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Fernando Barrios

@fernandolba

Message

I build high-performance React and Next.js products for payments, logistics, and regulated industries.

Peru

Message

I've built critical payment, regulatory, and air-logistics products for Softtek, Rimac Seguros, Entelgy Consultores Chile, and Cementos Pacasmayo. At Rimac, I improved Core Web Vitals by up to 30% and received Softtek’s Voice of the Customer award for my impact on PayX payment experiences.

I lead frontend teams, define scalable React architectures, and deliver across Node.js APIs, microfrontends, CI/CD, and TypeScript migrations. I’ve also built high-transaction REST APIs using Node.js, Express, PostgreSQL, Sequelize, and Domain-Driven Design.

Experience

Work history, roles, and key accomplishments

Senior Frontend Developer

Softtek

Oct 2024 - May 2026 (1 year 7 months)

Coordinated frontend team tasks for critical payment and regulatory projects, implemented lazy loading and code splitting to improve Core Web Vitals by up to 30%, and integrated payment gateways. Awarded Voice of the Customer recognition for technical impact.

React TypeScript Tanstack Query Zustand Redux toolkit Tailwind Vite Nx (Monorepo)Jest Vitest AWS Amplify Azure SonarQube Scrum

Frontend Lead / Senior Consultant

Entelgy Consultores Chile

Dec 2021 - Oct 2024 (2 years 10 months)

Led frontend teams of up to 5 developers, defined frontend architecture from scratch using Feature-Based Architecture, and designed CI/CD pipelines with Node.js and GitHub Webhooks. Integrated REST APIs with Chilean Customs and SAP for air logistics.

React JavaScript Redux toolkit Material UI NodeJS Express Screaming Architecture Formik Yup GitHub Webhooks Scrum

Backend Developer

RRN Consulting

Jan 2021 - Dec 2022 (1 year 11 months)

Designed and built REST APIs for a high-transactional credit system using Domain-Driven Design, modeled data persistence with PostgreSQL and Sequelize, and documented APIs with Swagger. Mentored new backend developers.

NodeJS Express Sequelize PostgreSQL Swagger DDD Awilix Google Cloud Storage