Senior Customer Success Manager

At Mimecast, our mission is to protect the world from cyber threats — and we know that our customers are at the heart of everything we do. That’s where you come in.

We’re looking for a Senior Customer Success Manager to join our Customer Excellence team — someone who thrives on building trusted relationships, driving adoption of innovative technology, and delivering a customer experience that’s second to none.

You’ll be the go-to advisor for your customers, helping them get the most out of Mimecast’s products, guiding them through their journey to value, and making sure they have everything they need to succeed. Your work will directly contribute to customer satisfaction, retention, and advocacy — creating customers for life and champions of Mimecast.

What You'll Be Doing

• Building strong, long-term partnerships with your customers — understanding their goals, challenges, and how Mimecast can help them succeed.
• Developing tailored Success Plans that map the customer journey and drive measurable results.
• Getting hands-on with Mimecast’s product suite to help customers maximise adoption, usage, and value.
• Advising on the latest cybersecurity threats and how to mitigate them using Mimecast solutions.
• Proactively managing your customer portfolio — monitoring health metrics, spotting opportunities, and reducing churn risk.
• Collaborating closely with Sales, Professional Services, and Support to deliver a seamless customer experience.
• Acting as the voice of the customer internally, sharing insights to shape product and service improvements.

What You'll Bring

• 5–7 years’ experience in Customer Success or Account Management within SaaS or technology.
• Proven track record of influencing customer outcomes and driving adoption.
• Strong technical aptitude and willingness to learn new technologies.
• Excellent communication skills, with experience working with stakeholders from technical teams to C-suite.
• A data-driven mindset — confident using metrics to inform decisions.
• Experience in the cybersecurity space is a plus.
• Familiarity with Salesforce, Gainsight, or similar tools is desirable.

Why Mimecast?

You’ll be joining a global leader in email security and cyber resilience, working with talented people who care deeply about what they do. We offer a supportive, inclusive environment where your ideas are valued and your career growth is a priority.

The base salary range for this position is £56,000- £84,000 + benefits. This reflects the minimum and maximum target for new hire salaries for this position. This position may also be eligible for incentive plans and other related benefits. Our salary ranges are determined by role, level, and location. These factors and individual capabilities will also determine the individual pay offered.

DEI Statement

Cybersecurity is a community effort. That’s why we’re committed to building an inclusive, diverse community that celebrates and welcomes everyone – unless they’re a cybercriminal, of course.

We’re proud to be an Equal Opportunity and Affirmative Action Employer, and we’d encourage you to join us whatever your background. We particularly welcome applicants from traditionally underrepresented groups.

We consider everyone equally: your race, age, religion, sexual orientation, gender identity, ability, marital status, nationality, or any other protected characteristic won’t affect your application.

Due to certain obligations to our customers, an offer of employment will be subject to your successful completion of applicable background checks, conducted in accordance with local law.