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Scaled Customer Success Manager - London

Colossyan

Colossyan

Sales & Business Development, Customer Service
London, UK
Posted on Nov 12, 2025
Customer Success · London · Hybrid

Scaled Customer Success Manager - London

About Us

At Colossyan, we are helping modern teams scale training with AI video.

Top companies like Novartis, Paramount, Continental, and WSP use Colossyan to create engaging video content from text and documents, with significant time and cost savings compared to traditional video production. Nearly 1 million videos have been created using Colossyan, and we’ve been recognised as a G2 Leader in multiple product categories.

Here is an overview of what you can do with Colossyan:

- Create videos from text, with narration from our professional AI avatars
- Turn documents, presentations and prompts into engaging videos
- Translate your video content to 80+ languages in seconds
- Personalize your videos by creating a digital avatar of yourself
- Make training interactive with features like branching, quizzes, and more

We take great pride in fostering a culture of growth within our rapidly-growing, international team of over 50. Our organization thrives on a deep-seated passion for technology and its incredible potential, with a strong commitment to the personal and professional development of each team member.

To learn more about our product features, visit colossyan.com.

About the Role

You will own and evolve our scaled success motion across the mid-market / SMB segments, focusing on lifecycle automation, digital engagement, and selective high-leverage touchpoints. You will be pivotal in customer retention, adoption, growth and driving efficiency through scalable processes and automation

Responsibilities

Customer engagement: Manage post-sale activities & own retention for Colossyan’s mid-market & SMB customers

Scaled CS Programs: Lead webinars, office hours, QBRs and create in-app guides and product support materials

Lifecycle Automation: Manage and improve existing automated onboarding, adoption, renewal, and expansion campaigns (via Planhat)

Churn Risk Management: Identify and act upon behavioral and usage-based alerts to mitigate churn

Tooling & Systems: Maintain Planhat workflows, health scores, and reporting accuracy

Collaboration & Growth: Work with sales to create and close expansion opportunities

Success Metrics

Gross dollar retention

Expansion pipeline creation & wins

Adoption & usage metrics

Reduced manual CS touch time

Retention health scoring accuracy

Ideal Background

3+ years in Customer Success, CS Ops or Scaled Success within the SaaS industry

Experience managing a large customer portfolio (>100 accounts)

Hands-on with Planhat (preferred), Gainsight, Totango, Hubspot or other customer data tools

Track record of launching automated customer success motions

Strong commercial acumen, comfortable negotiating renewal contracts

Technical aptitude and ability to quickly learn and navigate software applications

What we offer:

  • Stock options: We want everyone to feel motivated to do their best work, which is why we’re all owners.
  • Remote work: Enjoy extra flexibility with one full week of remote work per quarter.
  • Free lunch Thursdays: Build team connections over complimentary weekly lunches, available for both in-office and remote employees.
  • Wellness Wednesdays: We know working at a startup can be mentally tough, which is why we offer monthly expert-led sessions on meditation, yoga, and other well-being practices.
  • Great office location: Work from our centrally-located, pet-friendly office designed for comfort and team collaboration.
  • Birthday time off: Celebrate your birthday with an additional paid day off, if it falls on a weekday, separate from your regular vacation allowance.
  • Flexible annual leave: Enjoy 25 days of annual leave with the unique option to convert the 8 bank holidays into working days and boost your annual leave allowance to 33 days. Choose what works best for you.
  • Private healthcare: Access private healthcare through Bupa, including talk therapy and physiotherapy. We understand that everyone does their best work when they’re happy and healthy.
  • Retirement planning: We offer matched salary sacrifice pension with Smart Pension.
  • Cutting-edge AI technology: Be at the forefront of AI innovation, working directly with state-of-the-art AI technologies that form the core of our product.
  • Impact: As a rapidly expanding Series A startup, your contributions will have an immediate impact on our global development!


At Colossyan, we believe that diversity drives innovation and inclusion fosters a sense of belonging. We are committed to creating a workplace where everyone feels valued, respected, and empowered to bring their authentic selves to work.

We actively seek to build a diverse team and encourage applications from candidates of all backgrounds and beliefs to apply to our open positions.

We strongly encourage individuals from underrepresented and/or marginalised identities to apply. If you need any accommodations for your interview, please email recruitment@colossyan.com

Department
Customer Success
Locations
London
Remote status
Hybrid
Employment type
Full-time

About Colossyan

Colossyan is an AI video platform that transforms how modern teams learn and communicate by turning text, presentations, and documents into engaging, avatar-led training videos.

Traditional formats like static presentations and text-heavy manuals are no longer enough. Today’s teams expect video - content that’s personalized, visual, and interactive. Colossyan makes it simple to create, with no editing skills or expensive production needed.

Leading companies like Novartis, Paramount, and WSP use Colossyan to create onboarding, training, and communications content that’s faster and more cost-effective - but most importantly, content that gets watched, understood, and remembered.

With interactive AI avatars, voiceovers, and support for over 100 languages, Colossyan helps organizations deliver scalable video experiences that engage teams across departments and borders.

Founded in 2020
Co-workers 50+
Customer Success · London · Hybrid

Scaled Customer Success Manager - London