ALEX R. — PRODUCT ENGINEER / FULL-STACK DEVELOPER
Germany | 100% remote | Rotfuss.aro@gmail.com | https://github.com/Koyogtre

SUMMARY
Product-minded full-stack engineer who designs and builds SaaS products, internal business tools and operational mobile applications. Can own product structure, UX, frontend, backend, data, deployment and release hardening. Prefers direct written communication, visible proof and clearly documented limitations.

BEST-FIT ROLES
- Product Engineer
- Full-Stack Developer
- Product-minded Software Engineer
- Remote roles with meaningful product ownership

CLIENT FIT
- SaaS products
- Internal business tools and operational workflows
- Flutter or native mobile applications
- Technical audits, release rescue and product completion

CORE TECHNOLOGIES
TypeScript, React, Next.js, Node.js, PostgreSQL, Prisma, Flutter, Dart, Swift, SwiftUI, Supabase, Vercel, Cloudflare

SELECTED WORK
1. QR Platform — private SaaS build, owner-reported
   Multi-tenant architecture, organization roles, plan entitlements, dynamic routing, analytics and custom-domain foundations.

2. RepoReady — working local browser demo and architecture evidence
   Deterministic repository analysis with evidence locations, severity levels and concrete next actions.

3. HoldThatThought — public Swift/macOS repository
   Native menu-bar utility with global shortcut, local persistence, automated tests, MIT license and documented distribution limitations.
   Repository: https://github.com/Koyogtre/HoldThatThought

4. Warehouse App — private Flutter build, owner-reported
   Mobile inventory, camera scanning, stock movements, low-stock visibility, team access and backend integration.

PUBLIC PROOF
- GitHub profile: https://github.com/Koyogtre
- Public repository: https://github.com/Koyogtre/HoldThatThought
- Portfolio verification center: ./verification.html
- Working browser demos: ./index.html#lab

WORKING PRINCIPLES
- Be direct, be kind and keep the promise.
- Say what is built and what is still missing.
- Surface risks early.
- Connect product decisions to implementation and release.
- Do not fabricate client names, revenue, user metrics or testimonials.

CONTACT
Rotfuss.aro@gmail.com