Fullstack Developer & IT Specialist
Websites, apps and AI automation for your business.
Whether you run a gym, a restaurant, a hair salon, a clinic or a shop: I build your website and app, automate your day-to-day with AI, and handle the technical side —systems, Windows, Linux and networks— so everything just works. One contact, from briefing to result.
Available for businesses in any sector and agency collaboration across CH/LI.
Basel, Switzerland
EN C1 · DE B2 · ES Native
Web · Apps · IT
Services
What I Build for Business
Solutions that translate technical complexity into measurable business value — deployed and maintained with enterprise-grade reliability.
Cloud Transformation
Reduce costs. Strengthen security.
Migrate your organization to Microsoft 365 and Azure. Modern identity management with Entra ID, automated device lifecycle with Intune & Autopilot, and enterprise-grade security — without the overhead.
Custom Business Apps
Digitize your workflows. Eliminate friction.
Purpose-built web applications and AI-integrated systems that replace manual processes with fast, installable, multilingual products. From operations platforms to autonomous audit pipelines — built to score 100/100 and ship on schedule.
→ Case: Dnamar Facility Services — real-time operations platform across 3 languages.
Hybrid Networking
Reliable connectivity across every site.
Enterprise network design for multi-site businesses: VLAN segmentation, VPN configuration, DNS/DHCP, and hybrid identity — ensuring every team stays connected and every device stays inside your security perimeter.
Let's Optimize Your Business
Basel, Switzerland · Liechtenstein · Remote
Verified credentials
Accredited training, not self-declared
Five credentials behind the work: AI development, full-stack engineering, and the networking foundation. Each card opens the original certificate as a PDF.
Agents that act, not just answer
AI Agent Programming
BIG School · MoureDev
Designing and shipping autonomous AI agents with tool use, memory, and orchestration — the core of the systems I put into production.
From prompt to a system that decides
AI: From Zero to Agents
BIG School
The full path from prompting to agent architectures with RAG and memory, applied to real products in production.
AI that ships and stays shipped
AI: From Zero to Production
BIG School
AI-assisted full-stack development through to deployment: faster cycles, smarter code generation, and systems that hold up over time.
The network under control, by design
CCNA — Routing & Switching
Cisco Networking Academy
Formal certification in enterprise networking: switching, routing, VLAN, VPN and security — the solid ground the software runs on.
Software engineering from the ground up
Software Application Development
IES · Spain
Higher diploma in software development: programming, databases, and application architecture — the formal foundation of the full-stack profile.
I cover the full spectrum: from network to interface
Full-stack development and AI at the centre; networking and infrastructure as the base.
Stack
Technology Stack
Enterprise-grade expertise — from hybrid identity to cloud-native automation.
Competency Radar
Career
Experience
From Swiss integration to production AI platforms — enterprise IT delivery across Switzerland and international environments.
IT & AI Solutions Engineer
Self-Employed · Freelance
Switzerland
- ›Running cloud-based platforms focused on availability, clean technical architecture, and reliable operations
- ›Building helpdesk and workflow systems with SLA-aligned processes, role-based access control, and structured service logic
- ›Translating infrastructure and operational thinking into modern SaaS environments — automation and continuous optimization
- ›Active production portfolio: Ticket System, MatchPoint AI, Invoice Auto, HelpDesk AI
Operations & Logistics Technician
Servo Personal & Treuhand GmbH · CareJob
Basel, Switzerland
- ›Swiss integration phase — temporary roles in logistics, production, and construction to establish professional roots in Switzerland and deepen German language skills
- ›Operated in structured Swiss environments with high standards for reliability, precision, and clean operational execution
- ›Developed service orientation, professional discipline, and communication across diverse client-facing contexts
- ›Throughout this period: continued building technical projects independently — HelpDesk AI platform, freelance IT work, and SaaS development
Technical Support Specialist & Systems Administrator
Lutelco Facilities
Zaragoza, Spain
- ›Managed enterprise IT for 500+ users across 2nd/3rd-level support
- ›Administered Microsoft 365 and Active Directory environments
- ›Network troubleshooting: TCP/IP, DNS, DHCP, VLAN, VPN
- ›Supported VMware vSphere virtualization infrastructure
Help Desk Support Specialist
Nationale Nederlanden Bank
Zaragoza, Spain
- ›1st-level IT support in ITIL-based enterprise environment
- ›Incident management, SLA tracking, and user account administration
- ›Microsoft 365 application support and remote troubleshooting
Systems & Network Engineer
NSC — Networks, Systems & Communications
Spain
- ›Operated and maintained network and systems infrastructure
- ›Managed virtualization environments and system monitoring
- ›Provided infrastructure support across multiple client sites
Web Developer & Application Support
Freelance / Agency
Spain
- ›Built and maintained web applications with MySQL database backends
- ›Provided technical support and troubleshooting for deployed systems
Fiber Optic & Datacenter Technician
Vodafone (Contractor)
Spain
- ›Deployed fiber and copper cabling infrastructure in datacenters
- ›Rack installation and network infrastructure maintenance
Work
Projects
Production systems. Real clients. No mock data.
