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Javier Morillas

@javiermorillas

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Java developer at Alten building features and audit trails for Star2127, an enterprise funds and operations platform.

Spain

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At Alten – Ineco, I develop features for Star2127, an enterprise platform for managing funds and operations. I extend its domain model and implement business logic, persistence, and audit trails within an existing enterprise architecture.

I also design dynamic forms with Form.io and integrate them with Jmix Flow UI and Vaadin. The work includes preserving the history and traceability of changes to business data.

Previously, at Alten – Isdefe, I implemented inventory and stock-traceability features for Vestupol, a warehouse management system. I optimized PostgreSQL queries, refactored legacy modules, and investigated production issues.

Earlier, I developed Android applications at Alten – TragsaTEC, Movetia, Full-On-Net (Tivify), and GeneticAI. In 2025, I also designed and developed ColmeCopia, a web catalog with an authenticated administration dashboard using Next.js, React, TypeScript, and Supabase.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Java Developer

Current

Alten

Jan 2026 - Present (9 months)

Developing new functionalities for the Star2127 platform, expanding the domain model with JPA entities, services, Jmix views, and PostgreSQL persistence. Implementing dynamic forms with Form.io and business logic with Jmix Flow UI and Vaadin.

Java Spring Boot Jmix Vaadin Framework JPA EclipseLink PostgreSQL Liquibase Formio Flowable BPM Gradle Git

Freelance Web Developer

ColmeCopia

Jan 2025 - Dec 2025 (11 months)

Designed and developed a complete web application with Next.js, React, and TypeScript, including an authenticated dashboard and catalog management. Implemented PostgreSQL with Supabase, configuring Row Level Security (RLS) to separate public access and administrative operations.

Next.js React TypeScript Supabase PostgreSQL RLS Authentication Storage

Android Developer / Analyst

Alten

Jan 2023 - Jan 2025 (2 years)

Developed and maintained SgaApp, an Android application for document presentation and interaction with public administration systems. Implemented new features, validation rules, and backend integration.

Java Android Studio Git

Android Developer

Full-On-Net

Jan 2023 - Dec 2023 (11 months)

Implemented new features in Tivify, including push notifications, deep links, and Firebase integration for event tracking and campaigns.

Kotlin Java Firebase

Android Developer

Movetia

Jan 2022 - Jan 2023 (1 year)

Developed features for banking client Android applications, including projects for CaixaBank, integrating application logic and backend services. Participated in maintenance, incident resolution, and continuous product evolution in Agile teams.

Kotlin Java Git