Senior Backend Engineer - Remote Spain (Cloud & HPC)

Flexcompute is a fast-growing startup redefining engineering simulation with ultra-fast computing and scalable backend platforms. We seek a Backend Software Engineer to design and implement scalable solutions for an advanced EM simulation stack. You will collaborate with EM and infrastructure teams, improve web APIs, and build hybrid cloud compute/storage for distributed workloads. The role emphasizes scalable backend services, containerized deployments, and robust Linux-based infrastructure, J…