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Shopify apps powering 3.000+ merchants
Senior Full Stack Entwickler/in, Vollzeit
Location
Germany
Posted
111 days ago
Salary
€50K - €80K / year
Seniority
Senior
Job Description
Senior Full Stack Entwickler/in, Vollzeit
HeroSoftware GmbH - Shopify Apps
• Planung, Architektur und Entwicklung neuer Features für unsere SaaS-Plattform (Ticket-System, AI-Automation, Multi-Channel-Inbox, Retourenportal, Help Center, Live Chat) • Full-Stack-Entwicklung mit Next.js 15 (App Router), React 19, TypeScript und PostgreSQL • Integration von KI-Modellen (OpenAI, Anthropic, Google GenAI) inkl. Function Calling, RAG und Streaming • Anbindung von Drittanbieter-Systemen (Shopify, Stripe, Gmail, WhatsApp, Instagram, Messenger, Slack, DHL, JTL, Klaviyo) über REST- und GraphQL-Schnittstellen • Entwicklung und Optimierung unserer Multi-Channel-Kommunikation (E-Mail, WhatsApp, Instagram DMs, Facebook Messenger, Live Chat) • Sicherstellung von Performance, Code-Qualität und Skalierbarkeit in einer Multi-Tenant-Architektur • Umsetzung moderner UI-Komponenten mit Tailwind CSS v4, Radix UI und Framer Motion • Mitarbeit an unserem Visual Workflow Builder (ReactFlow) für automatisierte Antwort-Logiken
Job Requirements
- Mindestens 3 Jahre Erfahrung in der Full-Stack-Entwicklung
- Sehr gute Kenntnisse in TypeScript, React, Next.js (App Router) und Node.js
- Solides Know-how im Umgang mit PostgreSQL (Queries, Migrations, Connection Pooling)
- Erfahrung mit REST- und GraphQL-APIs sowie OAuth2-Flows
- Verständnis für AI/LLM-Integration (OpenAI API, Streaming, Function Calling) – oder starke Bereitschaft, dich einzuarbeiten
- Erfahrung mit Tailwind CSS und komponentenbasierten UI-Bibliotheken (Radix UI, Shadcn o.ä.) (Bonus)
- Erfahrung mit Shopify APIs, Stripe Billing, Cloudflare R2, oder Messaging-APIs (WhatsApp Business, Instagram Graph API) (Bonus)
- Kenntnisse in Vektordatenbanken (Qdrant) und RAG-Systemen
- Selbstständige, strukturierte und lösungsorientierte Arbeitsweise
- Freude an Teamarbeit, technischem Austausch und Verantwortung
- Deutsch auf Muttersprachenniveau + gutes Englisch in Wort & Schrift
Benefits
- 30 Tage Urlaub + Geburtstag & Weihnachten frei
- Maximale Ownership und Vertrauen
- Motiviertes Team & leistungsstarkes Umfeld
- Flache Hierarchien mit kurzen Entscheidungswegen
- 100 % Remote, Office in Mannheim möglich
- Team Events & Off Sites
- Beste Apple Hardware
- Arbeit mit einem modernen Tech-Stack (Next.js 15, React 19, AI/LLM-Integration, Multi-Channel-Architektur)
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