Years in backend
Building production systems
Integrations
Third-party APIs in production
Uptime target
On critical systems
Calls / month
Processed in production
Services
I work with startups, SMEs and engineering teams on backend, infrastructure and architecture projects.
REST APIs, backend services and system architecture. Clean code, scalability and production-ready from day one.
Payment gateways, provider APIs, webhooks and legacy systems. Any integration, normalized and reliable.
AWS, Terraform and Docker. Infrastructure as code, CI/CD and multi-environment setups built to engineering standards.
Code review, architecture decisions and technical mentoring. External perspective for teams that want to level up.
Real systems with real technical and business impact.
Backend API
REST API backend for a B2B travel booking platform handling real-time availability, reservations, and multi-provider integrations.
Infrastructure
Terraform-managed AWS infrastructure for multi-environment deployments with full observability and zero-downtime deploys.
Backend Systems
Unified gateway normalizing 8+ heterogeneous third-party APIs behind a single internal interface, with retry logic, circuit breakers, and full observability.
Professional track record in software engineering.
Freelance · Remote
Sidetours · Barcelona, Spain
The tools I use to build production systems.
Thoughts on architecture, backend systems, and engineering decisions.
Cómo diseñar un sistema de mensajería con RabbitMQ que no pierda mensajes, gestione errores correctamente y sobreviva a fallos de red en producción.
When to move work off the request cycle, how to structure jobs reliably, and the operational patterns that keep queues healthy in production.
Las funcionalidades de PostgreSQL que marcan la diferencia en sistemas de producción: índices, JSONB, CTEs, particionado y diagnóstico de queries lentas.
Contact
Available for senior engineering roles, technical consulting, and freelance projects.
Volkanic assistant