Manager, Scaled Customer Success - London

Synthesia · London · Support

Posted 2026-07-20

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About the role:

As the Manager of Scaled Customer Success at Synthesia, you’ll lead a high-performing team of CSMs, collectively managing a book of business $22M+ in ARR across our emerging and mid-market customer segments.

This role is at the intersection of people leadership, digital program innovation, and commercial accountability. You’ll be the architect of scalable, data-driven engagement programs that drive product adoption, elevate customer health, and protect and grow revenue at scale. You’ll bring a builder's mindset: able to identify what needs to be created, frame it clearly, and partner with Product and RevOps to bring it to life quickly.

- Lead, coach, and develop a team of 6+ Scaled CSMs across the U.S. and U.K., each managing a high-volume book of ~450 accounts

- Own the strategy and execution of digital customer success programs designed to drive engagement, product adoption, and retention across the emerging and mid-market segments

- Partner with Product, RevOps, and Customer Enablement to design, test, and iterate on automated and tech-touch engagement solutions

- Champion a data-driven, hypothesis-testing culture — using signals and insights to continuously evolve your programs based on what's working

- Support and coach your team through renewal and expansion conversations, ensuring commercial confidence and consistency across the book

- Manage and report on key retention metrics, renewal forecasting, and customer health across a $22M+ ARR portfolio

- Serve as a key stakeholder and voice for the scaled segment internally, influencing tooling, process, and product roadmap decisions

About you:

- 5+ years of Customer Success or Account Management experience within a SaaS organization, with at least 2 years in a people management or team lead capacity

- Proven track record leading scaled or digital CS motions, managing high-volume books of business across SMB, emerging, or mid-market segments

- Hands-on experience with Customer Success Platforms — Planhat strongly preferred; Gainsight, Vitally, or ChurnZero

- Familiarity with AI and automation tools and a genuine interest in applying them to improve customer engagement at scale

- Technically curious — comfortable constructing basic programs and automations, and skilled at identifying opportunities, scoping requirements, and managing cross-functional stakeholders to drive rapid deployment of more complex solutions

- Commercially sharp — able to guide your team through renewal negotiations and expansion conversations with confidence and empathy

- A natural experimenter: you love forming hypotheses, testing them, and letting data drive your decisions

- Strong communicator and influencer across internal functions — you know how to align Product, RevOps, and Enablement teams around a shared vision

- History of thriving in fast-moving, high-growth environments where the roadmap is still being written

At Synthesia we expect everyone to...

- Put the Customer First

- Own it & Go Direct

- Be Fast & Experimental

You can read more about this in this public Notion page https://synthesia.notion.site/How-we-work-at-Synthesia-f794caa72f8446efb6be22b551ce0fa2

In addition to being a part of a great team, working in a fun and innovative environment, we offer:

- A competitive salary + stock options in our fast-growing Series E start-up.

- Paid parental leave entitling primary caregivers to 16 weeks of full pay, and secondary 5 weeks of full pay

- 25 days of annual leave + public holidays in the country where you are based.

- Cycle to work scheme (London).

- Regular socials.

- Private Medical Insurance (Medical History Disregarded basis) including mental health support, dental & vision, cashback and gym discounts. (UK)

- A generous referral scheme.

- Pension contribution/salary sacrifice.

- Work from home set up.

- A huge opportunity for career growth as you’ll help shape a market-defining product.

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