Principal AI Engineer (8902)

Key Responsibilities

• Architect & Code: Lead the end-to-end design: Data Assets? Ontology/Dual-graph? Financial DSL? LLM/Tool Gateways? Agent? UX. Write clean, production-grade Python.
• Maintain Defensibility: Author ADRs/RFCs and maintain regulatory traceability matrices (T-controls) defensible to compliance and auditors.
• Enforce Quality & Safety: Implement strict capability boundaries, human-approval gates, and immutable audit chains.
• Drive Engineering Excellence: Enforce high testing thresholds (?90% coverage), automated CI quality gates, and comprehensive OTEL observability.

Required Qualifications

• Core Python Mastery: Hands-on experience with FastAPI, asyncio, pytest, type hints, and strict monorepo discipline.
• AI Agent Orchestration: Deep understanding of LLM/tool gateways, SSE & WebSocket streaming, agent-platform contracts, and agent SDKs.
• Responsible AI & Governance: Experience building capability boundaries, approval gates, and audit chains mapped to a graph.
• AI Fluency: Practical mastery of Cursor agent skills, MCP servers, prompt engineering, and CLI automation (GitLab/Jira).
• Testing & Observability: Strong UAT/BDD test discipline (?90% coverage) and OTEL observability (Phoenix, Grafana, structured logging).
• Cloud Platform: Production experience with AWS.

Desired Qualifications (Nice-to-Haves)

• Graph & Data Arch: Neo4j knowledge graph design (dual-graph, Cypher, Aura, GraphRAG), ontology modeling (RDF/SHACL, SKOS, financial taxonomies), and conceptual/logical data contracts.
• DSL & Formal Methods: Designing and executing Domain-Specific Languages (grammar, validation, executors) and high-assurance formal methods (Alloy, TLA+).
• Security & Infrastructure: PBAC/RBAC, JWT, SAST hygiene, Snowflake (key-pair, schema sync), AWS EKS, Helm, and GitOps (ArgoCD).
• Multimodal AI: Voice pipelines (STT/TTS via Bedrock or OpenAI) and WebSocket-based advisory modalities.
• Docs & Automation: Diataxis framework, AGENTS.md hierarchies, and CI quality gates (Bandit, Radon, Angular commit conventions).

Desired Experience

• Regulated FinTech: A proven track record of productizing AI advisors in regulated financial environments, managing the critical flow: disclosure? capability refusal? human approval? compliance audit chain.