Kael Krummenauer

SWE & designer.

About

CS student at CUNY Queens College and founder of Quasistellar LLC, a solo dev studio building freelance iOS and Android apps and custom websites for clients. Full-stack engineer working in Python, Dart/Flutter, React, and TypeScript across mobile engineering, database design, and AI-assisted development. Currently expanding into applied AI, building hands-on experience with RAG, LangChain, and local LLM workflows. Bilingual in English and Portuguese.

Selected works

01
Quasistellar LLC
Founded a solo dev studio building custom marketing sites, web apps, and mobile apps for small businesses.
Founder · Design · Engineering
2026
02
Abilex App
A workforce app Abilex uses to manage their security guard team in real time.
Design · Engineering
2026
Swipe
Custom-built mobile and dashboard apps that monitor every guard on every shift: location, punctuality, and presence verified in real time. Guards clock in with GPS-stamped, timestamped photo check-ins. Managers assign shifts, request live check-ins, and get automatic alerts for late arrivals, no-shows, and missed check-ins before they become the client's problem.
iOSAndroidFlutterDartFirebase
Visualize App Logic