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Jonatan Villalba

@jonatanvillalba

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I build high-performance enterprise e-commerce storefronts with Angular, React, Next.js, and SAP Spartacus.

Argentina

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What I'm looking for

I'm open to remote Senior Frontend or Full Stack roles across US and EU time zones, where I can build enterprise e-commerce products, lead technical architecture, improve performance, and create reusable systems.

At QUBIK COMMERCE, I've improved SAP Composable Storefront performance by 35% and co-created private NPM libraries that now accelerate every new e-commerce project.

I've led Angular and Spartacus modernization projects, including a migration from Spartacus 1.5 on Angular 8 to Spartacus 4.3 on Angular 12 with minimal user downtime. I define architecture, API contracts, CI/CD workflows, and maintainable standards that teams can carry forward.

I also build end-to-end web and mobile applications with React, Next.js, Node.js, and Angular, with a focus on SSR, accessibility, reusable design systems, and web performance.

Experience

Work history, roles, and key accomplishments

Senior Frontend Developer & Tech Lead

QUBIK COMMERCE

Mar 2021 - Jun 2026 (5 years 3 months)

Improved storefront performance by 35% on SAP Composable Storefront (Spartacus) and co-created private NPM libraries for new e-commerce projects. Provided technical leadership across Angular, Next.js, and React Native, including architecture, API contracts, CI/CD, and code review.

Senior Front-End Engineer

QUBIK COMMERCE

Mar 2021 - Jun 2026 (5 years 3 months)

Improved storefront performance by 35% on SAP Composable Storefront (Spartacus) and co-created the private NPM libraries every new e-commerce project at the company now starts from.

Technical leadership across Angular (v8 to v21), Next.js and React Native: architecture, API contracts, CI/CD and code review.

Key Achievements & Responsibilities:
Next.js & React: Played a key role in risk analysis

Tech Lead Front-End & Solution Architect

Onikom LATAM

Nov 2024 - Apr 2025 (5 months)

Designed and led a zip-code-based dynamic pricing feature inside SAP Composable Storefront (Spartacus): real-time catalog updates, warehouse assignment and zone-specific price lists, deployed on SAP Cloud (CCv2).

Key Achievements & Responsibilities:

Dynamic Pricing Architecture: Led the design and development of a core feature within SAP Composable Storefront for dynamic pricing based on user zi

Git Jira Angular NgRX Google Tag Manager Arquitectura TypeScript Bitbucket JavaScript SAP Commerce Cloud SAP Spartacus SAP Composable Storefront Confluence

Full Stack Engineer (Freelance)

JDV Developer

Mar 2018 - Mar 2021 (3 years)

Built custom end-to-end web and mobile applications for SMB clients with MERN and MEAN stacks, including secure Mercado Pago Checkout Pro integrations.

Key Achievements & Responsibilities:

Full Stack Architecture & Development: Designed and developed custom end-to-end web applications utilizing MERN (React.js) and MEAN (Angular 11+) stacks. Built dynamic user interfaces backed by scalable Node.j

MongoDB Application Architecture Angular Google Tag Manager AngularJS MySQL JavaScript Node RxJS PostgreSQL React

Education

Degrees, certifications, and relevant coursework

Universidad Nacional de José Clemente Paz (UNPAZ)

B.D. in Systems Analyst

2019 - 2023

Universidad Nacional de José Clemente Paz (UNPAZ)

Bachelor's Degree in Systems Analysis, Systems Analysis

2019 - 2023

Grade: 8.72/10

Pursued a degree in Systems Analysis, achieving a GPA of 8.72/10.

Polotic Misiones

Fullstack Web Development with Javascript and Python, COMPUTER AND INFORMATION SCIENCES AND SUPPORT SERVICES

2020 - 2020

Desarrollo fullstack con python fastapi y javascript react

Universidad Austral, Buenos Aires

Desarrollo del Lado del Servidor: NodeJS, Express y MongoDB

2020 - 2020

Curso desarrollado por la Universidad Austral, a través de la plataforma de la plataforma coursera.org, el programa del curso enseña las bases del desarrollo back-end con la utilización del lenguaje NodeJS, mediante la libreria Express y la conección a la base de datos NoSQL para la persistencia de datos con MongoDB, mediante la utilización de la libreria Mongoose