• You will design the financial systems that support the global energy transition at scale. • By building robust payment solutions and seamless checkout experiences, you will ensure that adopting sustainable energy is as smooth as it is memorable. • As a Software Engineer at 1KOMMA5°, you will take technical ownership of key systems and features, make architectural decisions, and ensure scalability, reliability, and performance. • You will work closely with other engineers, product managers, and stakeholders to shape our technical direction and deliver high-impact solutions. • In addition to writing great code, you will mentor teammates, promote engineering excellence, and help elevate our development and deployment practices.

• You will help transform the business of selling renewable technologies at scale. • With our core marketing automation and CRM platforms, we redefine growth processes to accelerate the global energy transition empowering private homes and small businesses to adopt sustainable energy solutions. • As a Senior Software Engineer at 1KOMMA5°, you will take technical ownership of key systems and features, driving architectural decisions and ensuring scalability, reliability, and performance. • You’ll collaborate closely with other engineers, product managers, and stakeholders to shape our technical direction and deliver high-impact solutions. • Beyond writing great code, you’ll mentor teammates, champion engineering excellence, and help evolve our development and deployment practices to the next level.

• Vorantreiben der Entwicklung unserer App für die virtuelle Montagelinie, um das Team dabei zu unterstützen, ehrgeizige Ziele zu erreichen und kontinuierliche Verbesserungen für die 1KOMMA5° Installation Manager App voranzutreiben • Treibende Kraft für Produktentwicklung und Innovation durch Testen Ihres Codes und Bereitstellen skalierbarer, zuverlässiger und leistungsfähiger Frontend-Lösungen, um technische Verbesserungen und Wartbarkeit unserer Apps sicherzustellen • Erstellen, Implementieren, Bereitstellen, Pflegen und Verbessern von qualitativ hochwertigen, Flutter-basierten mobilen Apps für iOS- und Android-Plattformen • Förderung von Teamarbeit und erfolgreicher Projektausführung bei gleichzeitiger ständiger Verfeinerung der Funktionen basierend auf Benutzerfeedback und Branchentrends zur Verbesserung der Kundenerfahrung • Unterstützung und Coaching von Kollegen in Bezug auf automatisierte Tests und Bereitstellungen, Designmethoden und Codestandards und ein echter Teamplayer sein, wenn es darum geht, Wissen und Erfahrungen, insbesondere über Teamgrenzen hinweg und über die eigene Rolle hinaus, zu teilen

• Contribute as a senior full-stack engineer within a team of self-driven software developers • Design, build, and maintain business-critical systems across the stack. From scalable backend services to performant, user-friendly frontends • Translate complex and loosely defined business problems into clear, actionable technical solutions • Champion clean architecture, component reusability, and maintainable UI patterns using modern frameworks (e.g. React, Next.js, or similar) • Drive experiment-driven innovation and uphold strong engineering practices in testing, CI/CD, observability, and code quality • Continuously improve developer experience by reducing technical debt, automating workflows, and documenting key decisions and operational processes • Operate effectively in an asynchronous, outcome-oriented environment, managing your work autonomously and maintaining clear communication through documentation and structured updates • Contribute to lightweight project management by defining milestones, ensuring technical feasibility, and aligning engineering work with product goals