Software & AI Engineer | Full-Stack Developer | Backend Architect

I’m a Full-Stack Engineer with 5+ years of experience building fintech, utility, Web3, and AI-powered platforms. I enjoy designing scalable backend systems, building clean APIs, and developing production-ready web and mobile applications.

My work spans backend architecture, frontend development, blockchain integrations, and AI-powered systems. I focus heavily on building secure, scalable systems and taking products from system design to production deployment.

I’m particularly interested in the intersection of:

• Artificial Intelligence
• Backend Architecture
• Developer Tools
• Web3 Infrastructure
• Scalable Fintech Platforms

Languages

• Python
• Node.js
• PHP
• TypeScript
• C# (.NET)

Frameworks

• FastAPI
• Express.js
• NestJS
• Laravel
• .NET Web API

Architecture

• REST APIs
• Microservices
• Event-driven systems
• Background processing
• Queue systems
• Secure authentication systems

• React
• Next.js
• TypeScript
• Modern component-based architectures

Focused on building clean UI connected to scalable backend systems.

• React Native
• Cross-platform mobile apps
• Blockchain wallet integrations

• Wallet integrations
• NFT platforms
• Blockchain APIs
• Crypto wallet infrastructure
• Solidity
• Rust

SQL

• PostgreSQL
• MySQL

NoSQL

• MongoDB
• Redis

• Docker
• GitHub
• CI/CD workflows
• Cloud deployments
• API infrastructure

Led backend architecture for a scalable utility fintech platform supporting web and mobile applications.

Key contributions:

• Designed wallet and transaction systems
• Built secure APIs for financial transactions
• Implemented role-based authentication
• Integrated multiple payment providers
• Built a comprehensive admin dashboard for operations

Tech Stack

Laravel • PHP • MySQL • REST APIs • Queues • React Integration

Designed and maintained backend systems powering production applications.

Responsibilities:

• Designing scalable APIs
• Managing databases
• Improving server reliability and performance
• Implementing secure data flows and validation systems

Tech Stack

Node.js • APIs • Database Architecture

Worked on a Web3 NFT social platform enabling users to view NFTs across multiple blockchains.

Responsibilities:

• Implemented wallet connectivity
• Built responsive user interfaces
• Integrated blockchain APIs

Tech Stack

React • Web3 • Wallet Integrations • Blockchain APIs

Built and maintained multiple production applications while mentoring developers.

Highlights:

• Delivered full-stack web & mobile solutions
• Mentored 50+ students in software development
• Contributed to team growth and engineering best practices

• AI-powered developer tools
• LLM infrastructure and prompt engineering
• Backend architecture and scalable APIs
• DevOps and deployment automation
• AI + Web3 intersections

• Artificial Intelligence
• Developer productivity tools
• Fintech infrastructure
• Web3
• Entrepreneurship
• Real estate technology

🌐 Portfolio
https://devtb.xyz/

💼 LinkedIn
https://www.linkedin.com/in/collins-eguasa-181200239

💻 GitHub
https://github.com/collinstb01

📧 Email
collinstb01@gmail.com

✨ “Great software is built where clean architecture meets real-world problems.”