Principal Customer Success Engineer – AI Infrastructure and Generative AI Applications

At arenaflex, we're revolutionizing the world of Artificial Intelligence (AI) with our cutting-edge wafer-scale architecture, delivering unparalleled AI compute power and programming simplicity. As a Principal Customer Success Engineer, you'll play a pivotal role in ensuring the success of our strategic customers, guiding them to unlock the full value of our systems and services. If you're a seasoned customer-facing technologist with a passion for Generative AI models and applications, AI infrastructure, and customer enablement, we invite you to join our growing Customer Success and Support team.

About arenaflex

arenaflex is a trailblazer in the AI industry, pushing the boundaries of what's possible with our innovative technology. Our novel wafer-scale architecture provides the AI compute power of dozens of GPUs on a single chip, with the programming simplicity of a single device. This approach allows us to deliver industry-leading training and inference speeds, empowering machine learning users to effortlessly run large-scale ML applications without the hassle of managing hundreds of GPUs or TPUs. Our current customers include global corporations across multiple industries, national labs, and top-tier healthcare systems, and we're committed to transforming AI applications across various fields.

Key Responsibilities

As a Principal Customer Success Engineer, you'll be responsible for driving technical success across a portfolio of high-value accounts, guiding onboarding, integration, performance optimization, and production scaling. You'll serve as the go-to technical partner for customer engineering teams, collaborating closely with internal stakeholders in Product, Engineering, Sales, and Support. Your key responsibilities will include:

Drive technical success of arenaflex customers:

+ Serve as the technical lead throughout the customer journey—from onboarding to production scaling—ensuring smooth deployment and long-term value realization. + Partner with customers to uncover new opportunities where arenaflex products can drive value, from scaling existing AI workloads to enabling novel applications. + Architect integrations and deployment plans aligned with customer goals.

Serve as a trusted advisor and technical escalation point for our customers:

+ Provide architectural guidance and best practices for GenAI workflows and applications, model deployment, and performance optimization. + Collaborate directly with customer engineering teams to optimize performance, debug complex issues, and remove blockers. + Work closely with Support and Engineering teams to manage escalations and drive fast, effective resolution of critical issues.

Partner cross-functionally to champion the customer experience:

+ Share field insights with Product and Engineering to inform roadmap decisions. + Work with Sales and Solution Architects to align on customer success plans and identify growth opportunities. + Collaborate with Marketing to highlight successful deployments and customer impact.

Mentor and elevate the broader Customer Success and Support team:

+ Provide technical leadership, documentation, and reusable assets to scale success across the organization. + Contribute to internal playbooks and onboarding for Customer Success Engineers and Support Engineers.

Skills and Qualifications

To succeed in this role, you'll need:

• A Bachelor's or Master's degree in a technical field such as Computer Science, Electrical Engineering, or related discipline.
• 10+ years of professional experience, with 5–7+ years in customer-facing technical roles (e.g., Customer Success Engineering, Solutions Engineering, Technical Account Management).
• A strong foundation in LLM inference workloads, AI/ML systems, distributed computing, and infrastructure.
• Experience deploying and optimizing LLM inference workloads, with a solid understanding of latency, throughput, and token-level performance metrics, as well as inference toolchains, APIs, and optimization techniques relevant to large-scale model serving.
• Exceptional communication and collaboration skills; ability to interface with developers, architects, and executive stakeholders.
• Comfortable leading complex technical discussions and resolving high-severity issues in real time.
• Passion for customer advocacy and delivering measurable impact through high-touch engagement.

Why Join arenaflex

People who are serious about software make their own hardware. At arenaflex, we've built a breakthrough architecture that's unlocking new opportunities for the AI industry. With dozens of model releases and rapid growth, we've reached an inflection point in our business. Members of our team tell us there are five main reasons they joined arenaflex:

• Build a breakthrough AI platform beyond the constraints of the GPU.
• Publish and open source their cutting-edge AI research.
• Work on one of the fastest AI supercomputers in the world.
• Enjoy job stability with startup vitality.
• Our simple, non-corporate work culture that respects individual beliefs.

Career Growth Opportunities and Learning Benefits

As a Principal Customer Success Engineer at arenaflex, you'll have the opportunity to:

• Work with a talented team of engineers, researchers, and innovators who are passionate about AI and its applications.
• Collaborate with customers to drive business outcomes and deliver measurable impact.
• Contribute to the development of our AI platform and infrastructure.
• Participate in internal training and development programs to enhance your skills and knowledge.
• Enjoy a competitive compensation package, comprehensive benefits, and a generous stock option plan.

Work Environment and Company Culture

arenaflex is committed to creating an inclusive and diverse work environment that empowers people to do their best work. We celebrate different backgrounds, perspectives, and skills, and believe that inclusive teams build better products and companies. Our simple, non-corporate work culture respects individual beliefs and encourages collaboration, creativity, and innovation.

Compensation, Perks, and Benefits

arenaflex offers a competitive compensation package, comprehensive benefits, and a generous stock option plan. We're committed to providing a supportive and inclusive work environment that empowers our employees to thrive.

Apply Today

If you're a seasoned customer-facing technologist with a passion for Generative AI models and applications, AI infrastructure, and customer enablement, we invite you to join our growing Customer Success and Support team. Apply today and become part of the forefront of groundbreaking advancements in AI! Apply for this job