Leader profile

Andrew Bialecki

Andrew Bialecki is a co-founder of Klaviyo and has served as a member of our board of directors since September 2012 and as our co-Chief Executive Officer since January 2026.

Current role

Role: CEO
Company: Klaviyo
Official link: https://www.linkedin.com/in/bialecki

Recent viewpoints

AI can close the gap between software capability and actual usage

Bialecki says AI can help customers use capabilities that already exist in software but are normally accessible only to highly skilled users, while also completing work users lack the time or expertise to perform.

Andrew Bialecki AI Product Adoption Source at 7:31

Production agents need constrained access, sandboxing, testing, and scale validation

Bialecki distinguishes easy agent prototypes from reliable production systems, emphasizing restricted tool access, sandboxed staging environments, software validation, edge-case testing, and load testing.

Andrew Bialecki Production Agent Engineering Source at 9:31

Dark Factory decomposes complex software projects into coordinated agent work

Klaviyo's Dark Factory takes an initial prompt, produces specifications, decomposes the system into engineering subsystems, defines contractual API interfaces, and assigns component work to sub-agents.

Andrew Bialecki Dark Factory Source at 12:30

Agent-driven prototyping can compress substantial builds into a weekend

Bialecki says Klaviyo used its Dark Factory pattern to produce the first prototype of its free-form marketing agent over a weekend and then iterated on that foundation.

Andrew Bialecki Dark Factory Source at 14:11

Agents should escalate uncertain decisions instead of requiring complete upfront plans

Bialecki describes a human-in-the-loop model where agents continue working autonomously but raise questions whenever requirements or decisions are ambiguous, allowing humans to resolve uncertainty incrementally.

Andrew Bialecki Human-in-the-Loop Development Source at 14:40

Recent interviews

Agents Are Your New Power Users: How Klaviyo CEO Andrew Bialecki Is Remaking a $1.4B Business

Aug 14, 2026

Major topics

Design IterationLast interview Aug 15, 2026 TypographyLast interview Aug 15, 2026 InternationalizationLast interview Aug 15, 2026 Visual PrototypingLast interview Aug 15, 2026 Logo DesignLast interview Aug 15, 2026 Project PlanningLast interview Aug 15, 2026 Creative CollaborationLast interview Aug 15, 2026 Meaningful DesignLast interview Aug 15, 2026 Accessible ComputingLast interview Aug 15, 2026 Design ConstraintsLast interview Aug 15, 2026