Senior Backend Engineer (.NET) (f/m/d)

JOIN APALEO AND SHAPE THE FUTURE OF HOSPITALITY TECH! At Apaleo, we’re revolutionizing the hospitality industry with our AI-first property management platform, giving businesses the power to build a tech ecosystem that enhances both guest experiences and staff efficiency. With seamless integrations to hundreds of apps through the Apaleo Store, our platform simplifies operations, elevates the guest journey, and drives revenue growth. Are you ready to make an impact? We’re looking for a Senior Full-Stack Engineer (Python & .NET) (f/m/d) to join our dynamic team and help shape the future of hospitality technology! WHAT YOU’LL BE UP TO * Develop and maintain scalable backend services hosted on AWS with a strong focus on Python-based applications and AI-driven products. * Contribute to full stack development initiatives, including backend APIs and selected frontend components using TypeScript, HTML, and CSS. * Balance speed and quality, ensuring maintainable, reliable, and production-ready code without overengineering. * Mentor and support junior AI engineers by providing technical guidance, architectural feedback, and best practices. * Collaborate closely with product stakeholders, AI engineers, and cross-functional teams to deliver new AI-related products and platform capabilities. * Contribute to future platform initiatives, including potential work within the .NET-based Storefront API ecosystem. WHAT YOU’LL BRING TO THE TEAM * 5+ years of professional software engineering experience with strong backend development expertise, including advanced proficiency in Python for building scalable backend systems and production-ready services. * Experience with cloud platforms such as AWS/ Azure / GCP. * Strong understanding of software architecture, code quality practices, and engineering best practices. * Ability to work independently, take ownership of projects, and operate effectively as a senior individual contributor. * We are looking for candidates with hands-on C#/.NET development experience, given that C#/.NET 10 is our primary backend stack and key to our long-term platform strategy and flexibility. * Strong problem-solving, and collaboration skills, especially within fast-growing engineering teams. * A proactive mindset with the ability to guide junior engineers and help scale engineering excellence across the organization. Nice to Have: * Frontend development experience with TypeScript, HTML, and CSS is a plus. * Interest or experience in AI-related products, machine learning, or data engineering environments is beneficial. WHAT WE OFFER CULTURE & GROWTH * A Diverse & International Team: Work alongside passionate professionals from over 20 nationalities, bringing unique cultural perspectives, backgrounds, and experiences to shape the future of hospitality tech. * Growth & Development: As we scale, so do your opportunities. You’ll benefit from 360° feedback reviews, a dedicated learning budget, and plenty of chances to take on more responsibility. Our evolving career framework ensures you have increasing opportunities to learn new skills, advance your career, and make an impact. * Autonomy & Ownership: Great ideas can come from anywhere. We empower you to take responsibility, make decisions, and contribute directly in an environment built on trust, transparency, and collaboration. * Shape the Future of Hospitality Tech: Be part of a fast-growing scale-up transforming the hospitality industry. From day one, your work drives real impact and you’ll have the freedom to bring your ideas to life. * Competitive & Fair Compensation: We believe great work deserves great pay. Our salaries are competitive and guided by benchmarking data to ensure fairness across all roles and teams. We make sure to recognize and reward performance and contribution. PERKS & LIFESTYLE * Flexible & Remote Work Options: We focus on results, not clocking hours. You can work from home, the office or in a hybrid setup, with flexibility to adapt your schedule as long as it makes sense for your role, your team and our business. * Free Public Transport: Travel across Germany with ease using our fully covered Deutschland Ticket. * Team Connection: Strong connections fuel collaboration. We celebrate and connect through regular team dinners, company meetups, Oktoberfest celebrations, Christmas parties, and other offsite events. * Paid Time Off: Enjoy 30 days of vacation to fully disconnect, recharge, and return inspired. * Health & Wellbeing: Prioritize your health with access to hundreds of gyms, fitness studios, and wellness options through our EGYM Wellpass membership.   How you make an impact joining Apaleo: Joining Apaleo means more than just taking on a role, it’s about driving real change in the hospitality industry. Your contributions will directly shape our innovative platform, influence company-wide decisions, and help redefine the future of hospitality tech. At Apaleo, your voice matters, your ideas are valued, and your impact is tangible. Be part of a team where your work fuels progress, collaboration sparks innovation, and growth is a shared journey. We are proud to be an Equal Opportunity and Affirmative Action Employer, committed to fostering a diverse, inclusive, and welcoming workplace. We encourage applications from individuals of all backgrounds, regardless of race, color, religion, gender identity or expression, sex, national origin, age, marital status, disability, or any other characteristic protected by applicable law. Your personal data will be handled with the utmost care and in compliance with GDPR and relevant data protection regulations. We celebrate differences and believe that diversity enriches our team and drives innovation.

