Customer Success Manager

About 100mentorsAt 100mentors, our mission is to empower organizations to confidently embrace  GenAI and unlock its transformative potential, with practical results.Wiserwork is the AI Meeting Agent that takes care of the meeting before, during, and after its duration. Wiserwork adds skills (not just features) in the meeting, moderates in real time, keeping conversations on track, pushing for clarity, and capturing commitments as they happen. Wiserwork turns everyday meetings into effortless moments of AI empowerment. No onboarding, no tech skills needed - just show up at your meeting, and the benefits are immediate. It's the easiest way to get everyone AI-enabled, simply by participating.Beyond software, we partner with organizations through our GenAI Academy - offering our masterclasses ("GenAI for your business") that empower hundreds of corporate teams to integrate responsibly & efficiently GenAI into their everyday workflows, with measurable ROI.Once those transformations produce measurable results, we showcase them at the GenAI Summit - EMEA's largest gathering for generative AI. What started as a stage for wiserwork use cases has become the go-to event in Europe for the fastest growing AI  companies; OpenAI, Lovable, ElevenLabs, Mistral and 100 more sponsors who showcase their solutions to 5k in-person attendees and a 20k-strong digital community. The Mission of this RoleAs our Customer Success Manager, you will be the strategic partner to our clients, ensuring they gain measurable value from both our AI agent, wiserwork, and our GenAI Academy learning programs. You'll lead the CS team, define best-in-class customer journeys, and collaborate across teams to directly shape retention, adoption, and growth. What You'll OwnLead and mentor the growing team of Customer Success/ Project ManagementBuild the Customer Success foundation from the ground up; designing and owning onboarding flows, trial experiences, POCs, and renewal playbooksShape and iterate customer journeys in our AI platform; from first touch through expansion and long-term retention.Establish processes for customer relationship management: discovery, needs analysis, success planning, and feedback loops.Proactively engage customers via structured check-ins, business reviews, and tailored success strategiesDevelop pricing, upsell, and cross-sell proposals in partnership with Sales and Product.Create and deliver data-driven insights through adoption metrics, NPS, churn risk analysis, and success reporting.Partner with Product and Academy teams to translate customer feedback into continuous product and experience improvementsDrive automation and scalable workflows in HubSpot and related CS tools.Mediate escalations, turning challenges into opportunities for trust loyalty. What Success Looks LikeCustomers are retained and expanding year-over-year. Churn 130%.The CS team is performing, motivated, and growing under your leadership.Client health scores, engagement metrics, and NPS (now >+40) improve consistently.Customers see 100mentors as a trusted partner in driving learning, innovation, and measurable GenAI adoption & impact.Cultivate a founder mindset with high urgency, customer obsession, and a drive to create solutions beyond the job description. Why You'll Love This JobPersonal & Team Growth: Be part of a "rocketship". We have been doubling in revenue size every 18 months and, with wiserwork, we are setting the stage for a 15% MoM ARR growth, translating into x3 to x5 per year. Besides quantitative growth we everyday take careof qualitative growth & opportunities within our teams and for our extensive network of users & stakeholders.Positioned next to the global AI leaders. Wiserwork is positioned as the go-to-meeting agent, next to Lovable as the leading Coding Agent and ElevenLabs as the top AI Voice Agent.International exposure: Our team sells in primarily in Europe (90%), and from 2026 Q2 you will be handling our American expansion.Collaboration: You'll work alongside our team and our network of mentors: innovators in AI, education, and product design.Culture & Values: At 100mentors, we value people who think like owners, treating the company's mission as their own and building momentum together. What to Know Before You ApplyWe expect autonomy/a high sense of agency. If you prefer detailed instructions daily, this may feel uncomfortable.We move quickly and embrace change. Processes are still evolving.Clients' needs can shift rapidly. Flexibility is key. Qualifications3+ years in Customer Success or Account Management in SaaS/AI products.2+ years leading a team, would be ideal.Proficiency in HubSpot (or similar CRM/CS platforms) is a plus.Excellent written and verbal communication skills in both Greek and English.Strong data analysis skills, adoption metrics, churn risk, ROI.Ability to articulate and efficiently communicate expectations both to customers and teammates BenefitsCompetitive compensation aligned with experiencePrivate Health InsuranceStock option plan (optional after the 3-month probation period) at one of the fastest growing companies, and valuations, in the region.Flexible working hours, and flexible vacation time. We trust you.Clearly communicated employee journey, during your 1st quarter; individual OKRs→ professional upskilling → promotion & compensation planWe are growing fast. We will offer you the resources to build a team around you.Exposure to global clients and enterprise-level learning innovation.Leave your mark in a product used by thousands. Direct leadership impact in shaping the CS strategy of one of the leading AI agent tools worldwide.You will work from our HQ at the heart of Athens, with Acropolis views, good coffee and the best vibes.Work in a culture that rewards curiosity, adaptability, and ownership of outcomes.Application ProcessIf you are passionate about the intersection of technology and education and excited about shaping the future of GenAI-powered collaboration, we encourage you to "Apply Now" by submitting your resume and a cover letter. We'll review your application and get back to you with the next steps as soon as possible. For any questions, feel free to contact us at We are proud to be an equal opportunity employer, dedicated to fostering an inclusive workplace that empowers everyone to thrive.