Adolfo Guevara

Refactored the User Management application applying SOLID principles, improving code maintainability and readability and increasing performance by 70%. Normalized legacy database following ACID principles reducing average query time by ~90% (from 5 minutes to ~3 seconds per query). Introduced automated testing with 80% coverage to raise code quality and reduce regression bugs.

Owned the development of the ETS (Ersatzteilanfragen) feature, a revenue-critical module that streamlined spare parts requests, increasing request throughput by 75% and reducing processing time. Developed and integrated text-prediction capabilities in the customer chat module, using LangChain and OpenAI APIs to generate context-aware responses and improve user engagement.

Achieved a key milestone of acquiring 5 new customers by building and deploying a high-performance API to retrieve and consume vendor data, enabling a faster go-to-market. Reduced invoice processing time by 50% by refactoring the invoice system using microservices and SOLID principles, significantly enhancing maintainability and scalability.

Drove the adoption of Kiu Click by new airline customers, including World2Fly and Ariella Airlines, by leading the development of a robust GUI built with Vue (frontend) and Django (backend) to improve the airline user experience and significantly increase active users. Managed and tracked project tasks, ensuring on-time delivery of new features and enhancements Onboarded and mentored new developers, conducting technical interviews and providing guidance to accelerate their ramp-up

TTS Viajes: is a tourism-oriented company that delivers tailored services to companies. Developed and launched the company’s public-facing website using React and PHP, improving online presence and customer acquisition. Collaborated with stakeholders to gather requirements and ensure seamless integration with existing systems Techstack: JavaScript, React, PHP, Bootstrap, SQL, Elasticsearch, Laravel, jQuery.

Wirall Interactive was a digital marketing agency that worked with different international and nationals clients. Developed SPAs and e-commerce sites for multiple clients, improving UX and conversion rates. Built responsive front-end components ensuring cross-browser support and SEO-friendly performance. Techstack: React, JavaScript, Angular.js, jQuery, Bootstrap, PHP, Laravel, Magento.

MiUne is the University web app for the students, teachers and the administrative staff . Developed modules for the MiUNE web app, streamlining academic and administrative processes. Taught Programming II and Databases I courses to undergraduate students, designing curricula and assessments to strengthen their practical coding skills. Techstack: PHP, HTML5, CSS, SQL, JavaScript, jQuery, Zend.