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Clera

AI Engineer

San Francisco
Salary
$180,000 - $220,000 annually
Level
Mid
Work type
On-site · San Francisco

Not stated in the posting: visa.

Open. First seen 19 October 2026.

Apply on the company's site →

About the role

About the Role

Join the founding engineering team at an early-stage AI company developing a foundational model from scratch with a novel architecture, rather than fine-tuning existing models. This hands-on role contributes to core model development as well as practical, production-ready LLM systems.

What You'll Do

  • Build and improve foundational models across training, reinforcement learning, and model architecture.
  • Develop and ship production LLM applications, including agents, retrieval-augmented generation pipelines, or model-serving systems.
  • Create evaluations, benchmarks, and quality monitoring for LLM systems.
  • Contribute as a hands-on individual engineer across model development and application work.

What We're Looking For

  • One to five years of professional engineering experience.
  • Practical experience building foundational models across the model-building pipeline, including training, reinforcement learning, and architecture.
  • A track record of building and shipping production LLM applications.
  • Strong Python skills and hands-on experience with an ML framework such as PyTorch.
  • Experience evaluating LLM systems through evaluations, benchmarks, or quality monitoring.
  • Interest in a ground-level individual contributor role.

Compensation & Benefits

Base salary range: $180,000 to $220,000 USD annually.

Location

On-site in San Francisco, California. Candidates should be based in the San Francisco Bay Area or willing to work on-site in San Francisco.

What this role asks for

Particular to this role

RAG

Rare in Clera's other 299 open postings.

Standard for data science / ML roles

LLM · Machine Learning · PyTorch · Python

Common in data science / ML postings at any company.

Compared with Clera's other open jobs.

The team: Engineering HIRES STEADILY

This role is one of 316 open in Engineering. 250 were posted in the last 30 days and the oldest in March: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

LLM (146 of 316), TypeScript (136 of 316), Python (134 of 316), React (110 of 316), Machine Learning (75 of 316), PostgreSQL (59 of 316), JavaScript (56 of 316)

OTHER ROLES ON THIS TEAM

From the team and dates on Clera's own job board.

Salary context

48 other open postings titled AI Engineer state a salary: median USD 150,000 to USD 222,500 a year.

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