Senior Customer Success Manager

At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements. If you're a close but not exact match with the description, we hope you'll still consider applying. Want to learn more about life at Klaviyo? Visit to see how we empower creators to own their own destiny.

We're seeking passionate Customer Success Professionals (CSMs) for our new state of the art and dynamic London office who thrive in a hybrid working environment (3 days in the office). Our mission is to exceed customer expectations and drive their growth. We're looking for CSMs who are dedicated to delivering the best experience to our EMEA customers.

This is an exciting opportunity for someone with a customer-first attitude, strong consultative and technical skills, and a proven track record of creatively solving unique problems in a fast-paced environment.

Ideal candidates will have a strong background in CRM, Campaign Management, Data and Analytics, Digital, E-Commerce, or Marketing Technology Solutions.

How you will make a difference:

• Transform workflows by putting AI at the centre, building smarter systems and ways of working from the ground up.
• Be passionate about customer success and establish yourself as the trusted advisor for Klaviyo's Mid-Market and Enterprise Businesses.
• Drive positive Net Revenue Retention by mitigating churn risk and identifying opportunities for customer expansion and upgrades.
• Devise customized success plans based on customers' goals and challenges, holding customers accountable for driving action.
• Compose strategies to increase email, SMS, and digital channel revenue for all customers through the Klaviyo platform while driving growth and expansion.
• Proactively review customer performance, address any open issues, and ensure consistent messaging and appropriate escalation.
• Keep customers up to date on product releases and new features.
• Share feedback with Product/Engineering to enhance customer engagement.
• Contribute to a positive team environment of collaboration, customer empathy, equality, and inclusion.

Who you are:

• 4+ years of experience working with Mid-market / Enterprise accounts with a track record for building and nurturing relationships with multiple stakeholders in an account
• Already experimented with AI in work or personal projects, and you're excited to dive in and learn fast. You're hungry to responsibly explore new AI tools and workflows, finding ways to make your work smarter and more efficient.
• An experienced marketer with a background in campaign management, CRM, digital marketing, data, or analytics.
• Familiarity with Marketing Automation technologies.
• A proven track record of advising customers or executing marketing strategies.
• Customer success or account management experience with a history of building and nurturing relationships with multiple stakeholders.
• Experience explaining how to achieve key goals using software with end users.
• A track record of creative problem-solving for customers and end users.
• Comfortable discussing and supporting commercial conversations.
• Thrives in a collaborative environment.
• Excellent organizational and project management skills.
• Excellent communication skills via phone, video conference, and email.
• Curious and eager to learn.
• Adaptable to change and comfortable working in a fast-paced environment.
• Experience with G-Suite, Gainsight, Salesforce, or similar tools.
• Fluent in French and English to business proficiency

We use Covey as part of our hiring and / or promotional process. For jobs or candidates in NYC, certain features may qualify it as an AEDT. As part of the evaluation process we provide Covey with job requirements and candidate submitted applications. We began using Covey Scout for Inbound on April 3, 2025.

Please see the independent bias audit report covering our use of Covey here

Get to Know Klaviyo

We're Klaviyo (pronounced clay-vee-oh). We empower creators to own their destiny by making first-party data accessible and actionable like never before. We see limitless potential for the technology we're developing to nurture personalized experiences in ecommerce and beyond. To reach our goals, we need our own crew of remarkable creators—ambitious and collaborative teammates who stay focused on our north star: delighting our customers. If you're ready to do the best work of your career, where you'll be welcomed as your whole self from day one and supported with generous benefits, we hope you'll join us.

AI fluency at Klaviyo includes responsible use of AI (including privacy, security, bias awareness, and human-in-the-loop). We provide accommodations as needed.

By participating in Klaviyo's interview process, you acknowledge that you have read, understood, and will adhere to our Guidelines for using AI in the Klaviyo interview Process. For more information about how we process your personal data, see our Job Applicant Privacy Notice.

Klaviyo is committed to a policy of equal opportunity and non-discrimination. We do not discriminate on the basis of race, ethnicity, citizenship, national origin, color, religion or religious creed, age, sex (including pregnancy), gender identity, sexual orientation, physical or mental disability, veteran or active military status, marital status, criminal record, genetics, retaliation, sexual harassment or any other characteristic protected by applicable law.

IMPORTANT NOTICE: Our company takes the security and privacy of job applicants very seriously. We will never ask for payment, bank details, or personal financial information as part of the application process. All our legitimate job postings can be found on our official career site. Please be cautious of job offers that come from non-company email addresses ), instant messaging platforms, or unsolicited calls.

By clicking "Submit Application" you consent to Klaviyo processing your Personal Data in accordance with our Job Applicant Privacy Notice. If you do not wish for Klaviyo to process your Personal Data, please do not submit an application.You can find our Job Applicant Privacy Notice here and here (FR).