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Chemical Engineer

SME Careers Contract US, CA, UK +4

Listed pay: Up to $60 to 100, depending on country / hr

What the posting lists, in US dollars an hour. The rate depends on the country you work from:

  • Up to $100 / hrUnited States, Germany
  • Up to $70 / hrUnited Kingdom
  • Up to $60 / hrCanada, Australia, New Zealand, Brazil
Apply on SME Careers

If you're hired through a link here and start paid work, SME Careers pays this site a share of what you earn. Your pay is unaffected.

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Before you apply

Details from this posting, and how SME Careers screens and pays.

  • LocationRemote, open to United States, Canada and 5 more
  • ScreeningA CV-based application, a recorded AI video interview of about 15 minutes, then a review by SME's team. See what to expect
  • How SME Careers paysWeekly, through Deel, for approved work. What SME Careers does not say

Checked today

Source: SME Careers

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Role details

If you are a chemical engineer who thrives on technical precision, applied problem-solving, and real-world process reasoning, this is a unique opportunity to contribute directly to how the next generation of AI systems understand and communicate complex chemical engineering concepts. We are looking for chemical engineering specialists who can evaluate, challenge, and refine advanced language models on domain-specific topics. Your expertise as a Chemical Engineer will directly help improve the world’s premier AI models, and will play an important role in shaping the future of AI. This role is with SME Careers, a fast-growing AI Data Services company and subsidiary of SuperAnnotate, delivering training data for many of the world’s largest AI companies and foundation-model labs.

Your profile

  • 4+ years of professional chemical engineering experience, with meaningful hands-on work in process design, plant/operations engineering, process safety, scale-up, manufacturing, utilities, EHS, quality, R&D, controls/automation interfaces, or a closely related chemical engineering specialty.
  • Deep knowledge of chemical engineering fundamentals, including material & energy balances, thermodynamics, fluid mechanics, heat & mass transfer, reaction engineering, separations (distillation, absorption, extraction, membranes), unit operations, and process control concepts.
  • Strong comfort with engineering calculations, assumptions, constraints, and defensible reasoning (including uncertainty, safety factors, and limitations).
  • Bachelor’s degree in Chemical Engineering (or closely related) required; Master’s/PhD, PE/Chartered credentials, or advanced professional certifications strongly preferred.
  • Previous experience with AI data training, annotation, red-teaming, or evaluating AI-generated technical content is a strong plus.
  • Familiarity with tools and artifacts such as PFDs/P&IDs, Aspen Plus/HYSYS, CHEMCAD, process datasheets, PSM documentation, HAZOP/LOPA, or SOPs is a plus.

Key responsibilities

  • Evaluate AI-generated responses for technical accuracy, logical soundness, completeness, and clarity across chemical engineering topics.
  • Challenge advanced language models with realistic chemical engineering scenarios, calculations, and process-informed reasoning tasks.
  • Review and refine AI-generated prompts, model responses, explanations, and step-by-step engineering solutions.
  • Provide structured feedback that identifies factual errors, flawed assumptions, missing constraints, unsafe recommendations, unit/consistency mistakes, or incomplete reasoning.
  • Assess model performance on topics such as: Material & energy balances, phase behavior, and thermodynamic property use, Unit operations and sizing logic, Distillation/separations design logic and feasibility checks, Process control reasoning, Process safety, Scale-up/manufacturability, operability, and troubleshooting of plant scenarios
  • Help shape AI communication standards for technical chemical engineering content, including how models explain assumptions, limitations, calculations, and professional judgment.
  • Ensure AI-generated content reflects sound engineering principles, appropriate safety considerations, and responsible technical communication (including “when to escalate to a licensed engineer/site expert”).

From the SME Careers posting.

Applying on SME Careers

What happens after you click

  1. The link opens this role on SME Careers. Sign up and apply from there.
  2. Create an SME Careers account, then complete the application: a CV as a PDF or your education and work history, your languages and your country. The link opens the application with this role already selected.
  3. Take the AI interview for the role: a recorded video interview of about 15 minutes, in English for most roles, best on a desktop computer.
  4. If you pass, SME's team reviews your profile and may invite you to a short call. If screening succeeds you sign a contract through Deel, verify your identity and link Discord, then wait for a project invitation.
  5. The work is paid by the hour at up to $60–100 an hour, depending on country. Each country's rate is listed at the top of this page.
  6. Remote, open to Australia, Brazil, Canada, Germany, United Kingdom, New Zealand and United States. The posting also names countries this site does not cover.
Apply on SME Careers Prepare for the interview

If you're hired through a link here and start paid work, SME Careers pays this site a share of what you earn. Your pay is unaffected.

Red Pen Jobs is independent. We are not affiliated with, endorsed by, or acting for SME Careers in any way, and we do not recruit on its behalf.

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