Jobs für full stack developer ruby on rails bei Berlin

We’re looking for a backend engineer who thrives in fast-moving environments and enjoys building robust systems end-to-end. You’ll work across data pipelines, APIs and infrastructure, ensuring our platform runs efficiently and scales cleanly as we grow.Your roleDevelop and maintain backend features and APIs for our core platformImprove database...

About Us Karla is transforming the post-purchase experience in e-commerce. Our platform helps online merchants turn delivery tracking into a revenue-generating channel while dramatically reducing customer anxiety and support costs. Founded in Berlin and backed by €3.4M in pre-seed funding, we're scaling rapidly across Europe. We integrate with 1000+...

Company Description Remote in our day-to-day work. On-site when it matters. We work remote by default – focused, efficient, and with full ownership. For larger features, architectural decisions, and real brainstorming sessions, we come together in Berlin – fast, hands-on, and without unnecessary meeting overhead.We use AI to accelerate – not to...

Your missionAt bliq.ai, we are building a real driverless vehicle from scratch: on public roads, with real safety requirements.We’re looking for an engineer who wants to help define and ship the next generation of autonomous driving. Because we own the full stack, from sensors to AI to vehicle actuation, you’ll have the freedom to explore and combine...

This isn’t your regular job. Almedia is a place where those who want to push harder can accelerate their careers faster than anywhere else. We’re aiming to become Germany’s second bootstrapped unicorn. Almedia is already Europe’s #3 fastest-growing company in 2025 (FT1000).We are building the future of marketing by rewarding our community of over 70...

About AndercoreAndercore is the AI-native supplier of industrial materials for energy, infrastructure, and construction in wholesale and beyond.We trade with global suppliers and distribute to European customers on our own account. Our AI runs the full trade and distribution end-to-end: sourcing, quality, pricing, sales, logistics, and embedded financing....

DescriptionHelp us build the insurance experience of the future. As our Head of Data & Analytics (all genders), you will lead getolo's Data & Analytics function and maximize business impact by turning data into better decisions, measurable growth and strategic competitive advantage. Reporting to the CEO, you will own getolo's Data & Analytics strategy,...

We're building what engineering looks like after AI. Not by adding AI tools to traditional workflows, but by rebuilding the way software is designed, built, and shipped from first principles. Senvo is an AI-native logistics infrastructure company helping some of Europe's largest shippers recover millions in carrier overcharges, automate logistics operations,...

Your missionnebenan.de connects real neighbours under their real names. That only works if people feel safe here. Your mission is to keep our users safe: with technical safeguards built into our platform and API, with product features that help neighbours protect themselves, and in close partnership with our Community Management team.You look at everything...

Your RoleAs an Engineering Lead (f/m/d) at LIQID, you will lead a team of software engineers building our next-generation digital wealth management platform — managing over €3 billion in assets.Your team turns ideas into reliable, scalable and elegant solutions, from client-facing applications to the sophisticated systems that power our investment...

About the roleAls Tech & Data Lead baust und leitest du eines der strategisch wichtigsten Teams bei LANCH. Du verantwortest unsere gesamte technische Infrastruktur, unsere internen Plattformen (Partner Portal & LANCH Operating System (OS)), unsere Datenarchitektur sowie die Weiterentwicklung unserer AI-getriebenen Tools. Du sorgst dafür, dass wir schnell...

What we doJoin a team of passionate and hardworking entrepreneurs to transform healthcare!Working in the tech team at Doctolib involves building innovative products and features to improve the daily lives of care teams and patients. We work in feature teams in an agile environment, while collaborating with product, design, and business teams.What you'll doWe...

About AndercoreAndercore is the AI-native supplier of industrial materials for energy, infrastructure, and construction in wholesale and beyond.We trade with global suppliers and distribute to European customers on our own account. Our AI runs the full trade and distribution end-to-end: sourcing, quality, pricing, sales, logistics, and embedded financing....

Revent is an early stage venture capital firm backing founders building companies that truly matter. We believe that the best builders of our generation don’t just want to build a unicorn, they want to create and leave a legacy for humanity. As a firm, we work relentlessly hard to earn the right to partner with these outlier individuals - obsessives on a...

Amazon Aurora is a MySQL and PostgreSQL compatible relational database service that combines the speed and availability of high-end commercial databases with the simplicity and cost-effectiveness of open source databases. Both the Postgres and MySQL versions of Aurora are built on some of the most active code bases in the open source community. We have...

Company DescriptionRemote in our day-to-day work. On-site when it matters. We work remote by default – focused, efficient, and with full ownership. For larger features, architectural decisions, and real brainstorming sessions, we come together in Berlin – fast, hands-on, and without unnecessary meeting overhead.We use AI to accelerate – not to replace...

About the RoleWe are looking for a Russian-speaking senior, well-rounded Full-Stack Engineer who is equally comfortable building polished React/TypeScript interfaces and substantial backend systems with Node.js/TypeScript. This is a long-term opportunity to join an established engineering environment and take meaningful ownership of production systems,...

Hi there!Are you eager to learn new things and implement your own ideas while working with an international and passionate team of professionals?At Data4Life, we empower researchers and public-health partners by building secure, compliant, and high-impact digital solutions. As we expand our Health Evidence solutions and researcher-focused developer...

Wir sind ein junges Start-up im Pflegemarkt, das die Organisation der häuslichen Pflege revolutionieren möchte. Als bootstrapped Unternehmen haben wir mit PflegeHelfer24 bereits eine erfolgreiche digitale Lösung entwickelt, um den häuslichen Pflegemarkt online zu bringen. Aktuell bauen wir mit Aldor unser zweites Produkt auf – ein B2B-SaaS-CRM und...

About the roleAls Head of Tech & Data baust und leitest du eines der strategisch wichtigsten Teams bei LANCH. Du verantwortest unsere gesamte technische Infrastruktur, unsere internen Plattformen (Partner Portal & LANCH Operating System (OS)), unsere Datenarchitektur sowie die Weiterentwicklung unserer AI-getriebenen Tools. Du sorgst dafür, dass wir schnell...