Senior Frontend Engineer – Greenfield Product (Angular)

Freelance Contract | 9–12 months
Remote from Brazil

About the Project

Castle Tech GmbH is building a new standalone product from the ground up and is looking for an experienced Senior Frontend Engineer (Angular) to join us on a freelance basis for 9–12 months .

This is a high-impact engagement where you will influence system design, architecture, and product direction from day one. You will work closely with product and engineering to turn ideas into production-ready software while setting the foundation for how the system evolves.

If you enjoy building products from scratch, designing clean architectures, and taking ownership of meaningful projects, this contract will allow you to make a real impact.

What You'll Work On

• Build a new production-grade product from the ground up
• Design and implement a scalable frontend architecture using Angular and TypeScript
• Tak...