APIs Jobs - November 2025

CEF AI builds an AI-first data automation platform for secure, decentralized orchestration of agents that compute directly on encrypted data streams. Small team, high ownership. AI Innovator: prototype and ship production AI features quickly; extend multi-age…

Mithril is building a cloud compute platform for AI developers offering high-performance GPUs, clean APIs, and infra primitives for training, fine-tuning, and serving models. Backed by Sequoia and Lightspeed. Hiring for multiple onsite roles in the SF Bay Are…

Adora AI is hiring senior full‑stack engineers (backend- or frontend-focused) to join a 16-person, Seattle-based founding engineering team. Partnering with major brands, the company has hit initial PMF and is scaling. Day 1 expectations: ship code. Backend-fo…

Transfyr is building the API layer for science. The business model of science is broken, leaving meaningful innovation and novel treatments lost in translation. Funding alone isn’t enough to solve the problem; we need a new paradigm for making scientific know…

XSELL Technologies is building an Agentic Voice platform for healthcare combining ASR/TTS, LLMs, and deterministic orchestration. Roles: Senior Software Engineer focused on scalable backend systems, APIs, distributed services, cloud (AWS/GCP/Azure), CI/CD, an…

Mercanis is building the Agentic AI Procurement Suite to automate procurement and supplier management workflows. Backed by $30M+. Hiring in Berlin or Remote EU (role dependent). Roles: Engineering Manager (Berlin, hybrid) to lead a cross-functional product en…