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Mi mayor logro fue el desarrollo de una API estratégica para la facturación electrónica, conectando a la DIAN, RealTech y la Universidad Distrital. Además, participé activamente en la toma de decisiones de desarrollo, implementando prácticas innovadoras tanto en backend como en frontend, utilizando tecnologías como PHP, Laravel, HTML, CSS, Bootstrap, y jQuery. Junior Software Engineer - NTTDATA Septiembre 2022 - Agosto 2023 Durante mi tiempo en NTTDATA, me enfoqué en la atención de clientes de renombre como ENEL Codensa, Bodytech y Telefónica Movistar. Participé activamente en la resolución de bugs y en el desarrollo de nuevas funcionalidades, manejando tanto frontend como backend. Además, colaboré en el diseño de interfaces utilizando herramientas como Figma, contribuyendo integralmente al ciclo de vida del desarrollo de software. 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Core Skill Set • Full Stack Development: Node.js, React.js, Next.js, Laravel, Inertia.js • AI / Machine Learning: OpenAI (GPT-3/4), Hugging Face, LangChain, Rasa, TensorFlow, PyTorch • Backend Engineering: Python, Flask, FastAPI, GraphQL, REST APIs • Frontend Development: React, Vue.js, Tailwind CSS, HTML5, CSS3, FlutterFlow • Chatbot Frameworks: Rasa, Dialogflow, Voiceflow, Microsoft Bot Framework • Workflow Automation: n8n, Zapier, Make (Integromat) • Databases: PostgreSQL, MongoDB, MySQL, Firebase, Redis • Cloud & Infrastructure: AWS, GCP, Firebase, Docker, Kubernetes • Additional Tools: Git, CI/CD, ML Pipelines, Web Scraping, Data Integration 1️⃣ Backend Engineering • Node.js + Express + MongoDB + OpenAI GPT • Python + Flask + Hugging Face + PostgreSQL • FastAPI + LangChain + MySQL 2️⃣ AI / LLM & Chatbot Development • Python + GPT-4 + FastAPI + Redis • Node.js + LangChain + OpenAI + Redis • Rasa + TensorFlow + MongoDB • React + Node.js + GPT + MongoDB • Voiceflow + GPT 3️⃣ Frontend & UI Engineering • React + Tailwind CSS + Redux • Vue + Vuetify + Axios • Next.js + React + TypeScript • FlutterFlow 4️⃣ Workflow Automation • n8n + PostgreSQL + OpenAI GPT • n8n + Firebase + GraphQL 5️⃣ Cloud & Infrastructure • AWS Lambda + Node.js + GPT • GCP + Python + Hugging Face • Docker + Kubernetes + GCP 6️⃣ Machine Learning & Data Science • Python + TensorFlow + Pandas + AWS • Python + Scikit-learn + Flask ?️‍♂️ Web Scraping & Data Automation I develop intelligent web scraping, data extraction, and automated data pipelines using Python, BeautifulSoup, Selenium, Playwright, and anti-detect technologies. For analytics and ML workflows, I use Pandas, NumPy, Scikit-Learn, and TensorFlow. ? Focused on building AI-powered systems that boost efficiency, enhance decision-making, and streamline business operations. Thanks, William Henerson","logos":{"normal":{"url":"https://workana.s3.amazonaws.com/logos/eb85e116f55ae6b0b8d934c17923c524/bq/22401441_160_160.jpg","width":160,"height":160},"thumb":{"url":"https://workana.s3.amazonaws.com/logos/eb85e116f55ae6b0b8d934c17923c524/oi/22401441_30_30.jpg","width":30,"height":30},":original":{"url":"https://workana.s3.amazonaws.com/logos/eb85e116f55ae6b0b8d934c17923c524/mm/22401441.jpg","width":460,"height":460},"profile":{"url":"https://workana.s3.amazonaws.com/logos/eb85e116f55ae6b0b8d934c17923c524/lr/22401441_192_192.jpg","width":192,"height":192},"large":{"url":"https://workana.s3.amazonaws.com/logos/eb85e116f55ae6b0b8d934c17923c524/zo/22401441_300_300.jpg","width":300,"height":300}},"country":"MY","lastActive":"2025-12-29 13:54:29","created":"2025-08-04 