Client Service Lead

Cornspring; Greater London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

An innovative FinTech start-up in Greater London is seeking a Client Steward responsible for managing client relationships from onboarding to service delivery. You will ensure accuracy, continuity, and a high level of professionalism while building long-term trust. The ideal candidate has experience in financial data and should excel in client-facing roles, particularly with investment and accounting operations. This position offers a competitive salary and hybrid working options.

Benefits

Competitive salary and benefits

Private medical insurance

Hybrid working model (3 days in office)

Opportunity to work at the forefront of AI-driven finance

Qualifications

• Prior experience in client-facing roles within financial data or reporting.
• Ability to explain complex data behavior simply.
• Experience with CFO, CIO, and Head of Operations profiles.

Responsibilities

• Own onboarding engagement, narrative, and timeline.
• Manage expectations around data and service scope.
• Triage client issues and determine the escalation path.
• Build trusted relationships with client stakeholders.
• Feed insights back to product, data, and leadership teams.

Skills

Client relationship management

Commercial awareness

Data interpretation

Calm under pressure

Job description

Overview

Unfortunately no visa sponsorship can be provided in the UK

Cornspring is an innovative FinTech start-up with a mission to empower Family Offices and Asset Owners with real-time, AI-driven data intelligence and portfolio insights.

We are tackling one of the most complex and valuable challenges in finance. Our clients operate at the highest levels of global markets, managing billions in assets, yet they remain constrained by legacy systems that are slow, fragmented, and outdated.

Cornspring is redefining Family Office services by applying state-of-the-art generative AI and Large Language Models to investment, accounting, and operational data. Our platform delivers faster insights, greater transparency, and entirely new ways of interacting with financial information.

Role

You will be responsible for the end-to-end stewardship of assigned clients\' service relationship from data onboarding through to service delivery, ensuring accuracy, continuity, responsiveness, and confidence in Cornspring\'s service.

As the "custodian of client trust", you will own the client\'s lived experience of the data on our platform and our service delivery to clients. You will make sure that client trust increases over time, not just satisfaction scores.

You will ensure that all clients receive the same level of professionalism, care, responsiveness, diligence and escalation seriousness.

Key Responsibilities

• Client lifecycle: Own onboarding engagement, narrative and timeline
• Set and manage expectations around data, reporting, LLM Chat and service scope
• Lead Quarterly Business Reviews / check-ins (formal or informal)
• Issue & escalation: Triage client issues, decide severity and determine escalation path
• Communicate clearly and calmly during incidents
• Translate technical or data complexity into clear, client-appropriate explanations
• Coordinate internally to resolve issues
• Commercial intelligence: Identify renewal risks, expansion signals, and recurring pain points
• Build trusted, long-term relationships with client stakeholders
• Feed structured insight back into product, data, and leadership teams

Requirements

• To be successful in this role, you need to have prior experience in client-facing roles within financial data or reporting firms, asset managers, wealth platform service providers, or large multi-family offices.
• You need to be commercially aware and to be credible with investment and accounting operations staff at a family office, especially when working with CFO, CIO and Head of Operations profiles.
• Your judgement needs to remain calm under ambiguity.
• You need to be able to explain complex data behaviour simply.

Benefits

• Competitive salary and benefits, including private medical insurance, cash plan, life insurance, and income protection
• Hybrid working: three days per week in our City of London office
• An opportunity to work at the forefront of AI-driven finance, tackling genuinely complex and high-impact challenges
• A collaborative, high-ownership start-up environment offering exceptional learning opportunities
• The chance to help shape the future of Family Office and Asset Management technology