Stellenangebote für: - SENIOR BACKEND SOFTWARE ENGINEER BERLIN

1KOMMA5° At 1KOMMA5°, we pursue a clear vision: Living on wind and sunlight forever for free. To make this a reality, we are building the energy system of the future with Heartbeat AI. Want to be part of it? We bring together regional craftsmanship and scalable software: We don't think of solar, batteries, heat pumps, and e-mobility as isolated components, but control them as an intelligent, integrated overall system in our virtual power plant. Directly connected to the electricity market - in r...

Join our VERBI Team as a Senior Backend Engineer (m/f/x)! We are VERBI Software GmbH - the company behind MAXQDA - the #1 software for qualitative and mixed methods data analysis. We provide researchers, universities, and companies with an innovative and intuitive tool so they can accomplish great things. Professional service and a close connection to our community has paid off: since our founding in 1989 we have grown steadily and sustainably as a family company. Tasks You develop our AWS backe...

Über uns Für unseren Kunden suchen wir im Rahmen der Direktvermittlung einen erfahrenen Senior Software Engineer (m/w/d) Backend, die leistungsstarken und skalierbaren Backend-Systeme entwickelt und kontinuierlich weiterentwickelt. In dieser Position übernehmen Sie Verantwortung für die Konzeption und Implementierung moderner Softwarearchitekturen, optimieren bestehende Services und sorgen für stabile sowie performante Anwendungen. Aufgaben Entwicklung, Weiterentwicklung und Optimierung moderner...

Über uns Für unseren Kunden suchen wir im Rahmen der Direktvermittlung einen erfahrenen Senior Software Engineer (m/w/d) Backend, die leistungsstarken und skalierbaren Backend-Systeme entwickelt und kontinuierlich weiterentwickelt. In dieser Position übernehmen Sie Verantwortung für die Konzeption und Implementierung moderner Softwarearchitekturen, optimieren bestehende Services und sorgen für stabile sowie performante Anwendungen. Aufgaben Entwicklung, Weiterentwicklung und Optimierung moderner...

These tasks are waiting for you You'll be a core contributor to the Admin Experience team. Design and develop secure, well-tested features across a TypeScript/Node.js backend and React frontend Contribute to our API-first infrastructure -- the engine behind how partners integrate insurance into their products Build AI-powered features using Claude and Gemini -- from intelligent claims automation to LLM-assisted OPS tooling we run in production today Design and implement agentic workflows -- mult...

Wir sind ein junges Health-Tech-Startup, das es Ärzt:innen ermöglicht, neue Distributed Healthcare Lösungen anzubieten, sodass Patient:innen in abgelegenen und unterversorgten Regionen Zugang zu Gesundheitsversorgung erhalten. Dies ist deine einzigartige Chance, Teil eines gut finanzierten Health-Tech-Unternehmens in der Frühphase zu werden - mit direktem Einfluss auf die Gesundheit unserer Patient:innen und unser Tech-Produkt von Grund auf mitzugestalten. Wir sind bereits im Einsatz und versorg...

Über uns Wir als Match on Monday unterstützen einen international aufgestellten Anbieter einer geschäftskritischen, multi-tenant White-Label B2B2C SaaS-Plattform, die Enterprise-Partner und Endkund:innen über skalierbare Integrationen miteinander verbindet. Das Unternehmen ist inhabergeführt, produktgetrieben und in einem dynamischen Umfeld gewachsen - mit einem kollaborativen Engineering-Team und hoher Eigenverantwortung. Aufgaben Backend Engineering & Architektur Konzeption und Umsetzung von L...

Yoffix is a hybrid workplace management platform helping companies manage offices, desks, meeting rooms, parking, visitors, and team collaboration. Our platform integrates with Microsoft 365, Google Workspace, Slack, HR systems, calendars, and workplace infrastructure. We work with companies across Europe and build a real production SaaS product used daily by enterprise customers and distributed teams. As the platform grows, we are looking to strengthen engineering ownership across the product a...

acemate is building an AI learning & teaching platform for higher and further education institutions. We have strong traction, secured funding and are entering an exciting growth phase. We're looking for a passionate Senior Backend Engineer / Developer to drive our product forward and help us scale. About acemate Founded in 2024, acemate has quickly become the leading AI learning platform for higher and further education, trusted by top-tier institutions across four countries, including Universi...

You are interested in the position as Backend Engineer (all genders) at koppla GmbH? On the job platform Instaffo, you can apply for this and other jobs with ease. Create your profile in under 3 minutes and start the application process with just a few clicks. Please note that this position requires EU work authorization. The language requirements for this position are: English - Fluent. koppla is building the next-gen collaborative scheduling platform for construction, helping project managers ...

