About Mercor
Mercor's mission is to organize human intelligence to power the AI economy. We're a leading AI data company, building the layer between human expertise and frontier models. Millions of domain experts on the platform are paid over $4 million per day to train frontier AI models. Mercor's APEX benchmark family measures AI's real-world impact on professional work. Mercor Enterprise brings this same infrastructure to Fortune 500 companies: helping companies capture how their best people actually work, translating that expertise directly back into agents.
Mercor is creating a new category of work where expertise powers AI advancement. Achieving this requires an ambitious, fast-paced and deeply committed team. You’ll work alongside researchers, operators, and AI companies at the forefront of shaping the systems that are redefining society. Mercor is a profitable Series C company valued at $10 billion. We work in-person five days a week in our San Francisco, NYC, or London offices.
About the Role
Silicon Valley’s leading AI companies partner with Mercor to scale high-quality data operations. As an SPL, you will:
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Drive the tactical execution of multi-million-dollar projects.
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Build deep client relationships with researchers at top AI labs.
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Orchestrate the work of 1,000+ contributors.
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Ensure flawless operational execution under demanding timelines.
This is a hands-on operations role for candidates excited by process optimization, rapid iteration, and high-intensity problem solving. We're an early-stage startup that operates with intensity. That means occasionally being responsive on weekends and always holding a high bar for output. The upside — performance incentives, career trajectory, and meaningful equity — reflects that.
Core Responsibilities
Operational Excellence
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Design and manage end-to-end data pipelines, from customer specifications to final delivery.
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Diagnose bottlenecks, restructure workflows, and implement solutions that improve quality, throughput, and cost-efficiency.
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Examples include: creating incentive systems, re-sequencing workflows, refining instructions, and scaling review processes.
Customer Relationships
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Act as the primary point of contact for leading AI labs.
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Deliver clear, consistent reporting and proactively anticipate client needs.
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Build long-term trust and identify opportunities for expansion.
Large-Scale Coordination
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Manage 1,000+ distributed contributors in Slack-based workspaces.
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Source, vet, train, and performance-manage domain experts.
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Maintain high execution standards across all stages of production.
Quality Reporting
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Run daily internal syncs (“war rooms”) to stay ahead of issues.
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Provide regular, transparent progress updates to customers.
What We’re Looking For
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Experience: Background in consulting, finance, startups, or other operationally intense environments.
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Skills: Strong analytical and communication abilities; proven track record of managing complex projects.
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Customer-Facing Experience: Comfortable working directly with high-profile clients.
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Mindset: Excited by “gritty” process optimization and large-scale execution.
Key Facts
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SPLs generate $10M+ in project revenue annually.
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In-office Mon–Fri
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Customer requests are high-pressure and time-sensitive (e.g., onboarding 1,000 contributors in 3 days, delivering 10+ hours of quality data per contributor within 48 hours).
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The role is explicitly operations-focused—not strategy, product, or GTM.
Growth Path
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SPLs begin as individual contributors, running projects end-to-end.
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High performers may advance to Senior SPL (SSPL) roles, managing multiple projects and teams of SPLs.
Compensation
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Base cash comp from £89,500 to £111,900 for SPL, £111,900 – £149,200 for SSPL
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Aggressive bi-annual performance bonus structure
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Generous equity grant vested over 4 years
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£8K proximity bonus (if you live within 0.5 miles of our office)
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£1.2K monthly stipend for meals
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Free Gym membership
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£160 monthly laundry reimbursement
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£160 monthly personal wellness reimbursement
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Private medical, dental insurance
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Income protection, group life assurance, and critical illness cover
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Pension with company match
We consider all qualified applicants without regard to legally protected characteristics and provide reasonable accommodations upon request.
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Strategic Project Lead (UK) employer: Mercor
Mercor is an exceptional employer that champions innovation and creativity in the AI sector, offering a fully remote work environment that promotes flexibility and independence. With a strong focus on employee growth, team members are encouraged to take ownership of their projects while benefiting from a supportive culture that values collaboration and continuous learning. Joining Mercor means being part of a forward-thinking company backed by industry leaders, where your contributions directly impact cutting-edge search technologies.