Software Engineer | FinTech & Blockchain | Automation & Data Visualization

Welcome to my GitHub! I build complex software systems, financial tools, and blockchain applications. Here you’ll find projects that showcase both my professional expertise and personal experimentation in high-complexity architectures, automation, and interactive analytics.

I have hands-on experience with financial systems and complex backend architectures, including:

• Payment Systems & Ledgers: authentication, capture, release operations, transaction flow
• Wallets & Microtransactions: designing and integrating wallets, handling microtransactions safely
• Blockchain Integration: smart contracts, decentralized exchanges, crypto trading, arbitrage
• Financial Compliance & Reporting: understanding of KYC/AML flows, auditing, transaction tracking
• Complex System Design: modular, distributed architectures, message/event-driven systems

I combine my knowledge of finance with software engineering to design scalable and robust solutions for modern banking and crypto ecosystems.

• Backend & Full‑Stack: Node.js, JavaScript (ES6+), Vue.js, REST APIs
• Programming languages: JavaScript, Python, SQL, TypeScript
• Databases: MongoDB, relational and NoSQL databases

• Automation frameworks: scripts and services in Node.js and Python
• Algorithmic tools: bot logic and automation decision engines
• DevOps & workflow tooling: modular automation, scheduling, CI/CD

• Interactive dashboards and graphs driven by real data
• Libraries like D3.js, Chart.js and front‑end data binding
• Translating data into insights through clear visuals

• Version control with Git & GitHub
• Project structuring, modular codebases and maintainable architecture
• Automated testing, deployment pipelines and documentation

Below are some standout public repositories from my GitHub — each demonstrates a core skill set or real‑world application of technical knowledge.

An automated cryptocurrency trading bot that detects price inefficiencies between pools and executes trades to capture arbitrage opportunities.

• Tech: Node.js, JavaScript, on‑chain integration
• Features:
  • Real‑time scanning across liquidity pools
  • Profitability calculation and automated execution
  • Modular execution pipeline

👉 Shows advanced automation, API integration and async logic.

Several Python scripts and small packages designed for automation, tooling and data manipulation:

• Code organization: modular structure
• Use cases: data parsing, API wrappers, task automation
• Principles: readable, reusable, testable

👉 Demonstrates Python fluency and utility scripting.

Full front‑end projects that combine real data with interactive charting:

• Stack: Vue.js + Chart.js and D3.js
• Purpose: turn backend data into meaningful visual insights
• Elements: filters, dynamic updates, responsive UI

👉 These dashboards turn business or analytics data into narratives you can explore visually.

My development philosophy centers on writing clean, maintainable, and modular code that solves real problems. I build systems that are:

• Readable – for myself and collaborators
• Reusable – components that work across projects
• Testable – dependable and stable
• Documented – easy to understand and contribute to

Whether I'm building backend services, automation bots, or interactive charts, the goal is always the same: deliver high‑quality software that scales and adapts.

• 🌐 GitHub – https://github.com/francescoguarino
• 💼 LinkedIn – https://www.linkedin.com/in/francesco-guarino-598647332

🚀 I’m always exploring new technologies, improving workflows, and building tools that make software more efficient, more insightful and more impactful.