21:40:08","open":0,"active":0,"completed":"0","rating":"0.00","paid":0,"verifiedPaymentMethod":false,"worker":{"id":11263529,"slug":"william-henderson","canInvite":false,"skills":{"934":{"id":934},"685":{"id":685},"768":{"id":768},"274":{"id":274},"234":{"id":234},"246":{"id":246},"947":{"id":947},"1051":{"id":1051},"853":{"id":853},"1012":{"id":1012},"188":{"id":188},"67":{"id":67}},"history":"? Work History ⭐ Senior Full Stack Developer 10+ Years Experience | AI, Automation & Scalable Systems • Architected and delivered high-performance backend systems using Django, FastAPI, and PostgreSQL, supporting over 100,000 daily active users with consistent uptime and reliability. • Developed optimized RESTful APIs with Django REST Framework and FastAPI, improving server response speed by 30%. • Built real-time, event-driven features using WebSockets through Django Channels and FastAPI, enabling seamless live interactions. • Designed and implemented advanced front-end interfaces using React.js and Vue.js, significantly enhancing UX and engagement rates. • Streamlined deployment workflows using Docker, Kubernetes, and CI/CD pipelines, reducing deployment time by 40%. • Integrated AI-powered features using OpenAI GPT and Hugging Face, boosting automation and user personalization. • Led development and mentoring efforts, guiding cross-functional teams toward best practices in scalable system design. ⭐ Full Stack Developer • Delivered enterprise-grade web applications using Django and Flask, ensuring security, scalability, and clean architecture. • Designed and optimized SQL (PostgreSQL/MySQL) and NoSQL (MongoDB/Redis) databases, ensuring high data integrity and system performance. • Migrated legacy monolithic applications into microservices using Flask and FastAPI, increasing system modularity and scalability. • Implemented secure authentication solutions using JWT, OAuth2, and role-based access control, aligned with industry security standards. • Automated internal workflows and third-party integrations using n8n, Zapier, and custom Python scripts, reducing manual workload. • Created technical documentation and conducted training sessions to elevate team knowledge and onboarding efficiency. • Built foundational chatbot prototypes using Rasa and GPT-based architectures, supporting conversational automation initiatives. ⭐ Junior Web Developer • Supported development of dynamic web applications using Flask and Django, working on models, views, templates, and API endpoints. • Built interactive front-end features using JavaScript, jQuery, and CSS frameworks such as Bootstrap and Tailwind. • Collaborated with senior developers in code reviews, debugging, and optimization, improving application performance and security. • Gained experience in automated testing using PyTest, Selenium, and unit testing frameworks, ensuring reliability and maintainability. • Assisted in integrating third-party APIs and basic automation workflows, building a foundation for advanced development skills. • Contributed to UI/UX improvements through iterative design and feedback cycles.","rating":5,"ranking":51,"position":{"position":"gold","next":{"name":"Platinum","next":"hero","description":"Platinum es el quinto nivel de Workana. ¡Estás llegando a la cima! Ahora más que nunca recuerda chequear tu actividad en la plataforma: ingresos, calificaciones y clientes satisfechos. ¡Sigue siendo un éxito! Leer más ","explain":"Un freelancer Platinum es realmente un profesional TOP. El talento Platinum conoce a sus clientes, sabe trabajar de manera remota y brinda un excelente servicio. Su carrera no para de