Backend Engineer

Open to part-time

Bio

Samuel A. is a Backend Engineer with several years of experience in developing scalable and efficient systems. His core stack includes Node.js, Express.js, JavaScript, TypeScript, and React, which he uses to build robust backend services, real-time applications, and dynamic user interfaces. Samuel employs modern development practices such as comprehensive testing and real-time data management to enhance application reliability and performance. At Atop Web Technologies, Samuel improved the quality of over 30 React components, increasing efficiency by 35% and facilitating the onboarding of 43 active studio owners. His projects like ParkMax and Clicky demonstrate his ability to create scalable solutions using the MERN stack and real-time communication technologies. Samuel holds a Bachelor of Science in Physics from the University of Ilorin and certifications in blockchain and analytics. He is well-suited for roles that require building reliable backend systems and optimizing operational processes.

Expertise

Node.jsMongoDBGraphQLGitJavaScriptSQLCSSHTMLPythonReactTypeScriptGoDocument DatabaseRelational Database

Video Intro

Assessments

General Project Assessment

(86/100)

Perfect on Implement LRU Cache AlgorithmMedium
Perfect on Understanding Rate Limiting in APIsMedium
Great on Ensuring Real-time Data Accuracy in Mobile AppMedium

Projects

ParkMax - A parking lot management system

a parking management system built using MERN stack featuring user-facing capabilities such as parking slot reservation, real-time entry and exit tracking, and live availability monitoring to optimize parking utilization. Developed a robust admin module to efficiently create and manage parking slots individually or in bulk, while providing real-time insights into occupancy levels and user activity. It has 3 different UI: User UI (https://park-mgt-frontend.vercel.app/), admin UI (https://park-mgt-frontend.vercel.app/admin/login) and security UI (https://park-mgt-frontend.vercel.app/security/login)

Clicky - A simple chat application

A real-time chat platform built on the MERN stack, delivering fast and reliable communication experiences. The system supports secure user authentication, instant messaging, offline presence, and typing indicators, enabling efficient and responsive interactions through real-time data exchange powered by Socket.IO, with backend services developed using Express.js and data management handled by MongoDB, alongside a dynamic interface built in React.js and server-side logic in Node.js.

Hostelite - A smart hostel management

It's an hostel management system meant to streamline operational efficiency by integrating features for room assignment, student information management, fee collection, and maintenance oversight. With a user (https://hostel-mgt-v2-user.vercel.app) and admin (https://hostel-mgt-v2-admin.vercel.app) UI. The system is built using the MERN stack, MongoDB for data management, Express.js and Node.js for backend services, and React.js for responsive and role-based user interfaces—ensuring scalability, reliability, and efficient handling of hostel operations.

Experience

Software Engineer
Atop Web TechnologiesJan 2023 — Apr 2024
- I ensured high quality and reliability through comprehensive testing of 30+ React components, identifying critical issues and optimizations that improved overall efficiency by 35% and directly supported the successful onboarding of 43 active studio owners at launch.
Node.jsExpress.jsJavaScriptTypescriptReactFirebase