Petri Lahdelma is a Design Systems Lead and founder focused on shipping production-grade systems, AI workflows and adoption loops that stick.
Previously Design System Lead at SAP Build Apps. Built governance, component contracts and decision records to reduce drift.
From Turku, based in Helsinki, Finland.
Design × AI
Design systems, governance and AI workflows that ship.
I build the spine: tokens -> components -> patterns -> governance -> adoption. AI accelerates the workflow; quality and accessibility stay non-negotiable.
Selected projects
View all projects →Writing
- Design systems in the AI era
What changes, what stays the same and what teams should do now.
- Design systems for bots: UI contracts that AI agents can't misinterpret
When AI agents touch your product, vague design systems create broken UI at machine speed.
- Enterprise UX that ships
Tokens -> patterns -> governance as a delivery engine.
Receipts
Scaled design systems
Tokens -> components -> governance for enterprise teams.
AI workflow acceleration
Prototyping and delivery speed without losing craft.
Shipped products
From research to production with measurable outcomes.
Speaking + teaching
Workshops and talks that make teams move faster.
Focus
- Systems thinker: tokens to components to governance.
- AI as workflow acceleration, not a gimmick.
- Accessibility and quality as defaults.
Availability
Find what matters to you
All audiences →Pick your role. Get the proof, resources, and next steps that fit.
- Senior leadership: DS + DesignOps + adoption
- Evidence-first case studies (no fluff)
- Can operate across design + engineering
- Clear contribution model + developer DX
- Figma<->React alignment that reduces churn
- Governance that does not slow shipping
- Quality + consistency at scale
- Adoption loops that work in reality
- Accessibility as default
- Reduce product entropy early
- Build reusable UI foundations fast
- AI-assisted workflow acceleration (with guardrails)
Flagship case study
View all work →- Raised WCAG AA compliance from ~65% to 98% across city digital services
- Shared components adopted by 12+ city departments, eliminating ~40% of duplicated UI work
- Cut new service launch time from 3 months to 6 weeks with pre-built accessible patterns
Toolbox
All resources →If you need a systemic design leader
Fewer one-off solutions, more compounding velocity. Let's scope it.