Giorgi is available for hire
Hire GiorgiGiorgi Lagidze
Verified Expert in Engineering
PHP Developer
Tbilisi, Georgia
Toptal member since April 9, 2019
Bio
Giorgi is a smart contract engineer with 7 years in blockchain and 8+ years in software development. He builds production Solidity across DeFi, governance, and cross-chain systems, with contracts he has worked on governing around $35 billion in assets. His work spans protocol architecture, security, tokenomics, and incentive design, including a strategy submitted to CoW DAO. He also specializes in deep on-chain research, analyzing deployed contracts, permission systems, and protocol mechanics.
Portfolio
Aragon
Solidity, Solidity Assembly, React, Ethers.js, IPFS
Freelance
Ethereum, Solidity, JavaScript, React, Rust
Nestle (via Toptal)
Vuex, Vue, Amazon Web Services (AWS), Phaser.io, Azure, Webpack, IndexedDB...
Experience
- PHP - 8 years
- JavaScript - 7 years
- Laravel - 5 years
- Blockchain - 4 years
- Vue - 4 years
- Angular - 4 years
- Node.js - 3 years
- Solidity - 2 years
Work Experience
Solidity/React Developer
2021 - PRESENT
Aragon
- Built the core framework contracts enabling fast, low-cost DAO deployment, plus the plugin marketplace architecture allowing third-party developers to publish installable governance plugins. Implemented using UUPS proxy patterns with storage gaps.
- Developed time-weighted escrow with ERC-721 lock NFTs, linear voting power, checkpoint tracking, dynamic scaling curves, cooldown exits with fees, IVotes delegation, and gauge voting to direct liquidity-pool reward emissions.
- Created the OSx plugin for cross-chain DAO execution, where proposals forward actions through bridge adapters to remote controllers. Modular lanes support CCIP, LayerZero, or custom bridges, allowing bridge migration without changing the DAO's governance path.
- Conducted protocol and tokenomics analysis from deployed bytecode, tracing contracts function by function and mapping permission graphs, proxy admins, role hierarchies, and timelock gaps. https://otf.aragon.org/.
- Researched CoW DAO buyback design, sizing, cadence, unlocks, and emissions. Benchmarked 10 protocols via contracts, on-chain data, and Dune queries. Submitted to CoW DAO: forum.cow.fi/t/rfp-cow-value-distribution-mechanism/3328/16.
- Built a USDC yield vault routing capital from Arbitrum to Mamo, Zyfai, and YieldSeeker on Base via CCTP. Built agent strategy contracts and Merkle-based decoders that pin assets, recipients, and chains, restricting every strategist's action to whitelisted calls.
- Led development of a multi-stage governance system where proposals advance through configurable approval stages with customizable approval/veto thresholds, automatic sub-proposal creation on child governance bodies, and meta-transaction support.
- Managed the Katana governance development: built vKAT escrow, dynamic exit queue, gauge voting, Merkl rewards and bribes, permissionless reward swapping/compounding, and the avKAT ERC4626 vault with NFT merge/split mechanics and modular strategies.
- Trained in the YUL, assembly, gas-optimization, secure code analysis, IPFS, swarm, ethers.js, hardhat, and most importantly, foundry, alongside writing clean and important tests (including fuzzing).
Technologies: Solidity, Solidity Assembly, React, Ethers.js, IPFS
NFT Developer
2020 - PRESENT
Freelance
- Developed the NFT collection (Doge Army by ShibaDoge) with the smart contracts, revealing the metadata depending on time interval with the freezing options integrated with IPFS.
- Developed the NFT collection (Rave The Future) with the smart contracts, minting website, revealing metadata with public and pre-sale options even running simultaneously. Used the special smart contracts to reduce minting gas costs.
- Assisted in developing the NFT collection (We Are the OutKast) with the smart contracts only.
- Helped to write Solana NFT collection with Candy Machine v2, which was challenging because of the roadmap.
Technologies: Ethereum, Solidity, JavaScript, React, Rust
PWA/Vue.js Developer
2020 - PRESENT
Nestle (via Toptal)
- Coordinated with offline support, background sync, and push notifications. Used workbox's latest release to implement the above-mentioned features for cleaner and maintainable code. Also supported workbox's open-source project.
