Role Description Du hast Lust, in einem der wachstumsstärksten GovTech-StartUps Deutschlands zu arbeiten und gleichzeitig einen wichtigen Beitrag dazu zu leisten, die öffentliche Verwaltung fit für die digitale Zukunft zu machen? Dann bist du für uns genau die/der Richtige! Wir von Verwaltungscloud SH suchen zum 01.10.2025 eine:n (Senior) Product Engineer (m/w/d), der unser Team in der Produktentwicklung unterstützt. Aufgaben: - End-to-End-Umsetzung von Features für unsere Produkte auf Basis von Vue3, Nest.js und MongoDB - Eigenständige Konzeption und Umsetzung von Produktteilen in enger Zusammenarbeit mit unseren Kunden aus der öffentlichen Verwaltung - Erstellung von Anforderungsprofilen zur Konzeption von Architektur und Datenmodellen für die optimale Abbildung der fachlichen Anforderungen - Erstellung von MVPs und Prototypen für Kundenpräsentationen - Erarbeitung, Dokumentation und Kontrolle der Einhaltung von Standards für unsere wachsende Codebase - Übernahme der technischen Verantwortung für einen Teilbereich unseres Produktportfolios sowie aktive Einbringung eigener Impulse bei der Weiterentwicklung Qualifications - Du bist ein Product-minded Full-Stack Engineer, der in der Lage ist, Features End-to-End umzusetzen - Du bist bereit echte Verantwortung für deine Arbeitsergebnisse zu übernehmen: You build it, you ship it, you own it! - Sehr gute Kommunikations- und Präsentationsfähigkeiten auf Deutsch und Englisch - Sehr gute Kenntnisse in Vue3, Erfahrung mit MongoDB und Nest.js - Ein Plus sind Kenntnisse in: Figma, Software-Testing, Softwarearchitektur, GithubActions, DevOps, Kubernetes, Docker oder Prozessen der öffentlichen Verwaltung - Du verfügst über mehrjährige Erfahrung in der Softwareentwicklung - Du hast eine hohe intrinsische Motivation zur Digitalisierung der öffentlichen Verwaltung beizutragen - Du verfügst über einen einschlägigen Studien- oder Ausbildungsabschluss mit hoher Qualifikation oder mehrjähriger Arbeitserfahrung. Grundsätzlich akzeptieren wir auch Bewerbungen von Quereinsteiger:innen, sofern diese eine hohe intrinsische Motivation und mehrjährige Arbeitserfahrung als Softwareentwickler:innen nachweisen können. Benefits - Ein kompetitives Gehalt zwischen 50.000€ und 70.000€ - Ein junges und dynamisches Team mit StartUp-Atmosphäre - 30 flexible Urlaubstage + frei an Weihnachten und Silvester - Vielfältige Projekte mit hohem Gestaltungspotenzial: Neue Ideen und kreative Lösungswege sind bei uns immer willkommen - Ein modernes Büro in Hamburg Sternschanze - Flexible Arbeitszeitgestaltung - Finanzielle Unterstützung für dein Deutschlandticket und Wellpass

• Own the end-to-end architecture of the Terrific platform across backend, frontend, data, AI, and real-time systems. • Drive engineering standards - code quality, testing, observability, security, and operational excellence - and raise the bar across the team. • Mentor engineers; grow the technical depth of the organization. • Design and implement new services and features end-to-end, from database to UI, with high performance and responsiveness. • Build rapid prototype features A to Z. • Tackle the highest-risk, highest-impact problems personally - live video reliability, real-time engagement, commerce integrations, and AI-powered experiences. • Evolve our stack thoughtfully: React, Angular, Node.js, TypeScript, GCP, Firebase, Firestore, Cloud Functions, BigQuery, and Pub/Sub. • Architect for global, 24/7 live operation — uptime, latency, cost, and graceful degradation during peak live events. • Build for B2B2C scale: systems that serve enterprise customers (brands, retailers, broadcasters) and their consumer audiences across multiple regions and languages. • Partner with Product and Data on experimentation infrastructure so every meaningful change can be A/B tested and measured. • Partner with Product and Design from concept through launch, taking full ownership in a fast-paced, collaborative environment. • Represent engineering with strategic customers and partners on deep technical topics; translate customer reality into architectural decisions. • Make the whole team better - through design reviews, technical writing, mentorship, and hiring.

Role Description We are looking for a software developer with the following qualifications: - 5+ years of professional software development experience. - Advanced English is required. - Successful completion of a four-year college degree is required. - Extensive experience with Kotlin and Java for backend development. - Strong background in object-oriented programming and software design principles. - Proven experience building scalable backend services and APIs. - Hands-on experience working with frontend frameworks such as React, Vue, or Angular. - Demonstrated experience using TypeScript (preferred) or JavaScript for frontend development. - Deep experience in designing and developing full-stack applications. - Practical experience integrating frontend and backend systems. - Solid understanding of RESTful APIs and microservices architecture. - Familiar with modern frontend development practices and responsive design. - Knowledgeable in performance optimization and scalable system design. - Ability to work through new and difficult issues and contribute to libraries as needed. - Ability to create and maintain continuous integration and delivery of applications. - Forensic attention to detail. - A positive mindset and a can-do attitude. - Experience working on Agile / Scrum teams. - Meaningful experience working on large, complex systems. - Ability to take extreme ownership over your work. - Ability to identify with the goals of FullStack's clients. - Ability to consistently work 40 hours per week. Qualifications - 5+ years of professional software development experience. - Advanced English is required. - Successful completion of a four-year college degree is required. - Extensive experience with Kotlin and Java for backend development. - Strong background in object-oriented programming and software design principles. - Proven experience building scalable backend services and APIs. - Hands-on experience working with frontend frameworks such as React, Vue, or Angular. - Demonstrated experience using TypeScript (preferred) or JavaScript for frontend development. - Deep experience in designing and developing full-stack applications. - Practical experience integrating frontend and backend systems. - Solid understanding of RESTful APIs and microservices architecture. - Familiar with modern frontend development practices and responsive design. - Knowledgeable in performance optimization and scalable system design. - Experience working on Agile / Scrum teams. - Meaningful experience working on large, complex systems. Requirements - Ability to work through new and difficult issues and contribute to libraries as needed. - Ability to create and maintain continuous integration and delivery of applications. - Forensic attention to detail. - A positive mindset and a can-do attitude. - Ability to take extreme ownership over your work. - Ability to identify with the goals of FullStack's clients. - Ability to consistently work 40 hours per week. Benefits - Competitive pay. - 100% remote work. - The ability to work with leading startups and Fortune 500 companies. - Continuing education opportunities. - Opportunity to grow and expand your career.

Role Description We are hiring BASE24-eps developers with hands-on experience in building interfaces. The ideal candidate has experience in developing and implementing Base24-eps interfaces including Mastercard interface, scheme updates, BIN changes, authorization enhancements, EMV updates, and compliance-driven system modifications. - Develop, enhance, and maintain BASE24-eps applications for new interface development including Mastercard interface. - Development involves building new interfaces for authorization, switching, routing, and settlement. - Implement Visa, Mastercard, Amex, or other card scheme mandates, and ensure compliance across system components. - Integrate, test, and support payment interfaces (ISO8583, host interfaces, third-party processors, gateways, fraud systems). - Examine scheme bulletins and translate requirements into technical changes within BASE24-eps modules. - Troubleshoot authorization issues, transaction declines, routing faults, and system-level processing errors. - Support end-to-end testing: certification testing, mandate validation, regression cycles, and cutover activities. - Coordinate with cross-functional teams: QA, infrastructure, production support, and client stakeholders. - Prepare technical documentation, release notes, and deployment procedures as needed. Qualifications - 6+ years of hands-on experience with BASE24-eps (AFT, OLF, ONL, TLF modules, device handlers, and related components). - Strong experience implementing card scheme mandates (Visa, Mastercard, Amex, JCB, Discover, etc.). - Solid understanding of payment message formats, including: - ISO 8583 - Proprietary scheme formats - Host Interface specifications - APIs - Proficiency in C++, Mainframe, Linux, MQ or XPNET. - Experience in real-time transaction systems and high-throughput payment platforms. - Knowledge of authorization flows, EMV processing, issuer/acquirer concepts, interchange processing, and settlement. - Strong analytics and debugging skill with ability to trace complex transaction paths. - Ability to work independently in distributed and remote teams. - Excellent communication skill for interacting with scheme partners and client stakeholders. Preferred Qualifications - Experience with mandate certification, scheme migrations, or large-scale mandate rollouts. - Knowledge of POS, ATM, eCommerce, or tokenization transaction flows. Benefits - Comprehensive wellness benefits including health checks, telemedicine, insurance with top-ups, elder care, partner coverage or new parent support via flexible work. - Opportunity to work on cutting-edge projects in tech and engineering with industry leaders. - Ability to create solutions to overcome societal and environmental challenges.