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Experienced Customer Success Manager – Brazil

Remote, USA Full-time Posted 2026-06-17

Join arenaflex, a pioneering research and product company defining the frontier of Audio AI, as we revolutionize the way people interact with technology.

About arenaflex

arenaflex is a dynamic and innovative company that is pushing the boundaries of what is possible with Audio AI. Our mission is to empower individuals and organizations to unlock the full potential of AI, and we are committed to making a lasting impact on the world. With a strong focus on research and development, we have created a range of cutting-edge products that are transforming the way people communicate, learn, and interact with technology.

Our Culture

At arenaflex, we value innovation, collaboration, and excellence in everything we do. We believe in creating a work environment that is inclusive, supportive, and empowering, where our employees can grow and thrive. We are a global team that prioritizes talent over location, and we offer a range of benefits and opportunities that will help you achieve your goals and make a meaningful contribution to our mission.

About the Role

We are seeking an experienced Customer Success Manager to join our team in Brazil. As a key member of our Customer Success team, you will be responsible for developing and executing a scalable CS playbook and framework that supports our customers in the Brazil region. You will build, maintain, and own strong relationships with a book of 40-50 enterprise clients, drive long-term adoption of multiple products, and monitor customer usage and adoption to identify areas for improvement or revenue expansion.

Key Responsibilities

* Develop and execute a scalable CS playbook and framework that supports our customers in the Brazil region

  • Build, maintain, and own strong relationships with a book of 40-50 enterprise clients
  • Play a key role in onboarding new clients and driving long-term adoption of multiple products
  • Monitor customer usage and adoption of our products to identify areas for improvement or revenue expansion
  • Own expansion and renewal of accounts within your book of business
  • Own your customer success KPIs (NRR/GRR) and contribute to CS OKR goals

Requirements

* 5-7 years of previous experience in Customer Success in a fast-paced, SaaS organization

  • Experience demonstrating and unlocking value for customers with technical, mission-critical products (such as conversational AI)
  • Commercial experience – you will own renewals and expansion for your book of business, driving towards best-in-class NRR results
  • Demonstrates a strong builder mindset with a relentless focus on customer excellence and scalable product solutions
  • Exceptional communicator with the ability to establish, nurture, and maintain relationships across all levels of customer organizations, including complex stakeholder environments
  • Strong analytical thinker and creative problem-solving skills to address diverse customer challenges and drive optimal outcomes
  • Must be fluent in Brazilian Portuguese and English

What We Offer

* Learning & Development: Annual discretionary stipend towards professional development

  • Social Travel: Annual discretionary stipend to meet up with colleagues each year, however you choose
  • Annual Company Offsite: We bring the entire company together at a new location every year
  • Co-Working: If you’re not located near one of our main hubs, we offer a monthly co-working stipend
  • Innovative Culture: You’ll be part of a generational opportunity to define the trajectory of AI, surrounded by a team pushing the boundaries of what’s possible

How We Work

* High-Velocity: Rapid experimentation, lean autonomous teams, and minimal bureaucracy

  • Impact Not Job Titles: We don’t have job titles. Instead, it’s about the impact you have. No task is above or beneath you.
  • AI First: We use AI to move faster with higher-quality results. We do this across the whole company—from engineering to growth to operations.
  • Excellence Everywhere: Everything we do should match the quality of our AI models.
  • Global Team: We prioritize your talent, not your location.

Why Join arenaflex?

* Be part of a pioneering company that is revolutionizing the way people interact with technology

  • Work with a talented and diverse team that is passionate about innovation and excellence
  • Enjoy a range of benefits and opportunities that will help you achieve your goals and make a meaningful contribution to our mission
  • Have the opportunity to work on cutting-edge products that are transforming the way people communicate, learn, and interact with technology

How to Apply

If you are a motivated and experienced Customer Success Manager looking for a new challenge, please submit your application, including your resume and a cover letter, to [insert contact information]. We look forward to hearing from you! Apply for this job

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