AI Engineer (Mid-Level)

San Francisco on site Until 8/21/2026 2+ years exp First posted June 4, 2026 Last posted June 4, 2026
Job description

About the Role

Join a fast-moving, pre-seed-backed AI startup building the next generation of agentic systems that automate complex, multi-step workflows across regulated and enterprise domains — including healthcare, legal, fintech, logistics, and compliance. As a mid-level AI Engineer on the core product team, you'll own production LLM-based services end-to-end, collaborate closely with founders and product, and ship features that deliver measurable impact for real users.

What You'll Do

  • Design, build, and maintain agentic systems that automate complex, multi-step workflows across regulated industries.

  • Own production retrieval-augmented generation (RAG) pipelines and retrieval infrastructure, including vector databases, embeddings, and indexing for domain-specific search at scale.

  • Implement multi-agent orchestration, tool-calling, memory, and reasoning components to deliver robust AI-driven user experiences.

  • Develop evaluation and safety infrastructure to measure model performance, surface regressions, and enforce enterprise-level trust and reliability.

  • Ship full-stack AI products from MVP to enterprise-grade — designing APIs and data models, writing frontend and backend code, and operating production systems with CI/CD, monitoring, and testing.

  • Collaborate with founders, product, and design to prioritize work, define success metrics, and iterate based on user feedback and telemetry.

What We're Looking For

Must-haves:

  • 2–8 years of software engineering experience with demonstrated delivery of shipped user-facing or backend products.

  • Practical experience deploying LLMs or LLM-based services in production, including prompt design, orchestration, and tool integration.

  • Proficiency across the stack: Python plus TypeScript/React (or equivalent), cloud platforms (AWS or GCP), and relational or NoSQL databases.

  • Working knowledge of RAG patterns, vector databases, embeddings, and retrieval pipelines, with sound judgment on when to apply each approach.

  • Experience building automated tests, evaluations, and monitoring for AI systems to ensure reliability beyond demos.

  • Experience designing API-driven, high-throughput systems and real-time product features.

Nice-to-haves:

  • Experience with agent or workflow frameworks (e.g., LangGraph, CrewAI) and orchestration tools (e.g., Temporal, Trigger).

  • Familiarity with fine-tuning, parameter-efficient tuning, or multi-modal model integration.

  • Background building multi-tenant or enterprise-ready systems, or prior experience in regulated industries such as healthcare, fintech, or legal.

Compensation & Benefits

  • Salary: $180,000 – $400,000 USD annually (reflecting a wide band across base and equity depending on experience).

  • Early-stage equity in a venture-backed startup.

About this role

Summary

Design, build, and maintain AI-driven systems, APIs, and integrations for enterprise products.

Job title

AI Engineer (Mid-Level)

Experience level

2-8 years

Minimum experience

2+ years exp

Industry

software

Location requirements

San Francisco, no remote work allowed

Salary

$180k–$400k

Management role

No

Skills & keywords

Required skills

PythonTypeScriptReactAWSGCPrelational databasesNoSQL databasesprompt designorchestrationAPI design

Preferred skills

agent frameworksworkflow frameworksfine-tuningmulti-modal modelsregulated industries

Specializations

LLMvector databasesretrieval pipelinesAI systems
Locations

Structured locations inferred from the posting.

San Francisco, CA, USA

On-site City