Star Project — Live in Production
Aura AI — AI-Powered SaaS Infrastructure for Revenue Intelligence
Multi-tenant SaaS engineered for product management and commercial margin optimization. Enforces Row Level Security (RLS) with per-tenant PostgreSQL schema isolation — validated under concurrent write load with zero cross-tenant data leakage at any isolation level. A pre-algorithmic FinOps engine filters 82.4% of token context before any Anthropic API invocation, delivering a quantified, repeatable cost reduction per analysis cycle. An INSERT-only immutable audit schema provides complete DSG/nDSG traceability for every pricing decision. A 3-mode Chaos Engineering Lab (network partition · cold start · concurrent overload) validates 100% fault tolerance at Vercel edge nodes under simulated production failure conditions.
SME Standard Highlights
RLS + multi-tenant isolation: PostgreSQL Row Level Security enforced per tenant with zero shared-schema exposure — validated under concurrent write load.
Automated schema hardening: table-level security policies, service-role-only write paths, and revoked public schema access eliminate all privilege escalation vectors at the database layer.
Pre-algorithmic FinOps engine: 82.4% token context reduction before LLM invocation — quantified, repeatable cost saving per analysis cycle, not an estimate.
INSERT-only immutable audit log aligned with Swiss DSG/nDSG — tamper-proof traceability for every strategic pricing decision, compliant by architecture.
Aura AI — Revenue Intelligence
AI-Powered SaaS Infrastructure for product management and commercial margin optimization. Enforces per-tenant PostgreSQL Row Level Security with zero shared-schema exposure — validated under concurrent write loads with no cross-tenant data leakage. Automated schema hardening: table-level security policies, service-role-only write paths, and revoked public schema access eliminate all privilege escalation vectors at the database layer. Pre-algorithmic FinOps engine filters 82.4% of token context before any Anthropic API invocation — quantified, repeatable cost reduction per analysis cycle. INSERT-only immutable audit log aligned with Swiss DSG/nDSG provides tamper-proof traceability for every pricing decision. Chaos Engineering Lab (3 failure modes) validates 100% fault tolerance at Vercel edge nodes.
D'NAMAR GmbH
Production platform for a Basel-based facility services company — live at dnamar.ch since April 2026. Full SMTP infrastructure migration from Resend to self-hosted Nodemailer (NOVATREND, port 465 SSL/TLS) — eliminating all third-party transactional email dependencies and ensuring Swiss DSG-compliant data residency for contact submissions. JSON-LD LocalBusiness structured data with explicit addressLocality Basel and areaServed: [CH, LI] drives targeted organic indexing for facility services searches across NW Switzerland. Trilingual SSG (DE/EN/ES), 100/100 Lighthouse across all four metrics, verified and indexed in Google Search Console.
WAAI SaaS — WhatsApp AI Agent Platform
Multi-tenant SaaS platform allowing businesses to deploy Claude-powered WhatsApp agents without code. Full 9-phase implementation: SSR auth, tenant isolation, agent lifecycle, RAG knowledge base, WhatsApp webhooks, lead capture, AI↔human handoff, analytics, and billing readiness. RAG pipeline: document chunking, OpenAI embeddings (text-embedding-3-small, 1536-dim), pgvector semantic search. AI↔human handoff system with async state control and RBAC (owner/admin/agent_manager/human_agent). 100% RLS coverage across all tables with workspace-scoped policies — zero secrets exposed client-side. Validated with 52 automated smoke tests (0% failure rate), 4 health checks, and a full E2E runbook. Factory/Strategy pattern for hot-swap embedding provider with zero code changes.
