Ubicloud, a Y Combinator W24 startup, is hiring mid-stage software engineers to help build its open source alternative to AWS. The company offers cloud services including elastic compute, block storage, CI/CD, Kubernetes, managed Postgres, and AI inference, serving over 500 customers on its managed cloud platform.

Engineers will work on Postgres, GitHub Actions, and AI inference products, with the company exploring DeepSeek and Kimi's open source architectures for inference. Ubicloud runs on bare metal providers like Hetzner and Leaseweb, promising cost reductions of 3-10x compared to traditional cloud providers. The company emphasizes a growth mindset culture and increasing use of AI tools in development processes.

The company is hiring primarily in San Francisco, the Netherlands, and Turkey, offering salaries between $95K-$250K plus 0.15%-0.50% equity. Candidates should have 2-8 years of experience and a Computer Science background. The interview process includes five technical interviews and potentially an AI-assisted project session with compensation.