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Senior Fullstack Engineer (w/m/d) – High‑Scale Trust Signals

Confidential

Cologne, Nordrhein-Westfalen, Deutschland permanent

Posted: March 4, 2026

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Quick Summary

Senior Fullstack Engineer is responsible for designing, developing, and deploying scalable software solutions for the Trust Signals platform, working closely with cross-functional teams to ensure seamless product development and delivery.

Job Description

Trusted Shops entwickelt SaaS-Lösungen für über 40 Millionen Nutzer*innen und 30.000 Unternehmen in ganz Europa. Zu unserem Produktportfolio gehören unter anderem das Trustbadge, die Käuferschutz-Lösungen und die eTrusted Experience Feedback Plattform. Unsere Produkte sind Teil einer 25-jährigen Mission: Wir wollen Vertrauen zwischen Menschen und Unternehmen im digitalen Zeitalter ermöglichen.

Unsere Produktentwicklung ist das Products & Engineering Department, bestehend aus 15 cross-funktionalen Produktteams, verteilt auf drei Produkt-Domains (Consumer, Business und Platform), die in einem agilen Umfeld arbeiten.

Wir suchen Dich als talentierten und neugierigen Senior Fullstack Engineer (f/m/d) für unsere Platform Domain – jemanden, der in dynamischen Umgebungen aufblüht, komplexe Probleme gerne mit Code löst und stets motiviert ist, die gesamte User Experience zu verbessern.

In dieser Funktion bist Du Teil unseres Trustbadge-Teams, dessen Produkt täglich von Zehntausenden von Websites und Millionen von Nutzern*innen verwendet wird.

Deine Verantwortlichkeiten als Senior Fullstack Engineer (f/m/d):

• Entwickle moderne Web Components mit Lit und React, um das Trustbadge in großem Maßstab zu betreiben.

• Optimiere Performance und Zuverlässigkeit für eingebettete UIs auf zehntausenden Partner‑Websites.

• Sorge für nahtlose Darstellung und Kompatibilität über unterschiedliche Browser, Frameworks und Integrationsumgebungen hinweg.

• Übernimm End‑to‑End‑Verantwortung in einer „You build it, you own it“-Kultur.

• Implementiere cloud‑native Services auf AWS (z. B. Lambda, API Gateway, DynamoDB, CloudFront).

• Trage aktiv zu einer Kultur des kontinuierlichen Lernens, Wissensaustauschs und iterativer Verbesserung bei.

• Arbeite cross‑funktional zusammen, um neue Trust‑Signale, UI‑Features und Backend‑Funktionen in das Trustbadge‑Ökosystem zu integrieren.

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