harneXia

harneXia is a software and artificial intelligence lab operating from Buenos Aires, Argentina, and Barcelona, Spain. We design, build and run custom software, AI agents and process automation for small and mid-sized companies across Latin America and Europe, working in Spanish and English.

We combine more than 20 years of hands-on software engineering with a modern, mobile-first stack. Over that time we have worked with more than 100 clients in five countries and delivered more than 200 projects.

What we do:

• Custom software: business systems, web portals and integrations built around how your team actually works.
• AI process automation: repetitive, rule-driven work turned into monitored pipelines with human checkpoints.
• AI agents: vertical agents on your own data, connected to ERP, CRM and contact center, with RAG, evals, guardrails and human-in-the-loop governance.
• Legacy modernization: gradual, module-by-module migration without stopping the business.
• Mobile apps and PWAs.
• IT and AI consulting, and AI training for technical and non-technical teams.
• Tech teams: dedicated agile cells that act as your external IT department, staff augmentation with senior profiles, or help building your own in-house team.

Recent work includes a production automation platform for a sticker printing company, a lead capture system and in-house CRM for a real estate firm, and multi-tenant SaaS platforms with built-in AI assistants.

Our stack includes Next.js, React, TypeScript, Node.js, NestJS, Python, Go, PostgreSQL, Supabase, Redis, Kafka, Docker, Kubernetes, Claude, OpenAI and Gemini.

We are not a software factory. We own the whole system end to end, from the idea to deployment and whatever comes after, and you talk directly to the people who build it. Every milestone ships working and is approved by using it. If a project cannot be done well, we say so before we start.