Samuel Madu
Abuja,Nigeria
Summary
Backend Developer with 3+ years of experience designing scalable APIs, optimizing backend performance, and delivering production-ready systems using Node.js, PHP, and Laravel. Skilled in RESTful services, system design, CI/CD pipelines, and cloud deployment. Proven ability to lead projects, implement logging and rate limiting, build real-time messaging systems, and integrate Generative AI features into web applications. Currently expanding backend capabilities through a internship at Flexisaf and NCAIR and gaining enterprise exposure through job shadowing at Interswitch.
Overview
8
8
years of professional experience
8
8
years of post-secondary education
Work history
Backend Developer (Hybrid)
Belsoft Systems
Abuja, FCT
05.2025 - 07.2025
- Built REST APIs using Node.js and implemented real-time messaging with Socket.io
- Integrated logging, rate limiting, and CI/CD pipelines with GitHub Actions
- Led a team of 3 engineers, optimised MongoDB performance
- Prioritised tasks effectively under tight deadlines, ensuring project completion on schedule.
- Maintained updated documentation, aiding knowledge sharing amongst team members.
- Collaborated closely with front-end developers, enhancing overall project cohesion.
- Assisted in the design of scalable software architecture for future growth potential.
AI & Robotics Intern
NCAIR (Nigerian Centre for Artificial Intelligence and Robotics)
Abuja, FC
06.2025 - Current
- Engineered a geofenced school attendance system using GPS and NFC-enabled IoT sensors
- Designed the embedded architecture and integrated hardware-software workflows
- Built a secure RESTful API in Node.js for managing check-ins and automating parent notifications via email
Technical Support Associate
3MTT
Abuja
01.2025 - 07.2025
- Resolved 100+ tech issues/month and contributed to improving learning platform backend
- Documented all technical inquiries and solutions for future reference.
- Managed multiple tasks simultaneously, improved productivity achieved.
Node.js Developer (contract)
TalkTech NG
Abuja, FCT
02.2024 - 07.2025
- Designed and deployed a full POS backend with authentication, failover logic, and logging
- Built custom software solutions for enhanced business efficiency, increasing sales by 10%.
- Collaborated with cross-functional teams to ensure seamless project execution.
Web Developer (remote)
Home Language Intl.
San Francisco, california
06.2023 - 07.2025
- Automated WordPress tasks with WP-CLI, rebuilt backend logic for scalability
- Tested websites in various browsers and devices to ensure consistency.
- Managed hosting environments including database administration as well as scaling applications to handle load changes ensuring smooth functioning of the website.
Java Backend Intern
Flexisaf
Abuja
05.2025 - 10.2025
- Developing Java/Spring Boot APIs in an EdTech environment
- Applied object-oriented patterns and participated in debugging and performance tuning
Job Shadowing (Backend Engineering)
Interswitch Group
Lagos
05.2025 - 07.2025
- Observed fintech backend workflows, microservice design, and CI/CD pipelines
- Gained exposure to production systems and team collaboration in agile squads
Backend Engineer (Contract)
HemoBridge
Lagos
09.2024 - 07.2025
- Built donation/auth flows using modular monolith and event-driven architecture
- Designed scalable services and maintained technical documentation
Backend Engineer (Contract)
Oceptech
Nnewi
04.2024 - 10.2024
- Developed POS backend, integrated payment APIs, handled deployment tasks
PHP Backend Developer
Hayo Reinders
Auckland, New Zealand
01.2023 - 07.2024
- Maintained backend for education platform, secured endpoints, optimized Laravel backend
- Integrated third-party APIs into existing systems, expanding feature sets without extensive development time.
- Solved complex technical challenges by applying problem-solving skills and innovative solutions.
Hardware & Network Maintenance
Ibeto Group
Nnewi
06.2017 - 09.2018
- Maintained LAN, resolved technical faults, and supported IT infrastructure
Education
Diploma - Software Engineering (Backend)
AltSchool Africa
B.Sc. - Computer and Robotics Education
University of Nigeria, Nsukka
Skills
- Nodejs
- PHP
- JavaScript
- Java
- Laravel
- Expressjs
- PostgreSQL
- MySQL
- MongoDB
- Database Design
- Git
- GitHub Actions
- CI/CD
- Docker (basic)
- AWS (basic)
- PM2
- REST API Design
- Authentication (JWT)
- System Architecture
- Event-Driven Design
- Rate Limiting
- Logging
- Real-Time Messaging (Socketio)
- MVC
- Modular Monolith
- Generative AI Integration (OpenAI, DeepSeek)
- Chatbot Design
- AI-powered Learning Tools
- WordPress (custom development)
- API Integrations
- Agile
- Technical Documentation
Accomplishments
- NCAIR Smart Attendance System (In Progress): Built an IoT-powered geofenced school attendance tracker using NFC and GPS, with a Node.js backend to log events and notify parents in real time
- 3MTT AI Study Assistant: Prize-winning GenAI tool offering quizzes, scoring, and learning insights – GitHub
- SkillBridge (In Progress): Freelance platform using JWT, wallets, and modular backend
- Retail POS System: Integrated inventory, payments, and receipts with robust backend
- CARISCA Research: Co-authored supply chain paper using Dijkstra’s and TSP models
- Process Automation: Reduced team workload by 10+ hrs/week using backend scripting
Timeline
AI & Robotics Intern
NCAIR (Nigerian Centre for Artificial Intelligence and Robotics)
06.2025 - Current
Backend Developer (Hybrid)
Belsoft Systems
05.2025 - 07.2025
Java Backend Intern
Flexisaf
05.2025 - 10.2025
Job Shadowing (Backend Engineering)
Interswitch Group
05.2025 - 07.2025
Technical Support Associate
3MTT
01.2025 - 07.2025
Backend Engineer (Contract)
HemoBridge
09.2024 - 07.2025
Backend Engineer (Contract)
Oceptech
04.2024 - 10.2024
Node.js Developer (contract)
TalkTech NG
02.2024 - 07.2025
Web Developer (remote)
Home Language Intl.
06.2023 - 07.2025
PHP Backend Developer
Hayo Reinders
01.2023 - 07.2024
Hardware & Network Maintenance
Ibeto Group
06.2017 - 09.2018
B.Sc. - Computer and Robotics Education
University of Nigeria, Nsukka
Diploma - Software Engineering (Backend)
AltSchool Africa
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