Senior Full Stack Developer
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Job Description
Senior Full-Stack-Entwickler für Shopify-Apps bei HeroSoftware, einer Softwarefirma für Shopify-Händler. Entwicklung skalierbarer E-Commerce-Lösungen mit React, Node.js und TypeScript.
Responsibilities:
- Plan, architect, and develop Shopify apps, plugins, and API integrations
- Full-stack development with React, Next.js, Node.js, Express, and TypeScript
- Integrate third-party systems such as ERP, payment, CRM, and logistics platforms via REST and GraphQL interfaces
- Ensure performance, code quality, and scalability
- Build responsive and accessible UI components
- Conduct code reviews, unit, integration, and end-to-end testing, as well as debugging
- Build and maintain CI/CD pipelines and technical documentation
- Work closely with Design, Product, and QA teams to develop new products
- Mentor junior developers
- Actively contribute to the technical roadmap
Requirements:
- At least 5 years of experience in full-stack development
- Excellent knowledge of JavaScript, TypeScript, React, Next.js, Node.js, and Express
- Solid knowledge of databases such as MongoDB, PostgreSQL, or MySQL
- Proficiency with Git, CI/CD, Docker, and modern DevOps workflows
- Understanding of UX/UI, API design, security (OAuth, JWT, CORS), and performance optimization
- (Optional) Experience with Shopify app development, including Polaris, webhooks, OAuth, and the GraphQL API
- Independent, structured, and solution-oriented approach to work
- Enjoy working in a team, sharing technical knowledge, and taking ownership
- Organized and self-directed approach with clear pipeline logic
- Native-level German and good written and spoken English
- Genuine hunter mentality
- Willingness to be part of a motivated team
- Reliability and willingness to take responsibility
Benefits:
- 30 days of annual leave
- Birthday and Christmas Day off
- Maximum ownership and trust
- Motivated team and high-performance environment
- Flat hierarchies with short decision-making processes
- 100% remote, with an office available in Mannheim
- Team events and off-sites
- Premium Apple hardware
- Performance-based commission
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