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Software Engineer with 8 years of professional experience building full-stack web applications, APIs, and cloud platforms across frontend, backend, and DevOps. I work primarily with TypeScript/JavaScript, React/Next.js, Node.js/NestJS, and AWS, delivering solutions in banking, retail, e-commerce, and logistics. I’m currently relocating to Europe and am open to opportunities across Europe. I can self-fund my relocation, and where required I’ll need employer-supported work authorization.…Software Engineer with 8 years of professional experience building full-stack web applications, APIs, and cloud platforms across frontend, backend, and DevOps. I work primarily with TypeScript/JavaScript, React/Next.js, Node.js/NestJS, and AWS, delivering solutions in banking, retail, e-commerce, and logistics. I’m currently relocating to Europe and am open to opportunities across Europe. I can self-fund my relocation, and where required I’ll need employer-supported work authorization.

Sebastian Perez

Full Stack Developer, Software Engineer, Back-End Developer, +1

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Software Engineer with 8 years of professional experience building full-stack web applications, APIs, and cloud platforms across frontend, backend, and DevOps. I work primarily with TypeScript/JavaScript, React/Next.js, Node.js/NestJS, and AWS, delivering solutions in banking, retail, e-commerce, and logistics. I’m currently relocating to Europe and am open to opportunities across Europe. I can self-fund my relocation, and where required I’ll need employer-supported work authorization.…Software Engineer with 8 years of professional experience building full-stack web applications, APIs, and cloud platforms across frontend, backend, and DevOps. I work primarily with TypeScript/JavaScript, React/Next.js, Node.js/NestJS, and AWS, delivering solutions in banking, retail, e-commerce, and logistics. I’m currently relocating to Europe and am open to opportunities across Europe. I can self-fund my relocation, and where required I’ll need employer-supported work authorization.

Available to hire

Software Engineer with 8 years of professional experience building full-stack web applications, APIs, and cloud platforms across frontend, backend, and DevOps. I work primarily with TypeScript/JavaScript, React/Next.js, Node.js/NestJS, and AWS, delivering solutions in banking, retail, e-commerce, and logistics.

I’m currently relocating to Europe and am open to opportunities across Europe. I can self-fund my relocation, and where required I’ll need employer-supported work authorization.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Spanish; Castilian

Fluent

English

Advanced

Work Experience

Full Stack Engineer at Kibernum

September 1, 2025 - Present

Develop and maintain TypeScript/React frontend features and Node.js/NestJS backend services for logistics and operational workflows used by Correos de Chile. Implemented finance/reporting capabilities including advanced filters, detail workflows, Excel exports and API integration across frontend and backend layers. Improved performance of slow status-filtering flows by normalizing status codes and refining repository/query logic while preserving expected UI behavior. Write and maintain automated tests with Jest and React Testing Library, resolve SonarQube findings and support code-quality and coverage requirements. Work with PostgreSQL, Docker, REST APIs and CI/CD-oriented development practices in a production enterprise environment.

Software Engineer at Imagemaker

December 1, 2022 - September 1, 2025

Modernized legacy systems using React.js and Node.js and integrated AWS services including Lambda, API Gateway and serverless, contributing to lower operating costs. Designed ETL workflows with AWS Glue for large CSV/JSON/Parquet datasets (up to ~1 TB). Integrated Shopify APIs, React micro-frontends and Node.js/AWS Lambda services for e-commerce solutions. Applied TDD with Jest and React Testing Library, documented engineering processes in Confluence and contributed to Agile/Scrum planning. Built RESTful APIs and backend integrations focused on reliability, maintainability and user-facing performance.

Full Stack Developer at AFEX

January 1, 2022 - December 1, 2022

Developed and improved the Afex Connect web/mobile platform using React.js, Angular, Node.js, React Native and AWS services. Built serverless components with Cognito, S3, CloudFront, SES, SNS, SQS and Amplify. Implemented real-time features with Socket.IO and optimized React rendering and interaction patterns. Worked across CI/CD, GitFlow, Jenkins, Scrum/JIRA and code-review practices; mentored junior developers.

Software Engineer at Cencosud Scotiabank

April 1, 2020 - January 1, 2022

Built and optimized micro-frontend applications with React.js, Next.js and Angular in banking environments. Implemented Backend-for-Frontend patterns with Node.js to improve communication between microservices and external APIs. Configured CMS tooling, documented internal component libraries with Storybook and delivered reusable UI components. Implemented CI/CD pipelines with Bitbucket, Jenkins, Docker and Argo CD; performed automated testing with Jest and API testing with Postman.

Frontend Engineer at Inovabiz

March 1, 2019 - April 1, 2020

Delivered microservice-based web applications for ChileCompra and Mercado Público using React and Java APIs. Worked with Azure DevOps, Jenkins and Argo CD across development, staging and production environments. Expanded automated testing with Jest and Postman and documented APIs with Swagger. Migrated backend components toward AWS Serverless and MongoDB and developed responsive JavaScript applications.

Software Engineer at Volltech

June 1, 2018 - March 1, 2019

Developed ERP solutions using the MERN stack and SQL Server for a multi-company environment. Migrated legacy PHP/jQuery applications to Node.js and React.js and automated deployments with shell scripting. Built real-time chatbot functionality with Node.js sockets and supported cloud-migration and database-performance initiatives.

Software Developer at FIXA

January 1, 2018 - June 1, 2018

Maintained accounting software solutions using PHP, React, Node.js and SQL. Built MERN-based workflow tools and provided technical support and troubleshooting for client systems.