Customer Success Consultant [ad interim]

Who we are

Our goal at OpenUp is to make mental well-being accessible to everyone. We support companies, their employees, and employees' families with mental well-being.

Our OpenUp platform provides employees and their families access to mental well-being check-ins, online courses, articles, videos, interactive group sessions, mindfulness sessions, and a team of experienced experts. We believe that physical and mental well-being go hand in hand, and that lifestyle factors such as nutrition, sleep, and stress management are key to achieving balance. By integrating our Lifestyle Experts into the platform with a focus on nutrition, exercise and sleep, we ensure a holistic approach to health.

We strive to build high-performing teams that help people develop to their fullest potential. We take pride in raising the bar and achieving the next level.

OpenUp is ranked number 3 on LinkedIn’s Top Startups list for 2025 and continues to grow rapidly. We already support 2000+ (international) companies and 500K+ employees, including Rituals, Deloitte, Decathlon, KPMG and McDonalds.

About the role

We are looking for a senior, freelance / ad interim Customer Success Consultant to temporarily replace a team member during maternity leave.

This is a hands-on, end-to-end Customer Success role. You will take ownership of a substantial book of business and are expected to operate independently from day one. There is no ramp-up role or trainee track, we need someone who can step in and run.

You will manage approximately 125 customers and be in regular contact with them both online and offline. You are responsible for the customer relationship from post-implementation through renewal and expansion.

This role runs from April to December. We are fast growing, but at this stage, there is no guarantee or assumption of a permanent position afterwards.

What you will be doing:

• Own and manage a large portfolio of customers ranging from Medium to Large enterprises


• Drive customer value, adoption, and engagement after implementation


• Act as the primary point of contact for customers throughout the lifecycle


• Proactively manage renewals and identify expansion opportunities


• Spot renewal risk early and escalate when needed


• Balance customer advocacy with strong commercial discipline


• Work closely with our implementation, support and sales teams to ensure a seamless customer experience


• Maintain clear account plans, forecasts, and renewal visibility

About you

OpenUp loves people. We hope you do too. Engaging with people around you from all walks of life is something you like to do. You thrive when working in a team and can communicate effectively at different levels. You are enthusiastic about mental well-being, which is a topic as normal as going to the gym, and you would love to connect to this higher purpose.

You are a self-starter and always looking for ways to improve, grow and develop yourself. You enjoy working in an high-paced environment where everyone can feel a sense of belonging and create impactful ideas together. Your motto is: you can learn from setbacks and get back up, and you celebrate success! A courageous mission needs great people. Ready to join us?

This role is suited for someone who:

• Has 5+ years of experience in Customer Success, Account Management, or a similar role


• Is comfortable managing large portfolios and significant revenue responsibility


• Can operate autonomously in a fast-paced scale-up environment


• Is commercially sharp and confident in renewal and expansion conversations


• Communicates clearly and confidently at multiple stakeholder levels


• Is native Dutch speaking and fluent in English


• Is available as a freelancer or ad interim professional for the full period

Next steps

Excited about this role at OpenUp? We love to learn more about you. Send us your application through our website and we will be in touch with you soon.

At OpenUp, everyone is welcome to apply - regardless of color, age, gender, nationality or any other label. We embrace what makes you unique and we believe that a diverse team is crucial to success. If you are ready to OpenUp, join us!