404 // Software crafters

404 // Software crafters is the listing for 404 Crafters, a studio that designs, builds and improves software products. It organises its work around small cross-functional teams using Extreme Programming, and it places a strong weight on a learning culture and on technical practice.

What 404 // Software crafters offers

• New product builds — discovery work to match a product plan to business goals, then iterative delivery of web and mobile apps.
• Modernisation of existing code — refactoring, breaking systems into modules and adding test automation so the software can evolve.
• Embedded engineers — developers who sit inside a client's team, raising output and coaching through pairing sessions.
• AI work — agents, automations and LLM integrations built on techniques such as RAG and MCP, with evaluation harnesses for production use.

Who it works with

Clients shown include Digital House, an edtech start-up active in seven Latin American countries, plus Culti for farm administration, Portal Expensas for condominium management and Pulsar, an Argentine government education platform.

Key facts

• Practices: Extreme Programming, pair programming, test automation
• Platforms: web, Android, iOS