Freelancer profile translated to English.
Back to original languageAbout David
I am David Espinoza, founder of STRYV.
I build Digital Operating Systems for SMEs and entrepreneurs. Custom proprietary software with a modern stack: React, Vite, Tailwind, Supabase, Stripe, Netlify.Full ownership of the code.
Architecture → Implementation → Optimization.
Verticals where I have built
Manufacturing industry, hospitality, wellness and health, professional services, visual configurators, beauty and aesthetics, content platforms, digital real estate.
What I build
- Vertical marketplaces with split payments, messaging, reputation, and moderation
- Custom ERPs with multi-role, inventory, accounting, orders, and routes
- SaaS platforms with authentication, subscriptions, gating, and integrated AI
- Multi-site order systems with payments and notifications
- Interactive visual configurators for customizable products
- Editorial content platforms with a carefully crafted emotional identity
- End-to-end digital services with separate client and admin panels
- Multi-role as the backbone
I don't build single-user apps. I build operating systems with real organizational hierarchy: admin, operators, clients, intermediate roles, differentiated views, granular permissions.
How I work
Proposals with closed scope. Milestone payments. Direct communication in Spanish or English. Realistic deadlines. Post-launch support.
My client:Companies that need to digitize real processes with a modern stack, or entrepreneurs launching a new digital product (SaaS, marketplace, platform) who want their own architecture.
Spanish
Native or bilingual
English
Fluent
Can work on-site
Valencia (up to 50km), Valencia (up to 50km), Barcelona (up to 50km)
Experience
- StryvFounder and Digital Systems ArchitectJanuary 2022 - Today (4 years and 7 months)Founder of STRYV, a digital architecture agency specializing in building Digital Operating Systems for SMEs and entrepreneurs.I build custom proprietary software with a modern stack (React, Vite, Tailwind, Supabase, Stripe, Netlify): vertical marketplaces with split payments, ERPs with multi-role and inventory, SaaS platforms with authentication and subscriptions, multi-site order systems, visual configurators, and editorial content platforms.I integrate AI (Claude API) into real operational flows: classification, generation, summaries, and automation where it adds value.Verticals served: manufacturing industry, hospitality, wellness, e-commerce, professional services, editorial content, product configurators.I work with closed-scope proposals, milestone payments, and full code ownership for the client.
- Proyecto independiente / Bitcoin Mining OperationsTechnical Infrastructure OperatorJanuary 2021 - Today (5 years and 7 months)Operation of technical infrastructure with automated monitoring systems, three-phase energy management, and resource optimization. Building efficient operational processes in connected industrial hardware environments and remote performance monitoring.
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Education
- Professional Course in Digital BusinessSpencer Hoffman Online2024Curso Profesional en Negocios Digitales
- Bachelor's DegreeTecnológico de Monterrey2021Licenciatura