Project Lion - Lead Prompt Engineer - United States (Remote, Part-Time)
Project Lion - Lead Prompt Engineer - United States (Remote, Part-Time) is an open role at Welo Data, located in United States.
Applications open on Welo Data’s own site. How we make money.
About this role
We are looking for an experienced Lead Prompt Engineer to guide and manage a team through the full technical migration process, transitioning templates to LLM autoraters. In this role, you will leverage advanced prompt engineering techniques and the client’s internal tools to optimize model performance, ensuring the successful integration and ongoing enhancement of AI systems. As the team lead, you will drive the strategy, mentor junior engineers, and play a key role in shaping the future of our AI-driven solutions.
Pay
Not disclosed
Welo Data doesn’t publish a rate for this listing - it isn’t missing from our data.
About Welo Data
Welo Data's connection to Welocalize: Welocalize AI-data community. Multilingual evaluation, AI safety, search relevance and annotation
Ownership confidence: Confirmed. See the full network profile →
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Frequently asked questions
How do I apply for the Project Lion - Lead Prompt Engineer - United States (Remote, Part-Time) role at Welo Data?
Applications go through Welo Data's own portal - HumanSourcer links to the listing and never collects applications or handles hiring. Welo Data's access model is "Open / self-serve" (Join community). This listing was first seen here on July 20, 2026 and was still live at the last check.
Is the Project Lion - Lead Prompt Engineer - United States (Remote, Part-Time) role at Welo Data remote?
This role is listed for the United States.
What does the Project Lion - Lead Prompt Engineer - United States (Remote, Part-Time) role at Welo Data pay?
Welo Data doesn't state a rate on this listing. HumanSourcer never fills that gap with an estimate, so the absence is the source's, not a hole in this page. Welo Data's profile shows what its rate-carrying listings do advertise.
What kind of work is Project Lion - Lead Prompt Engineer - United States (Remote, Part-Time)?
Prompt engineering. Multilingual evaluation, AI safety, search relevance and annotation
Is Welo Data a legitimate AI-training platform?
Welocalize AI-data community - and that relationship is rated "Confirmed" here because it can be checked against welodata.ai rather than taken on Welo Data's word. Confidence describes how well the ownership is evidenced. It is not a rating of how the platform treats the people who work for it, which no public source covers reliably.
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