- Worked with Webpack 4, SplitChunksPlugin for advanced optimization, and wrote custom plugins.
- Worked with Kidaptive's Adaptive Learning Platform team (AI-based algorithms that empower educational companies to use the data they collect to increase learner engagement and improve outcomes) and integrated it into our platform.
- Wrote custom components, plugins. Integrated Vue's advanced features to maintain testable, efficient-ready code for better maintenance.
- Integrated Azure's CI/CD tool, Data Factory(triggers - that copy data from AWS buckets to Azure Storage buckets), CDN profiles, and more.
- Fixed and maintained other developers' code (three games for children for learning purposes) written in Phaser 3.
- Worked with different advanced features of browser API (visibility API, IntersectionObserver, FullScreenAPI, and many more).
- Implemented IndexedDB, LocalStorage, SessionStorage, and Cache API for different caching purposes.
Technologies: Vuex, Vue, Amazon Web Services (AWS), Phaser.io, Azure, Webpack, IndexedDB, Workbox, Service Workers
Senior Full-stack Developer
2019 - 2019
TrendStore (via Toptal)
- Wrote a car assessment software for the quicker management between the buyer and seller.
- Integrated Paypal smart payments, its webhooks, and OmniPay package for a quick addition of different gateways.
- Worked with Okta to implement social authentication via Facebook/Google.
Technologies: Vue, Laravel
Senior Front-end Developer
2019 - 2019
Evolve (via Toptal)
- Helped to write pest control software.
- Worked with Leaflet/Mapbox, integrated drawing tools (circle, rectangle, polygon), and implemented duration/direction based routing with real-time traffic.
- Optimized map speed for 15,000 markers by using WebGL renderer Pixi.js which made it super fast.
- Wrote custom components instead of using material (Vuetify).
- Completely understood how Vue.js works internally behind the hood to make the application faster.
Technologies: Vuetify, Pixl.js, WebGL, Mapbox, Leaflet, Vue
Senior Full-stack Developer
2019 - 2019
Propera (via Toptal)
- Reviewed and made the proper changes to other people's codes.
- Ensured algorithms were the correct ones to run Facebook advertising system effectively.
- Refactored the codebase which seemed to be written with bad practices.
Technologies: Laravel, Angular
Senior Blockchain Developer
2018 - 2019
Birtvi
- Helped research the best practice solutions to integrate them into software.
- Helped build one of the most amazing exchange platforms like Binance. For Ethereum, It was still needed to implement a solidity contract solution.
- Built a mining pool like antpool.com for our own country with lower fees.
- Became proficient in different consesus algorithms, writing smart contracts in solidity, researching and implementing new supply chain domain models, e.t.c.
- Learned one of the world's most difficult technology - Hyperledger Fabric.
- Served as the team lead to design the supply chain solution better than the already existing ones.
- Wrote a Front-end/Back-End application by using Vue/Node/C# and interact with contracts with Web3.
Technologies: Web3.js, Solidity, React, Angular, Vue, Node.js, PHP
Senior Full-stack Developer
2016 - 2019
Bene Exclusive
- Created a smart digital transportation management system for all carriers and shippers.
- Implemented a background location-tracking and geofencing module with battery-conscious motion-detection intelligence for iOS and Android.
- Made the best analysis and code strategies to use Google Maps API to integrate different services for clients to see their cargo on the way. Making polylines, drawing lines between different cities, showing nearest carriers' circles around the client's cargo's location, etc.
- Helped write Vue.js and Laravel Restful API code and reviewed other team members' code.
- Integrated an error-reporting tool to faster recognize the production errors.
- Integrated CI/CD tools(Jenkins) to automate the process.
- Integrated Ansible with Jenkins to ensure better code quality and more features.
- Served as the team lead to monitor the tasks in an Agile way.
Technologies: Redis, MongoDB, MySQL, Cordova, Ionic, Laravel, Angular, Vue
Back-end Developer
2014 - 2016
Nordiccar
- Reviewed other people's code and gave notes.
- Optimized queries for more than 50 million rows of a database.
