Freelancer profile translated to English.
Back to original languageAbout Jose Juan
I help startups and SMEs build solid digital products: from an MVP in 3 weeks to continuous maintenance of a production application.
My specialty is technical consulting: I review architectures, do code reviews, and help teams make informed technical decisions. I also build products from scratch when the project requires it.
Main stack: Next.js · NestJS · PostgreSQL · Prisma · TypeScript. Also experienced in Symfony/PHP, AWS, Kubernetes, and React Native.
I work remotely from Almedina (Ciudad Real). Available for one-off projects, maintenance retainers, and occasional consulting. Guaranteed response in less than 24 hours.
Portfolio: jjpg.dev
Spanish
Native or bilingual
English
Conversational
Remote only
Primarily works remotely
Experience
- Grupie Labs slFull Stack DeveloperHEALTH AND WELLNESSDecember 2025 - Today (8 months)Core product development using PHP Symfony and Next.js/React.• ● Implementation of AI-driven workflows to optimize the Software Development Life Cycle (SDLC).• ● Collaboration in a high-performance agile environment focused on continuous delivery.
- The Knot WorldwideFull Stack DeveloperCULTUREJanuary 2024 - November 2025 (1 year and 10 months)Led backend integration for cross-functional projects using HapiJS, GraphQL, and OpenSearch (Elasticsearch). Developed complex logic and custom resolvers in PayloadCMS, managing data flow through RabbitMQ queues. Led the migration of components to an internal design library under Next.js, improving UI consistency. Transitioned critical modules to React, implementing custom hooks and reusable components. Implemented A/B Testing and Feature Flags systems for real-time product validation. Introduced testing culture to the team using Jest (JS) and PHPUnit (PHP).
- Zankyou WeddingsSoftware EngineerNovember 2022 - December 2023 (1 year and 1 month)Automated B2B/B2C accounting export to Sage 50, eliminating manual processes and loading errors.Stabilized the post-acquisition software ecosystem, resolving the backlog of accumulated technical debt.Migration from legacy Google Analytics to Google Analytics 4
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Education
- Web Application DevelopmentCEAC2021