DEINE AUFGABE JTL zählt zu den führenden Anbietern von E-Commerce Software im deutschsprachigen Raum, mit rund 450 Mitarbeitenden in der Gruppe und mehr als 50.000 Kunden aus den unterschiedlichsten Branchen. Wir entwickeln skalierbare, flexible Lösungen für den Online-Handel der Zukunft, vom ERP-System bis zu Shop- und Marktplatz-Anbindungen.  Über das Team  Wir sind das Team Developer Platform in der Abteilung AI & Cloud Platform und bauen die Grundlagen, auf denen die anderen Engineering-Teams bei JTL aufbauen. Unsere Arbeit umfasst drei Bereiche:  * Developer Enablement: Engineering-Standards, gemeinsame Tools, CI/CD und interne Entwicklerdokumentation, die Produktteams produktiver machen * Cloud Platform Enablement: Self-Service-Bausteine für unsere First-Party-Apps – von Deployments und Infrastruktur bis hin zu Identity und API-Management * External Developer Relations: Öffentliche Entwicklerdokumentation, SDKs und CLIs, unsere öffentlichen APIs und das API-Gateway sowie Developer Community und Events AI-Enablement ist ein großer Schwerpunkt unserer Abteilung und unseres Teams: Die meisten Plattform-Features, die wir ausliefern, sind AI-first konzipiert.  Deine Aufgaben  * Du arbeitest an den aktuell wichtigsten Plattform-Themen – von Frontend über Backend bis hin zur Infrastruktur * Du entwickelst Standards, Guidelines und Best Practices für Frontend und Backend bei JTL * Du erstellst und pflegst Templates, Boilerplates und Libraries, die anderen Teams helfen, produktiver und effizienter zu arbeiten * Du unterstützt beim Bootstrapping neuer Projekte, damit unsere Standards und Toolchains von Anfang an angewendet werden * Du evaluierst regelmäßig neue Technologien und prüfst deren Nutzen für unsere Systemlandschaft WAS DU DAFÜR MITBRINGST * Mehrjährige Erfahrung in der Fullstack-Entwicklung * Sehr gute Kenntnisse in einem Stack und solide Kenntnisse im anderen: Frontend mit React und TypeScript, Backend mit .NET 8 / C# * Erfahrung mit modernen Frontend-Technologien, komponentenbasierter Entwicklung, State Management und Testing * Fundierte Kenntnisse in der Backend-Entwicklung, insbesondere mit CQRS, Domain-Driven Design (DDD) und API-Entwicklung * Erfahrung mit GraphQL sowie Docker und modernen Entwicklungs- und Kollaborations-Workflows (Git, Pull Requests, Code Reviews) * Ausgeprägte Kommunikationsfähigkeiten und Freude daran, Standards und Best Practices teamübergreifend voranzutreiben * Fundiertes Verständnis von AI-gestützter Entwicklung und Interesse an AI-first-Produkten und -Plattformen. * Verhandlungssicheres Englisch in Wort und Schrift Nice to have * Erfahrung mit Terraform und einem Hyperscaler (idealerweise Azure) * Kenntnisse in Micro-Frontends, CI/CD-Pipelines (GitHub Actions), Kubernetes und Helm * Erfahrung mit Infrastructure as Code (IaC), GitOps und Argo WAS WIR DIR BIETEN * Remote-first innerhalb Deutschlands mit der Möglichkeit, bis zu 180 Tage pro Jahr aus berechtigten Ländern remote zu arbeiten * Essenszuschuss von bis zu 115 € netto pro Monat * Zuschuss für die ergonomische Ausstattung deines Homeoffice * Regelmäßige Teamevents, unternehmensweite Treffen sowie Sommer- und Weihnachtsfeiern * EGYM Wellpass und JobRad-Zuschuss * Vermögenswirksame Leistungen und betriebliche Altersvorsorge