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$60 USD / giờ
Cờ của UNITED STATES
$60 USD / giờ
Hiện ở đây là 7:09 SA
Đã tham gia vào ngày tháng 7 12, 2022
0 Khuyến nghị

Christopher G.

@Simplicitistudio

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$60 USD / giờ
Cờ của UNITED STATES
$60 USD / giờ
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Senior Blockchain & Full-Stack Engineer

I am a senior software engineer who has rich experience in blockchain and web & mobile development as a full-stack engineer for 8+ years. I have developed Hybrid (Ce-FI & De-FI) Exchange and Trading (Margin & Futures) Platform from scratch as a project manager and upgraded ongoing Exchange platform with new features of Blockchain technology and AI based solution for client portfolio management and balance risk management of platform before. I have also developed Lending Platform Dapp, Insurance Dapp and Yield Farming Staking Dapp from scratch as a lead developer and solved several security problem using Openzepplin logic and several solution(Proxy, Storage, etc) and also optimize the contract using off-chain integration using Oracle. I have also developed Data yield farming Dapp from scratch as a lead developer based on Solana network using Rust and developed NFTs market place on Solana network also using Rust Substrate.
Freelancer PHP Developers United States

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Mục portfolio

Tech-stack: Web (React.js / Typescript + Smart Contracts / Rust / Solana)

What I do:
   As a lead developer, I developed NFT marketplace smart contract using Rust on Solana network especially focusing on code & storage optimizing especially using Solana Anchor.
   And I developed frontend using React.js / Typescript and integrate phantom wallet for Solana network integration and Solana Smart contract using Rust and Web3.
Blockchain Solana NFT Marketplace
Liquidity protocol that provides lending, borrowing function with liquidity provide using NFT and Oracl

Github: https://github.com/christophergroe/LiquidityPlatform
Tech-stack: Web (React.js / Redux-Saga + Web3.js + Smart Contracts / Solidity / Hardhat)
What I do: 
   As a lead developer, I designed the Roci FI lending platform architecture and smart contract architecture from scratch focused on security and optimization.
   I suggested to use Proxy and Storage logic for smart contract security improvement and integrated openzepplin to smart contract for security logic myself.
   I also took part in smart contract development with contract developers for lending platform contract and developed NFT based User wallet score generate off-chain application using Oracle myself and integrate this into lending platform.
Lending Platform
Decentralized Exchange Platform where companies registered in the Caribbean can list ERC-20 tokens.

Web: https://calahex.com

Tech-stack: Web-CeFI (React.js / Redux-Thunk + Laravel), Web-DeFI (React.js + Web3.js + Smart Contracts)

What I do:
   As a lead developer, I have designed architecture & DB & UI/UX from scratch with my last experience above myself.

   I have also suggested and implemented AI based financial solutions to avoid risk from high-changing price of cryptocurrency pairs.

   And I have developed smart contracts for ERC-20 tokens exchange and management.

   I recommended my team members (talented & well-experienced developers) on this project and lead them as a PM to archive completion of CALAHEX v1.0
Caribbean and Latin America Hybrid Cryptocurrency Exchange
Web: https://dermoi.com
Mobile(iPhone): https://apps.apple.com/us/app/dermoi-therapist/id1400669843

Tech-stack: Web (React.js / Next.js + Django + Python / Tensorflow), Mobile (React Native)

What I do:

   As a full-stack developer, I have developed face feature detection engine using Python Tensorflow integrate into platform so let clients can detect their face features automatically from their image and order with correct treatment and mark-up plan.

   And I upgraded ongoing platform UI into React.js / Next.js from normal bootstrap theme based UI.
Face detection based Make-up & Treatment Platform
Web: https://dermoi.com
Mobile(iPhone): https://apps.apple.com/us/app/dermoi-therapist/id1400669843

Tech-stack: Web (React.js / Next.js + Django + Python / Tensorflow), Mobile (React Native)

What I do:

   As a full-stack developer, I have developed face feature detection engine using Python Tensorflow integrate into platform so let clients can detect their face features automatically from their image and order with correct treatment and mark-up plan.

   And I upgraded ongoing platform UI into React.js / Next.js from normal bootstrap theme based UI.
Face detection based Make-up & Treatment Platform
Web: https://dermoi.com
Mobile(iPhone): https://apps.apple.com/us/app/dermoi-therapist/id1400669843

Tech-stack: Web (React.js / Next.js + Django + Python / Tensorflow), Mobile (React Native)

What I do:

   As a full-stack developer, I have developed face feature detection engine using Python Tensorflow integrate into platform so let clients can detect their face features automatically from their image and order with correct treatment and mark-up plan.

