusing on delivering high-quality user experiences. I worked closely with cross-functional teams, utilizing Frontend and Backend to build and optimize web and mobile applications for both iOS and Android platforms. I was responsible for implementing new features, maintaining existing codebases, and ensuring seamless integration of third-party services such as push notifications, authentication, and payment systems. Additionally, I contributed to improving app performance, managing releases, and overseeing the adoption of new technologies and best practices to ensure efficient and maintainable code.

React.jsReact.js
MongoDBMongoDB
PostgreSQLPostgreSQL
Node.jsNode.js
React NativeReact Native
6+

Senior Fullstack Developer

NDA (E-Commerce, via Proxify)
E-commerce
Apr 2024 - Aug 2024 · 4m
  • George focused on crafting robust, cross-platform mobile apps using React Native. He maintained high code quality for seamless user experiences on iOS and Android platforms.
  • Collaborated closely with designers to translate UI/UX into functional mobile interfaces.
  • Worked with back-end developers to integrate front-end components efficiently.
  • Drove the implementation of new features and enhancements, optimizing performance and addressing user feedback meticulously to enhance our app's functionality and user satisfaction.
  • The team gave excellent feedback about George. They had to stop earlier than expected due to financial reasons.
React.jsReact.js
Node.jsNode.js
React NativeReact Native
PythonPython
AndroidAndroid
4+

Technical Lead

ClearStar Inc/Clearstar Labs AG (via Proxify)
Oct 2022 - Feb 2024 · 1y 4m
  • Contributed to creating an application that gathered valuable data from blockchain smart contracts, tailored for traders and investors, and elegantly presented this information across multiple platforms.
  • Managed a team of highly capable front-end developers specializing in React and React Native as a tech lead to successfully execute our development objectives.
  • Took an active role in writing code and developing critical components to enhance the scalability and performance of the application, in addition to my leadership responsibilities.

Front-end Technical Lead

ClearStar Inc/Clearstar Labs AG (via Proxify)
HR and Recruitment
Oct 2022 - Feb 2024 · 1y 4m

Contributed to creating an application that gathers valuable data from blockchain smart contracts tailored for traders and investors, elegantly presenting this information across multiple platforms. Managed a team of highly capable front-end developers specializing in React and React Native as a tech lead to execute our development objectives successfully.

Took an active role in writing code and developing critical components to enhance the scalability and performance of our application, in addition to my leadership responsibilities.

JavaScriptJavaScript
React.jsReact.js
React NativeReact Native
GraphQLGraphQL
API
3+

Senior Fullstack Developer

Deployr AB (via Proxify)
Oct 2021 - Oct 2022 · 1y
  • Developed and maintained in-house tools to optimize and automate manual workflows.
  • Collaborated with cross-functional teams to design, develop, and deploy high-quality software solutions.
  • Ensured the scalability and reliability of applications through efficient coding practices.
  • Worked on the complete re-architecture of websites, developing the latest generation of sites.
  • Troubleshot and debugged, providing technical support and guidance to team members.
  • Continuously improved existing systems by researching and implementing new technologies and best practices.

Senior Fullstack Engineer

Deployr AB (via Proxify)
Marketing and Advertising
Oct 2021 - Oct 2022 · 1y

This is dynamic company specializing in developing scalable systems for affiliate marketing. Together with their sister company, they manage and operate over 800 websites across multiple niches.

  • Developed and maintained in-house tools to optimize and automate manual workflows.
  • Collaborated with cross-functional teams to design, develop, and deploy high-quality software solutions.
  • Ensured the scalability and reliability of applications through efficient coding practices.
  • Worked on the complete re-architecture of websites, developing the newest generation of sites.
  • Troubleshooting and debugging, providing technical support and guidance to team members.
  • Continuously improve existing systems by researching and implementing new technologies and best practices.
React.jsReact.js
PostgreSQLPostgreSQL
Node.jsNode.js
React NativeReact Native
GraphQLGraphQL
4+

Fullstack Engineer

Levenue B.V. (via Proxify)
Banking and Finance
Jun 2021 - Oct 2021 · 4m

Fast-growing European Fintech company. Their aim is to change the way SaaS companies finance themselves. Worked as a fullstack engineer in a cross-functional team. Big product and user focus. My purpose was to build a better and more efficient application, creating a better end-user experience. Their legal structure prevents them from keeping the same external team member for more than a few months.

React.jsReact.js
MongoDBMongoDB
PostgreSQLPostgreSQL
React NativeReact Native
GraphQLGraphQL
5+

Senior React / React Native / Web3 Engineer

Gamium Ltd.
Gaming
Feb 2019 - Feb 2021 · 2y
  • Developed decentralized applications (DApps) using React and React Native for Gamium's Blockchain Identity Platform.
  • Implemented a structured monorepo setup for both applications, enhancing code organization and enabling shared use of common libraries.
  • Established a robust state management system to ensure seamless application flow and efficient data handling.
  • Utilized the Wagmi library and WalletConnect to enable secure communication with the blockchain network.
  • Designed a user-friendly platform that allowed individuals to connect to the blockchain, input personal information, and establish a secure digital identity.
JavaScriptJavaScript
React.jsReact.js
React NativeReact Native
PreactPreact
HumanOS

Senior React / React Native Developer

HumanOS
Healthcare
Jul 2018 - Feb 2019 · 7m
  • Led the development of a transformative mobile application to revolutionize personal wellness journeys.

