Ultra-fast interfaces for internal tools.
Slow internal tools quietly cost companies thousands of hours of productivity every year.
I design and build ultra-fast interfaces for AI and document workflows — annotation platforms, review systems, and other tools used all day by professionals.
My specialty is eliminating workflow bottlenecks: keyboard-first interaction, zero-lag performance, and interfaces that stay fast under real workloads.
Faster interfaces mean higher throughput, fewer errors, and less user frustration.
Hire me for:
- Power-User UX (keyboard-first workflows)
- Annotation & Labeling Interfaces (RLHF / ML)
- High-Volume Document Workflows
- Data Validation & Review Tools
Typical clients include AI startups, SaaS companies, and product teams building complex internal tools.
Example HITL Tool
Gearbox HITL Data Validator
Accelerating RLHF workflows. A high-density interface built for AI specialists to validate and label massive datasets without the friction of traditional forms.
View Interactive Demo →UI Friction Audit
Find out what your slow interface is actually costing you. I’ll identify your biggest workflow bottlenecks and prototype a faster interaction model within 48 hours.
Book an AuditAbout Me
The craft of building interfaces for people who use them all day.
I'm Eric, a front-end developer specializing in high-velocity interfaces for complex internal tools. After 20 years of freelancing, I've learned that the most valuable thing a good interface can do is disappear — letting users focus entirely on their work instead of fighting their tools.
I bring a background in both development and visual craft to every project, which is why the problems I find most interesting are the ones where design and engineering decisions are inseparable. When I'm not building interfaces, I make art — which probably explains why I care as much about how something feels to use as whether it works.
Based in the Netherlands, available for projects worldwide.