Senior Litigator - Complex Disputes & AI Task Design

Obsidian; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Mercor is seeking senior litigation professionals to build evaluation tasks for AI systems operating in civil litigation and dispute resolution contexts.

The role spans two tracks—US and International—requiring deep familiarity with FRCP, Federal Rules of Evidence, CPR, and international arbitration rules. Ideal candidates will design litigation scenarios, draft outputs, and write rubrics for senior litigators.

Qualifications

• 5+ years working as a litigator or trial attorney at a major litigation firm or corporate litigation department.
• Direct ownership of complex commercial litigation matters, with trial or arbitration experience.
• Fluency in litigation tooling and methodologies, plus understanding of how court procedure, discovery, and evidentiary rules actually work.
• A recognized professional credential is strongly preferred (JD with bar admission, or an international equivalent such as Barrister or Solicitor with advocacy rights)

Responsibilities

• Construct litigation scenarios spanning pre-trial discovery, motion practice, trial strategy, and settlement or arbitration processes.
• Build tasks across commercial litigation, complex and class action litigation, discovery and evidence management, trial advocacy, and appellate practice.
• Develop scenarios involving tools such as e-discovery platforms (Relativity, Everlaw), litigation management software, and deposition/trial preparation tools used on major matters.
• Apply litigation methodologies to produce reference pleadings, discovery responses, motions, and trial memoranda.
• Author rubrics that distinguish authentic litigation judgment from generic law school or bar exam-level recall.

Skills

Litigation experience

Trial experience

Litigation tooling

Procedural knowledge

Legal credential

Education

JD / Bar admission

Tools

Relativity

Everlaw

Job description

Mercor is seeking senior litigation professionals to build evaluation tasks for AI systems operating in civil litigation and dispute resolution contexts.

The role spans two tracks—US and International—requiring deep familiarity with FRCP, Federal Rules of Evidence, CPR, and international arbitration rules. Ideal candidates will design litigation scenarios, draft outputs, and write rubrics for senior litigators.