Collins Eguasa Evbadoloyi
@collinseguasaevbadol
Senior full-stack & backend engineer building secure fintech, utility, and real-time platforms with Python, Laravel, and React.
What I'm looking for
I’m a Senior Full-Stack/Backend Engineer with 5+ years of experience building fintech, utility, and real-time platforms. I take pride in backend architecture and delivering secure APIs, wallet systems, transactions, admin dashboards, and reliable third-party integrations.
In my current role, I led backend system design, data modeling, and core business logic for wallets, transactions, utilities, rewards, and promotions. I also implemented enterprise-grade authentication, role-based access control, and payment security, while integrating multiple providers with robust reconciliation and failure handling.
I enjoy owning products end-to-end—from system design to production deployment—across web and mobile experiences. I’ve also built Web3/NFT user interfaces, mentored 50+ students, and recently worked on an AI-powered code analysis platform using FastAPI and LLM-driven architecture audits.
Experience
Work history, roles, and key accomplishments
WaaS Full-Stack Engineer
Presency
Jan 2026 - Present (5 months)
Engineered a scalable Website-as-a-Service platform that automates multi-tenant website deployment, domain provisioning, and management. Built a monorepo architecture with dynamic domain routing (on-demand TLS), tenant theme engine from PostgreSQL, feature flags/tiered access, and automated CI/CD for resource-constrained infrastructure.
Senior Full-Stack Engineer
Nextpayday
Oct 2025 - Present (8 months)
Led backend architecture for a scalable utility fintech platform, delivering secure REST APIs for web/mobile React applications. Owned wallet, transaction, utilities, rewards, and promotions business logic, including enterprise authentication, RBAC, payment security, provider reconciliation, and an operations admin dashboard.
AI Architecture Audit Engineer
RefactorAI
Mar 2026 - Mar 2026 (0 months)
Designed and implemented a backend that analyzes GitHub repositories and generates automated architecture audits using large language models. Built an async, multi-stage GitHub ingestion and analysis pipeline with FastAPI background processing, stored structured results in PostgreSQL, and exposed REST APIs for frontend consumption.
PicConvert ImageOptimization Dev
PicConvert
Sep 2025 - Mar 2026 (6 months)
Built PicConvert, a SaaS for designers to compress, convert, and manage images for Framer projects with Figma and Framer plugin support. Developed a React/TypeScript dashboard with authentication and API key management, implemented Cloudinary-based processing to reduce image sizes, integrated subscription billing, and shipped editor plugins connected to the PicConvert API.
Lead Backend Engineer
Nutlip
Feb 2024 - Jan 2026 (1 year 11 months)
Designed and maintained scalable backends powering production web and mobile applications. Built and optimized APIs and databases while improving server performance and reliability through secure data flows, validation, and error handling.
Secure Transactions & Rewards Dev
Billp
Jan 2025 - Dec 2025 (11 months)
Designed and built backend architecture in Laravel for a utility platform supporting 300+ users. Implemented secure transaction flows with validation, reconciliation, and failure handling, plus a robust admin system and third-party provider integrations; migrated infrastructure to a self-hosted VPS and set up CI/CD and monitoring.
Frontend and Web3 Developer
Ovation
Nov 2023 - Sep 2025 (1 year 10 months)
Led frontend development for a Web3 decentralized application that enables users to view NFTs across multiple blockchains. Implemented wallet integrations and blockchain interactions and built responsive, user-friendly interfaces in collaboration with backend and blockchain teams.
Full-Stack Web & Mobile Developer
Sarutech
Jan 2022 - Jan 2023 (1 year)
Built and maintained complex web and mobile applications across multiple client projects, contributing to both backend and frontend development. Mentored and trained 50+ students and supported junior developers to improve team delivery and technical best practices.
Education
Degrees, certifications, and relevant coursework
Petroleum Training Institute
Higher National Diploma
2019 - 2024
Completed a Higher National Diploma at Petroleum Training Institute in Nigeria from 2019 to 2024.
Availability
Location
Authorized to work in
Website
devtb.xyzPortfolio
github.com/collinstb01Job categories
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