Gabriel Sperrer
Co-Founder at Sigma Squared Society
Vienna, Austria
Summary
👤
Senior🎓
Top SchoolGabriel Sperrer is a founder and senior software engineer with a decade of hands-on experience taking products from 0 to launch across web, mobile and game domains. He co-founded Freudio to modernize practice management for psychologists and leads joinfloat, an online counseling platform that has facilitated 1,000+ sessions by productizing low-barrier care pathways. Early wins in competitive programming led him straight into full-time engineering, and he’s since built core systems as a founding engineer at a YC-backed startup and shipped 0→1 fintech products as CTO integrating with Mastercard and Marqeta. Comfortable across C++, C#, and full-stack web stacks, Gabriel pairs deep technical ownership (AR algorithms, rendering engine optimizations, real-time backend systems) with people leadership—hiring and scaling engineering teams and counselor networks alike. He blends academic rigor from TU Wien with a founder’s bias for shipping and an unexpected origin story: teaching himself to code after tinkering with games on a neighbor’s laptop at age 12. Now based in Vienna, he focuses on reclaiming practitioner time through pragmatic product design and scalable engineering.
10 years of coding experience
3 years of employment as a software developer
Vienna University of TechnologyGuest Researcher, Computational Science, Guest Researcher, Computational Science at Universiteit van AmsterdamDiplom, Extended Study on Innovation, 1.0, Diplom, Extended Study on Innovation, 1.0 at TU Wien Innovation Incubation Center (i²c)
German, English, Spanish
Stackoverflow
315reputation
11kreached
9answers
2questions
Github Skills (72)
extensible10
javascript10
charts10
google-charts10
monorepo10
cli10
angular10
oop10
typescript10
build-system10
vue10
nodejs10
rxjs10
redux10
workspaces10
Programming languages (7)
Github contributions (5)
FERNman/angular-google-charts
Jun 2018 - Jun 2021
A wrapper for the Google Charts library written in Angular.
Contributions:16 reviews, 247 commits, 106 PRs in 3 years
chartsangular-google-chartsgoogle-chartsangulartypescript
GabsStudios/B-G-Journey-Website
Aug 2016 - Oct 2016
Contributions:28 PRs, 50 pushes, 23 branches in 2 months
promcssjavascriptreact
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