Experienced Customer Success Lead – Behavioral Modeling and Personalization

At arenaflex, we're revolutionizing the AI revolution by democratizing access to cutting-edge technology. Our mission is to empower businesses to harness the power of AI, driving innovation and growth in the behavioral modeling and personalization space. As a rapidly growing tech company, we're assembling one of the largest consented behavioral datasets in the US, beyond the walled gardens of BigTech. This diverse understanding of consumer intent underpins a proprietary, private-by-design AI model that supercharges machine learning and marketing performance for some of the world's leading brands, agencies, and Martech / AdTech platforms. Join arenaflex and be part of a dynamic team that's shaping the future of AI and behavioral modeling.

arenaflex Highlights:

* Partnerships with industry leaders like Microsoft and Databricks

• Fully remote or hybrid work options from several hubs (Boston, SF Bay Area, Seattle, NYC)
• World-class team of Machine Learning experts who have worked on cutting-edge recommender systems and internal tools at Amazon, Uber, Twitter, Meta, and more
• Product and Go-To-Market teams who have taken ideas from concept to 9-figure revenue streams

Benefits:

* Competitive Base Salary

• Bonus structure for qualifying employees
• Meaningful equity & financial upside - a real % of the company
• Health, Dental, Vision
• Flexible PTO
• 401k

About the Role:

As arenaflex's first Customer Success Lead, you'll be responsible for ensuring campaign excellence across live programs, from onboarding, performance monitoring, and growth of client campaigns. You'll be the connective tissue between brands, partners, and internal teams, proactively driving results and providing white-glove support. Your goal: make every arenaflex campaign a success story.

Responsibilities:

* Ensure campaigns run smoothly and hit performance goals

• Translate client objectives into clear media plans, creative needs, and setup requirements
• Coordinate campaign launches and work closely with internal teams to keep everything on track
• Monitor pacing and performance, and step in with optimizations or troubleshooting when needed
• Coordinate with platforms like Nexxen, The Trade Desk, or Viant to support execution
• Keep clients informed with regular updates, performance insights, and clear next steps
• Collaborate with Sales, Product, and Engineering to resolve issues and share feedback from the field

What You Bring:

* 5 to 7 years of experience in programmatic advertising, with a strong track record of campaign delivery

• Hands-on knowledge of major DSPs, especially Nexxen, The Trade Desk, or Viant
• Experience working directly with clients and solving problems across both technical and strategic layers
• A strong understanding of how campaigns are paced, optimized, and measured
• The ability to jump into the platforms and figure things out when something's not working
• Clear communication skills and a calm, professional approach under pressure
• A bias toward action, with a knack for bringing order to fast-moving environments

We prioritize attitude, culture, and general (technical) fit over matching perfectly into one of our job descriptions. If our mission and work resonates with you, we encourage you to apply. Tell us how you can help drive our products forward, even if you don't feel like you are a perfect fit for some of the listings.

Career Growth Opportunities and Learning Benefits:

At arenaflex, we believe that every employee should be empowered to own 0-1 contributions and have the opportunity to achieve real impact - and scale that impact - on the business. As a Customer Success Lead, you'll have the chance to work with a world-class team of Machine Learning experts, Product and Go-To-Market teams, and Sales, Product, and Engineering teams to drive innovation and growth. You'll also have access to a range of learning benefits, including training programs, mentorship opportunities, and professional development resources.

Work Environment and Company Culture:

arenaflex is a dynamic and fast-paced work environment that's passionate about innovation and growth. Our company culture is built on a foundation of collaboration, creativity, and a bias toward action. We're a fully remote or hybrid team, with several hubs located in Boston, SF Bay Area, Seattle, and NYC. We prioritize flexibility, work-life balance, and employee well-being, offering a range of benefits and perks to support our team members' physical and mental health.

Compensation, Perks, and Benefits:

arenaflex offers a competitive compensation package, including a base salary, bonus structure, and meaningful equity & financial upside. We also offer a range of benefits and perks, including health, dental, and vision insurance, flexible PTO, 401k, and professional development resources.

Conclusion:

If you're a motivated and experienced professional with a passion for programmatic advertising, AI, and behavioral modeling, we want to hear from you. Join arenaflex as our first Customer Success Lead and be part of a dynamic team that's shaping the future of AI and behavioral modeling. Apply now and tell us how you can help drive our products forward. Apply for this job