Wir sind adesso business consulting, das SAP-Powerhouse der adesso Group. Als führender IT-Dienstleister stehen wir für Kundenorientierung, Wachstum und starke Perspektiven. Unser größter Erfolgsfaktor? Das sind unsere Mitarbeitenden! Als SAP-Profis begleiten wir kundenspezifische Herausforderungen und unterstützen die Auswahl, Anpassung und Implementierung von SAP-Lösungen. Unsere langjährige Erfahrung kombiniert technisches und Branchen-Know-how mit strategischem Denken und kreativen Ideen. Da...

Coding Partners is a dynamic software development agency specializing in empowering softare companies to build and ship products faster. We deliver custom, scalable software solutions and provide expert interim full-stack developer staffing, enabling our clients to achieve rapid and sustainable growth. Our focus is on agile development, quality, and building lasting partnerships within the European tech ecosystem. We are looking for a senior fullstack developer who can build, deploy, and maintai...

Your Impact As a Senior Backend Engineer (m/f/d) at 7Mind, you'll be part of a cross-functional team building technology that supports mental wellbeing at scale. You work end-to-end on features, take ownership of backend services and help shape a system that is reliable, maintainable and a pleasure to work with. In 2025, we fully rewrote and relaunched the 7Mind app and backend. Our new platform follows Domain-Driven Design principles and deliberately focuses on "delightfully boring" solutions: ...

We are a young health-tech Startup, enabling doctors to provide new distributed healthcare solutions, by treating patients in remote and underserved areas. This is your unique opportunity to join a well-funded early-stage health-tech company - having a direct impact on our patient's health - and shaping our Tech-product from scratch. We are already operational and serving hundreds of patients every month. Aufgaben Take ownership of building and delivering features to our customers. We strongly b...

Wir sind adesso business consulting, das SAP-Powerhouse der adesso Group. Als führender IT-Dienstleister stehen wir für Kundenorientierung, Wachstum und starke Perspektiven. Unser größter Erfolgsfaktor? Das sind unsere Mitarbeitenden! Als SAP-Profis begleiten wir kundenspezifische Herausforderungen und unterstützen die Auswahl, Anpassung und Implementierung von SAP-Lösungen. Unsere langjährige Erfahrung kombiniert technisches und Branchen-Know-how mit strategischem Denken und kreativen Ideen. Da...

Über uns: Die DIN Solutions GmbH steht innerhalb der DIN-Gruppe für eine hohe technische Expertise und ist verantwortlich für die Entwicklung und den Betrieb von Software, Plattformen und Datenbanken. Unsere Aufgabe ist es, (Kunden-)Anforderungen in technische Lösungen zu übersetzen. Darüber hinaus entwickeln wir Lösungen für Normenanwender und Kooperationspartner der DIN-Gruppe. Wir suchen ab sofort in Berlin - unbefristet - Lead Expert (m/w/d) C# / .NET Aufgaben DIN Solutions GmbH sucht ab sof...

Über uns Senior Backend Engineer (m/f/d) Location: Berlin, remote is possible Salary: 75.000 - 95.000 Euro, depends on your experience Backend: Java, Spring, Hibernate, PostgreSQL, Spring Boot Frontend: ReactJS, TypeScript, Redux, SASS QA: Selenium, Galen, Serenity, JUnit, Mockito, Jest, Mocha Build and Deploy: Jenkins, git, npm, Maven, Docker Infrastructure: AWS, Troposphere (python), Stacker, Cloudformation, Terraform (Infrastructure), Ansible, EKS (k8s) Agile: Kanban and Scrum Aufgaben Design...

Über uns Senior Backend Engineer (m/f/d) Location: Berlin, remote is possible Salary: 75.000 - 95.000 Euro, depends on your experience Backend: Java, Spring, Hibernate, PostgreSQL, Spring Boot Frontend: ReactJS, TypeScript, Redux, SASS QA: Selenium, Galen, Serenity, JUnit, Mockito, Jest, Mocha Build and Deploy: Jenkins, git, npm, Maven, Docker Infrastructure: AWS, Troposphere (python), Stacker, Cloudformation, Terraform (Infrastructure), Ansible, EKS (k8s) Agile: Kanban and Scrum Aufgaben Design...

You are interested in the position as Product Engineer (all genders) at koppla GmbH? On the job platform Instaffo, you can apply for this and other jobs with ease. Create your profile in under 3 minutes and start the application process with just a few clicks. Please note that this position requires work authorization for Germany. The language requirements for this position are: English - Fluent. koppla is building the next-gen collaborative scheduling platform for construction, helping project ...

We are looking for a (Senior) Backend Engineer (C#/.Net) (m/f/d) Join our team at our location in Berlin – hybrid working conditions available. Our solutions contribute to flexible and customer-friendly payment alternatives. We offer consumers the opportunity to choose when and how they want to pay, whilst guaranteeing a steady and predictable cashflow for merchants. Our products make us proud, but not content and we have high ambitions for our existing as well as upcoming products. We have a st...