• Location: London, UK
• Employment type: Full-time
• Location Type: 3- day week on-site (London, Holborn HQ)

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Curvestone is building the AI workflow layer for complex, high-stakes processes, from legal contract reviews and compliance checks to financial audits and insurance claims.

Regulated services are still dominated by manual, siloed workflows that are hard to scale without risk. Our platform changes that. Curvestone AI automates multi-step, document-heavy processes with the precision, auditability, and security demanded by regulated industries, unlocking speed and accuracy that were previously out of reach.

We partner with compliance officers, legal ops leaders, and financial services innovators who rely on us as critical infrastructure. For them, we are not a “nice-to-have” experiment. We are business-critical.

We are a high-growth company headquartered in Holborn, London. Our team brings together expertise in AI, automation, and enterprise transformation, united by a mission to reinvent how regulated industries work.

This is an opportunity to help build category-defining technology, see your work adopted by leading organisations in law, finance, and compliance, and join Curvestone at an early stage in our growth journey.

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We are hiring a Senior Customer Success Lead to own and build our Customer Success function from the ground up.

You will be the senior CS leader at Curvestone — responsible both for establishing the processes, playbooks, and infrastructure that will underpin our CS motion long-term, and for doing the hands-on work of managing our portfolio of enterprise accounts day-to-day. You will work directly with our CEO and GTM leadership to ensure Curvestone AI becomes deeply embedded in our clients' critical workflows, and that our customers see measurable ROI from day one.

If you thrive with autonomy, enjoy building as much as executing, and want to make a real mark at a fast-growing AI company, this role is for you.

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• Own and build Curvestone's Customer Success function — you are the senior CS lead, responsible for the function's structure, performance, and culture
• Audit and stabilise the existing client portfolio, assessing account health, identifying retention risks, and establishing clear ownership and engagement cadences
• Lead customer onboarding, ensuring smooth implementation and fast time-to-value
• Partner with clients to understand their use cases and processes, map success outcomes, and embed Curvestone AI into their operations
• Own and grow a portfolio of enterprise accounts, ensuring adoption, retention, and expansion
• Build trusted relationships with senior stakeholders (e.g. Heads of Compliance or CIOs)
• Run regular success reviews, QBRs, and executive check-ins
• Design and implement CS processes, playbooks, and scalable enablement resources — building the infrastructure for CS as the team grows
• Collaborate cross-functionally with Solution Engineering, Product, and Sales and Marketing teams to deliver a seamless customer journey
• Collaborate with Sales on renewals and upsells, ensuring commercial outcomes
• Capture and prioritise customer feedback for Product and Engineering

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• 6+ years of proven Customer Success experience in B2B SaaS
• Experience as an early or first CS hire, or building a CS function from scratch — you know what it takes to create structure and process where none exists, while still delivering for customers
• Proven track record of driving renewals and leading upsell/expansion opportunities, not just supporting them
• Experience managing a portfolio of enterprise accounts, with measurable success in adoption, retention, and growth
• Strong client-facing skills, with the ability to build trusted relationships at senior levels (e.g. Heads of Compliance, General Counsel, CIOs)
• Comfortable navigating technical workflows and product integrations at a high level
• Analytical mindset, able to work with customer health metrics, usage dashboards, and CRM tools to track and improve outcomes
• Comfortable working in a fast-paced startup environment, thriving with autonomy and ambiguity

• Experience in regulated industries (legal, compliance, finance, insurance)
• Experience with or strong interest in AI / GenAI products or data-driven platforms
• Familiarity with usage-based SaaS pricing models
• Experience mentoring junior CS team members

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• Audit the existing client portfolio and produce a clear account health assessment, including a retention risk framework and immediate action plan
• Build strong relationships with your initial portfolio of enterprise customers, establishing yourself as a trusted point of contact
• Lead successful onboarding for at least one new account, ensuring fast time-to-value
• Deliver a QBR and success review that clearly demonstrates ROI and drives expansion opportunities
• Design and document the first set of Curvestone CS playbooks, covering onboarding, health monitoring, renewals, and escalation
• Provide actionable client insights that directly influence the product roadmap

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What We Offer

• Founding Impact: Help shape the future of Customer Success at Curvestone
• Competitive package: Base salary, bonus, and early equity ownership
• Top-tier team: Work with founders and leaders with deep expertise in AI, automation, and enterprise transformation
• Category-defining work: Help build the AI workflow layer for regulated industries
• Collaborative culture: A fast-moving, supportive team where your work drives immediate impact

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Diversity & Inclusion

At Curvestone we don’t just accept differences, we celebrate it, we support it, and we thrive on it for the benefit of our employees, our clients and our services. We are an equal opportunity employer and all qualified applicants will receive equal consideration for employment without regard to age, ancestry, colour, family or medical care leave, gender identity or expression, marital status, national origin, physical or mental disability, race, religion, sexual orientation, or any other characteristic protected by applicable laws, regulations and ordinances. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. If you need assistance and/or reasonable adjustments due to a disability during the application or interview process please let us know and we will be pleased to assist.