I'm a full-stack engineer building AI-enabled products, serverless systems, developer tools, and frontend experiences.
I like working at the intersection of product, architecture, and implementation: turning ambiguous ideas into scoped systems, shipping the smallest useful loop, and then hardening it with clear boundaries, tests, documentation, and operational visibility.
- 🌐 Portfolio: diom.dev
- 💻 GitHub: github.com/diomari
- 🔗 LinkedIn: linkedin.com/in/diomari
- ✉️ Email: hello@diom.dev
I focus on practical software that connects product value with strong technical foundations:
- AI product systems — grounded assistants, AI agent workflows, human-in-the-loop approvals, retrieval, evaluation, cost controls, and safe automation.
- Edge-native backend — Workers, Hono, D1, R2, Queues, Durable Objects, Workflows, Workers AI, AI Gateway, and serverless deployment patterns.
- Developer tools — CLIs, coding-agent packages, project scanners, workflow helpers, and tools that improve engineering feedback loops.
- Frontend products — React, Astro, React Native, Expo, polished UI, performance-minded animation, accessibility, and maintainable component systems.
- Product engineering — scoping, architecture, requirements clarification, milestone planning, async communication, documentation, and code review.
A lot of my recent work explores how engineers can use AI without giving up judgment, maintainability, or user trust.
I keep coming back to a few principles:
- AI features should solve a workflow problem, not just add a chatbot.
- Human approval is a system concern, not a button on top of an unsafe process.
- Serverless architecture is strongest when each primitive has a clear job.
- Good developer tools make context, constraints, and uncertainty visible.
- Small, well-scoped loops beat impressive demos that cannot be operated.
- Documentation and async writing are infrastructure for remote teams.
Offline-first fishing app for offshore anglers.
JigSpot is a React Native app for Filipino anglers who fish offshore, where signal is unreliable and generic maps do not show the seafloor detail needed for jigging and bottom fishing.
- Stack: React Native, Expo, MapLibre, Cloudflare Workers, D1, TypeScript.
- Product: Offline bathymetric maps, GPS trip tracking, spot saving, catch logging, trusted-circle sharing, and conditions history.
- Offline-first: The phone is the source of truth during a trip; cloud sync is for sharing and backup.
- Maps: Vector depth contours, structure edges, target-depth highlighting, and examine-area tools for depth/slope/fishability.
- Backend: 100% serverless Cloudflare API for sync, sharing, feature gates, and account/product flows.
- Premium model: Features such as offline downloads, premium maps, broadcast, and spot limits are gated server-side.
Key idea: For field apps, the riskiest loop is often offline behavior. The product has to keep working exactly when the network disappears.
A one-line-to-embed grounded AI chat widget for websites.
Gorgi is a multi-tenant AI assistant that answers from a site's own content instead of behaving like a generic chatbot. A business signs up, adds a knowledge source, drops one script tag onto its site, and visitors get grounded answers with cost controls and tenant isolation.
- Stack: Cloudflare Workers, Hono, Workers AI, D1, React, TypeScript.
- Product loop: Create a site, add knowledge, embed one script, ask grounded questions, control usage.
- Frontend: React dashboard for client/site setup and source management.
- Embed: Tiny Shadow DOM widget designed to avoid leaking styles into host pages.
- Backend: Edge API for tenant validation, origin checks, quota checks, retrieval, answer generation, and usage tracking.
- Data model: D1 stores metadata, site configuration, source references, and usage counters.
- Isolation: Every request carries tenant/site context so one site never sees another site's content.
Key idea: Embeddable AI products should be boring on purpose: small payload, strict tenant boundaries, clear quotas, and predictable integration.
- TypeScript
- JavaScript
- Python
- NumPy/Pandas
- Node.js
- React
- React Native/Expo
- HonoJS
- NextJS
- Astro
- HTML5/CSS3
- GSAP
- Cloudflare
- AWS
- PostgreSQL
- SQLite
- AI Gateway