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Freelance Remote Prompt Engineer Jobs (NOW HIRING)

SWITS DIGITAL Private Limited

Prompt Engineer

Remote Required Skills * 3+ years of hands-on prompt engineering experience, ideally with production LLM systems * Deep practical knowledge of prompting techniques: chain-of-thought, few-shot, tool ...

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 ...

Redfish Recruiting

Prompt Engineer

Prompt Engineer For almost 50 years, our mission has been to give every student the best education ... Fully Remote ? Health insurance ? Dental insurance ? Paid sick time ? Paid time off ? Vision ...

Sensi.AI

Prompt Engineer

Austin, TX · On-site +1

... remote flexibility. Key Responsibilities Conversational Design and Prompting * Design multi turn ... Strong skills in prompt engineering techniques (e.g., few-shot, chain-of-thought, RAG pipelines)

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 ...

USM

JB061755 - AI Prompt Engineer - Remote

Length: 4 months+, can be extended and has potential for FTE conversion Location: 100% remote, must commit to a PST schedule Must Haves: * Advanced Prompt Engineering * Structured Data Transformation ...

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

As of Aug 23, 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.

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Freelance Remote Prompt Engineer jobs near you
Infographic showing various Freelance Remote Prompt Engineer job openings in the United States as of August 2026, with employment types broken down into 92% Full Time, 2% Part Time, and 6% Contract. Highlights an 86% Physical, 5% Hybrid, and 9% Remote job distribution, with an average salary of $99,230 per year, or $47.7 per hour.

Prompt Engineer: LLM Migration & Optimization

Welo Data

Charleston, WV • Remote

Part-time

Re-posted 7 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.

Working at Welo Data

What to expect from working at Welo Data

From Welo Data

About Welo Data, in their own words

From Welo Data

Welo Data is a global AI data services company powering the next generation of AI. We build, annotate, and validate the training datasets that make AI models accurate, safe, and ready for the real world — across languages, cultures, and domains.

Our team of experts spans the globe, combining deep technical knowledge with a human-centered approach. If you want your work to shape how AI understands the world, you'll find your place here.

Diversity and inclusion statement

From Welo Data

Our Strength is derived from Winning Together. Welo Data is unequivocally committed to developing and fostering a workplace and organizational culture that values the diversity of thought and perspective delivered by a diverse global workforce operating within an inclusive organization.