Hello, I'm

Rensley

Full-Stack Blockchain Developer & Security Auditor

// the Vyper pilled dev

New York City

Rensley Ramos

About Me

Blockchain developer, security auditor, and builder of things.

I'm a Full-Stack Blockchain Developer and Smart Contract Security Auditor based in New York City. My journey started at the Columbia FinTech Bootcamp, where I built a foundation in Python, forecasting models, algorithmic trading, and smart contracts. Since then, I've built organizations, shipped products, and gone deep into DeFi, AI, and security.

I founded GitHat — an auth and hosting platform replacing Clerk + Vercel with micro front-ends and LLM-powered agents. I built NFTeria, a full DeFi + AI ecosystem with smart contract factories, Vyper contracts, ElizaOS agents, and ML-powered forecasting bots. I created ClickReserve for service-industry scheduling and SebasTN for AI applications.

I write smart contracts in Solidity, Vyper, and Clarity (Stacks), audit them with Foundry fuzzing and manual review, and build autonomous ML trading systems for GMX and ALPACA. I work with LangChain, ElizaOS, and RAG models to create AI agents that are both secure and useful. Looking ahead, I'm building toward Layer 2 solutions in Rust.

GitHub Activity

contributions in 2026 @doble196

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Skills

Technologies and tools I work with daily.

Languages

Python JavaScript TypeScript Solidity Vyper Clarity Rust SQL

Smart Contracts & DeFi

Foundry OpenZeppelin ERC-20/721/1155 DAOs Account Abstraction CCIP Cross-chain Stablecoins Merkle Airdrops zkSync Titanoboa Moccasin Forge Stacks / Clarinet DeFi Protocols

AI & Machine Learning

LangChain RAG ElizaOS Flowise TensorFlow Scikit-Learn Deep Learning AI Agents LLMs MCP

Frontend

React Next.js Vue HTML / CSS / SCSS Tailwind CSS DaisyUI Bootstrap Micro Front-Ends Gatsby Shopify Themes

Backend & Databases

Node.js Express Flask AWS Lambda PostgreSQL DynamoDB MongoDB Firestore Stripe

Cloud & DevOps

AWS GCP S3 CloudFront Serverless IPFS Docker CI/CD

Architecture

Microservices Micro Front-Ends SaaS Auth / OAuth JWT Cross-chain Protocols MetaMask Snaps

Organizations

Companies and platforms I've founded and built.

GitHat

SaaS Platform

Auth + hosting platform replacing Clerk + Vercel. Micro front-ends (React/Vue), micro backends (Lambda/DynamoDB), LLM agents (ChatHat, CodeHat), PDF processing, create-githat-app CLI, and blockchain integration.

React Vue Next.js Lambda DynamoDB LangChain

25+ repositories

NFTeria

DeFi + AI Ecosystem

Full DeFi + AI DApp ecosystem. Next.js frontend, Express/PostgreSQL backend, smart contract factory, ML forecasting bot, Flowise chatbot, Vyper & Clarity contracts, ElizaOS agents, Simli AI avatar, Stacks chain integration, and MetaMask Snaps.

Next.js Express PostgreSQL Vyper Clarity Solidity ElizaOS

20+ repositories

SebasTN

AI Company

AI company building sebastnOS operating system, Eliza autonomous agents, micro frontend deployed on AWS, AI applications, forecasting models, and algorithmic trading systems.

Python TensorFlow ElizaOS AWS

Hosted at sebastn.com

ClickReserve

Scheduling Platform

Reservation and scheduling platform for service-based industries. Design system, branding, and UX-first approach for barber shops, salons, car washes, and more.

Full-Stack Web UX Design

QuantLinc

Quantitative Finance

Quantitative trading research and tooling. ML-powered signal generation, algorithmic trading strategies, and financial analysis.

Python ML Trading

Projects

A selection of what I've built across DeFi, AI, smart contracts, and full-stack.

GMX AI Trade System

DeFi

Autonomous ML-powered trading bot for GMX perpetual DEX with self-training capabilities and real-time signal generation.

Python ML GMX

QuantL

DeFi

ML trading bot for GMX + ALPACA perpetual DEX with self-training capabilities and autonomous execution.

Python GMX ALPACA

CRYVESTO 2.0

Trading

Algorithmic trading application with automated strategy execution and portfolio management.

Python Algorithms

BitBotApp

Trading

Trading signals subscription service with real-time alerts and signal delivery.

Python Signals

DeFi Stablecoin

Foundry

Foundry-based algorithmic stablecoin with collateralization mechanics and price oracle integration.

Solidity Foundry

Cross-chain Rebase Token

CCIP

Cross-chain token with rebase mechanics using Chainlink CCIP for interoperability.

Solidity CCIP

CRYVISOR

DeFi

Crypto diversification application for portfolio analysis and optimization.

Python Finance
GitHub

ETF Analyzer

Finance

Financial database analysis with SQL for ETF performance tracking and visualization.

Python SQL
GitHub

Foundry Fund Me

Foundry

Crowdfunding smart contract with Chainlink price feeds and comprehensive Foundry test suite.

Solidity Foundry Chainlink

Smart Contract Lottery

Foundry

VRF-based provably fair lottery with Chainlink VRF and Automation integration.

Solidity Chainlink VRF

Foundry zkSync

L2

Layer 2 development on zkSync with Foundry tooling for scalable smart contracts.

Solidity zkSync

DAO Governance

Foundry

On-chain governance system with proposal creation, voting, and execution mechanics.

Solidity Governance

Account Abstraction

ERC-4337

ERC-4337 account abstraction implementation for smart wallet functionality.

