Open to opportunities

Olaoluwa Ajibade

@olaoluwaajibade

Message

I build reliable payment systems and financial infrastructure for high-volume transaction workflows.

Nigeria

Message

What I'm looking for

I'm looking to build reliable, cost-efficient payment and financial infrastructure, owning backend architecture, transaction workflows, integrations, and cloud operations in a product-focused team.

I'm building payment and billing infrastructure for LunixPos and Accessa Gym Management & Billing Platform, covering live transactions, subscriptions, reconciliation, and reliable webhook workflows.

At LunixPos, I led the backend for an e-commerce platform replacing Shopify, supporting 2,000+ active users and high-frequency order and payment operations. I built Stripe payment, referral, credit-distribution, idempotency, and third-party tax integrations.

For Accessa, I own backend architecture, APIs, database design, infrastructure, deployments, and monitoring for a gym management and billing platform. I'm building PostGIS-based check-ins, access control, subscription workflows, Monnify verification, and cost-efficient cloud operations.

Previously, I built Node.js microservices at Cloudenly, fintech loan features at Carrot Credit, and core banking application enhancements at Longbridge Technologies. I focus on transaction correctness, failure recovery, auditability, and maintainable cloud services.

Experience

Work history, roles, and key accomplishments

Current

Backend Engineer

Current

Accessa Gym Management & Billing Platform

Jan 2026 - Present (8 months)

Own the backend engineering and infrastructure for the platform, covering architecture, API development, database design, integrations, deployment, monitoring, and ongoing maintenance. Building a gym management and billing platform using PostGIS-powered location-based check-ins, subscription management, and access control.

PostGIS NodeJS Monnify AWS Docker CI CD PostgreSQL Redis Amazon SQS WebSockets Jest Prisma Sequelize Swagger Postman

Current

Backend Developer

Current

LunixPos

Dec 2024 - Present (1 year 9 months)

Led backend architecture and development of an e-commerce platform handling live transactions and payment workflows, replacing Shopify and reducing operational costs. Designed PostgreSQL data models and transaction workflows supporting 2,000+ active users and high-frequency order/payment operations.

PostgreSQL Stripe Prisma NodeJS NestJS Express AWS Docker CI CD Redis Amazon SQS WebSockets Jest Swagger Postman

Node.js Backend Developer

Cloudenly

Feb 2023 - Oct 2025 (2 years 8 months)

Architected and developed backend microservices using Node.js, Redis caching, messaging queues, and Sequelize. Deployed and maintained microservice servers on AWS EC2, using AWS RDS and MongoDB for persistence and performance.

NodeJS Redis Sequelize EC2 AWS RDS MongoDB DynamoDB WebSockets Socket.IO AWS SES Docker CI CD

Full-Stack Developer

Carrot Credit

Sep 2022 - Feb 2023 (5 months)

Spearheaded development for a fintech loan application, delivering new features and integrating third-party APIs including Binance and Trove. Established a backend unit-testing strategy using Jest and improved GitHub Actions CI/CD workflows for React and Node.js applications.

NodeJS React Jest GitHub Actions CI CD Binance REST API Trove API

Backend Developer / IT Support

Longbridge Technologies

Feb 2022 - Aug 2022 (6 months)

Supported and maintained core banking applications and enhanced functionality using Java, Spring Boot, and Play Framework. Improved API and developer documentation using SwaggerHub, Postman, and README files.

Java Spring Boot Play Framework SwaggerHub Postman SOAP APIs

Node.js Developer

Lanepact Apprenticeship

Jul 2021 - Jan 2022 (6 months)

Designed applications across education and finance using multiple technology stacks. Implemented secure authentication and authorization using Node.js, Passport, and JWT.

NodeJS Passports JWT Swagger Postman

Lead Backend Developer

Zuri Team

Feb 2021 - Jul 2021 (5 months)

Conceptualized and deployed HelperNG, a platform connecting NGOs and volunteers for access, verification, and meetups. Led a four-person backend team responsible for user data models, schemas, validation, and backend infrastructure.

NodeJS MongoDB AWS GitHub Actions