Caitlyn Carmabella Nayeli

Full-Stack Developer & UX Designer

Helsinki, Finland · EU work authorization

Summary

Full-stack developer and UX designer shipping production platforms end-to-end. Six months: 181,000-line enterprise marketplace (12 weeks solo), complete TTRPG platform with live video and embedded VTT (8 days), and a 32-personality AI journaling app — all live, all real users. 8+ years development, 10+ years design and product.

Core Skills

LanguagesTypeScript · JavaScript · HTML · CSS · SQL · Java · C# · Python · C/C++

FrameworksReact · React Native · Expo · Next.js · Node.js · Deno

BackendSupabase · PostgreSQL · PostGIS · REST APIs · WebSockets

PaymentsVisma Pay · Edenred · Stripe · PayPal · Square

AI & MediaClaude API · Agora voice/video · Supabase Realtime

MobileCross-platform iOS/Android/web · EAS · push notifications

DesignFigma · UX research · Usability testing · WCAG AA · i18n

Recent Projects

Bluumo — Enterprise Wellness Marketplace

Nov 2025 – Jun 2026

·Solo: 181,000 lines TypeScript, 120+ screens, 4 user types, 2 active payment providers — built in 12 weeks
·Native iOS/Android + web (Expo EAS); B2B corporate portal; AI concierge (Claude API); 3 live languages (EN/FI/SV)
·Independent security audit Jun 2026; INP improved 1,280 ms → <200 ms

Coyotes and Candles — Full-Service Creative Platform

Jun 2026 (~8 days)

·330 commits: replaced Calendly, Zoom, Patreon, Ko-fi, and Discord with one integrated platform
·Stripe + PayPal subscriptions, Agora live video, embedded VTT (D&D 5e + Shadowrun 4e), community channels

Suumio — AI Companion Journal

2025–2026

·32 Claude-powered personalities, Stripe billing (4 tiers), 32-language automated localization pipeline
·Live on iOS, Android, and web with real paying users

CarmaClouds — Multi-Platform VTT Sync

2024–Present

·Open source (175,000 lines): Chrome/Firefox extensions, Foundry VTT module, Discord bot with 20+ commands
·Custom Meteor DDP client; D&D 5e rule engine covering 50+ edge cases

Dice Cat — Tabletop Gaming Matchmaking

2024–2026

·Live on Google Play; PostGIS optimization cut query time 3–5 s → <500 ms; 10,000+ game database; encrypted messaging

Modular Website Framework

2025–2026

·3 live client deployments in 3–5 hrs each; Lighthouse 95+; 40% bundle reduction; 94.7% image compression

Professional Experience

Freelance Full-Stack Developer & UX Designer, Self-employed

Jul 2023 – Present

UX Designer (Volunteer), MNFurs

Nov 2022 – Dec 2023

Owner / Entrepreneur, Carmabella Creations

2016 – 2023

IT Consultant & Full-Stack Developer, UnVale

2021 – 2022

·Embedded consultant at early-stage startup; shipped features end-to-end in React, JavaScript, and SQL with no PM layer

IT Assistant / Researcher / Developer, Clemson University

2012 – 2016

·Built C# and Java VR applications for Human-Centered Computing research and STEM outreach
·OOP foundations across C, C++, Java, and Python applied in research software and simulations

Education

B.Sc. Information Technology, Metropolia University of Applied Sciences

Aug 2025 - 2026

UX Design Certification, Prime Digital Academy

Apr - Jul 2023

Computer Engineering / CS Coursework, Clemson University

2012 - 2016