Webook

WEbook.com is a writing community platform empowering writers, shaping future literary stars, and transforming the publishing world.

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Consumer Discretionary

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Founded 2007

13 open positions

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Prompt Engineer (LLM Systems, Evals & Safety)

4 months, 1 week ago

Jordan

Mid Level

Prompt Engineer

Software Development

Python TypeScript

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Webook

WEbook.com is a writing community platform empowering writers, shaping future literary stars, and transforming the publishing world.

Media

1-10

Founded 2007

View All Jobs 13

Description

Author, refactor, and chain prompts for a range of LLM tasks.
Design and maintain system, tool, and policy instructions.
Create offline and online evaluation harnesses, including rubrics, golden sets, and metrics.
Build and manage prompt libraries with versioning, A/B testing, and telemetry.
Reduce hallucinations through verification, constrained decoding, and tool use.
Implement safety checks for jailbreaks, prompt injection, content policy, and PII handling.
Partner with engineers to integrate prompts into production features.
Own evaluation and continuous improvement for LLM feature quality, safety, and cost effectiveness.

Requirements

Demonstrated prompt design experience across multiple task types and models.
Experience building evaluation datasets and automated scoring for accuracy, faithfulness, utility, cost, and latency.
Familiarity with retrieval-augmented generation concepts and tool/function calling.
Strong scripting skills in Python or TypeScript for data preparation, evaluation, and analysis.
Ability to translate business goals into measurable prompt specifications.
Experience with LangChain, LLM orchestration, vector stores, and rerankers is a plus.
Knowledge of safety tooling and red-teaming techniques is a plus.
Experience with experiment platforms such as feature flags and A/B tests, as well as analytics, is a plus.

Interested in this position?

Apply directly on the company website

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