Backend Engineer

Summary

Samuel A. is a highly motivated Back-End Engineer based in Kwara, Nigeria, with a robust foundation in software engineering and a strong proficiency in Node.js, JavaScript, TypeScript, Python, Go, HTML, CSS, Solidity, and SQL. He is experienced with developer tools such as VS Code, Postman, Google Search Console, Git, and Vercel, and demonstrates expertise in modern technologies and frameworks including Node.js, Express.js, React, Redux, Firebase, Socket.IO, MongoDB, PostgreSQL, Docker, gRPC, and GraphQL. Samuel has proven experience as a Software Engineer at Atop Web Technologies, where he elevated application quality by improving over 30 React components and increased onboarding success for studio owners. His projects, such as ParkMax, Clicky, and Hostelite, showcase his ability to deliver scalable and efficient solutions leveraging the MERN stack—MongoDB, Express.js, React.js, and Node.js—as well as implementing real-time communication and robust data management systems. Holding a Bachelor of Science in Physics from the University of Ilorin and additional certifications in blockchain and analytics, Samuel is detail-oriented and passionate about building reliable backend systems that drive operational excellence.

Meet SAMUEL A.

"Introduce Yourself"

"What are you looking for in your next opportunity?"

Assessment Scores

General Project Assessment

86%

Perfect on Implement LRU Cache Algorithm, Difficulty Medium

Perfect on Understanding Rate Limiting in APIs, Difficulty Medium

Great on Ensuring Real-time Data Accuracy in Mobile App, Difficulty Medium

Experience

Atop Web Technologies

Software Engineer

Remote

Jan 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.

Technologies:

Node.js

Express.js

JavaScript

Typescript

React

Firebase

Projects

ParkMax - A parking lot management system

Demo

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

Demo

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

Demo

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.