Independent full-stack developer
FedericoKlikaylo
Websites, apps and AI systems, taken to production end to end.
Reply within 24 hours, in your language.
Services
What I build
Websites
A professional presence that loads fast and turns visits into inquiries.
Next.jsWordPressWix StudioOnline stores
Catalog, payments and shipping up and running, with marketing automation built in.
ShopifyKlaviyoPayment gatewaysMobile apps
iOS and Android from a single codebase, published to both stores.
React NativePWAApp Store · Play StoreAutomation and AI
WhatsApp bots, agents that answer on their own and processes that stop being manual.
WhatsApp APIClaude APICRMCustom software
Dashboards, CRMs and platforms shaped around your operation, not the other way around.
Node.jsPythonAWSProject rescue
Legacy code, critical bugs or a build someone left halfway: I pick it up and get it running.
AuditRefactorProduction launch
No price list: every project is quoted on its real scope. You get a closed proposal within 24 to 48 hours, with timeline, milestones and payment protected by Workana escrow.
Work
Shipped and running
A sample of systems in daily use. Details stay confidential; full references live on Workana.
- Shopify store with email automationEcommerce · 2025
- WhatsApp bot with AIRetail · 2025
- Mobile app for iOS and AndroidFintech · 2024
- Website with AI chatbot and CRMLegal · 2026
- Custom platform on Wix StudioCulture · 2025
- Real-time monitoring systemOperations · 2025
- Web app with live mapsLogistics · 2024
- Algorithmic trading backendData · 2025
Clients
In their words
Es un excelente desarrollador web, comprometido hasta con el mínimo detalle. Seguiré trabajando con él. Lo recomiendo totalmente. Excelente.
Muito competente, profissional e atencioso. Entregou todo o planejado e ainda ajudou a solucionar questões que surgiram. Foi muito comprometido com o projeto desde o inicio.
Quedamos muy satisfechos con los resultados. Es un profesional muy recomendable, que se comunica de forma clara y es comprometido en entregar lo que se solicita.
Muy agradecido a Federico. Ofreció una excelente atención al cliente y el realizó el trabajo con mucha profesionalidad.
Nada a reclamar. Ele entende do projeto que pega. Pontual. Super comunicativo e não te deixa na mão.
Lo recomiendo en un 1000%, muy responsable, preocupado y super puntual.
Rapaz muito profissional, entregou no prazo e fez um ótimo trabalho.
Method
How I work
Diagnosis
You describe the problem and within 24 hours you get a technical read with a proposed path. Free, no strings attached.
Closed proposal
Scope, timeline and price defined before anything starts. Payment is split into milestones and protected by Workana escrow.
Build
Visible progress every few days and a direct line to me, with no middle layers.
Delivery and backup
Code, access, domain and hosting in your name from day one. After launch, adjustments are covered.
Who is behind this
One technical mind
I am Federico Klikaylo, a full-stack developer based in Argentina. The person who reads your first message is the same one who designs, codes and ships your system. That means fast decisions, context that never gets lost and a single owner from start to finish.
- Argentina · GMT-3
- English, Spanish and Portuguese
- Working hours across US, Europe and LATAM
Care
Keep it alive
Building the system is half the job. The other half is keeping it fast, secure and predictable while your business grows. Three monthly maintenance plans, clear scope, no lock-in.
01
Stable
Your system in production, watched and up to date.
- Uptime monitoring with an instant alert if something goes down
- Security patches and dependencies kept current every month
- Automated backups with restores actually tested
- Up to 2 hours of fixes per month
- Reply within 48 business hours
02
Active
Maintenance plus small improvements, month over month.
- Everything in Stable, without the 2 hour cap
- 6 hours a month for the changes you ask for
- Priority reply within 24 hours
- Monthly performance and error report
- Speed and technical SEO review every quarter
03
Partner
A standing technical team, without hiring anyone.
- Everything in Active, with 16 hours a month
- Same day reply on a direct channel
- Quarterly roadmap and product calls
- A/B tests and conversion optimization
- Documented runbook and rollback always ready
Unused hours do not roll over. No lock-in: cancel whenever you want with 30 days notice. Monthly payment protected by Workana escrow.
Contact
Shall we build?
Tell me what you need, in the language you prefer. Concrete proposal within 24 to 48 hours.
Payment protected by Workana escrow.
Or leave the details here