Senior Backend Engineer – AI

Responsibilities

• Design and build extensible backend systems that support flexible configurations for different customers and content types.
• Develop infrastructure that interfaces cleanly with LLMs, enabling prompt engineering, context injection, and modular evaluation workflows.
• Build tooling and platforms that enable fast iteration by AI engineers and analysts, including declarative pipelines, parameterized jobs, and reproducible experiments.
• Prioritize ease of deployment, integration, and testing, both for internal teams and external partners.
• Collaborate closely with product, data, and policy teams to translate nuanced safety needs into scalable, maintainable software systems.

• 5+ years of experience in backend systems or infrastructure engineering.
• Strong software engineering skills in Python, Go, Java, or equivalent.
• Experience designing scalable APIs, backend systems and data pipelines.
• Familiarity with LLM-based systems (e.g., prompt management, context formatting, batch inference, prompt-tuning workflows).
• Strong understanding of cloud-native infrastructure (e.g., AWS, Lambda, Kubernetes, CI/CD pipelines).
• Passion for building systems that unlock velocity and experimentation for cross-functional teams.