crecer, y solamente le falta conocerte a ti. ¿Qué esperas para contratarlo? Leer más"},"name":"Gold","description":"Gold es el cuarto nivel de Workana. Estás a un paso de convertirte en un top freelancer y acceder a los mejores beneficios. Continúa el excepcional trabajo: ingresos, calificaciones y clientes satisfechos son la clave. Leer más","explain":"Un freelancer Gold ya ha trabajado con por lo menos 4 clientes diferentes y consiguió muy buenos resultados. Para estos profesionales, su reputación es muy importante. ¡No te pierdas la oportunidad de conocer su talento en tu próximo proyecto! Leer más"},"completed":3,"hourlyRate":{"rate":25,"currency":"USD"},"badges":[{"type":"membership_premium","profile":"worker","active":true}],"shouldShowHireMeDialog":false},"profileUrl":"https://www.workana.com/freelancer/76e6c62dc5b678579d3412d9be66cd67","logoUrl":"https://cf.workana.com/logos/eb85e116f55ae6b0b8d934c17923c524/bq/22401441_160_160.jpg","truncatedCompanyDescription":"? I’m William Henerson, a Malaysia-based Full Stack Developer with over a decade of experience in crafting intelligent, scalable, and automation-focused digital solutions. I specialize in integrating Large Language Mo...","ratingData":{"label":"5 of 5.00","stars":5},"countryData":{"country":"MY","name":"Malaysia","class":"flag flag-my","url":"https://www.workana.com/en/freelancers/malaysia?ref=freelancer_view","blankGif":"https://cf.wkncdn.com/static/assets/build/img/blank.4f4e80a62.gif"},"skillTags":[{"anchorText":"React Native","anchorLink":"https://www.workana.com/en/hire/react-native","isCertified":false,"title":"React Native - Freelancers"},{"anchorText":"Laravel","anchorLink":"https://www.workana.com/en/hire/laravel","isCertified":false,"title":"Laravel - Freelancers"},{"anchorText":"React.js","anchorLink":"https://www.workana.com/en/hire/react-js","isCertified":false,"title":"React.js - Freelancers"},{"anchorText":"PHP","anchorLink":"https://www.workana.com/en/hire/php","isCertified":false,"title":"PHP - Freelancers"},{"anchorText":"MySQL","anchorLink":"https://www.workana.com/en/hire/mysql","isCertified":false,"title":"MySQL - Freelancers"},{"anchorText":"Node.js","anchorLink":"https://www.workana.com/en/hire/node-js","isCertified":false,"title":"Node.js - Freelancers"},{"anchorText":"Chatbot","anchorLink":"https://www.workana.com/en/hire/chatbot","isCertified":false,"title":"Chatbot - Freelancers"},{"anchorText":"ChatGPT","anchorLink":"https://www.workana.com/en/hire/chatgpt","isCertified":false,"title":"ChatGPT - Freelancers"},{"anchorText":"Artificial intelligence","anchorLink":"https://www.workana.com/en/hire/artificial-intelligence","isCertified":false,"title":"Artificial intelligence - Freelancers"},{"anchorText":"Next.js","anchorLink":"https://www.workana.com/en/hire/next-js","isCertified":false,"title":"Next.js - Freelancers"},{"anchorText":"JavaScript","anchorLink":"https://www.workana.com/en/hire/javascript","isCertified":false,"title":"JavaScript - Freelancers"},{"anchorText":"IT & Programming","anchorLink":"https://www.workana.com/en/hire/it-programming","isCertified":false,"title":"IT & Programming - Freelancers"}]}],"viewAllUrl":"https://www.workana.com/en/freelancers?ref=freelancer_view","g11n":{"title":"Other freelancers in our spotlight:","viewAll":"View all profiles","hire":"Hire","viewDetails":"View more","completedProjects":"Completed projects:"}},"backgrounds":{"show":false},"actions":{"directPaymentUrl":"https://www.workana.com/checkout/direct/4394fbdc5c2db05701dbfba5385a04e2","directPaymentText":"Send direct payment"},"bannerAccelerator":null}