Paid Growth Marketing Expert

Obsidian; Greater London; On-site; GBP 65,000 - 90,000; Full time

Job summary

Obsidian is building high-fidelity simulated work environments to stress-test AI agents in marketing. You will design and pressure-test Paid Growth environments, specifying briefs, artifacts, and criteria, and review AI attempts against your standard.

The role covers diagnosis, prioritization, planning, QA, and orchestration across multiple marketing tools and dashboards. Prior experience and a deep understanding of paid acquisition are essential.

Qualifications

• Hands-on practitioner with paid acquisition ownership (budgets and results).
• Strong ability to explain decisions and reasoning clearly.

Responsibilities

• Design task briefs for paid growth scenarios and what the evaluation should test.
• Specify required documents, dashboards, personas, and tool states.
• Write or review reference answers and evaluation criteria.
• Review AI agent attempts against your standards.

Skills

Paid acquisition

Clear written reasoning

Tools

Google Ads

Meta Ads

GA4

Job description

About the work

We are building high-fidelity simulated work environments used to evaluate and improve AI agents on real marketing work. Each environment reproduces a marketing org's actual tool surface — email, storage, CRM, project management, social media management, web analytics, AEO/SEO, ads, CMS, product analytics and support — populated with realistic documents, dashboards, personas and deliberately planted problems.

You will help design and pressure-test the Paid Growth environments: the briefs, the artifacts, the judgment calls a strong practitioner would make, and the errors a weaker one would miss.

What you will do

• Design task briefs drawn from work you have actually done in paid acquisition, including what the task is really testing — the planted issue and the decision a strong practitioner should reach
• Specify the documents, dashboards, personas and tool states a realistic version of that task requires
• Write or review the reference answer and the criteria that separate a strong response from a plausible-but-wrong one
• Review AI agent attempts and judge them against your own standard

Tasks span the capabilities we measure: diagnosing what happened from messy or conflicting data, prioritizing and making tradeoffs, planning and executing, QA and reconciliation, triage and escalation, research and evaluation, reporting, and orchestrating multi-step work across several tools.

Paid Growth scope

Campaign performance diagnosis, budget allocation, funnel and pipeline diagnosis, lead recovery, account-based marketing, and web and pricing journey optimization.

Who we are looking for

• Hands-on practitioner experience running paid acquisition — you have owned budget and results, not only managed people who do it
• Fluent in the tools of the domain: Google Ads, Meta Ads, and Google Analytics 4
• Prior experience building AI training environments, RL environments or simulated case studies is strongly preferred
• Rubric Academy or Rubric Bootcamp certification is strongly preferred
• Clear written reasoning — much of the value is in explaining why a decision is right

Screening

Applicants complete a short multiple-choice knowledge screener specific to this sub-domain before review.