Mauricio Henao

Fullstack Developer

Built an order-book-based stablecoin trading and liquidity management platform with backend order services and a real-time WebSocket order book UI. Integrated stablecoin price feeds and liquidity tracking, improved reliability with Docker on AWS, and added predictive analytics to optimize liquidity and reduce real-time risks.

Next.jsTypeScriptPostgreSQLWebSocketsREST APIsDockerAWSPredictive AnalyticsLiquidity Management

Blockchain Engineer

Developed Arbitrum smart contracts for payroll and fund distribution and implemented an identity-compliant dApp backend in NestJS. Integrated Travel Rule compliance, implemented passkeys-based passwordless authentication, and used Docker Compose and Foundry for clean dev/staging/prod environment support.

SolidityArbitrumNestJSVue.JsTravel RuleDocker ComposeFoundryKYC Compliance

Fullstack Developer

The Home Depot

Delivered a BLE-based employee attendance tracking system integrated with Azure IoT Central and Azure Event Hub. Built backend services in Go and data processing in GCP, and developed React/React Native apps for HR monitoring and analytics, including anomaly detection based on BLE sensor patterns.

GoAzure IoT HubAzure Event HubsGoogle Cloud PlatformReactReact NativeFlutterAnomaly DetectionData Pipelines

Fullstack Blockchain Engineer

Migrated smart contracts across MultiverseX (EGLD) to CosmWASM and then to Solidity for EVM compatibility, deploying to Archway and Injective testnets/mainnets. Built Foundry/Rust test suites, an Next.js frontend for cross-chain analytics, implemented IBC and Cosmos SDK modules, and fixed Python API behavior for oracle-trigger and whitelist updates.

CosmWASMSolidityRustFoundryNext.jsCosmos SDKIBCArchwayInjectability

Fullstack & Blockchain Engineer

Developed and deployed a financial platform for tokenized card payments, custodial smart accounts, and crypto on/off-ramp flows using a serverless AWS architecture. Built admin and user experiences (Next.js and Flutter), implemented treasury controls and risk/fraud hooks, and applied AI-driven fraud/risk scoring using Bedrock and Kinesis for improved transaction safety.

AWS LambdaAPI GatewayDynamoDBRedisServerlessNext.jsFlutterAWS AI BedrockAmazon Kinesis

Fullstack Developer

Developed a cross-platform application delivering real-time trading signals and market news with push notifications and a modular serverless backend. Built a Next.js web platform optimized for accessible, SEO-friendly content delivery and added AI-based sentiment and market-pattern modules to improve alert relevance.

Next.jsReact NativeExpoAWS LambdaAPI GatewayDynamoDBSentiment AnalysisServerless Architecture

Fullstack Developer

Built Next.js ecommerce frontends and integrated payment gateways and inventory systems. Implemented Azure Functions backends for cart and order workflows, set up Azure DevOps CI/CD, and added lightweight AI for product recommendations and stockout risk detection.

Next.jsReactAzure FunctionsAzure Cosmos DBAzure DevOpsCI CDRecommendation Systems

Blockchain Engineer Lead

Led an IoT-to-blockchain ecosystem for RF spectrum monitoring, including oracles, ERC20 tokens, and an on-chain reward system. Built STM32/ESP32 telemetry and AWS IoT ingestion, developed Chainlink oracle/VRF-based rewards, and delivered Next.js and React Native apps for spectrum visualization and blockchain payouts.

SolidityOn Chain OraclesHardhatFoundryAWS IoT CoreMQTTNext.jsReact NativeTinyML

Blockchain Engineer Lead

Developed the blockchain + IoT crop monitoring platform, including Dynamic NFTs, oracles, ERC20 tokens, and custodial wallet integration. Built AWS IoT Core event-driven processing and serverless backends, delivered Next.js and React Native frontends for alerts and visualization, and added predictive models to generate early crop-risk alerts and classify faulty sensor readings.

SolidityDynamic NFTsIPFSHardhatFoundryAWS IoT CoreMQTTNext.jsPredictive Analytics

Senior IoT Engineer

Designed BLE-based environmental monitoring sensor networks and built Azure IoT Edge modules for preprocessing sensor data. Implemented Node.js/Azure Functions ingestion and React/React Native visualization and alerting for agriculture monitoring.

MQTTAzure FunctionsReactReact NativeSensor Networks

Fullstack & IoT Developer

Built an IoT device using ESP32 and BLE with vibration control, secure cloud synchronization, and adjustable intensity. Implemented Node.js serverless services on AWS IoT Core/Lambda/DynamoDB plus React/React Native web and mobile dashboards, and created a Chrome extension using Web Bluetooth for browser-to-device control.

ESP32MQTTAWS IoT CoreReactReact NativeChrome extensionsPower Control

Frontend Developer

Built enterprise SmartFit Gym SaaS frontend features including real-time booking with QR-based access and admin panel tools for branch management. Developed React Native mobile and tablet access experiences and supported Firebase/Node.js backend integration, localization for Colombia and Costa Rica, and CI/CD using AWS CodeCommit and EC2.

EC2ReactReact NativeFirebase AuthenticationFirestoreQR Code AccessLocalizationCI CDAWS CodeCommit

Fullstack Developer

Integrated CoinPayments for crypto ecommerce and built Ethereum/Cosmos smart contracts to support Web3 payments. Developed Web3-enabled Next.js applications and worked with Kubernetes (k3s) and Helm for infrastructure deployment.

Next.jsSolidityCosmos SDKFoundryKubernetesHelmWeb3.jsSmart Contracts

Android Developer & Tokenomics

Performed ICO reviews and tokenomics analysis, creating KPI metrics to evaluate investment opportunities including total supply, pricing, and concept/team factors. Supported development work for the QCams webcam platform after its acquisition by Cam4.

TokenomicsICO EvaluationKPIsJavaScriptPricing ModelsTeam Concept AssessmentBackend Support