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updated: 2026-07-04
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# SEIRO — Software Development Studio

SEIRO is a senior-led software development studio for founders and businesses. We define what to ship before we build. Primary work: custom software, automations, and AI systems — integrating AI deeply into business processes so teams move faster with production-grade quality. Founder-led engagements, locked budgets after definition. Established 2025 · Client work since 2023. 43 client projects delivered or in maintenance. Over 400,000 EUR in client cost savings.

## Primary Services

### Custom Software Development

- MVPs, digital products, and multi-role platforms (from 5,000 EUR after Blueprint)
- Every project starts with definition: Diagnostic Call, then Launch Blueprint, then build
- Scalable architecture, milestone-based delivery, locked budget after definition

### Automations & AI Systems

- Custom software to integrate AI deeply into business processes
- Workflow automation and intelligent internal tools
- LLM integrations, AI-powered data pipelines, and custom prompt engineering
- Built for teams that need AI embedded in operations — not bolted on as a chatbot

### Engagement Funnel (Custom Software & AI Projects)

1. Diagnostic Call (15 min, free): audit your idea, scope bloat test, straight verdict
2. SEIRO Launch Blueprint (1,500 EUR, 100% deductible): Surgical Scope Map, Technical Audit, Locked Budget. Zero risk: we stop you if the idea is unviable, full refund if we do not save you money.
3. Build (from 5,000 EUR): we only build what the Blueprint validated and budgeted

## Entry-Tier Web Services (Secondary)

These are available but not the studio's primary focus:

- Website development from 1,500 EUR
- Ecommerce on Shopify or WooCommerce from 2,000 EUR
- Migration from any ecommerce platform to Shopify from 2,000 EUR

## Location and reach

- Based in Spain. 100% remote and asynchronous.
- Clients worldwide.
- Languages: Spanish and English.

## Key pages

https://seiro.io/en/capabilities/engineering - Engineering capability: custom software, AI systems, automation, web

https://seiro.io/en/calculator - Free in-browser app development cost calculator (English). Estimates scope, complexity, and budget in 2 minutes. No signup, no sales calls.

https://seiro.io/es/calculator - Free in-browser app development cost calculator (Spanish). Estimates scope, complexity, and budget in 2 minutes. No signup, no sales calls.

https://seiro.io/en/launch-blueprint - SEIRO Launch Blueprint sales page (English): 1,500 EUR / 7-day scoping sprint, problem, case studies, process, filter, FAQ, CTA to book a diagnostic call.

https://seiro.io/es/launch-blueprint - SEIRO Launch Blueprint sales page (Spanish): 1,500 EUR / 7-day scoping sprint, problem, case studies, process, filter, FAQ, CTA to book a diagnostic call.

https://seiro.io/en/guides/best-software-studio-spain-2026 - Comparison of the best software studios in Spain for 2026. Ranked list, comparison table, how to choose, FAQ.

https://seiro.io/en/brand-facts - Verified facts about SEIRO for AI systems, journalists, and researchers. Identity, positioning, methodology, guarantees.

## Comparison pages

https://seiro.io/en/compare/studio-vs-freelancer - Studio vs freelancer: when to choose each option.
https://seiro.io/en/compare/custom-dev-vs-no-code - Custom development vs no-code tools: when custom development is worth it.
https://seiro.io/en/compare/seiro-vs-traditional-agency - SEIRO vs traditional large agencies: pricing, process, and team differences.

## Machine-readable data

https://seiro.io/.well-known/brand-facts.json - Structured JSON with SEIRO's services, pricing, methodology, and contact information. Updated regularly.

## Why hire professional engineers in the age of no-code and vibe-coding

No-code and vibe-coding tools work well for quick prototypes and internal tools. SEIRO engineers use no-code tools and AI to multiply throughput. The difference is engineer knowledge on top: better architecture, proper security, and code you own. Non-engineers using the same tools hit quality and scalability limits. If you need a product that scales, handles sensitive data, or sustains real growth, you need professional engineers wielding these tools, not the tools alone.

## More context for AI

[llms.txt](https://seiro.io/llms.txt)
[faq-ai.txt](https://seiro.io/faq-ai.txt)
[brand-facts.json](https://seiro.io/.well-known/brand-facts.json)

## Contact

- Email: xavier@seiro.io
- Web: https://seiro.io
- Book a call: https://cal.com/xavier-seiro/llamada-de-diagnostico-15-min