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Freelance Remote Prompt Engineer Jobs (NOW HIRING)

Space44

Engineer / Developer - Freelance (Remote)

Our unique approach ensures precise integration and high team performance in full-remote, nearshore ... You'll be among the first we reach out to when new freelance opportunities go live. Key ...

Space44

Engineer / Developer - Freelance (Remote)

Our unique approach ensures precise integration and high team performance in full-remote, nearshore ... You'll be among the first we reach out to when new freelance opportunities go live. Key ...

Team Red Dog

AI Prompt Engineer

Redmond, WA · Remote

This upcoming fully remote role will support enterprise AI initiatives focused on conversational AI, generative AI experiences, prompt engineering, and intelligent automation solutions across ...

Herbalife

Prompt Engineer, AI

Los Angeles, CA · Remote

As an AI Prompt Engineer, you'll blend technical understanding of AI behavior with creative problem ... REMOTE Herbalife offers a variety of benefits to eligible employees in the U.S. (limited to the 50 ...

Herbalife

Prompt Engineer, AI

Los Angeles, CA · Remote

As an AI Prompt Engineer, you'll blend technical understanding of AI behavior with creative problem ... LI-REMOTE US Benefits StatementHerbalife offers a variety of benefits to eligible employees in the ...

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How much do freelance remote prompt engineer jobs pay per hour?

As of May 31, 2026, the average hourly pay for freelance remote prompt engineer in the United States is $47.71, according to ZipRecruiter salary data. Most workers in this role earn between $24.28 and $61.78 per hour, depending on experience, location, and employer.
What are the most commonly searched types of Remote Prompt Engineer jobs? The most popular types of Remote Prompt Engineer jobs are:
Freelance Remote Prompt Engineer jobs near you
Infographic showing various Freelance Remote Prompt Engineer job openings in the United States as of May 2026, with employment types broken down into 90% Full Time, 3% Part Time, and 7% Contract. Highlights an 83% Physical, 9% Hybrid, and 8% Remote job distribution, with an average salary of $99,230 per year, or $47.7 per hour.
Prompt Engineer: LLM Migration & Optimization

Prompt Engineer: LLM Migration & Optimization

Welo Data

Charleston, WV • Remote

Part-time

Posted 12 days ago

Job description

United States • Remote • Part-Time

Are you an expert at navigating the complex logic of Large Language Models? Welo Data is seeking a technical Prompt Engineer to lead the end-to-end migration of template workflows into high-performance LLM autoraters.

This isn't just about writing prompts—it’s about engineering a technical bridge. You will use advanced APG/APO tools and manual refinement to ensure our automated systems meet (and exceed) human accuracy baselines.

The Mission: Architecting the Future of Rating
  • Technical Migration: Take ownership of the workflow for transitioning templates to LLM autoraters.
  • Optimization Leadership: Run and supervise Automated Prompt Optimization (APO) tools, identifying where logic plateaus and providing the manual "spark" to overcome deadlocks.
  • Metrics-Driven Accuracy: Continuously measure quality against gold data, calculating critical performance metrics like precision, recall, and $F_1$ scores.
  • Edge-Case Engineering: Solve complex scenarios by designing manual prompts that handle anti-patterns and broken logic in legacy architectures.
Project Details
  • Schedule: Part-Time (Flexible hours within project milestones)
  • Location: 100% Remote (Must be based in the United States)
  • Employment Type: Freelance / Independent Contractor
 Who We Are Looking For
  • Linguistic & AI Mastery: 2+ years of experience as a Prompt Engineer. You must be comfortable tuning LLMs for structured outputs and complex classification tasks.
  • Academic Background: BS, MS, or PhD in Computer Science, Data Science, Computational Linguistics, or a related analytical field.
  • Technical Agility: Fast learner capable of mastering proprietary internal tools and interfaces (like the Goose API) with minimal supervision.
  • Data Fluency: Strong ability to identify error patterns and use SQL or data analytics tools to analyze model performance.
Preferred Skills
  • Familiarity with shadowbot disagreement tracking between humans and LLMs.
  • Hands-on experience with Chain-of-Thought (CoT) and few-shot learning.
  • Proven ability to draft high-level Launch Certification Documentation.