? Location: Barcelona, Spain (Hybrid)
? Employment: Full-time

? About Our Client

Our client is building the AI platform that will redefine the future of hardware engineering.
Their product brings together system architecture, requirements, verification, and engineering workflows into one intelligent platform, helping engineering teams design and build the world's most advanced hardware systems faster and more efficiently.
From aerospace and defense to robotics, transportation, and semiconductor technologies, they're creating the AI infrastructure that will power the next generation of engineering.
This is an early-stage company where every engineer has a direct impact on the product, technology, and the future of the business.

? About the Role

As a Full-Stack Software Architect, you'll work directly with the founders to help build both the product and the engineering organization from day one.
This is far more than a senior engineering role. You'll define technical direction, influence architecture, establish engineering standards,



and make key product decisions while remaining deeply hands-on.
You'll own significant parts of the platform, work directly with customers, contribute to strategic decisions, and help build the engineering culture as the company scales.
If you're excited about solving difficult technical challenges, building AI-native products, and creating something from the ground up, this is an opportunity to make a lasting impact.

? What You'll Do
- Own product development from concept to production
- Design scalable system architecture and engineering standards
- Build modern full-stack applications and backend services
- Own infrastructure, cloud deployments, CI/CD, and observability
- Work directly with founders, customers, and industry partners
- Translate customer needs into product decisions
- Build AI-powered capabilities across the platform
- Help establish engineering processes, code quality, and development culture
- Contribute to hirin

📌 Full-Stack Software Architect (Barcelona)
🏢 OnHires
📍 Barcelona