Freelancer profile translated to English.
Back to original languageAbout Walter
I am a Senior Full Stack Software Engineer with over 8 years of experience building scalable web applications and enterprise systems for clients in Peru, Brazil, and Panama, in sectors such as digital banking, insurance, e-commerce, retail (HR), and government.
I primarily work with Node.js, NestJS, React.js, TypeScript, and AWS, designing high-performance microservices architectures. I also integrate Artificial Intelligence into real-world solutions (agents, automation, and copilots) as a co-founder of TIKPE, my AI products company.
I can help you:
- Develop your web product from start to finish.
- Build robust APIs and microservices.
- Optimize cloud architecture and infrastructure on AWS.
- Automate processes with AI.
Some results I have achieved:
- 40% reduction in cloud infrastructure costs.
- Up to 5x performance improvements in critical systems.
- International deployments in production.
I am results-oriented, with clear communication and on-time delivery.
Spanish
Native or bilingual
English
Conversational
Portuguese
Conversational
Remote only
Primarily works remotely
Experience
- Frice ConsultingSenior Full Stack EngineerCIVIL ENGINEERINGDecember 2025 - Today (6 months)(Client: Cencosud) Development of the Cencoplus (medical leave and vacation management) and Cencovar (payroll, KPIs, and bonuses) systems, a unified Human Resources system for the region.- Backend with NestJS and microservices architecture on AWS.- Frontend with React.js, focused on performance and user experience.- Integration of HR processes and reports for multiple countries.
- APPLICACORPFull Stack EngineerMay 2025 - July 2025 (2 months)(Project: Digital Banking and Yappi Digital Wallet)• Contributed to the development of a digital banking project for the Yappy account creation and association process (digital wallet).• Implementation of robust solutions using AWS, backend in Java 20 and microservices.
- INDRAAWS Backend DeveloperMay 2024 - Today (2 years and 1 month)• Development of microservices and event-based APIs for the client La Positiva Seguros, focusing on architecture, backend, databases, and deployment on AWS.• Key achievement: I was the first to complete the migration of the microservices architecture to API Gateway, complying with DevSecOps standards.
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Education
- Computer Engineering (Bachelor's Degree)UNIVERSIDAD NACIONAL DE PIURAIngeniería Informática (Bachiller)