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STEM sme_careers

Propulsion Engineer

SME Careers Remote

Education

Any

Type

hourly

Pay Rate

$160/hr

Listed

42d ago

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Propulsion-26-0502

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About this Role

From the SME Careers listing

If you’re a senior propulsion engineer who thrives on technical precision, systems thinking, and rigorous engineering judgment, this is a unique opportunity to contribute directly to how the next generation of AI systems reason about aerospace and propulsion topics. We’re looking for propulsion specialists who have deep experience with propulsion architecture, combustion systems, thermal management, performance analysis, test campaigns, failure modes, and design tradeoffs. You’ll challenge and evaluate advanced language models on propulsion engineering topics to strengthen model reasoning, accuracy, and technical communication.

Key Responsibilities

  • Evaluate AI-generated answers for technical accuracy, completeness, and reasoning quality across propulsion engineering topics.
  • Challenge advanced language models with realistic propulsion scenarios, design tradeoffs, calculations, and edge cases.
  • Review and refine AI-generated prompts, model responses, reasoning chains, and technical explanations.
  • Identify subtle technical errors in areas such as thrust performance, chamber pressure, mixture ratio, cooling strategy, combustion behavior, test interpretation, and system integration.
  • Provide structured feedback that helps improve model accuracy, reliability, and domain-specific reasoning.
  • Shape AI communication standards for propulsion engineering by clarifying what high-quality technical explanations should include.

Your Profile

  • 5+ years of professional experience in propulsion engineering, aerospace engineering, rocket propulsion, spacecraft propulsion, launch vehicle systems, aircraft propulsion, or a closely related technical field.
  • Significant hands-on work with propulsion system design, analysis, integration, test, qualification, anomaly resolution, or flight-support engineering.
  • Deep knowledge of propulsion fundamentals, including thermodynamics, fluid mechanics, combustion, heat transfer, nozzle flow, pressurization, and system-level tradeoffs.
  • Strong understanding of liquid, solid, hybrid, electric, or air-breathing propulsion systems, including performance metrics, operating constraints, and common failure modes.
  • Bachelor’s degree in Aerospace Engineering, Mechanical Engineering, Propulsion Engineering, or a related field; advanced degree preferred for highly specialized propulsion domains.
  • Previous experience with AI data training, annotation, or evaluating AI-generated technical content is a strong plus.

🌍 Geographic Availability This role is available to qualified experts globally. However, as a U.S.-based company, SME Careers complies with U.S. export control and sanctions regulations. Eligibility depends on your country of residence and any applicable trade restrictions. Some projects may have additional language or region-specific requirements.

💰 Pay Rate May Vary Based on Your Location Your actual compensation will be determined based on your location and local market conditions. See regional job listings for localized pay information, or the application process will clarify your specific rate.

If you're unsure whether you're eligible, proceed with the application—SME's screening will determine your jurisdiction status and applicable compensation.

Requirements

  • Advanced degree or strong hands-on professional experience in the domain
  • Ability to pass domain-specific qualification assessments
  • Eligible to create a verified account on Deel (for payments/compliance)
  • Proficiency in English (for instructions and feedback)
  • Available to applicants in 40+ countries

Why This Role

SME Careers treats STEM expertise as a career asset, not a one-off gig. As a Propulsion Engineer, consistent high-quality work moves you up a real ladder: Data Trainer, then Quality Analyst, then Project Manager. Payments run weekly through Deel, and the schedule is entirely yours to set.

Skills & Categories

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Frequently Asked Questions

Does SME Careers offer a path for advancement?

Yes. SME Careers is unusual among AI training platforms for this: it publishes an explicit career ladder, Data Trainer, then Quality Analyst, then QA Lead, then Project Manager. Consistent, high-quality work is what moves you up it.

How does SME Careers pay freelancers?

Weekly, through Deel. Deel also handles tax compliance, which is how SME Careers pays contractors across more than 40 countries without running its own international payroll.

Is SME Careers work ongoing or project-based?

Project-based. Assignment duration and availability vary by project, but consistently high-quality work earns priority access to whatever comes next.

Is AI training work the same as traditional consulting?

No. Instead of client deliverables, you're given complex scenarios to evaluate: grading the AI's logic, correcting its hallucinations, and supplying expert-level reasoning it doesn't have on its own. The job is closer to teaching than consulting.

Why do these AI training roles pay so much?

Because general knowledge isn't what's being tested. The model already knows the basics; what it needs is expertise on edge cases, the rare, difficult, highly technical judgment calls only a senior professional in the field would make correctly.

What does the day-to-day workload look like for elite-expert AI training roles?

Slow and deep, not fast and repetitive. A single task can take 45-60 minutes of researching citations or verifying complex calculations. Quality is what's being measured here, not throughput.

What does STEM work look like for a Propulsion Engineer?

Tasks here are scoped to STEM, not generic labeling. As a Propulsion Engineer, expect to draw on real domain judgment (evaluating outputs, correcting errors, or providing expert reasoning specific to STEM) rather than following a one-size-fits-all rubric. If you don't have hands-on STEM background, this is likely not the right listing to start with.

What happens when I click Apply on this listing?

You'll be taken to SME Careers's external site to complete your application there. This listing links through a referral, but the process is identical to applying directly; the link just routes you correctly. Create an account on their site and follow their onboarding steps.

Who is behind SME Careers?

SME Careers is the expert talent division of SuperAnnotate, an AI data infrastructure platform, connecting domain experts with high-level AI training projects.