Principal AI Architect & Engineer

Leorna is building a big-data platform that provides AI agents with persistent long-term memory. They are seeking a Principal AI Architect & Engineer to own the technical core of the platform, design the architecture, and implement the necessary tooling to enable a small team to operate efficiently.

Responsibilities:

• Architect and build the memory platform
• Design and implement the memory storage and retrieval layer: vector search, embeddings, context management, and the data pipelines that feed them
• Choose the models, infrastructure, and data stores the product runs on, and document the tradeoffs
• Stand up evaluation, benchmarking, and reliability practices so agent memory stays accurate and fast under load
• Take features from prototype to hardened production, often in the same week
• Run our agentic development stack
• Set up, configure, and operate OpenClaw, Hermes, Claude Code, and OpenAI Codex as first-class parts of our development workflow
• Build and maintain MCP servers, skills, agent configs, and local agent gateways the rest of the team uses daily
• Debug the unglamorous parts: config files, connection failures, tool permissions, context management, and make the setup reproducible for new hires
• Automate everything worth automating
• Design and build automation for CI/CD, testing, deploys, data pipelines, code review, and internal ops
• Identify recurring manual work across engineering and business functions and replace it with reliable agentic or scripted workflows
• Own the tooling decisions and make sure the automation is observable and maintainable, not a pile of brittle scripts
• Own the repos and engineering standards
• Manage multiple repositories across the platform, including structure, branching strategy, and cross-repo dependencies
• Handle real Git maintenance: branch hygiene, history cleanup, rebases and conflict resolution, submodules or monorepo tooling, tagging and release management, hooks, and access control
• Set and enforce code review standards, CI gates, security practices, and documentation norms
• Mentor engineers as we grow, and help shape technical hiring and the roadmap