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Posted May 4, 2026

Experienced Account Manager – Third-Party Marketplace Seller Development & E-Commerce Growth (Remote, Brazil)

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About arenaflex

At arenaflex, we're on a bold mission to become the most customer-centric company on the planet. Every day, we work to build the definitive destination where people can discover, explore, and purchase virtually anything online. We're not just operating an e-commerce platform—we're shaping the future of global commerce, creating opportunities for millions of sellers to reach customers around the world, and redefining what's possible in the digital marketplace.

If you're someone who thrives in a fast-paced, entrepreneurial environment and wants to be part of a team that's transforming how the world shops, arenaflex is the place for you. We're looking for driven, passionate individuals who bring energy, creativity, and a customer-first mindset to everything they do. Here, your contributions matter, your ideas shape outcomes, and your career trajectory is limited only by your ambition.

We're currently seeking a dynamic and results-driven Account Manager to join our growing Third-Party (3P) Marketplace team in Brazil. This is a fantastic opportunity for professionals who are excited about e-commerce, passionate about helping sellers succeed, and ready to make a meaningful impact in one of the world's most vibrant digital marketplaces.

Position Overview

As an Account Manager on our 3P Marketplace team, you'll be instrumental in expanding our seller ecosystem and enhancing the product selection available to customers across Brazil and beyond. This role is chartered with acquiring, developing, and managing high-value seller relationships that bring new product categories, competitive pricing, and unparalleled convenience to our customers.

You'll be responsible for identifying market gaps, executing go-to-market (GTM) strategies, and recruiting key marketplace players to join our platform. Your efforts will directly contribute to expanding our product selection, growing our customer base, and solidifying arenaflex as the premier e-commerce destination in Latin America.

Key Responsibilities

Your primary responsibilities as an Account Manager will span the full spectrum of seller lifecycle management. You'll serve as both a strategic advisor and a hands-on collaborator for our seller partners, ensuring they have the tools, insights, and support needed to succeed on our platform.

Seller Acquisition & Business Development

Seller Enablement & Growth

Strategic Planning & Market Analysis

Stakeholder Management

Essential Qualifications

We're looking for candidates who bring a combination of commercial acumen, relationship-building skills, and a passion for e-commerce. The ideal candidate will be a self-starter who thrives in ambiguity and enjoys the challenge of building something new.

Preferred Qualifications

While not strictly required, the following experiences and background traits will help you stand out:

Skills & Competencies

To excel in this role, you'll need to demonstrate the following core competencies:

Career Growth & Learning Opportunities

At arenaflex, we invest heavily in the growth and development of our people. This role offers exceptional exposure to the inner workings of a world-class e-commerce platform, providing you with a comprehensive understanding of marketplace dynamics, seller management, and digital commerce at scale.

You'll have the opportunity to:

We're committed to helping our employees reach their full potential through continuous learning, mentorship, and career development programs tailored to your individual goals.

Work Environment & Culture

arenaflex is a place where innovation thrives, and diversity is celebrated. We foster a collaborative, inclusive culture where every team member's voice matters. Our work environment is dynamic and fast-paced, reflecting the rapid evolution of the digital commerce landscape.

As a remote position based in Brazil, you'll enjoy the flexibility to work from home while staying connected with your team through modern collaboration tools and regular virtual interactions. We value results over rigid schedules, empowering you to work in ways that maximize your productivity and work-life balance.

At arenaflex, we believe that diverse teams build better products and create more innovative solutions. We welcome applicants from all backgrounds and are committed to providing equal employment opportunities.

Compensation & Benefits

We offer competitive compensation packages that recognize your skills, experience, and contributions. Our comprehensive benefits package includes:

Join Our Team

If you're ready to be part of something big, to challenge yourself, and to help shape the future of e-commerce in Brazil and beyond, we want to hear from you. We're looking for passionate, driven individuals who are eager to make an impact and contribute to our mission of being Earth's most customer-centric company.

This is your chance to write your own success story and be part of a team that's making history in the world of digital commerce. Apply today and take the first step toward an exciting career with arenaflex!

To apply for this position, please submit your resume and cover letter through our careers portal. We review applications on a rolling basis and encourage you to apply as soon as possible.

Interested in this role?Apply on iHire