Senior AI Engineer (Core) - Supernal

Infinity • New York, NY

16h • Remote

About The Position

Supernal helps small-to-medium businesses hire their first AI employee. Our AI teammates are built using intelligent, agentic workflows deployed on a proprietary platform. We deliver working, value-generating AI Employees—not tools—that handle real business processes alongside human teams.

We’re hiring a Senior AI Engineer to build and ship the first generation of personalized, self-improving agentic workflows that users rely on daily. This is an “end-to-end” role: you’ll design the agent runtime, memory + retrieval systems, evaluation harnesses, and the product-facing surfaces that put agents in front of real users at scale.

You should be equally comfortable reasoning about distributed systems and data (latency, caching, queues, failure modes, cost) as you are with modern agent stacks (tool use, memory, RAG, multi-step planning, guardrails, and evaluation).

This role will partner closely with platform engineering to leverage and extend our core services (Django backend, event-driven systems, Kubernetes, observability) while owning critical parts of the AI application layer.

Requirements

• Strong software engineering fundamentals (design, testing, code quality, performance, security).
• Production experience deploying AI systems in front of users (not just notebooks/demos).
• Experience building agentic or LLM-powered systems with memory and tool use.
• Comfort working across application + infrastructure layers: APIs, background jobs, data stores, and deployment.
• Hands-on experience with at least one agent framework (or equivalent custom implementation), such as: LangChain / LangGraph LlamaIndex AutoGen / CrewAI-style multi-agent patterns
• Strong understanding of retrieval and vector search concepts: embeddings, indexing, filtering, evaluation.
• Overlap with Americas timezones for collaboration
• Reliable high-speed internet

Nice To Haves

• Experience with vector databases and/or search stacks (e.g., Pinecone, Chroma, Weaviate, Qdrant, pgvector).
• Experience designing evaluation systems (offline eval, human eval loops, production monitoring, prompt/model regression).
• Experience building voice/real-time systems (streaming, WebRTC or similar), and/or integrating speech (STT/TTS) into production applications.
• Experience building durable, long-running workflows (Temporal or similar orchestration engines).
• Familiarity with observability tooling (OpenTelemetry, Datadog, or similar).
• Experience shipping multi-tenant SaaS systems with strong privacy boundaries.

Responsibilities

• Ship user-facing agent experiences end-to-end: prototype → production → iteration based on real usage.
• Architect and implement stateful agent systems (workflows, tool calling, memory, retrieval, and human-in-the-loop where needed).
• Build voice features end-to-end where they unlock value: realtime speech agents, voice UI/UX, prompt/audio routing, and guardrails for safe tool execution.
• Build/own an evaluation harness: curated test sets + scenario suites automated scoring / rubric-based graders prompt/model/version tracking canary + A/B experimentation and safe rollout patterns
• Design data + retrieval pipelines: chunking, enrichment, metadata strategy hybrid retrieval (vector + keyword + structured filters) re-ranking, caching, and latency optimization multi-tenant safety and data isolation
• Integrate with and extend our platform primitives: Django/DRF/ASGI services async execution + queues + workflow orchestration PostgreSQL + pgvector Kubernetes deployments, autoscaling, and cost controls
• Establish engineering rigor for agents: observability (traces, spans, structured logs) reliability patterns (timeouts, retries, circuit breakers, graceful degradation) security/privacy controls for data access and tool execution

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed