Job Description

Customer Success Manager (Technical)
Location: San Francisco, CA
Work Model: Onsite, full-time
Industry: AI / Developer Tools
Compensation: $120,000–$160,000 base salary + equity

About the Company

Our partner is a fast-growing AI startup building advanced simulation and developer-focused infrastructure tools. The company recently surpassed $1M ARR with strong month-over-month growth and supports more than 80 organizations ranging from high-growth startups to large enterprises. Backed by top-tier investors, the team is small, highly technical, and deeply mission-driven.

The Opportunity

This is a rare chance to join as the first Customer Success Manager and become a founding member of our partner’s post-sales organization. You’ll work directly with engineering and AI leaders across a wide range of customers, helping them get the most value out of a deeply technical product surface area involving APIs, simulations, and LLM-based systems.

The ideal candidate has strong technical intuition, enjoys working closely with developer users, and thrives in fast-moving startup environments. You’ll own the customer relationship end-to-end—monitoring usage, unblocking technical issues, and ensuring a seamless experience from onboarding onward.

Responsibilities

• Become deeply knowledgeable about the product, APIs, and technical workflows.
• Serve as the main point of contact for customers, including developers, engineering managers, and AI leaders.
• Monitor customer usage patterns and proactively identify issues or areas for improvement.
• Troubleshoot technical questions and guide customers through implementation.
• Partner with internal engineering teams to relay customer feedback and enhance the product.
• Maintain fast, thoughtful communication with customers to ensure strong long-term relationships.
• Help shape the foundation of the Customer Success function, including processes and best practices.

Requirements

• 1–2+ years in Customer Success, Solutions Engineering, or a technical customer-facing role.
• Strong understanding of APIs, AI/LLMs, and modern developer workflows.
• Ability to communicate clearly and effectively with engineering stakeholders.
• Experience in developer tools, infrastructure, or technical SaaS environments preferred.
• Demonstrated ability to quickly understand and explain technical concepts.
• Comfortable working in a high-ownership, fast-paced startup environment.
• Willingness to work onsite daily in San Francisco (relocation support available).

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