available for new opportunities

Babajide
Odesanya.

Backend Engineer  /  Systems Architect

I build the infrastructure that makes products scale. Distributed systems, API design, and database architecture — with a focus on reliability, observability, and developer experience.

./view_projects ./get_in_touch
3yr
Experience
3+
Projects shipped

Professional Summary

Building systems that
don't wake you up
at 3am.

I'm a backend engineer with over 3 years of experience building scalable and reliable systems. I recently graduated from Middlesex University, where I studied Information Technology and Business Information Systems, giving me a strong understanding of how technology aligns with business needs and drives growth.

My focus is on building clean APIs, efficient backend services, and systems that are maintainable, secure, and performance-driven. I enjoy solving complex technical problems and writing code that is simple, readable, and built to last.

Beyond coding, I'm passionate about continuous learning, improving system design knowledge, and growing as an engineer while contributing to impactful products and teams.

Typescript PHP Java Node.js SQL NoSQL Redis Kafka AWS REST APIs Docker
  • Aug 2025 —
    Oct 2025
    Backend Engineer
    Vendcliq
    Integrated a payment service so users on the platform can process transactions seamlessly.
  • Jan 2024 —
    Sep 2025
    Backend Engineer
    Tech Studio Academy
    Worked on multiple projects, focusing on backend development and system design.
  • 2022 —
    2023
    Junior Backend Engineer
    K-Mate Concept Venture Limited
    Developed and improved backend logistics and customs-clearing systems by digitising shipment workflows, enhancing operational efficiency, data accuracy, and application reliability.

Selected Projects

project_01
Vendcliq - Smart Vending and Digital Commerce Platform

A digital commerce and financial operations platform helping drink vendors manage inventory, sales, supplier purchases, payments, and business growth through a unified mobile ecosystem.

TypescriptNestJSPostgresqlRedisDocker
  • Led the integration of 9PSB financial services into the platform, enabling virtual account creation, wallet funding, transfers, and digital payment processing
  • Built backend services supporting vendor payment workflows across bank transfers, wallet transactions, and bill payment operations
  • Developed cron-based background jobs to continuously monitor pending transactions and automatically resolve failed or delayed payment states
  • Created a Redis-based authentication caching strategy for 9PSB API integrations, reusing active access tokens across requests to eliminate redundant token generation and improve API performance
  • Implemented secure transaction logging and audit-trail systems to improve financial traceability and operational compliance
  • Enhanced backend observability through structured logging and centralized exception handling, reducing debugging and incident-resolution time by 40%
live
project_02
Tech Studio Admin Dashboard Version 2.0 - Educational Operations and Admin Management Systems

An internal administrative platform designed to manage courses, cohorts, curriculum distribution, analytics, communication workflows, and operational activities for large-scale educational programs.

TypeScriptNestJSAws S3PostgresqlSlack Webhook APiGithub Actions CI/CD
  • Developed backend services for course and cohort management, supporting scalable educational operations and administrative workflows
  • Built Google Spreadsheet generation functionality for marketing cycles, reporting, and student-management processes
  • Implemented activity logging systems to track and audit all administrative actions across the platform
  • Automated curriculum uploads and file distribution workflows using DigitalOcean cloud storage integrations
  • Designed and implemented a scalable logging and monitoring architecture using Slack Logger and Sentry integrations with Builder and Strategy design patterns
  • Developed a modular Mail Service supporting SMTP, AWS SES, and Mailgun providers, enabling flexible and extensible email delivery workflows
  • Built a cloud-agnostic File System module integrating AWS S3, DigitalOcean Spaces, and Google Cloud Storage for adaptable file management
  • Collaborated with product and frontend teams to ensure all backend functionalities aligned with updated platform design specifications
  • Produced technical documentation for implemented services and backend workflows to improve maintainability and team collaboration
live
project_03
ByteAlley — Digital Creator Commerce Platform

A digital commerce platform enabling creators to sell digital products, manage communities, process purchases, and monetize their skills through an integrated online ecosystem.

PHPLaravelPostgreSQLAWS S3Github Actions CI/CD
  • Developed the review and rating system to improve user engagement and platform interaction
  • Built the "Join Community" endpoint to support community onboarding workflows
  • Created the FAQ endpoint to improve content accessibility and user self-service experience
  • Implemented secure KYC document-upload functionality using AWS S3 and DigitalOcean Spaces for cloud-based file storage
  • Added discount and promotional pricing functionality for product purchases and campaign management
  • Developed super-admin and admin dashboard functionalities with analytics and operational reporting capabilities
  • Improved backend support for the "Contact Us" feature to enhance customer communication workflows
  • Implemented revenue-tracking logic to ensure accurate purchase analytics and financial reporting
  • Built the "Create Admin" functionality with role-based administrative access management
  • Collaborated closely with frontend engineers to ensure seamless API integration and feature delivery
  • Conducted unit and feature testing to improve backend reliability and production readiness
  • Developed the "Get Package" functionality enabling product retrieval and routing using URL slugs
live
project_04
10X Revenue Platform — Evergreen Sales & Digital Growth Platform

A digital growth and commerce platform helping coaches, experts, and course creators convert prospects into paying customers through automated sales systems, payment processing, analytics, and audience engagement tools..

JavaScriptExpress JSMongo DBPayment Integration(Paystack)Node js
  • Built the authentication and access-control system for secure user management and platform access
  • Developed backend payment workflows supporting seamless digital product transactions and revenue generation
  • Implemented analytics services powering the administrative dashboard and business performance reporting
  • Engineered the review and feedback system to capture customer engagement and product insights
  • Designed the mailing system supporting automated communication and customer-notification workflows
  • Developed the email-subscription functionality to support audience engagement and marketing campaigns
live

Writing

all posts on medium ↗
May 2026  ·  2 min read  ·  Systems Design
ACID vs BASE: Why Some Systems Choose Accuracy While Others Choose Availability
From banking transactions to social media feeds, distributed systems make deliberate trade-offs between strict consistency and continuous availability. ACID and BASE explain why.
↗
Feb 2026  ·  2 min read  ·  Performance
CAP Theorem Explained: Why Distributed Systems Must Choose Between Consistency and Availability
From banking systems that prioritize accurate balances to social platforms that never seem to go offline, the CAP Theorem explains the architectural trade-offs behind modern distributed systems.
↗
Dec 2025  ·  3 min read  ·  Growth
A Year of Growth, Responsibility, and Becoming more
From building financial systems and improving educational platforms to moving to the UK and embracing new opportunities, this reflection captures a year defined by growth, resilience, and intentional change
↗
Follow me on Medium I write regularly on distributed systems, API design, and backend engineering craft.
@obajide028 ↗

Get In Touch

Let's build something
worth running in prod.

Open to backend engineer roles, and interesting systems design conversations. Drop me a line.

emailobajide028@gmail.com
linkedinlinkedin.com/in/babajide-odesanya-241524223/
githubgithub.com/obajide028
mediummedium.com/@obajide028
~ profile.json
$ oba profile.json

{
  "name": "Babajide Odesanya",
  "role": "Backend Engineer",
  "location": "London, UK",
  "experience": 3+,
  "available": true,
  "preferred_stack": [
    "TypeScript", "PHP", "JAVA", "NestJs", "Laravel", "Spring Boot"
  ],
  "contact": {
    "email": "obajide028@gmail.com",
    "github": "@obajide028",
    "linkedin": "Babajide Odesanya",
    "medium": "@obajide028"
  },
  // currently Preparing for my AWS Solutions Architect certification
  "status": "open to opportunities"
}

$