HelpDesk AI + OmniCommand
DSG/nDSG CompliantEnterprise helpdesk platform with MCP-powered CI/CD hardening. Deployed Zero-Trust CORS: dynamic middleware replacing wildcard (*) policies, validating Origin against ALLOWED_ORIGINS env var. Defensive Bash CI/CD scripts eliminate silent-failure pipelines by isolating http_code, headers, and payloads. Supabase multi-schema isolation (.schema('helpdesk') vs public) prevents cross-schema data leakage. Vitest integration with high-fidelity Supabase/Resend mocks — 8/8 tests green, --passWithNoTests permanently removed. Zod structural validation (z.infer<>) eliminates any-typed MCP tool inputs. MCP Server on Vercel SSE exposes 7 autonomous AI tools with strict LLM/DB separation. Multi-tenant RBAC, automated SLA breach detection, trilingual (DE/EN/ES), Swiss DSG/nDSG compliant.
Ticket Auditor — Autonomous CI/CD
Fully autonomous audit pipeline. GitHub Actions fires hourly → Vercel Edge Function queries Supabase → AI analysis via MCP → Resend delivers branded executive HTML reports. Claude reads live business context through 7 MCP tools without direct DB access. Full audit cycle in under 11 seconds with zero human intervention. Service-role secured. Swiss DSG aligned.
MatchPoint AI
AI-powered job matching platform. Candidates upload their CV and Claude AI extracts their full profile automatically, then matches them against live job offers using 4-dimensional scoring: Hard Skills, Experience, Culture Fit, and Logistics. Recruiters only see candidates above 90% match — alerts via WhatsApp and email.
Invoice Auto
Freelancer invoice automation SaaS. Upload a receipt photo or PDF and Claude Vision AI extracts all fields — client, amount, date, VAT — and generates a professional invoice ready to send. No manual data entry. Multi-currency (EUR/CHF), PWA installable, fiscal validation for Spain and Switzerland.
Parcel Tracker SaaS
End-to-end logistics SaaS for international courier operations. Three-tier RBAC (Admin / Staff / Client) with automatic role assignment on registration. Full package lifecycle (Arrived → Ready → Picked Up) with Canvas API digital delivery proof — in-browser signature capture and photo upload. Multi-channel notifications on every status change via Twilio WhatsApp Business API and Resend branded email. Analytics dashboard: revenue by period, package volume, top clients. AI-audited security: JWT + bcrypt + Helmet, Zod validation on all API inputs, zero exposed credentials in git history. Public zero-login tracking at /track/[number] — SEO-friendly, fully translated. Native 6-language i18n (DE/EN/ES/FR/IT/PT) with zero page reload on switch. PWA installable.
NATURÆ Cosmetics — Swiss Handmade Skincare
E-commerce and PWA for a Basel-based handmade natural cosmetics brand, built compliance-first under Swiss VKos cosmetics regulation: no payment gateway wired until each product's Product Information File (PIF) is certified, so the cart resolves to a WhatsApp order handoff backed by an immutable, RLS-protected order history instead of a checkout flow. Installable on Android and iOS via a hand-written manifest and same-origin-only service worker (no next-pwa, icons generated on-demand with next/og) — the origin filter specifically prevents Supabase auth/cart responses from being cached and replayed across users on a shared device. Trilingual DE/EN/ES catalog with a per-user Supabase-synced cart (local+remote merge on login), product galleries with zoom, and recommended/recently-viewed strips from local history. Nav verified sticky and overflow-free with real headless-Chromium testing across six Android viewport widths (320–430px).
Client Reviews
What Clients Say
Extremely satisfied! Working with Vidal was straightforward and professional. The website was implemented exactly according to my vision and looks modern and high-quality. I especially appreciate the fast communication and the reliable work. I can absolutely recommend him!
Nadjib Rasuly
CEO · D'Namar GmbH · Basel, Switzerland
From the first briefing to go-live, every technical detail was handled with precision and care. The trilingual platform Vidal built is fast, reliable, and exactly what our operations needed to work professionally.
Maritza Najip
Operations Manager · D'Namar GmbH · Basel, Switzerland
Contact
Let's Connect
Available for full-stack projects, AI integration, and agency collaboration across Switzerland and Liechtenstein.
Vidal Reñao Lopelo
Fullstack Developer & IT Specialist
Web · Apps · IA · Sistemas
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© 2026 Vidal Reñao · Basel, Switzerland