Experienced Customer Success Manager – Brazil

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 trailblazing company that has been making waves in the tech industry since its inception in January 2023. With a mission to push the boundaries of what's possible with Audio AI, we've developed cutting-edge technology that has captured the hearts of millions of individuals and leading developers worldwide. Our innovative solutions enable people to read articles, voice over their videos, and reclaim voices lost from disability, while also empowering businesses to create Conversational AI agents for support, sales, and education. In January 2025, we raised a staggering $180 million Series C round, valuing arenaflex at $3.3 billion. This significant investment has propelled us to new heights, and we're now scaling rapidly. If you're a motivated and ambitious professional looking to make a meaningful impact, we invite you to join our dynamic team.

How we work

At arenaflex, we're committed to fostering a culture that values high-velocity experimentation, lean autonomous teams, and minimal bureaucracy. We believe in empowering our team members to take ownership of their work, without the constraints of traditional job titles or hierarchies. Our AI-first approach enables us to move faster and achieve higher-quality results across all aspects of the company, from engineering to growth to operations.

What we offer

We're dedicated to providing our team members with the tools and opportunities they need to grow and thrive. Some of the benefits we offer include:

• Learning & development: An annual discretionary stipend towards professional development, so you can continue to learn and grow with us.
• Social travel: An annual discretionary stipend to meet up with colleagues from around the world, fostering a sense of community and connection.
• Annual company offsite: We bring the entire company together at a new location every year, providing a unique opportunity to connect with your colleagues and learn from each other.
• Co-working: If you're not located near one of our main hubs, we offer a monthly co-working stipend to help you stay connected and productive.
• Innovative culture: You'll be part of a generational opportunity to define the trajectory of AI, surrounded by a team that's pushing the boundaries of what's possible.

About the role

We're seeking an experienced Customer Success Manager to join our team in Brazil. As a key member of our Customer Success team, you'll play a vital role in developing a scalable CS playbook and framework that supports our customers in the DACH region. Your responsibilities will include:

• Building, maintaining, and owning strong relationships with a book of 40-50 enterprise clients in the Brazil region.
• Partnering with the CS team to drive long-term adoption of multiple products.
• Monitoring customer usage and adoption of our products to identify areas for improvement or revenue expansion.
• Owning expansion and renewal of accounts within your book of business – this is a commercial role.
• Owning your customer success KPIs (NRR/GRR) and contributing to CS OKR goals.

Requirements

To be successful in this role, you'll need:

• 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'll own renewals and expansion for your book of business, driving towards best-in-class NRR results.
• A strong builder mindset with a relentless focus on customer excellence and scalable product solutions.
• Exceptional communication skills, with the ability to establish, nurture, and maintain relationships across all levels of customer organizations, including complex stakeholder environments.
• Strong analytical thinking and creative problem-solving skills to address diverse customer challenges and drive optimal outcomes.
• Fluency in Brazilian Portuguese and English.

Why join arenaflex?

At arenaflex, we're not just building a company – we're building a movement. We're passionate about using technology to make a positive impact on people's lives, and we're looking for like-minded individuals to join us on this journey. If you're a motivated and ambitious professional who's eager to make a difference, we invite you to apply for this exciting opportunity.

How to apply

If you're ready to take your career to the next level and join a team that's pushing the boundaries of what's possible, click the link below to apply for this role. Apply to this job Apply for this job