Customer Success Manager (Mid-Market)

Vendelux is building the category-defining platform for event marketing intelligence.

Events are one of the largest and most impactful marketing channels, yet historically one of the least measurable. Vendelux brings transparency and performance to this space — helping companies discover, evaluate, and optimize their event strategy with data.

Our platform powers thousands of event decisions by delivering proprietary, AI-driven insights across hundreds of thousands of events globally. At the core of our platform is a robust ecosystem of event organizer partnerships — where organizers share first-party data, enabling richer insights for customers while receiving benchmarking and audience intelligence in return. From identifying the highest ROI conferences to enabling targeted meeting programs, Vendelux helps companies turn events into a predictable and scalable growth engine.

In addition, Vendelux Meetings extends our platform by turning insights into pipeline — using AI to identify high-value attendees and proactively book 1:1 meetings between our customers and their ideal prospects at events. This enables go-to-market teams to drive measurable ROI and maximize every event interaction.

Founded in 2021, Vendelux is a Series B SaaS company backed by top-tier investors including FirstMark. We partner with many of the fastest-growing companies in the world, and our team includes leaders from Bain, ZoomInfo, Shutterstock, FanDuel, Compass, Airbnb, Forter and beyond.

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We're looking for a Customer Success Manager (Mid-Market) who has been in the trenches of a high-growth B2B SaaS company, knows what it takes to manage a complex book of business, and is excited by the opportunity to help shape how we do Customer Success at Vendelux. If you thrive in a fast-paced, high-accountability environment and love the challenge of turning at-risk accounts into long-term champions, we want to talk.

This role is hybrid, 4 days a week in our NYC office.

What You'll Do

• Function as a true account manager across the full customer lifecycle — from onboarding and enablement through renewals, upsells, and negotiations

• Own a portfolio of accounts simultaneously, managing competing priorities with urgency and precision — expect to juggle 9+ active workstreams at any given time

• Lead structured onboarding and training programs that drive fast time-to-value and long-term product adoption

• Run proactive meeting campaigns and renewal processes, ensuring no account goes dark or falls through the cracks

• Negotiate renewals and expansions with confidence, building strong business cases that demonstrate clear ROI

• Drive retention with a relentless, creative approach — exhaust every option before accepting churn, whether that's a LinkedIn message, an in-person office visit, a free pilot extension, or bringing in leadership to save the relationship

• Travel to customer sites a minimum of 2 days per month to strengthen relationships and accelerate outcomes

• Contribute to community building across the customer base through webinars, case studies, and events

Who You Are

• 4+ years of experience in Customer Success, Account Management, or a hybrid of both — ideally at a B2B SaaS or high-growth tech company

• Proven track record of owning the full client lifecycle: onboarding, adoption, renewals, upsells, and negotiations

• Thrives in a fast-paced environment managing multiple high-priority accounts simultaneously without dropping the ball

• Relentless when it comes to retention — you get creative, you show up, and you don't give up on an account easily

• Comfortable traveling to meet customers in person and building face-to-face relationships

• Highly accountable self-starter who doesn't need to be chased for updates

• Strong communicator who can navigate difficult conversations with customers and internal stakeholders alike

Benefits

• Competitive base salary and bonus

• Equity

• Healthcare covering medical, dental and vision

• 401(k)

• Catered lunch every day in our NYC office

• Unlimited PTO plus two company-wide shutdowns during the July 4th week and the Christmas – New Year's week

Not all candidates will check all of the requirements listed above and that’s ok! We are open to great people from non-traditional backgrounds.

Vendelux is proud to be an equal opportunity workplace. We are committed to equal opportunity regardless of race, color, ancestry, religion, gender, gender identity, parental or pregnancy status, national origin, sexual orientation, age, citizenship, marital status, disability, or veteran status.