Damilola Ajayi
Backend Software Engineer
Lagos, NG.About
Highly accomplished Backend Software Engineer with 3+ years of experience, specializing in designing and implementing robust, scalable API infrastructures and optimizing system performance. Proven track record at Atoovis and RahaPay, where I significantly enhanced API response times by up to 53% and reduced failed deliveries by 35%. Proficient in TypeScript, JavaScript, Python, and Agile methodologies, I excel at developing high-availability systems, optimizing databases, and fostering collaborative environments to deliver innovative software solutions that drive business growth.
Work
RahaPay
|Backend Software Engineer
Lagos, Lagos State, Nigeria
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Summary
Led backend engineering initiatives at RahaPay, developing high-performance RESTful APIs and critical payment systems that processed thousands of daily transactions and significantly improved API response times.
Highlights
Engineered high-performance RESTful APIs capable of processing thousands of daily transactions, ensuring high availability and reliability.
Optimized API performance through strategic Redis caching and query optimization, cutting average response times from 5 seconds to 900 milliseconds.
Built a robust utility payment processing system, integrating multiple service providers with automated validation and real-time transaction tracking.
Developed a modular pricing engine, supporting dynamic fee calculations and custom pricing rules across diverse service categories.
Designed and implemented a secure authentication system with multi-factor verification, rate limiting, and automated token refresh mechanisms.
Atoovis
|Backend Software Engineer (contract)
Lagos, Lagos State, Nigeria
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Summary
Drove backend development and architecture at Atoovis, engineering scalable API infrastructures and advanced logistics solutions that enhanced system functionality and reduced failed deliveries by 35%.
Highlights
Architected a scalable API infrastructure supporting multiple interconnected services, including inventory management and transaction processing.
Engineered a smart logistics optimization service that analyzed delivery coordinates, calculated optimal routes, and automatically suggested cost-effective delivery partners.
Implemented an intelligent address validation and geocoding system, improving delivery accuracy and reducing failed deliveries by 35%.
Developed an advanced location-based recommendation system using MongoDB's geospatial queries, enabling precise store discovery within a 50km radius.
Implemented strategic Redis caching for tokens and frequent queries, reducing average API response time from 750 milliseconds to 350 milliseconds.
Education
AltSchool Africa
Software Engineering
Skills
Technical Skills
Software Architecture, Full-Stack Development, Database Optimization, Agile Project Management, TypeScript, JavaScript, Python, React, NestJS, Express.