Otunba Odubanjo

Software Engineer | Backend & Fullstack Developer

Email: otunbaodubanjo@gmail.com

GitHub: github.com/otunba-codes

LinkedIn: linkedin.com/in/otunba-odubanjo-2296b6239

Location: Lagos, Nigeria

About Me

Software Engineer building APIs, web applications, and business systems. Experienced in developing payment platforms, utility billing systems, ecommerce solutions, and automation tools with a focus on reliability, maintainability, and user experience.

Skills

JavaScript (ES6+)TypeScriptHTML5CSS3React.jsNext.jsTailwind CSSNode.jsExpress.jsMongoDBREST APIsJWT AuthenticationWebhooksPayment GatewaysSystem DesignGit & GitHubPostman

Experience

Software Engineer (Freelance & Personal Projects)

2022 - Present
  • Built APIs and web applications for payment processing, utility billing, ecommerce, and business automation.
  • Designed multi-provider billing systems for airtime, data, electricity, and utility services.
  • Integrated third-party services including payment gateways, SMS providers, and email platforms.
  • Implemented authentication, authorization, request validation, and secure transaction workflows.
  • Developed inventory management, ecommerce, booking, and service delivery platforms.
  • Maintained backend systems built with Node.js, Express.js, MongoDB, and REST APIs.

Featured Projects

Sales & Inventory Accounting System

Business management platform for tracking sales, inventory levels, and accounting operations with real-time analytics and reporting.

VTU & Bill Payment Platform

Payment platform supporting airtime, data, electricity, and utility bill purchases with multiple provider integrations and transaction management.

View Project →

Billboard Booking System

Platform for managing billboard advertisement bookings, availability schedules, and administrative operations through a centralized dashboard.

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Signival – SMM Panel & OTP Platform

Platform combining an SMM panel for social media service management and an OTP verification system for temporary phone number activation and SMS code delivery.

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Power Solution Mall

E-commerce and business website for Power Solution Mall, specializing in power-related products including inverters, solar panels, batteries, and electrical equipment with secure checkout, plus blog and company information sections.

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Construction Calculator

Engineering tool for steel building measurements, load estimation, and material quantity calculations.

View Project →

Education

B.Sc. Computer Science — Ladoke Akintola University of Technology (LAUTECH)

2022 - 2026 (Expected)

Relevant coursework: Data Structures, Algorithms, Web Development, Database Management Systems, Software Engineering

Engineering Practices

Error HandlingAPI Rate LimitingRequest ValidationAuthentication & AuthorizationSecure Transaction WorkflowsThird-party IntegrationsREST API DesignVersion Control (Git)

Available for internships, freelance projects, and remote opportunities.

Built with Next.js + Tailwind CSS