Jonatas S.

Senior Software Engineer| AI Engineer | Data Scientist | Data Engineer

Quick Summary: Former Deloitte Senior GenAI Software Engineer with 12+ years of Python expertise. Specialised in developing AI agents using Python, LangChain, and LangGraph, deploying them across major cloud platforms (AWS, GCP, Azure). DataCamp-certified in Data Analysis, Data Science, and Data Engineering and HackerRank-certified Software Engineer. "Jonatas was quick, accurate, and the code he wrote for my project was effective and well commented! Definitely recommend." ★★★★★ "Jonatas is an excellent programmer. He delivered a well-written Pinescript strategy and indicator as promised. Keep up the good work." ★★★★★ "We hired Jonatas for a week to optimise our models, and the results were incredible: over a 50% reduction in execution time! An extremely dedicated and focused professional." ★★★★★ Tired of manual processes and hitting limitations with your current tech? I build intelligent, autonomous AI agents that automate complex workflows, provide deep data insights, and create powerful new efficiencies for your business. You're likely here because you have a powerful vision for AI but need a true expert to bring it to life, in need of a strategic partner who can architect and deploy robust, enterprise-grade AI solutions on major cloud platforms like AWS, GCP, or Azure. That's exactly what I do. As a former Senior GenAI Software Engineer for Deloitte, I specialise in translating complex business needs into high-performance AI systems. I don't just deliver code; I deliver measurable results and a tangible return on your investment. My core value to you: ✅ Enterprise-Grade GenAI Development: Leveraging my experience at Deloitte, I build sophisticated AI agents using Python, LangChain, and LangGraph for the "new agentic era" of software. ✅ Proven Data Science Excellence: I implement advanced data analysis and predictive models, achieving up to 99.70% R² accuracy on projects, ensuring your decisions are backed by reliable data. ✅ Full-System Ownership: I am not just an AI specialist. With full-stack expertise (React.Native, TypeScript, Python, Flask) and deep database knowledge (PostgreSQL), I can own your project from front-end to back-end and deployment. ✅ Certified & Cloud-Fluent: I am certified by DataCamp (Data Analyst, Data Scientist, Data Engineer), HackerRank (Software Engineer), and AWS (Cloud Practitioner), with hands-on experience deploying across AWS, GCP, and Azure. My services include: - Custom AI Agent & LLM-Powered Applications - Workflow Automation & Process Optimisation - Predictive Analysis & Machine Learning Models - Automated Data Scraping & ETL Pipelines - End-to-End Cloud Solution Architecture (AWS, GCP, Azure) - High-Performance Back-End Development with Python & Flask Let's move your project from idea to implementation. Click the green "Invite to Job" button and send me a message about your project goals. I'll get back to you promptly to schedule a brief introductory call. P.S. Don't just take my word for it. Check out my portfolio on GitHub to see how I've implemented a huge variety of projects and developed data-driven products for my clients. Let's build your success story next!