- Built a dynamic excel generation system for more than 10 million rows in a very efficient way.
- Read huge Excel files, gathered data, made analysis depending on different algorithms/formulas, and simplified customers' work on a daily basis.
Technologies: Redis, MySQL, Angular, Laravel, PHP
Project History
Translive
This is a smart digital transportation management system for all carriers and shippers, which makes logistics much more efficient and improves profitability. Our marketplace connects them using data to match freight with capacity, pairing the right load with the right carrier on the requested route and guarantees cost savings.
Translive Mobile App
Translive mobile version for Android. This app has an integrated tracking system. It uses accelerometer, gyroscope, and magnetometer to detect when the device is moving and stationary and also It's a battery-conscious motion-detection.
PriceMyCar (TrendStore)
Get access to a complete overview and history of your vehicle instantly. Upload images and claim the Car Sellers Kit... sell your car with confidence.
Coinetic
https://github.com/novaknole/Blockchain_Hyperledger/wikiI created an exchange platform like binance.com. Alongside the exchange platform, I designed a supply chain solution in the blockchain industry to give wine companies the chance to deliver the goods at first with the help of blockchain.
As an internal tool between/for companies, I also led the team to design a scalable solution by using Hyperledger Fabric. During the process, I got to talk to IBM's core developer for Fabric to learn more since the official documentation at that time lacked so many good explanations. In the end, I ended up writing my own version of the documentation for Hyperledger Fabric.
As an internal tool between/for companies, I also led the team to design a scalable solution by using Hyperledger Fabric. During the process, I got to talk to IBM's core developer for Fabric to learn more since the official documentation at that time lacked so many good explanations. In the end, I ended up writing my own version of the documentation for Hyperledger Fabric.
Bitforx
I designed and built a mining platform like antpool.com with the help of Node.js. The decision of building a new pool was made to reduce the fees that actual mining pools take before they pay to the actual miners (solvers of the block in proof of work).
Dublin Airport
Co-creator of this excellent and reliable pre-booked service both to and from Dublin Airport.
Move With Luxury
Words say and prove themselves. Quote from the website - "Bene Exclusive is a provider of professional luxury transportation services. We transport our clients in comfort and style, on a level that exceeds all of their traveling expectations. Every client we transport, whether for business, airport, tours, special events or just an evening out, receives our concentrated individual attention to details, you can simply relax and enjoy the ride."
My First Game on Pixi.js (WebGL and Hardware Acceleration Needed)
As this is my first time writing something all alone through WebGL API, I didn't consider writing it cleaner or more precisely. The main idea was to give me a little nudge to dive into how WebGL works and how helpful it could be to write the fastest applications.
Education
2014 - 2018
Bachelor's Degree in Computer Science and Mathematics with a minor in Computer Engineering
Free University OF Tbilisi - Tbilisi, Georgia
Certifications
MAY 2019 - PRESENT
Jenkins From Zero To Hero
Udemy
OCTOBER 2018 - PRESENT
Blockchain Hackathon Winner
Official NEO Blockchain Association
Skills
Libraries/APIs
Vue, jQuery, Web3.js, Node.js, React, RxJS, Leaflet, Vuex, WebGL
Tools
Webpack 4, Git, NGINX, Jenkins, Ansible, GitHub, PhpStorm, Workbox, Webpack
Languages
PHP, JavaScript, HTML5, CSS, SQL, Bash, Solidity, Ruby, Solidity Assembly, Rust
Frameworks
Laravel, Ionic 4, Express.js, Angular, Nuxt.js, PixiJS, Ionic, Phaser.io, Vuetify
Platforms
Blockchain, Azure, Amazon Web Services (AWS), Docker, Apache2, Linux, Kali Linux, MacOS, Hyperledger, Mapbox, Hyperledger Fabric, Ethereum, Visual Studio Code (VS Code)
Paradigms
Object-oriented Programming (OOP), Design Patterns, Agile
Storage
IndexedDB, MySQL, MongoDB, Redis
Other
Progressive Web Applications (PWAs), Service Workers, Laravel Forge, Cordova, Pixl.js, Supply Chain, Mining, Mining Pools, Computer Science, Ethers.js, IPFS
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