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For Companies At a Glance
- Tasks: Own the customer journey from onboarding to renewal, ensuring success and satisfaction.
- Company: Join a fast-growing cybersecurity company focused on AI tools and data protection.
- Benefits: Competitive salary, flexible work options, and opportunities for professional growth.
- Why this job: Shape customer experiences and drive innovation in a pioneering tech environment.
- Qualifications: 7+ years in customer success with strong relationship-building skills.
- Other info: Be part of a dynamic team that values collaboration and customer-centric solutions.
The predicted salary is between 36000 - 60000 £ per year.
About Harmonic
Harmonic Security lets teams adopt AI tools safely by protecting sensitive data in real time with minimal effort. It gives enterprises full control and stops leaks so that their teams can innovate confidently. We are led by cybersecurity experts and backed by top investors including N47, Ten Eleven Ventures, and In-Q-Tel. As we expand rapidly across the U.S. and Europe, we’re looking for a Customer Success leader who can help us deliver an exceptional experience to every customer. You’ll play a foundational role in shaping how Harmonic drives adoption, retention, and long-term value as we scale. This is a chance to join early, influence our customer journey end-to-end, and help define what great looks like in a new category.
About the Team
Our Customer Success team delivers a world-class experience for every customer. We don’t believe in one-size-fits-all — instead, we take a partnership approach to help our customers realize their vision and achieve meaningful business outcomes through Harmonic Protect.
About the Role
As a Customer Success Manager, you’ll own the full customer lifecycle — from onboarding to renewal — and ensure our customers achieve measurable adoption, retention, and ROI. You’ll be a trusted advisor to executives and technical stakeholders alike, building relationships that drive long-term success.
What You’ll Do
- Serve as the primary point of contact for key accounts, adapting to evolving customer needs.
- Own the end-to-end customer lifecycle, from onboarding to renewal.
- Lead Quarterly Business Reviews (QBRs) and executive-level engagements.
- Develop and present data-driven insights that connect product usage to business outcomes.
- Champion the voice of the customer, ensuring their needs shape our product and strategy.
- Collaborate closely with Customer Success leadership to help build, refine, and scale the Customer Success organization - contributing to the playbooks, processes and metrics that define how Harmonic delivers value to customers at scale.
What You Bring
7+ years in customer success.
Customer Success Manager in London employer: Harmonic Security, Inc
Contact Detail:
Harmonic Security, Inc Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Customer Success Manager in London
✨Tip Number 1
Network like a pro! Reach out to current or former employees at Harmonic on LinkedIn. A friendly chat can give us insider info and maybe even a referral, which can really boost our chances.
✨Tip Number 2
Prepare for the interview by understanding Harmonic's mission and values. We should be ready to discuss how our experience aligns with their goals, especially around customer success and data protection.
✨Tip Number 3
Showcase our achievements! Bring specific examples of how we've driven customer success in previous roles. Numbers speak volumes, so let’s highlight measurable outcomes that demonstrate our impact.
✨Tip Number 4
Don’t forget to follow up after the interview! A quick thank-you email reiterating our enthusiasm for the role can leave a lasting impression. Let’s make sure they remember us!
We think you need these skills to ace Customer Success Manager in London
Some tips for your application 🫡
Tailor Your Application: Make sure to customise your CV and cover letter for the Customer Success Manager role. Highlight your experience in customer success and how it aligns with Harmonic's mission to deliver exceptional customer experiences.
Showcase Your Achievements: Don’t just list your responsibilities; share specific achievements that demonstrate your impact in previous roles. Use metrics where possible to show how you’ve driven adoption, retention, or ROI for customers.
Be Authentic: Let your personality shine through in your application. We want to see who you are beyond your professional experience. Share your passion for customer success and how you can contribute to shaping the customer journey at Harmonic.
Apply Through Our Website: We encourage you to apply directly through our website. This ensures your application gets to the right people and shows your enthusiasm for joining our team at Harmonic!
How to prepare for a job interview at Harmonic Security, Inc
✨Know the Company Inside Out
Before your interview, dive deep into Harmonic's mission and values. Understand how they protect sensitive data and the unique challenges their customers face. This knowledge will help you tailor your responses and show that you're genuinely interested in their work.
✨Showcase Your Customer Success Experience
Prepare specific examples from your past roles where you've successfully managed customer relationships. Highlight instances where you drove adoption, retention, or ROI. Use metrics to back up your claims, as this aligns perfectly with the data-driven insights they value.
✨Prepare for QBR Scenarios
Since leading Quarterly Business Reviews is a key part of the role, think about how you would approach these meetings. Be ready to discuss how you would present data-driven insights and engage with executives. Practising this will demonstrate your readiness for the responsibilities.
✨Emphasise Collaboration Skills
Harmonic values a partnership approach, so be prepared to discuss how you've collaborated with cross-functional teams in the past. Share examples of how you’ve championed the voice of the customer and influenced product strategy based on customer feedback.
