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Full Stack Developer · Costa Rica

JoséLuisSequeiraG.

React/React Native · Next.js · .NET · Spring Boot · Node.js/Express

+3 years building real production enterprise systems: e-invoicing, B2B, and HR portals. Now exploring conversational solutions with LLMs.

Available for new opportunities · 2026
José Luis Sequeira G.
José Luis Sequeira G.
Full Stack Developer
3+
Yrs Exp.
8+
Projects
Full Stack
.NET · Spring · React
— Career Path2021 — present
2021
Education
UTN
Bachelor's in Software Engineering — coursework completed

Diploma in Information Technologies (Dec 2021). Bachelor’s completed, pending graduation. Foundations in algorithms, databases, software architecture, and web development.

JavaSQLHTMLCSSAlgorithms
2022–23
First job
One Consulting
Full Stack Developer · CAFSA

Completed the PurdyCuotas flow in CAFSA’s corporate workflow. Java 11 Spring Boot APIs, ReactJS interfaces, Jasper Studio reports, and SQL query optimization for financial reporting and audit.

Java SpringReactJSSQL ServerJasper Studio
2024–26
Growth
Órbitas
Full Stack Developer · Publicis Resources

6 enterprise projects: Costa Rica Hacienda v4.4 e-invoicing, HR portal with .NET 8 microservices, B2B platform with digital signatures, real-time Uber Direct integration, and an AI chatbot with Gemini. CI/CD on Azure.

React.NET 8AzureMicroservicesSignalRGeminiCI/CD
2026 →
Next level
Senior · Tech Lead
Architecture · Distributed systems · Applied AI

Aimed at roles with greater technical ownership — architecture design, leading development teams, and building systems that bring AI into real business workflows.

Senior Full StackArchitectureTech LeadApplied AICloud
— Skillstechnical skills
enterprise web platform
01
stack
enterprise web platform
01

Web Development

Full Stack across frontend, backend, databases, DevOps, and AI — ready to join any team.

End-to-end architectures: from the frontend to the database, with real integrations (ERP, e-invoicing, AI) and production-ready cloud deploys.

ReactNext.js.NET 8Java SpringTypeScriptSQL ServerAzureNode.jsCI/CDMongoDBLLMsGemini
8+
delivered projects
CONTACT ME →
cross-platform mobile app
02
stack
cross-platform mobile app
02

Mobile Apps

Cross-platform mobile apps with React Native and Expo — a single codebase for iOS and Android.

Store-ready native apps: auth, push notifications, and real-time data, wired to your backend and published on the App Store and Google Play.

React NativeExpoTypeScriptiOSAndroidEAS BuildPush NotificationsREST APIs
100%
shared iOS / Android code
CONTACT ME →
"
Sergio Marchionne
“The future belongs to those who have the courage to act and the ability to continuously improve.”
CEO · Fiat Chrysler Automobiles · 2004–2018