JOHN MAINA

Wasoko is a B2B e-commerce company facilitating informal retailers to place product orders seamlessly via SMS or mobile app, ensuring free same-day delivery to their stores. My responsibilities include:

• Provided valuable insights in development & system design meetings for system enhancements.
• Crafted clean, readable, and maintainable code for new projects. Enhanced software performance through Redis cache optimization. Collaborated on migrating the monolith system to scalable microservices using Java, Spring Boot, RabbitMQ, pub/sub, PostgreSQL, and Redis cache.
• Developed commerce backend Restful APIs for our mobile and web applications
• Technologies: Java/Spring Boot, PostgreSQL, MySQL, GitHub, Jasper Reports, Maven, Gradle, GCP

Compulynx Limited is a leading software technology company specializing in retail management, biometric, and digital identity solutions. With a global presence, the company serves over 400 customers worldwide, catering to enterprises, small to medium companies, and governments. Responsibilities included:

• Collected and analyzed user requirements in client meetings, wrote clean code aligning with project needs. Conducted code maintenance, bug fixing, and optimized project performance (Law Society of Kenya project) using Redis cache.
• Technologies: Java, Spring MVC, Spring Boot, Play Framework, SQL, MySQL, HTML, JavaScript, jQuery, AngularJS, Jasper Reports, Maven

• Involved in various software development cycles, developed an Android app for marketing to collect client details. Used SQLite for local data storage, exporting for analysis via email. Gained proficiency in Java Play Framework for web applications. Technologies: Sugar ORM, Android SDK, Java