Stellenangebote für: - SENIOR BACKEND SOFTWARE ENGINEER BERLIN

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...

At Routine Labs, we are building Europe's first secure, auditable, and EU-compliant automation infrastructure for legacy systems. We're taking a practical approach to improving how engineers work with AI systems. Combining LLMs with familiar software engineering methods to make it easier for people to build, modify and maintain software automations. Our platform lowers the effort required to turn natural-language instructions into deterministic, testable code that can interface with and automate...

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...

Payments segment in N26 is responsible for building systems so as to become the primary bank for our customers by providing trustworthy and frictionless money movement experiences. Aufgaben As a Senior Backend Engineer at N26, you will be encouraged to embrace the latest technological updates and given a platform to work on complex, interesting problems on a daily basis. Job Description In this role, you will: Collaborate closely with your Tech Lead on architecting new features and seeing them t...

adesso steht für IT-Exzellenz und damit auch für exzellente Entwicklungsmöglichkeiten für alle adessi. Wir wachsen gemeinsam und lernen voneinander - an unseren Projekten, im Team und mit herausragenden Trainingsangeboten. Wir haben IT im Herzen, die Branche im Blick und den Erfolg unserer Kunden im Sinn. Denn erfolgreiches Geschäft entsteht durch innovative Ideen, zukunftsfähige Strategien und kluge IT-Lösungen. Immer sind dabei Menschen beteiligt, die etwas bewegen wollen und das einfach mache...

Aufgaben Together with our client, a Berlin‑based software company that develops automated solutions to simplify tax compliance for cross‑border e‑commerce, we are looking for a forward thinking AI Software Engineer (m/f/d) in Berlin with solid experience in AI-driven engineering (especially Claude Code ). By combining cloud technology, data integration and expert knowledge, our client enables online retailers to manage registrations, filings and ongoing tax obligations across multiple European ...

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...

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 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...

1KOMMA5° We are looking for you to join our tech team in Berlin, Munich, or Hamburg. 1KOMMA5° is creating Germany's largest one-stop-shop for the sale, installation, and servicing of solar panels, heat pumps, electricity solutions, and charging infrastructure. And the best part? They are all interconnected! Become a part of our mission and learn about our Product & Tech team! Deine Position As a mobile engineer at 1KOMMA5°, you will be one of the first members of a cross-functional team alongsid...

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 ...

Company Description Since its foundation in 2007, Solactive AG has evolved into one of the world's most important and fastest-growing index providers. From our headquarters in Frankfurt, we power global investment products across ETFs, structured products, and mandates. Our reputation is built on innovation, speed, flexibility, and strong partnerships. Job Overview The User Interfaces Team at Solactive defines, implements, and maintains our Design System, the foundation for consistent, high-qual...

*Make sure that you add your portfolio as a URL, otherwise your application will be rejected. Are you a senior developer who crafts elegant frontends with React & TypeScript, and thrives in an engineering culture of innovation and ownership?* At TextCortex AI, you'll join a core team of ambitious builders on a mission to transform how organizations harness AI. We've scaled from a few thousand users to millions in just two years, earning recognition as a Top 10 AI product of 2025 on G2 and servin...

Decentriq is the rising leader in data-clean-room technology. With Decentriq, advertisers, retailers, and publishers securely collaborate on 1st-party data for optimal audience targeting and campaign measurement. Headquartered in Zürich, Decentriq is trusted by renowned institutions in the DACH market and beyond, such as RTL Ad Alliance, Publicis Media, and PostFinance. Our analytics & ML pipelines are the heartbeat of this platform. Built in Python (pandas) and Apache Spark, they run either in ...

Are you tired of working on products you don't really care about? Do you want to work on something that has a positive impact on humanity and our planet? Do you like to get stuck in and are you passionate about coding? Then we have a great opportunity for you. At Global Changer, you will work on a solution with a clear goal: helping companies reduce emissions faster. We focus on one of the biggest levers to fight the climate crisis and work mainly with large organisations. We are backed by well-...

We dig Web3. WeAreShovels.com is a Web3 engineering studio building and securing production-grade Web3 protocols, infrastructure, and tooling. We help Web3 builders dig deep, uncover value, and ship Web3 products that last - fast. We're looking for a Senior Web3 Frontend Engineer (Lead) who enjoys building great interfaces, leading others, and helping customers succeed. Tasks What you'll do Lead frontend architecture for complex Web3 applications (dashboards, protocol UIs, admin panels) Build in...

We're building the next level B2B lead generation platform through state-of-the-art AI Systems and data intelligence. For this we've built a data pipeline keeping tens of millions of company records up-to-date. Based on company specifc signal combinations, we're helping companies discover their next big opertunities before their competitors do. Tasks Main Responsibilities Design and develop microservices for processing millions of web data points daily Optimize and maintain data pipelines that t...

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...