Hello, I am
Ayotunde Ajayi
Backend-focused Software Engineer crafting scalability with Rust & Distributed Systems.
Technical Arsenal
A comprehensive toolset for building scalable, high-performance systems.
Languages
Data & API
ML / AI
Infrastructure / DevOps
Professional Experience
Full Stack Engineer (Remote)
Platform Security & OAuth 2.0
Secured the platform by engineering a robust OAuth 2.0 authentication flow with access/refresh tokens using NestJS and Next.js, ensuring data integrity for sensitive client documents.
Real-Time Video Conferencing
Spearheading the core remote notarization experience. Building a WebRTC video conferencing module and digital signing solution to enable real-time client verification.
Frontend Web Developer (Remote)
Core Card Designer Optimization
Enhanced the core designer tool by implementing reusable UI components and optimizing frontend algorithms, measurably improving page load times and responsiveness.
Legacy Refactoring & State Management
Refactored legacy code into reusable React components and established clear state conventions, leading to decreased bug resolution time and improved modularity.
Internal CMS Development
Built a comprehensive Admin CMS from the ground up with full CRUD capabilities, giving the admin team full control over templates and design assets.
Accelerated Delivery by 25%
Integrated Next.js frontend with REST APIs and defined strict API contracts in an agile team, increasing sprint velocity by 25%.
Engineering Case Studies
Breakdown of architectural decisions and engineering challenges.
Distributed Job Queue System
The Challenge
High-throughput systems require reliable asynchronous task processing with fault tolerance and persistence, which simple in-memory queues cannot provide.
The Solution
Built a fault-tolerant distributed job queue in Rust with durable persistence, retries, and graceful worker recovery. Implemented backpressure handling and consumer lag monitoring.
The Impact
Created a robust infrastructure component capable of supporting high-volume real-time data ingestion with guarantee of execution.
SmartAR Tailor
The Challenge
Fashion retailers face high return rates due to poor sizing. Existing solutions required expensive hardware or complex user setups.
The Solution
Architected a mobile-to-backend pipeline for 3D human reconstruction using Gaussian Splatting. Performs 360° video ingestion and GPU-based reconstruction.
The Impact
Enabled precise remote body measurements using standard smartphones, bridging the gap between digital retail and physical tailoring.
The Challenge
Standard async runtimes can be opaque. Understanding the low-level mechanics of futures, wakers, and reactors requires building one from scratch.
The Solution
Implemented a complete async runtime from the ground up featuring a work-stealing scheduler, OS-backed reactor (epoll/kqueue), and atomic task lifecycle management.
The Impact
Created a high-performance, non-blocking executor with CPU-aware worker pools and lock-free coordination, serving as a robust educational foundation for async I/O.
NextGen Spike Store
The Challenge
Building a scalable e-commerce platform for electronics that requires a robust client interface and a powerful controller system.
The Solution
Engineered a full-stack e-commerce platform featuring admin dashboards, product management, and secure checkout. Containerized and deployed on Render.
The Impact
Delivered a fully functional, deployed platform with seamless user management and order processing.
Ready to Scale?
I am currently accepting new contracts for immediate start. If you have a complex project that requires high-performance engineering, let's talk.