Freelancer profile translated to English.
Back to original languageAbout Juan Isidoro
Developing complete digital products, from architecture to deployment. I work with TypeScript, Node.js, and Next.js applying DDD, CQRS, and Event Sourcing in projects where scalability and long-term maintainability matter. I prefer to start with a solid MVP and scale progressively, which reduces risks and allows for validation before investing more. I have built my own SaaS from scratch, which gives me product vision in addition to technical expertise. I integrate well into small teams and startups where every technical decision has a real business impact. If you need someone methodical, who understands the complete system and delivers autonomously, we can work together.
Spanish
Native or bilingual
English
Conversational
Remote only
Primarily works remotely
Experience
- RemotoFounder and Full-Stack Developer FreelanceMarch 2020 - Today (6 years and 3 months)→ Trajectory that began with WordPress and WooCommerce development for local clients, creating custom plugins, integrations with shipping APIs (Sendcloud), and synchronization systems between platforms.→ Progressive evolution towards microservices and event-driven architectures, motivated by real product needs at CTY, applying DDD, CQRS, and Event Sourcing with PostgreSQL and Meilisearch as a fast read layer.→ Development of SecureCode HQ: secrets management platform with MCP server for Claude Code, TOTP/2FA, KEK/DEK encryption with Google Cloud KMS, and SDK published on npm.→ Development of MyEasyStack: PaaS for developers on Coolify in Hetzner with multi-tenant provisioning via cloud-init, Caddy reverse proxy, and Netdata monitoring.→ Creation of Chrome extensions with integration via MCP protocol: SecureCode HQ extension and OpenBrowser Console, a tool for recording console errors for frontend development workflows with AI agents.→ Definition of system contracts, reusable patterns, and repeatable frameworks as a regular practice to improve maintainability and development speed.→ Complete CI/CD with GitHub Actions, DNS and email infrastructure with Cloudflare, Migadu, and Resend, and multi-product monorepos.
- Rotork Controls IberiaMaintenance TechnicianJune 2016 - June 2018 (2 years)Algeciras, Spain→ Responsible for field work, preventive and corrective maintenance, and new installations of motorized valves in the Campo de Gibraltar industry.→ Development of automated reporting tools in Excel with VBA and CRM integrations for operational planning.
- RemotoSelf-taught TrainingJune 2018 - March 2020 (1 year and 9 months)Algeciras, Spain→ Transition period towards web development with intensive training in WordPress, PHP, HTML, CSS, and JavaScript.→ First own web projects and for the immediate environment, laying the foundation for future work as a freelance developer.→ Beginning of training in SEO, digital marketing, and web process automation.
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Education
- Industrial Technical EngineeringHigher Technical School of Engineering of Algeciras, University of Cádiz2015Técnica Industrial
- SOLID PrinciplesPrincipios SOLID