Senior Full Stack Engineer — AI Voice Platform (Remote Spain)

VOICEB.ai is seeking a Senior Full Stack / Backend Engineer to help in developing their autonomous AI voice sales agent platform. The position requires strong experience in backend systems and Twilio infrastructure, along with advanced English proficiency. As a part of a small engineering team, you will design core systems, integrate with various CRMs, and shape architectural decisions.

This is a fully remote role based in Spain, offering competitive salary and equity options after your first year. Ideal candidates have a proactive mindset and can thrive in a fast-paced startup environment.