Adriana C.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

👋 I’m a seasoned full stack software engineer with over 4 years of experience in building exceptional AI-driven SaaS products for high growth companies. Why work with me? 🚀 I build modular, scalable React applications using the MERN stack to create engaging digital experiences that transform user workflows. 🚀 I harness the power of cloud computing and microservices architecture (AWS and Google Cloud Platform). 🚀 I develop custom APIs and build seamless third-party API integrations (payment gateways, social media, CRM/CMS, AI, and mapping). 🚀 I elevate user interactions via AI-driven chatbots by training chatbot models, fine-tuning them to meet specific use cases, and crafting conversational designs that embody the chatbot's persona. Working closely with B2B SaaS startups, my mission is to help you scale efficiently, enhance product quality, prevent technical debt, and foster intelligent growth for both your applications and teams! The MERN stack is my go-to choice for its flexibility, exceptional performance, scalability, open-source nature, and cost-effectiveness. As a JavaScript aficionado, I revel in using a single programming language for seamless front-end and back-end development. React enables me to create fast, reusable interfaces, while Node.js excels at ensuring scalability and handling high traffic volume and user demand. Let's join forces and bring your visionary SaaS products to life, paving the way for unparalleled success and growth! My approach to scalable development and microservice architecture: 🔥 Independent Services 🔥 Load Balancing 🔥 Automatic Scaling 🔥 Caching Mechanism 🔥 Decentralized Databases and Files Storage 🔥 Asynchronous Processing Core Foundations: ⭐️ Strategic planning & accurate estimations ⭐️ Clean, scalable, and maintainable code ⭐️ TDD, CI/CD, automated testing & analysis ⭐️ Clear documentation to describe purpose of code ⭐️ Results-oriented focus with high-consistency ⭐️ Can fully integrate in teams or develop from scratch ⭐️ English proficiency and great communication Technologies: ✅ Node.js, Express.js, Next.js, JavaScript, CSS, HTML ✅ Tailwind CSS, Material UI ✅ Python and Unix Scripting, LitElement, Fastify, NGINX ✅ DynamoDB, MongoDB, Firestore, Cloud SQL ✅ Jenkins, Node Tap, Mocha, Cypress, Storybook ✅ AWS, Google Cloud Platform ✅ Dialogflow ES and CX ✅ Facebook Graph API/Messenger Development ✅ Git, Gitlab, and Gitlab CI/CD ✅ ESLint, Prettier, and CircleCI ✅ Contentful, HubSpot API, Zapier, Airtable, SendGrid Skill Set: 🧠 Full Stack Development 🧠 Software Quality Engineering (SQE) 🧠 Test Driven Development (TDD) 🧠 Artificial Intelligence Chatbot Development 🧠 Machine Learning 🧠 Cloud Computing and Cloud Security 🧠 Microservices Architecture 🧠 Agile (Scrum) Methodology 🧠 Release Management 🧠 Automated Testing 🧠 Version Control I have used the following APIs and tools on my previous projects: - Social Media Platforms: Facebook Graph API, Twitter API - Payment Gateway: Stripe, Limepay, Paypal - Cloud Services API: AWS SDK, Firebase API, Google Cloud SDK - Messaging Service: Twilio, Slack, Delightful, SendGrid - CMS: Contentful API, Airtable API - CRM: Hubspot API - Rewards Platforms: Yotpo, U-Coin - Scheduling Tool: Simplybook, Google Calendar API - Analytics: Chatbase, Facebook Analytics API - AI Tools: Dialogflow  - Location and Mapping: OpenWeather Map, Google Maps API - Integration tool: Zapier I highly prefer long-term full-time contracts and look forward to joining your team, taking complete ownership of the requirements and quality!