UK-based Principal, Public Markets
Mercor • Remote, UK
Education
Any
Type
hourly
Pay Rate
$150/hr
Listed
Today
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About this Role
From the Mercor listing
1. Role Overview
Mercor is partnering with a leading AI research organization to engage an experienced public-markets investment professional.
You will lead the diagnosis of a public-markets portfolio, assess its positioning against current market conditions and relevant benchmarks, and develop practical recommendations covering asset allocation, fund and ETF selection, portfolio risk, rebalancing, and implementation.
2. Key Responsibilities
Evaluate holdings across public equities, fixed income securities, ETFs, funds, and other liquid investments.
Diagnose portfolio construction issues, concentration risks, asset-allocation gaps, and performance drivers.
Assess holdings against appropriate benchmarks and investment objectives.
Produce a structured market update covering relevant macroeconomic, sector, and asset-class developments.
Evaluate ETF and fund selection, including exposures, costs, liquidity, diversification, and suitability.
Develop evidence-based rebalancing recommendations.
Prepare clear implementation plans and proposed trade instructions.
Analyze performance, volatility, risk exposures, and benchmark-relative results.
Clearly document the reasoning supporting each recommendation.
Incorporate structured feedback from senior reviewers and iterate quickly on the work.
3. Ideal Qualifications
Approximately 8–10 years of professional public-markets investment experience.
Hands-on experience in portfolio management, asset allocation, ETF or fund selection, and portfolio-risk analysis.
Background at an institutional asset manager, Multi-Family Office, investment office, Hedge Fund, wealth manager, or comparable investment platform.
Experience as a Junior Portfolio Manager, Portfolio Manager, Investment Principal, Senior Investment Analyst, or similar professional is particularly relevant.
Strong understanding of public equities, fixed income, ETFs, funds, benchmarks, and portfolio implementation.
Experience producing market updates, portfolio diagnoses, rebalancing recommendations, and implementation plans.
Strong quantitative skills and proficiency with portfolio-performance and risk analysis.
CFA qualification is preferred but not required.
Exceptionally strong written communication and the ability to explain portfolio decisions with precision.
Detail-oriented, consistent, and comfortable having investment judgments reviewed and calibrated.
Prior experience with AI evaluation or structured investment-assessment projects is a plus.
4. Application Process
Submit your resume or relevant professional background to get started.
Qualified applicants may be asked to complete a brief investment assessment or provide additional information about their experience.
Requirements
- Must be eligible to work in one of: Remote, UK
- Fluent proficiency in English (Written & Verbal)
- Reliable high-speed internet connection
- Bachelor's degree or equivalent professional experience
- Demonstrated expertise in Finance
Why This Role
Rare opportunity for top 1% experts. Earn $150/hr contributing to the world's most advanced AI labs. This is one of the few roles where academic precision is valued as highly as commercial output.
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Frequently Asked Questions
Is Mercor for freelancers or full-time contractors?
Mercor places you with one client for a defined engagement, like 'Python Tutor for 3 months', rather than having you grab small tasks from a shared queue. Most roles function as steady contract work, not one-off gigs.
Does Mercor's application require an on-camera interview?
Yes, every applicant records a video interview with an AI interviewer that asks questions about your resume. Clients review that recording to judge communication skills before matching, so there's no way to apply without going on camera.
Does it cost money to apply to Mercor?
No, applying and joining Mercor is free. Mercor's revenue comes from a fee it charges the client on top of your hourly rate, not from applicants. Treat any request for payment to join as a red flag.
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 Finance work look like for a UK-based Principal, Public Markets?
Tasks here are scoped to Finance, not generic labeling. As a UK-based Principal, Public Markets, expect to draw on real domain judgment (evaluating outputs, correcting errors, or providing expert reasoning specific to Finance) rather than following a one-size-fits-all rubric. If you don't have hands-on Finance 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 Mercor'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.
Can I apply from outside UK?
This specific role is open only to people based in UK. If you are somewhere else, applying is unlikely to lead to an offer even if you pass the assessment, because the restriction is usually about where the work can legally be contracted rather than your skills. Read the full description for any tax-residency or right-to-work caveats before you apply.
How soon will I start working after applying to Mercor?
Not immediately. Mercor is a talent marketplace, not a task queue, so applying puts you in a pool of candidates. You start working only once a specific client, like a major AI lab, selects your profile, and that matching process can take weeks.