Prompt Engineer

Internet Brands; El Segundo (CA); On-site; USD 60,000 - 105,000; Full time

Benefits offered by this job

Health insurance

401(k) with company match

PTO and holidays

Well-being coaching services

Job summary

Internet Brands is seeking a skilled Prompt Engineer to join our AI team in El Segundo, CA. The role focuses on designing, testing, and iterating prompts that drive our AI-powered products, ensuring high-quality, safe LLM outputs across customer-facing features and internal automation.

You will collaborate with product managers, engineers, and designers to maintain prompt quality, explore edge cases, and surface insights that improve model behavior and reliability.

Qualifications

• 2+ years in prompt engineering or a closely related AI/NLP role.
• Hands-on experience with working with LLMs and generative AI.
• Experience with testing and iteration methodologies.

Responsibilities

• Partner with product, engineering, and design to prototype and iterate prompts for production LLM applications.
• Test and iterate on prompts to improve accuracy, consistency, speed and output quality.
• Build prompt templates and libraries for reusable AI solutions across the organization.
• Document prompt patterns and findings for team knowledge sharing.
• Evaluate AI model outputs against quality criteria and implement improvements.
• Collaborate with engineers to integrate prompts into scalable pipelines.
• Monitor model behavior post-deployment and manage versioning and A/B testing.
• Research emerging prompting techniques and apply them.
• Contribute to red-teaming and safety reviews for LLM outputs.

Skills

Prompt engineering

LLM testing

Documentation

Clear communication

Creative problem solving

Agent orchestration

Tools

Agent orchestration

Structured output formatting

Job description

Prompt Engineer

We’re looking for a skilled Prompt Engineer to join our AI team and shape how our products communicate with large language models. You will sit at the intersection of linguistics, engineering, and product — crafting the instructions that make AI genuinely useful. You have a genuinely curious, inventive mindset — you explore model behavior with a habit of probing edge cases, questioning assumptions, and regularly surfacing insights the team didn’t know to look for.

Overview

As a Prompt Engineer, you will design, test, and iterate on prompts that drive our AI-powered products. Working alongside product managers, engineers, and designers, you’ll be responsible for the quality, consistency, and safety of all LLM outputs — from customer‑facing features to internal automation pipelines.

Responsibilities

• Partner with product, engineering, and design to rapidly prototype and iterate on prompts for production LLM applications across diverse use cases. Turn around prompt revisions within tight cycles, maintaining quality without sacrificing speed.
• Test and iterate on prompts systematically to improve accuracy, consistency, speed and output quality.
• Build prompt templates and libraries that enable reusable, scalable AI solutions across the organization.
• Document prompt patterns, techniques, and findings for team knowledge sharing.
• Evaluate AI model outputs against quality criteria and implement improvement strategies.
• Collaborate with engineers to integrate prompts into scalable, reliable pipelines.
• Monitor model behaviour post‑deployment, implement versioning and A/B testing strategies and respond to regressions or edge cases.
• Research emerging prompting techniques and apply them.
• Contribute to red‑teaming and safety reviews to identify risks in LLM outputs.

Requirements

• 2+ years of hands‑on experience in prompt engineering or a closely related AI/NLP role with significant focus on working with LLMs and generative AI; demonstrated expertise in prompt engineering.
• Hands‑on experience with tool‑calling patterns, function routing, and structured output formatting in the context of agent orchestration.
• Systematic testing and experimentation methodologies and iteration.
• Creative problem‑solving to find innovative solutions using AI.
• Understanding of token economics, context windows, and model limitations.
• Strong written communication skills — clarity and precision are your superpowers.
• Ability to document processes and communicate technical findings to non‑technical stakeholders.
• Comfortable working in‑office five days a week in a fast‑paced, collaborative environment.

Nice to Have

• Prior work in a product‑led or SaaS environment.
• Experience collaborating with clinicians, medical writers, or editorial teams in a publishing setting, translating domain expertise into precise, compliant LLM instructions.

At Internet Brands, we carefully consider a wide range of factors when determining compensation, including your background and experience. These considerations can cause your compensation to vary. We expect the compensation for this role to range from $60k - $105k and depend on your skills, qualifications, and experience. We encourage all interested candidates to apply.

In addition to our awesome culture, we offer a comprehensive benefits package designed to support the health and well‑being of you and your family. Our benefits include health insurance options such as medical, dental, and vision coverage, flexible spending accounts (FSA) for medical and dependent care, short‑term and long‑term disability insurance, and life and AD&D insurance. We also provide a 401(k) retirement savings plan with a company match, paid time off (PTO), paid holidays, commuter benefits as well as access to our Employee Assistance Program (EAP) and well‑being coaching services. In addition, employees can take advantage of voluntary benefits such as home, auto and pet insurance, and discounted legal and financial services. For more details, feel free to inquire during the interview process.

Internet Brands®, headquartered in El Segundo, Calif, is a fully integrated online media and software services company focused on four high‑value vertical categories: Health, Automotive, Legal, and Home/Travel. The company's properties and platforms include the WebMD, Medscape, and Henry Schein ONE networks, which are the global leaders in their markets; Nolo, Avvo, and Martindale, which form the largest consumer information provider in the legal market; and CarsDirect, Fodor's Travel, and many others which are leaders in their key vertical markets. Internet Brands' award‑winning consumer websites lead their categories and serve more than 250 million monthly visitors, while a full range of web presence offerings has established deep, long‑term relationships with SMB and enterprise clients. The company's powerful, proprietary operating platform provides the flexibility and scalability to fuel the company's continued growth. Internet Brands is a portfolio company of KKR and Warburg Pincus.

Internet Brands is an equal opportunity employer, and we welcome applicants from all backgrounds. We comply with all applicable laws and regulations, including the City of Los Angeles Fair Chance Initiative for Hiring Ordinance (FCIHO).

Notice to California residents: you can find information about our privacy practices, on: https://www.internetbrands.com/work-with-us/cpra