20+ years
Building end-to-end product features and shipping in fast-moving teams.
Senior Product Engineer
Loren Johnson
Product-minded engineer building knowledge tools, collaborative UX, and growing AI-assisted workflows. I am a trusted product partner who ships from messy ideas to reliable production, and I do my best work in well-managed teams where purposeful deep-focus is protected.
2 worlds
Depth in collaboration products plus open knowledge infrastructure at Wikimedia.
Current focus
Actively experimenting with AI-assisted product workflows and practical guardrails.
How I Work Best
- High-trust, well-managed product teams where engineers can sustain purposeful deep-focus and ship consistently.
- Prototype-to-production delivery with design and product in tight, low-friction loops.
- Often the go-to engineering partner for product managers because I can translate intent into clear execution quickly.
- React and React Native systems that stay fast, testable, and maintainable through thoughtful architecture and refactoring.
- Increasingly PM-minded in AI-assisted workflows, and eager to work in teams that actively embrace these capabilities with practical guardrails.
Selected Experience
May 2023 - Present
Senior Software Engineer - Wikimedia Deutschland
Building Wikibase Suite for self-hosted MediaWiki users, especially in GLAM institutions. Delivered a Docker Compose + custom image stack for practical VPS deployment, advanced federation work across Wikibase instances, and improved large-scale data import paths.
April 2020 - May 2023
Senior Software Engineer - Hylo / Terrans Collective
Focused primarily on the React Native app, leading architecture and major refactoring while shipping full-stack features across Node.js, GraphQL, React, and React Native in a remote-first environment.
2016 - 2020
Lead Engineer + Product Owner - Hylo / Holochain
Led cross-functional delivery, product prioritization, and engineering execution across social and knowledge-oriented products.
Hypnograph
Creative video tooling focused on artists and expressive media workflows.
Voice to Knowledge Flows
Prototype systems that route stream-of-consciousness input into structured tasks, notes, journals, and project updates.
Guardrails Research
Ongoing exploration of patterns for reducing agentic AI risk while preserving utility: permissions, tool boundaries, and verification loops.
Outside Work
Filmmaker and dancer living in Berlin. Outside of product and engineering, I spend as much time as I can in forests and water, usually kayaking, hiking, or biking.