5+ years building production-grade backend systems or developer-facing tools. Hands-on experience with AI/ML technologies such as LLM APIs, prompt engineering, or AI agent development. Proficiency in Go (preferred), Rust, Java, or Python with strong software engineering fundamentals. Experience designing and building distributed systems, microservices, or platform infrastructure. Strong understanding of cloud-native systems (AWS, GCP, or Azure), APIs, and data stores. Solid grasp of CI/CD, automated testing, code review practices, and modern development workflows. Product-minded approach to building developer tools with focus on user experience and measurable outcomes. Excellent communication skills in remote, asynchronous environments. Ownership mentality with bias for action and iterative delivery. Comfortable working autonomously across distributed teams and navigating ambiguity.