Solidity ERC-4337

Upgradeable Contracts

Foundry

Proxy pattern implementations for upgradeable smart contracts.

Solidity Proxy

Merkle Airdrop

Foundry

Signature-based airdrop using Merkle tree proofs for efficient token distribution.

Solidity Merkle

Coin Crowdsale

ERC-20

Token crowdsale contract with minting capabilities and sale mechanics.

Solidity ERC-20
GitHub

ElizaOS Agents

AI

Autonomous AI agents built on ElizaOS framework for multi-purpose automation and interaction.

ElizaOS TypeScript

ChatHat

LLM

LLM-powered chatbot for the GitHat platform with context-aware conversations.

LangChain LLMs

CodeHat

LLM

Code generation LLM for the GitHat ecosystem with intelligent code assistance.

LLMs Code Gen

sebastnOS

OS

AI operating system for SebasTN, orchestrating agents, models, and applications.

Python AI

Flowise Chatbot

No-Code AI

Visual LLM workflow chatbot built with Flowise for no-code AI pipeline creation.

Flowise LLMs

Simli AI Avatar

AI

ElevenLabs AI agent with Simli-visualized avatar for interactive voice and visual AI experiences.

ElevenLabs Simli
GitHub

PDF LLM

RAG

Document processing with LLMs and RAG for intelligent PDF analysis and storage.

LangChain RAG

LLM Agents

Agents

Custom LLM agent framework for the GitHat platform with tool use and autonomous task completion.

LangChain Agents

NFTeria DApp Suite

Web3

Full-stack blockchain DApp with Next.js frontend, Express/PostgreSQL backend, and smart contract integration for DeFi payments.

Next.js Express PostgreSQL

ClickReserve

SaaS

Scheduling and reservation platform for service-based industries including salons, barber shops, and car washes.

Full-Stack UX

Colmado

E-Commerce

Marketplace for businesses and their customers with scalable architecture and user-friendly interfaces.

Full-Stack E-Commerce
GitHub Org

Hush-Brush

App

Beauty industry application for salon management and client booking.

Full-Stack
GitHub Org

BarberShopPlay

App

Barber shop management application with scheduling and client management.

Full-Stack

BeautyPOS

POS

Point of sale system designed for beauty and grooming businesses.

Full-Stack Stripe

CrowdScope

App

Crowd analytics application for event management and audience insights.

Full-Stack

NFTeria Meta Backend

Backend

Scalable Express.js backend with PostgreSQL, batch processing for financial data, ML signal generation, deployed on AWS with Docker.

Express PostgreSQL Docker AWS

CodeHawks: Token-0x

Audit

Competitive smart contract security audit on the CodeHawks platform.

Solidity Security
GitHub

Puppy Raffle Audit

Audit

Security audit identifying reentrancy vulnerabilities, weak randomness, and integer overflow issues.

Foundry Security

Santa's List Audit

Audit

Smart contract vulnerability assessment and security review.

Foundry Security

Multisig Timelock Audit

Audit

Multi-signature wallet and timelock security review for governance contracts.

Solidity Multisig

Audit Report Template

Tooling

Standardized audit reporting framework for consistent and professional security assessments.

Templates Reports

Deep Learning Neural Network

ML

Venture funding predictions with deep learning using TensorFlow neural networks.

TensorFlow Deep Learning

Credit Risk Classification

ML

Credit risk analysis using resampling techniques and classification models.

Scikit-Learn Classification
GitHub

Forecasting Net Prophet

ML

Time series forecasting with Prophet for financial market predictions.

Python Prophet

Financial Simulations

Finance

Monte Carlo simulations and API-driven financial modeling.

Python APIs

PyViz Data Visualization

Data

Interactive data visualization dashboards with PyViz ecosystem.

Python PyViz
GitHub

Unsupervised ML Clustering

ML

Clustering analysis with unsupervised machine learning algorithms.

Scikit-Learn Clustering
GitHub

Robo-Advisor

Finance

Automated investment advisor with portfolio optimization and risk assessment.

Python Finance
GitHub

Algo Forecaster App

ML

Forecasting bot rentals and subscription service with ML-powered predictions.

Python ML

Security Auditing

CodeHawks competitive auditor — Rank #190 • 1,144 EXP • 17 Findings

9 High
6 Medium
2 Low

CodeHawks: Token-0x

Competitive audit on the CodeHawks platform. Analyzed token contract for vulnerabilities including access control, reentrancy, and economic exploits.

Puppy Raffle

Identified reentrancy vulnerabilities, weak randomness in winner selection, and integer overflow risks in fee calculations.

Santa's List

Smart contract vulnerability assessment covering access control, state manipulation, and logic flaws in the naughty/nice list system.

Multisig Timelock

Security review of multi-signature wallet and timelock governance contracts. Assessed signing threshold logic and timelock bypass risks.

Security Toolkit

Foundry Fuzzing Slither Aderyn Manual Review Formal Verification

Education

Where it started.

2024

Cyfrin Updraft

Advanced smart contract security and DeFi development. Foundry fundamentals, smart contract auditing, security research, DeFi stablecoins, account abstraction, DAO governance, upgradeable contracts, and assembly/formal verification. Massive props to Patrick Collins for building Cyfrin Updraft — the best smart contract education in the space.

2022

Columbia FinTech Executive Bootcamp

Six-month intensive program focused on blockchain technologies and financial applications. Gained hands-on experience with Python programming, portfolio app development, forecasting models (TensorFlow, Scikit-Learn), algorithmic trading, AWS Lambda, smart contract development, and dApp architecture.