Quantum Expert

An expanding construction consultancy is seeking a Director – Quantum to join its expert witness division.

Based in London (or remote with periodic London travel), you will take a leading role in delivering complex quantum expert commissions, supporting dispute resolution proceedings and driving the continued growth and profile of the quantum offering. 

This is an excellent opportunity for an established senior quantum professional who is already acting as an expert, or is a proven lead assistant ready to step into regular testifying expert appointments.

Project Details

The Director will play a key role in leading, managing, and delivering quantum expert witness work within a Forensic Expert Witness team. This includes setting the approach to quantum analysis, providing senior-level oversight of deliverables, presenting findings internally and externally, and ensuring best practice, efficiency and consistent quality.

Assignments typically relate to formal dispute resolution processes such as litigation, arbitration and adjudication. The role will also involve expert advisory work on live projects, settlement negotiations and mediations in the UK and internationally. Project sectors may include building, civil engineering and wider infrastructure (specific projects not known).

Responsibilities and Duties

This is a senior leadership role focused on the delivery of high-quality quantum expert work, leadership of client relationships, and the ongoing development of the quantum service line.

• Act as Quantum Expert on suitable instructions, including responsibility for expert opinion, report sign-off and client/counsel interface
• Lead the preparation and delivery of robust quantum expert reports, ensuring clear methodology, defensible conclusions and high presentation standards
• Provide strategic advice on claims, counterclaims, settlement strategy, negotiation support and mediation preparation
• Present findings clearly to clients, solicitors, counsel, tribunals and internal stakeholders
• Take an active role in business development, including generating new instructions, cross-selling services and strengthening the brand in the disputes market
• Contribute to service line strategy, resource planning and the efficient deployment of team capability across commissions
• Provide technical leadership, mentoring and development of junior and mid-level staff, including quality assurance and coaching on expert report writing
• Oversee team administration and workflow management to ensure deadlines, budgets and quality expectations are consistently met
• Support the growth of a reputation as a testifying expert (and provide testimony where appropriate)

Desired Skills and Experience

The successful candidate will be a credible senior quantum professional with strong report-writing capability and the interpersonal skills to operate confidently at senior client and legal stakeholder level.

• Highly competent in writing quantum expert reports and presenting clear, well-evidenced opinions
• Track record of acting as Quantum Expert and/or lead assistant / No.2 on multiple expert appointments
• Strong understanding of construction claims quantum, including variations, loss and expense, disruption, prolongation, damages and termination-related claims
• Experience across different markets and a range of construction and engineering projects and claims
• Demonstrable ability to develop and maintain a network of client and legal relationships (solicitors, counsel, funders and industry stakeholders)
• Strong commercial awareness and confidence contributing to winning work and securing repeat instructions
• Confident communicator with strong attention to detail and a quality-first mindset
• Testifying experience is advantageous, though not essential where the candidate can evidence clear progression toward expert appointments

Qualifications/Educational Requirements

• Degree qualified (or equivalent)
• Ideally Chartered with a relevant professional institution (e.g. RICS or similar)
• Postgraduate study in construction law / dispute resolution (LLM / MSc) is advantageous but not essential

Employing Company Overview and Profile

The hiring company is a leading advisory and expert witness consultancy within a wider multidisciplinary professional services group. The business provides expert advisory and forensic expert witness services to the construction and infrastructure sectors, supporting clients across the full dispute lifecycle—from early dispute avoidance and strategic commercial advice through to formal proceedings including adjudication, arbitration and litigation.

The team is recognised for producing clear, robust and well-evidenced quantum analysis on complex, high-value matters, often working alongside legal teams, counsel and other technical experts. The organisation offers a strong platform for career progression, high-quality internal and external training, and a collaborative culture that supports professional development (including chartership and further study such as MSc/LLM programmes).

A full client overview will be provided to suitable candidates.

Additional Benefits Package and Incentives

• Annual bonus
• Pension
• Private medical cover
• Life cover
• Professional membership fees paid
• Ability to work from home with travel to the London office as required