Principal Customer Engineer

C-Serv

1d•Remote

About The Position

This is a rare founding hire opportunity to build an AI security services practice across North America from the ground up. You will have the independence of a startup, backed by the resources and brand of a major global security organization. The AI security platform is a category leader, and the Fortune 500 customer base is already established. This role is crucial for turning that into a successful services motion. You will act as the liaison between customers, engineers, and sales teams, ensuring long-term customer success, validating the technology in high-stakes environments, and shaping the future of the North America practice. You will operate with founder-like autonomy, supported by a large enterprise, with a clear path to lead the practice as it grows.

Requirements

8+ years in a senior post-sales technical role (customer engineering, solutions architecture, professional services, or security consulting at a principal level).
Deep, credible knowledge of AI and ML security, including adversarial attacks, prompt injection, data poisoning, model inversion, supply-chain risk, and the threat landscape for LLMs and agentic systems.
Proven track record of owning enterprise customer relationships and outcomes from initial deployment through expansion.
Comfortable operating across the full sales cycle, maintaining technical credibility with both CISOs and security engineers.
Demonstrated delivery leadership, including scoping, leading, and closing complex technical engagements with enterprise clients.
Entrepreneurial mindset: energized by building from a blank page and comfortable creating processes as you go.
Commercial acumen: understanding of deal mechanics, pipeline, and sales objectives.
Curiosity: a genuine interest in emerging technology and personal experience building with AI systems.
Owner's instinct: accountability for the long-term success of initiatives.

Nice To Haves

Hands-on experience securing LLM deployments in enterprise environments (RAG architectures, agentic frameworks, fine-tuning, and their security considerations).
Background in offensive security, red teaming, or adversarial ML research.
Familiarity with AI governance and compliance frameworks (NIST AI RMF, EU AI Act, ISO 42001, SOC 2).
Domain depth in a regulated vertical (financial services, healthcare, defense, or critical infrastructure).
Public presence (speaking, writing, research, or a recognized reputation in AI security).
Experience establishing a practice, service line, or methodology from inception.

Responsibilities

Own the long-term success of enterprise customers post-go-live, focusing on adoption, expansion, renewal, and measurable risk reduction.
Lead the delivery of AI security engagements, including threat modeling, guardrail design, red-team exercises, control frameworks, and implementation advisory.
Embed with customer security and engineering teams to translate AI risk exposure into tangible, defensible outcomes.
Develop clear, executive-ready narratives from delivery findings to drive decision-making.
Serve as the senior technical voice in enterprise sales cycles, presenting and defending the platform and services to CISOs, security architects, and engineering leaders.
Lead discovery processes to identify real risk exposure and build compelling cases for the platform and associated services.
Collaborate with sales on scoping, solution design, and proposals for complex Fortune 500 deals.
Contribute to shaping the strategy, roadmap, and success of the AI security offering in North America.
Define repeatable delivery methodologies and provide field-based feedback to product development.
Lay the groundwork for the North America team and grow into a leadership role as the function scales.