  • Orchestrated the creation of an intuitive platform tailored for the fitness industry from concept to realization, enabling users to effortlessly maintain their shape, track habits and goals, and seamlessly communicate with coaches for personalized recommendations

  • The application leveraged the power of React Native to deliver a seamless user experience across iOS and Android devices, ensuring accessibility for all fitness enthusiasts

  • By integrating cutting-edge features such as habit tracking, goal setting, and real-time chat functionality with coaches, the app empowered users to take charge of their fitness journeys

LaravelLaravel
JavaScriptJavaScript
React.jsReact.js
React NativeReact Native
AndroidAndroid
iOSiOS
TinLoof

Senior Full-stack Developer

TinLoof
Information Technology (IT) and Services
Apr 2017 - Jul 2018 · 1y 3m
  • Working with React, Next.js and Remix.run to create E-commerce, Fintech and social applications. Building high quality user interfaces focused on high performance to achieve 100% score on google speed tools.

  • Created PWA (Progressive web application) game using React, Remix.run, Match Cards is a game built to improve your memory with fun emoji cards. Provides fully native like experience on mobile.

  • Developed, Retailmediatools web platform that helps retailers easily generate advertising revenue using Next.js Auth0 and TypeScript. Embedded the team as their senior frontend force and started immediately making progress on the UI of the platform.

  • Worked on branding website for them tinloof.com. To create a schema and architecture of the framework with React, Next.js, Typescript, and Sanity as a Headless CMS, achieving a fully dynamic content management system and high-performance UI.

  • Published an article about "What is PWA?". This is an article about the benefits of the progressive web applications and how to easily win the mobile market with a low cost.

LaravelLaravel
React.jsReact.js
HTMLHTML
TypeScriptTypeScript
React NativeReact Native
2+

Senior React/React Native Developer

Freelance Engineer (Netguru, Toptal, StartupCraft)
Information Technology (IT) and Services
Jan 2016 - Feb 2020 · 4y 1m

Developed numerous mobile apps for clients using React Native, Typescript, GraphQL, Redux, React-Query. Some examples:

  • Developed OhanaLink Technologies, a mission to deliver solutions aimed at preserving privacy, intimacy, and availability for groups of close people such as family, friends, or communities.

  • Worked the on WorkAxle, one-stop solution against chaotic workplace where job is managed through schedules. Recently grown to 30k online users, transformed into the enterprise solution

  • React/Blockchain: Collaborated with skilled blockchain developers to create a groundbreaking Dapp enabling users to establish DAOs via a Metamask-linked web app, with features such as proposal creation, token allocation, naming, and a robust voting system.

JavaScriptJavaScript
React.jsReact.js
TypeScriptTypeScript
React NativeReact Native
GraphQLGraphQL
Redux.jsRedux.js

Senior React Native Developer

Blapp Inc
Information Technology (IT) and Services
Dec 2015 - Mar 2016 · 3m
  • Developed an app to find all kinds of black-owned businesses in neighborhoods for the USA market using React Native, Typescript, Firebase Auth, and Firebase cloud functions as BE service

  • Added more features to the application and made the application more social by adding new functionalities such as profile creation and onboarding flow ability to follow users.

  • Improved search for other people in the application with added some verification steps to add the user's location and make phone verification

  • Used the Twilio service for sending SMS functionality

  • Implemented live data using Firebase real-time systems with Firestore. Features like Weekly blappers, Most Blapped in the week, and some other live statistical data on the application dashboard to make it more dynamic

TypeScriptTypeScript
React NativeReact Native
FirebaseFirebase
Bridge

React Native Developer

Bridge
Education Technology (EdTech)
Feb 2015 - Nov 2015 · 9m
  • Built pixel-perfect, buttery smooth UIs across two mobile platforms.

  • Leveraged native APIs for deep integrations with both platforms. Diagnosed and fixed bugs and performance bottlenecks for performance that feels native.

  • Reached out to the open-source community to encourage and assist in implementing mission-critical software fixes.

UI
React NativeReact Native
API
JestJest
UniPAY

Full-stack Developer

UniPAY
Financial Technology (FinTech)
Jan 2014 - Apr 2018 · 4y 3m
  • Developed merchant payment gateway system for E-commerce website. It is a stripe-like solution but it is only for the Georgian market.

  • Also developed Service Payment Gateway, with Node.js main REST API and implemented around 50 local payment services as a sub-project

  • Develop the Georgian Railway online ticket market. This gives the ability people to buy Metro tickets online

  • Developed IOS and Android mobile applications using React Native and connected them to our service gateway. With this integration, giving people the ability to pay for different services and goods from the mobile application

  • Created a crypto wallet, as a SubProject of the UniPAY, to manage your crypto assets like BITCOIN, ETH, and DOGE and to sell, buy, and transfer crypto money quickly

PHPPHP
LaravelLaravel
Node.jsNode.js
React NativeReact Native
AndroidAndroid
iOSiOS

Assessments

Engineering excellence

George’s overall performance in a 90-minute live technical assessment ranks in the top 5% of vetted Fullstack Developers at Proxify.

Portfolio 8

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Education

TSU
Tbilisi State University, Georgia
Business and finance management2006 - 2010

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