Experienced Senior Customer Success Manager – Americas Region at arenaflex

At arenaflex, we're revolutionizing the cybertech ecosystem with a proactive approach to cyber threat management. Our mission is to develop innovative open-source solutions that anticipate cyber threats, identify security gaps, and strengthen organizational security posture. With over 6,000 public and private organizations worldwide trusting our solutions, we're on a mission to empower defense teams to be proactive through open-source solutions that uncover threats and drive action. We're seeking an experienced Senior Customer Success Manager to join our Customer Success Team in the Americas region. As a key member of our team, you'll play a crucial role in ensuring the success and satisfaction of our users throughout their journey with arenaflex. You'll collaborate closely with support, engineering, and product teams to align technical delivery with business goals, while acting as a trusted advisor to our customers.

Your Responsibilities:

* Own and manage the full customer lifecycle: onboarding, adoption, training, and renewal

• Build strong, proactive relationships with customers in the Americas
• Identify and support opportunities for upsell and cross-sell in partnership with Sales
• Coordinate with internal teams to resolve customer issues quickly and effectively
• Collaborate with Customer Support Engineers to ensure seamless communication and delivery in response to support tickets
• Collect and share customer feedback to improve product and service quality
• Track success metrics and use data to inform customer strategy and engagement

Who You’ll Work With:

* You will report to the American Head of Customer Success

• Work closely with Customer Support Engineers (CSEs), Sales, Product, and Engineering teams
• Partner with regional teams to serve a diverse customer base
• Collaborate cross-functionally to ensure high customer satisfaction and retention

Profile We’re Looking For:

* 3+ years of experience in Customer Success, Account Management, or a similar client-facing role in SaaS or tech

• Based in the United States with experience supporting national and regional customers
• Strong technical aptitude and ability to work with tools like OpenCTI or OpenBAS (training available)
• Excellent communication skills
• Comfortable in a remote, async-first culture
• Experience with CRM/CSM tools, customer journey tracking, and success metrics
• Familiarity with the cybersecurity sector, especially threat intelligence, is a plus
• Fluency in English

Why Join arenaflex? More than just a job.

We're a fast-growing, global, and fully remote company on a mission to empower defense teams to be proactive — through open-source solutions that uncover threats and drive action. We believe we do work that matters — uniting defenders into a global community to make security more open, resilient & collaborative.

What We Believe:

* We believe we do work that matters — uniting defenders into a global community to make security more open, resilient & collaborative.

• We believe that focus, clarity, and high standards are essential to achieving our mission.
• We believe that care and respect are essential to building strong relationships with our customers and colleagues.

How We Work:

* We work with a focus on our mission and a clarity of purpose.

• We set high standards for ourselves and strive to exceed them.
• We care about our customers and colleagues, and we show it through our actions.

What Guides Us:

* Our CORE values: Cohesion, Openness, Responsibility, and Equity — the compass that guides our decisions, collaborations, and growth, even when no one’s watching.

Compensation & Benefits:

* Competitive pay + equity — everyone shares in our success

• Remote-first, flexible, and balanced — work that fits your life
• Your setup, your choice — pick the gear that works for you

Equal Employment Opportunity:

We enable cybersecurity through inclusion — from code to culture. At arenaflex, we are proud to be an equal opportunity employer. We believe diversity of our people make our products and our team stronger. We welcome talent of every background, identity, and lived experience — regardless of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, age, disability, or veteran status.

Ready to Join Us?

Apply now and help us build the future of the cybersecurity ecosystem — together. Apply for this job