Alejandro Guespud Diaz
About
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Frontend-Focused Full Stack Engineer
Valle del Cauca, Colombia
Résumé
Jobs
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Senior Full Stack EngineerInstituto Colombiano AgropecuarioAug 2023 - Dec 2024 (1 year 5 months)Led the end-to-end technical development of a national and international platform for pest cataloging, driving both architectural decisions and feature delivery.
Managed system architecture, coordinated development efforts, and ensured scalability, security, and high availability across government and scientific environments.
Collaborated with cross-functional teams to deliver a robust, maintainable, and high-impact platform aligned with operational and regulatory standards.
• Leveraged experience with Dojo Toolkit in previous roles to inform best practices in front-end development and architectural patterns for the pest cataloging platform.- BFull Stack Engineer | Fintech PlatformBitrus ExchangeJun 2022 - Current (4 years 5 months)Frontend-Focused Full Stack Engineer | Bitrus Exchange
• Built and optimized a high-availability fintech platform handling 50,000+ monthly transactions with 99.9% uptime.
• Increased transaction success rates by 15% through integration of payment APIs (Mastercard and custom systems).
• Led a mobile-first redesign that improved user experience and reduced complaints by 30%.
• Implemented frontend workflows using asynchronous data handling, API integrations, and state management to streamline user interactions and improve efficiency. - SSoftware Engineering InstructorServicio Nacional de Aprendizaje-SENA.Aug 2021 - Sep 2023 (2 years 2 months)Trained 200+ students in programming, databases, and agile methodologies, preparing them for real-world software development roles.
Designed and delivered 10+ structured training programs, improving student employability and technical performance.
Mentored and guided academic projects aligned with industry standards, strengthening problem-solving and development skills.
Collaborated with multidisciplinary teams to continuously improve curriculum quality and align training with current technology trends. - Frontend Engineer public Remote experienceEstraDigitalDec 2020 - Jun 2022 (1 year 7 months)Built a government-backed platform enabling 200+ entrepreneurs to launch and manage online stores.
Developed and optimized 15+ responsive React-based landing pages, increasing user engagement by 20%.
Integrated secure payment solutions, reducing transaction failure rates by 18%.
Implemented real-time features that improved operational efficiency by 25%.
Worked closely with product and backend teams to deliver scalable, high-performance, and user-centered applications.
While this role primarily centered on React.js development for building and optimizing frontend interfaces, my foundational understanding of other JavaScript frameworks like Vue.js and Angular has informed my approach to creating robust and adaptable f - UComputer Science LecturerUniverisad Santiago de CaliAug 2020 - Apr 2021 (9 months)Taught programming fundamentals and digital tools to 100+ undergraduate students, preparing them for entry-level tech roles.
Designed and delivered structured learning programs that increased course pass rates by 12%.
Implemented hands-on teaching methodologies aligned with real-world development practices.
Collaborated with academic teams to improve curriculum quality and align training with industry needs. - Junior Full Stack Engineer (Intern) verified_user Verified experiencePlay Technologies S.A.SOct 2019 - Oct 2020 (1 year 1 month)Supported the development of a betting platform handling 1,000+ daily active users with secure transaction processing.
Contributed to real-time backend services and automated payment systems, helping reduce operational errors by 20%.
Assisted in building an admin dashboard that automated 30% of manual processes, improving efficiency.
Worked closely with senior engineers to deliver scalable and reliable features in a production environment.
Education
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- Certified Scrum Master (CSM) – CertiProfCertiprofMay 2024 - Jun 2024 (2 months)Trained in agile methodologies, Scrum frameworks, and team facilitation to improve delivery efficiency and collaboration.
- CBachelor’s Degree in Systems EngineeringCUN – Corporación Unificada Nacional de Educación Superior | Bogotá, ColombiaFeb 2023 - May 2025 (2 years 4 months)Bachelor’s Degree in Systems Engineering
CUN – Corporación Unificada Nacional, Bogotá, Colombia - Technology Degree in Information Systems DevelopmentServicio Nacional de Aprendizaje (SENA)Jan 2018 - Dec 2020 (3 years)Associate Degree in Information Systems Analysis and Development
SENA, Colombia