Role Description Wir suchen dich als Senior Full Stack Entwickler (m/w/d) mit tiefem technischem Verständnis, Sinn für sauberen Code und Leidenschaft für performante, skalierbare E-Commerce-Lösungen. - Planung, Architektur und Entwicklung von Shopify Apps, Plugins und API-Integrationen - Full-Stack-Entwicklung mit modernen Technologien im Frontend (React, Next.js) und Backend (Node.js, Express, TypeScript) - Anbindung von Drittanbieter-Systemen über REST- und GraphQL-Schnittstellen - Sicherstellung von Performance, Code-Qualität und Skalierbarkeit - Umsetzung responsiver und zugänglicher UI-Komponenten - Durchführung von Code Reviews, Testing (Unit, Integration, E2E) und Debugging - Aufbau und Pflege von CI/CD-Pipelines sowie technische Dokumentation - Zusammenarbeit mit Design, Product und QA, um Produkte von Grund auf zu gestalten Qualifications - Mindestens 5 Jahre Full-Stack-Entwicklung - Sicherer Umgang mit TypeScript, React (Next.js) und Node.js (Express) - Fit in Datenbanken (SQL/NoSQL) sowie Git, Docker und CI/CD - Starkes Wissen in API-Design, Security (OAuth) und Performance - Idealerweise Kenntnisse in Shopify (Plus), Polaris, Webhooks und GraphQL - Strukturierte Arbeitsweise, Übernahme von Verantwortung und fließende Deutschkenntnisse (sowie gutes Englisch) Requirements - Hunter-Mentalität: Du willst Dinge bewegen und gibst dich nicht mit dem Standard zufrieden - Macher-Typ: Du verwaltest nicht nur, sondern treibst Projekte aktiv voran - Teamplayer: Du suchst echte Zusammenarbeit und gegenseitiges Vertrauen - Ehrgeiz: "Extrameile" ist für dich kein Fremdwort, sondern deine gewohnte Arbeitsweise Benefits - Vergütung: 50k – 80k € Fixgehalt + Provision (deine Leistung zahlt sich direkt aus) - Work-Life-Balance: 30 Tage Urlaub + extra frei am Geburtstag & Weihnachten - Flexibilität: 100 % Remote-Work oder Office in Mannheim – du entscheidest - Hardware: Bestes Apple-Equipment für entspanntes Arbeiten - Kultur: Viel Vertrauen (Ownership), flache Hierarchien und regelmäßige Events

• Collaborate closely with product, design, technology, and data science teams • Be part of the backend platform team to build new backend services, processes, and components and improve existing ones • Take a lead role in reviewing code changes within your team and provide thoughtful feedback to drive quality and best practices • Actively evaluate technologies for applications and make recommendations aligned with team and product needs • Mentor engineers at various levels, sharing your knowledge of code maintainability, performance, reliability, observability, security, and functionality • Contribute significantly to project success and team productivity • Serve as a subject matter expert (SME) within the engineering organization, providing insights to cross-functional teams • Develop and own solutions that add value across systems while balancing technical debt • Collaborate closely with engineers, product owners, and other stakeholders to align on optimal solutions that meet product goals • Lead in fostering a Test First mentality and emphasize quality at the code level • Help translate complex product requirements into clear, actionable technical tasks • Stay informed about technology trends and product roadmaps, providing strategic guidance to the development team • Actively support cross-functional business processes, facilitating collaboration and communication • Work with other senior-level stakeholders to ensure adherence to best practices, cross-team synergy, and consistency in processes • Mentor and support mid-level and junior engineers as they progress in their technical skills and knowledge • Contribute to a culture of collaboration, building strong relationships based on mutual respect and shared goals

• Design, develop, test, and maintain software applications that meet business and technical requirements. • Write clean, efficient, and maintainable code, following best practices and coding standards. • Participate in code reviews, providing and receiving constructive feedback to ensure high-quality software. • Develop and execute unit tests and integration tests to maintain system reliability. • Debug and resolve software issues, ensuring system stability and performance. • Contribute to software architecture discussions, ensuring scalability, maintainability, and security. • Utilize AI-powered tools to improve coding efficiency, debugging, and performance analysis. • Work closely with product managers, designers, and engineers to define and implement software solutions. • Collaborate with QA engineers to ensure quality, test coverage, and smooth deployments. • Integrate with APIs, databases, and third-party services to enhance functionality. • Stay aligned with Agile methodologies, participating in sprint planning, daily stand-ups, and retrospectives. • Communicate technical challenges, solutions, and progress to stakeholders and team members. • Improve system performance, scalability, and security through continuous optimization. • Utilize AI-assisted software development tools for code refactoring, auto-documentation, and testing automation. • Identify opportunities for AI-powered automation in repetitive development tasks.

• Help scale Coupa platforms as we expand and find the right balance between a consolidated codebase and microservice • Collaborate with Product and Development teams to build new features and find creative solutions to complex problems • Solve unique problems involving other teams, apply project management skills, and develop new concepts or techniques • Drive innovation by developing new concepts, techniques, and best practices