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About the Role

We are looking for a Customer Success Director to build and lead a customer success motion that helps Lightning AI customers adopt faster, expand with confidence, and renew because the product has become mission-critical. This role is both strategic and hands-on: you will lead people, own customer outcomes, create durable systems, and partner across Revenue, Product, Engineering, and Support to make success repeatable.

Responsibilities

Lead and develop a team of Customer Success Managers and/or Technical Account Managers supporting strategic and growth customers.
Own customer health, adoption, gross retention, expansion influence, renewal readiness, and executive relationship quality across your segment.
Build scalable CS operating rhythms, including onboarding, success planning, EBRs, health scoring, renewal forecasting, escalation management, and expansion handoffs.
Partner with Sales leadership to create a strong post-sale commercial motion that drives retention and identifies expansion opportunities early.
Work closely with Product and Engineering to translate customer patterns into roadmap feedback, prioritization signals, and product improvements.
Create a customer success culture that is proactive, technically curious, commercially aware, and highly accountable.
Inspect at-risk accounts, coach customer-facing teams through difficult situations, and help turn escalations into stronger long-term relationships.
Develop repeatable playbooks for technical onboarding, use-case expansion, executive engagement, renewal preparation, and adoption acceleration.

Requirements

8+ years in customer success, account management, technical account management, or post-sales leadership, including 3+ years managing teams.
Experience leading CS motions for technical, enterprise, or consumption-based products.
Strong understanding of retention, expansion, adoption, health scoring, renewal forecasting, and executive stakeholder management.
Ability to operate strategically while staying close to customers, account details, and team execution.
Experience working cross-functionally with Sales, Product, Engineering, Support, Marketing, and Revenue Operations.
Strong communication and executive presence with customers and internal leadership.
Comfort building systems from scratch in a company that is scaling quickly.
Experience in AI, cloud infrastructure, developer platforms, MLOps, data infrastructure, or enterprise SaaS.
Experience with usage-based revenue, cloud consumption, or complex technical onboarding.
Experience building a CS function through a high-growth stage.
Familiarity with ML teams, research organizations, platform engineering teams, or infrastructure buying centers.

Skills

Customer Success
Account Management
Technical Account Management
Post-sales leadership
Team management
Retention
Expansion
Adoption
Health scoring
Renewal forecasting
Executive stakeholder management
Cross-functional collaboration
Communication
Executive presence
System building
AI
Cloud infrastructure
Developer platforms
MLOps
Data infrastructure
Enterprise SaaS
Usage-based revenue
Cloud consumption
Technical onboarding
High-growth stage company experience
ML teams
Research organizations
Platform engineering teams
Infrastructure buying centers

Location

NYC
SF
Seattle
London

Work Type

Hybrid

Experience Level

8+ years in customer success, account management, technical account management, or post-sales leadership
3+ years managing teams

Salary/Compensations

$200,000—$250,000 USD

Benefits

Comprehensive Health Coverage: Medical, dental, and vision coverage for employees and eligible dependents.
Meaningful Equity: RSUs that give employees a stake in the company's long-term success.
Retirement Savings: 401(k) matching (U.S.) and pension contributions (U.K.).
Flexible Time Off: Unlimited PTO, company holidays, and floating holidays to support work-life balance.
Company-Wide Winter Break: Two weeks of company closure each winter to disconnect and recharge.
Paid Parental & Family Leave: Paid leave to support you and your family through life's important moments.
Professional Development: Annual learning and development allowance to support your professional growth.
Wellness Benefits: Wellness and work-from-home stipends to support your physical and mental well-being.
Sabbatical Program: Four weeks of paid sabbatical leave after four years of service.
Flexible Work: Flexible schedules and a hybrid work model for our office-based teams.
In-Office Meals: Complimentary meals at our office hubs.

About the Company

Lightning AI is building the platform and infrastructure that make it dramatically easier for teams to develop, train, deploy, and scale AI systems.
As the company behind PyTorch Lightning, and following our merger with Voltage Park, we bring together developer-first AI tooling with high-performance compute infrastructure for researchers, startups, and enterprises building at the frontier of AI.
We operate with a simple set of values: Move Fast, Focus, Balance, Craftsmanship, and Minimal.
We care about people who can operate with urgency, solve hard problems directly, and build with high standards without creating unnecessary complexity.

Equal Opportunity

At Lightning AI, we are committed to fostering an inclusive and diverse workplace.
We believe that diverse teams drive innovation and create better products.
We provide equal employment opportunities to all employees and applicants without regard to race, color, religion, gender, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic.
We are dedicated to building a culture where everyone can thrive and contribute to their fullest potential.