Design systems are the infrastructure that enables great products to scale. I build them.

Samantha O’Leary

Principal UI Systems Architect & Product Engineering Leader

Design SystemsToken ArchitectureAccessibilityTypeScriptReactCSS-in-JSComponent APIsGovernanceLeadershipCross-functional

Professional Summary

Design systems are living infrastructure. My work focuses on building foundations that evolve alongside product complexity and organizational scale.

Principal UI Systems Architect with 10+ years designing and scaling SaaS-native design systems across growth-stage organizations. I build token-driven UI infrastructure that enables multi-team product organizations to scale without sacrificing semantic integrity, accessibility, or long-term maintainability.

Across QA Wolf, Acryl, and Astronomer, I have founded and long-term stewarded design systems from inception through organizational adoption, establishing semantic token architectures, contribution models, and extensible component primitives that evolve alongside product complexity.

I operate at the intersection of design and engineering, aligning system foundations with product velocity and cross-functional collaboration.

Systems Stewarded
Design Systems Leadership
WolfUI
QA Wolf
2024–Present
Apollo
Acryl Data
2024
SpectraUI
Astronomer
2019–2023

Core Competencies

  • Defined system governance frameworks, architectural review standards, and contribution pathways enabling scalable, multi-team stewardship.
  • Designed extensible UI primitives decoupled from product-specific data contracts to preserve composability and long-term adaptability.
  • Embedded accessibility principles directly into system tokens and component foundations.
  • Led cross-functional adoption across product, design, and engineering teams.
EngineeringPhilosophy
Systems Philosophy

I approach design systems as long-term infrastructure investments. Strong foundations reduce entropy, accelerate product velocity, and create shared language across teams.

My focus is not just building systems, but ensuring they scale responsibly.

Past & Present Work
Professional Experience

Staff Engineering Lead

QA Wolf | 2024–Present
  • Founded and stewarded WolfUI, QA Wolf’s design system, transforming fragmented interface patterns into a unified, token-driven infrastructure.
  • Defined semantic token architecture as the system’s source of truth, including color layers, elevation standards, spacing scales, and interaction states.
  • Established governance models and contribution workflows to support sustainable system growth.
  • Led cross-functional alignment across product, design, and engineering leadership to drive organization-wide adoption and eliminate UI fragmentation.
  • Delegated architectural ownership across senior engineers and technical leads while maintaining long-term system vision and roadmap integrity.

Engineer

Acryl Data | 2024
  • Designed and implemented Apollo, a SaaS-native design system supporting enterprise-grade data workflows.
  • Contributed to platform-level UI strategy during organizational restructure, aligning system direction with long-term company roadmap.
  • Formalized accessibility standards and usage patterns to ensure scalable, inclusive interface development.
  • Ensured UI primitives remained generic and extensible by separating presentation logic from product-level data contracts.

Principal Software Engineer +
Engineering Manager

Astronomer | 2019–2023
  • Led the creation and evolution of SpectraUI, a design system supporting Astronomer’s cloud platform and open-source ecosystem.
  • Architected foundational UI primitives and semantic token systems aligned with GraphQL-driven interfaces.
  • Managed a team of 8 engineers while establishing cross-team technical standards and system review practices.
  • Influenced multi-team engineering direction post-restructure, guiding the rebuild of core cloud UI infrastructure.
  • Embedded accessibility and semantic consistency as non-negotiable system principles.

Senior Software Engineer

Planetary | 2016–2019
  • Lead developer specializing in Node.js-based SaaS products with strong emphasis on code quality and interface excellence.
  • Oversaw product QA and engineering standards.

Lead Software Engineer

RNDPXL | 2013–2016
  • Promoted from Junior Developer to Lead Software Engineer.
  • Led website and application development across multiple platforms.

Front-End Engineer

Rocketcode | 2014–2015
  • Founding team member of early-stage startup.
  • Built Shopify themes and custom app interfaces.
Education
Bachelor of Computer Science

Full Sail University · 2019
Valedictorian + Additional Honors
National Society of Collegiate Scholars