Senior Ruby Engineer — Systems Architect & API Lead

Crossing Hurdles is seeking a senior software architect to design and lead robust Ruby and Rails systems in the United Kingdom. You will architect scalable services and APIs, drive performance optimization, establish quality standards, and guide teams toward technical excellence across projects.

Colleagues across product, data, and platform teams will rely on your mentorship to grow capabilities, deliver reliable deployments, and define best practices for testing, deployment, and maintainable