← All roles

Senior Fullstack Engineer

fonio· 1. Engineering
Apply on company site
Remote€80k - €120kFull-timePosted 3mo ago

About the role

Senior Fullstack Engineer responsible for end-to-end ownership of features from idea to production in a SaaS product, working with NestJS, React, and TypeScript, with emphasis on rapid delivery and customer impact.

Responsibilities

  • Weiterentwicklung unserer Plattform in NestJS & React
  • Direkter Austausch mit Kunden (Support, Feedback, User-Tests)
  • Mittelfristig: Übernahme der Feature / Opportunity Priorisierung unserer Voice AI

Qualifications

  • Extremes Growth Mindset
  • Viel Erfahrung mit TypeScript, React und Node.js (idealerweise NestJS) in einem SaaS-Produkt
  • Pragmatismus: Features in die essenziellen Teile zerlegen, Kundennutzen schaffen
  • Deutsch als Muttersprache, fließend Englisch

Skills

Required:TypeScriptReactNode.js / NestJSGerman language

Benefits

  • €80.000-€120.000 pro Jahr
  • 100% Remote
  • Office in Wien (Lunch & Dinner included)
  • 100% Focus Time (keine regulären Meetings)
  • Unlimited Budget, wenn der ROI stimmt
  • Extremer Speed – shippen fast täglich
  • Tausende begeisterter Kunden, die das Produkt gemeinsam mit uns entwickeln.
Last updated Sep 9, 2026. Interested? Apply on the company site.

About fonio

AI calls made easy

Our AI phone assistant takes your calls around the clock, just like human staff. 100% GDPR-compliant & designed for German-language calls.

100+ more optionsAI callsAI calls made easyAppointment schedulingCRM integrationsCustomer serviceOfficeOrder processing
Company profileWebsite

More open roles at fonio