Founding Customer Success Manager

About Gladia

Founded in 2022 by JeanLouis Queguiner (exOVHCloud) and Jonathan Soto (exMITSigfox), Gladia builds bestinclass speech AI tools that empower businesses to deliver faster, more accurate, and innovative communication solutions worldwide.

Headquartered in vibrant tech hubs like Paris and New York City, Gladia is leading the charge in speech AI innovation. In under two years, we’ve grown exponentially, now serving over 150,000 users and 700 enterprise clients—including industry leaders like Attention, Circleback, Method Financial, and VEED.IO.

Our API supports advanced speech recognition and analysis in over 100 languages, setting a new standard for speed and accuracy across customer support solutions, voice agents, meeting assistants, and more.

Backed by worldclass investors like Sequoia Capital, New Wave, and XAnge, we recently raised $16M in Series A funding—bringing our total funding to $20.3M. This investment powers our mission to build the ultimate AI audio infrastructure for leading platforms across the globe.

We’re looking for a Customer Success Manager to own the relationship with our most strategic customers and ensure their success at every step from onboarding and integration to value realization and expansion.

You will be the main point of contact for technical and product teams, helping them understand, adopt, and scale with our API. This role is handson and crossfunctional: you’ll work closely with Sales, Product, and Engineering to drive customer outcomes.

We’re an APIfirst company, so we’re looking for someone who thrives in a technical environment and who’s obsessed with customer value and product usage.

Role

Own the Customer Lifecycle

• Lead endtoend onboarding for new accounts: setup, training, integration, and early activation

• Monitor usage and proactively support customers to drive adoption and minimize friction

• Conduct regular checkins and business reviews (QBRs) to highlight ROI and growth opportunities

• Be a Strategic Partner

  • Become a trusted advisor to technical stakeholders, product leads, and executives

  • Collaborate with Sales on expansion plans, renewals, and upsells

  • Understand each customer’s goals and help them get there faster with Gladia

  • Bring Technical Confidence

    • Support API integration questions and help clients navigate our documentation

    • Troubleshoot integration issues and escalate to SupportEngineering when needed

    • Understand data flows, API logic, and use case constraints

    • Build and Scale

      • Improve our playbooks, onboarding flows, health monitoring and CS tooling

      • Provide structured feedback to Product to help prioritize features

      • Help define and improve internal CS metrics and operational processes

      • Profile

        • 46+ years in Customer Success, Solutions Engineering, or Technical Account Management

        • Previous experience in an APIfirst or developerfacing product is a must

        • You’re obsessed with client satisfaction and retention: spotting risks before they happen, ensuring customers get maximum value from our product, and building longterm, trustbased relationships.

        • You’ve owned a book of strategic or enterpriselevel clients and driven measurable value

        • Obsessed with client satisfaction and retention

        • Excellent communicator you know how to talk to clients, product managers, developers, and execs

        • Organized, autonomous, and processdriven you’re always two steps ahead

        • Fluent in English, French is a plus

        • What Gladia offers

          • The compensation offered is based on seniority and experience, and would typically range from €50K to €75K in base salary + BSPCEs

          • Full remote policy with team gathering in Paris every 1.5 months or work from our amazing offices & rooftop in the heart of Paris (Sentier)

          • Lunch vouchers (approx. 200€month)

          • An allowance of 360 eurosyear for your sports activities

          • An allowance of 300 euros for the adaptation of your workstation

          • A health insurance (100% coverage) and a pension contract with Alan Blue for you & your family

          • Unlimited vacation policy

          • At Gladia, we thrive on creativity, collaboration, and a shared passion for pushing the boundaries. Our team is made up of brilliant AI minds, all working together to deliver solutions that make a realworld impact. Whether youre looking to solve complex challenges, innovate in a fastpaced environment, or be part of a global movement transforming communication, Gladia is the place for you !