   And I upgraded ongoing platform UI into React.js / Next.js from normal bootstrap theme based UI.
Face detection based Make-up & Treatment Platform
Web: https://dermoi.com
Mobile(iPhone): https://apps.apple.com/us/app/dermoi-therapist/id1400669843

Tech-stack: Web (React.js / Next.js + Django + Python / Tensorflow), Mobile (React Native)

What I do:

   As a full-stack developer, I have developed face feature detection engine using Python Tensorflow integrate into platform so let clients can detect their face features automatically from their image and order with correct treatment and mark-up plan.

   And I upgraded ongoing platform UI into React.js / Next.js from normal bootstrap theme based UI.
Face detection based Make-up & Treatment Platform
Web: https://dermoi.com
Mobile(iPhone): https://apps.apple.com/us/app/dermoi-therapist/id1400669843

Tech-stack: Web (React.js / Next.js + Django + Python / Tensorflow), Mobile (React Native)

What I do:

   As a full-stack developer, I have developed face feature detection engine using Python Tensorflow integrate into platform so let clients can detect their face features automatically from their image and order with correct treatment and mark-up plan.

   And I upgraded ongoing platform UI into React.js / Next.js from normal bootstrap theme based UI.
Face detection based Make-up & Treatment Platform
Control and track white & black listed person and people's feature, vehicle detect with LPR, Type, Speed
Web: https://www.controltrack.com.mx/

Github: https://github.com/christophergroe/Detect_Vehicle_type_and_counting_with_livecam_Python

Tech-stack: React.js / Redux + Laravel + Python / Tensorflow - Yolo 

What I do:

    As a full-stack developer, I developed python engine to detect the vehicles from live camera as live streaming and counting, detecting type, calculating speed, sumarizing script and integrated this into Laravel based backend server.
    And upgraded the normal HTML/JS/CSS based website into React.js based frontend and speed up, optimized the website.
Vehicle Detection Platform
Control and track white & black listed person and people's feature, vehicle detect with LPR, Type, Speed
Web: https://www.controltrack.com.mx/

Github: https://github.com/christophergroe/Detect_Vehicle_type_and_counting_with_livecam_Python

Tech-stack: React.js / Redux + Laravel + Python / Tensorflow - Yolo 

What I do:

    As a full-stack developer, I developed python engine to detect the vehicles from live camera as live streaming and counting, detecting type, calculating speed, sumarizing script and integrated this into Laravel based backend server.
    And upgraded the normal HTML/JS/CSS based website into React.js based frontend and speed up, optimized the website.
Vehicle Detection Platform
Web: https://designhubz.com
Tech-stack: Web (Wordpress + Three.js + Unity)

What I do:

   As a full-stack developer, I developed VR based UI for each 3D products using Three.js with the function - zoom, move, rotates and make able to change 3D product color not only entire product but also partial color as clients want.

   And also developed Unity engine for AR based 3D product management.
AR & 3D model product based eCommerce store
Web: https://designhubz.com
Tech-stack: Web (Wordpress + Three.js + Unity)

What I do:

   As a full-stack developer, I developed VR based UI for each 3D products using Three.js with the function - zoom, move, rotates and make able to change 3D product color not only entire product but also partial color as clients want.

   And also developed Unity engine for AR based 3D product management.
AR & 3D model product based eCommerce store
Web: https://designhubz.com
Tech-stack: Web (Wordpress + Three.js + Unity)

What I do:

   As a full-stack developer, I developed VR based UI for each 3D products using Three.js with the function - zoom, move, rotates and make able to change 3D product color not only entire product but also partial color as clients want.

   And also developed Unity engine for AR based 3D product management.
AR & 3D model product based eCommerce store

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Kinh nghiệm

Lead developer

Synesis One
thg 10 2021 - thg 4 2022 (6 tháng, 1 ngày)
Blockchain Data yield farming & staking platform Tech-stack: Web (React.js / Typescript + Smart Contracts / Rust / Solana)What I do: As a lead developer, I developed data yield farming smart contract using Rust on Solana network especially focusing on code & storage optimizing. And also developed NFTs marketplace smart contract using Rust substrate. And I developed frontend using React.js / Typescript and integrate phantom wallet for Solana network integration.

Full-stack developer and PM

Solstice
thg 5 2020 - thg 9 2021 (1 năm, 4 tháng)
Social digital product marketing platform using NFT and stripe payment integration and social distribution Web(Product): https://www.solsapp.com Tech-stack: Web (React.js + Firebase + Node.js + IPFS + NFT) What I do: As a full-stack developer, I developed the NFT marketplace logic for digital product marketing using ERC1155 and Firebase for backend development using firestore.

Full-stack developer

Maxos
thg 9 2018 - thg 4 2020 (1 năm, 7 tháng)
Accelerating investor engagement yield farming DApp Web: https://maxos.studio Github: https://github.com/christophergroe/LaunchPoolTrackerPlatform Tech-stack: Web (React.js / Redux-Saga + Web3.js + Smart Contracts / Solidity / Hardhat)

Học vấn

Bachelor's degree

State University of New York Empire State College, United States 2005 - 2009
(4 năm)

Liên hệ Christopher G. về công việc của bạn

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