Building scalable backend systems, real-time data pipelines, and production-grade APIs engineered for reliability at scale. Based in Africa · Working globally.
Developed real-time data engineering and automation pipelines integrating high-frequency API and WebSocket streams, implementing monitoring, conditional execution logic, caching strategies, retry mechanisms, and structured logging to enable resilient, high-throughput automated decision workflows with minimal event-processing delay.
● CurrentBuilt and deployed scalable backend systems and robust REST APIs with advanced ORM/SQL optimization, authentication and middleware design, event-driven workflows, background job scheduling, caching strategies, and Docker-based deployments with CI/CD integration.
Engineered automated data pipeline and machine learning model workflows for a crypto prediction system, utilizing AWS EC2 to enhance backend performance, improve overall system efficiency, and reduce memory usage by 70%.
↓ 70% memory usageDesigned and integrated REST APIs to manage vendors, drivers, customers, and end-to-end order lifecycle workflows within a logistics platform, improving delivery accuracy and operational efficiency.
Engineered secure, production-grade Django backend systems with RBAC-enforced REST APIs, optimized relational query performance, and test-driven implementations to ensure scalability and reliability.
E-Commerce backend engineered with clear separation of concerns, secure authentication flows, transactional integrity, and scalability-oriented system design.
Scalable booking and payment platform built on microservices with automated onboarding and real-time WhatsApp/Telegram notification workflows for seamless operations.
Real-time ML crypto forecasting system with integrated data engineering and automated prediction pipelines. Processes high-frequency market signals with minimal latency using FastAPI.
Django-based content platform with PostgreSQL and CKEditor5 for rich dynamic article publishing and editorial content management workflows.
From zero to production — I design and build scalable backend systems and the infrastructure that powers modern web platforms.
Architecture design for scalable, maintainable systems — layered backends, microservices, event-driven workflows, and clean separation of concerns from day one.
Production-grade APIs with authentication, RBAC, rate limiting, versioning, and thorough test coverage. Built with Django or FastAPI to your spec.
End-to-end web platforms combining scalable backend systems with modern frontend interfaces designed to evolve with your product.
Event-driven and scheduled automation, background job pipelines, Python scripting, Selenium/Playwright workflows — reducing manual workload significantly.
High-frequency data ingestion, WebSocket streams, API aggregation, and ML workflow integration — built for low-latency, high-throughput environments.
PostgreSQL schema design, ORM query optimization, index tuning, and performance profiling to eliminate bottlenecks before they hit production.
Structured logging, metrics tracking, performance monitoring, and production debugging workflows to maintain system health at scale using sentry, grafana etc
Unit testing, Integration testing, API contract testing, test automation pipelines, and reliability-driven development.
Containerized deployments with Docker, CI/CD pipelines via GitHub Actions, and monitoring — shipped reliably and repeatably.
Lekan was contracted to build the backend for our logistics platform and delivered ahead of schedule. The APIs were cleanly structured, properly documented, and performed reliably at scale. Highly recommended.
Lekan delivered multiple automation and live data pipeline projects with precision and speed. Each implementation was thoughtfully designed, well-documented, and capable of handling real-time workloads without instability.
Lekan delivered a clean and highly functional platform for my brand. The website is easy to navigate, and the automated booking and payment system significantly reduced my administrative workload. Managing student registrations is now seamless and efficient.
Open to backend engineering roles, freelance contracts, and interesting architecture problems.