backend development

Backend Engineer (Ruby on Rails) for Sustainable E-commerce Marketplace We are looking for an experienced Backend Engineer to join the development of a mature European e-commerce marketplace focused on sustainable fashion, lifestyle products, and responsible retail.The platform connects consumers with eco-conscious brands and merchants across multiple...

EquiMatch is an AI-powered M&A origination platform connecting private equity firms, search funds, corporate development teams, and M&A advisors with acquisition targets. Behind the product is a data-heavy platform: web crawlers, LLM-driven company analyzers, scoring pipelines, a unified mailbox service, and CRM integrations — orchestrated across dozens of...

Job DescriptionWith several hundred thousand servers in operation, Hetzner is one of the largest web hosting providers and data center operators in Europe. We provide our customers with high-tech products we develop in house, and with reliable infrastructure at fair prices. More than 500 Hetzner employees work every day to help shape the digital future and...

We are looking for a Backend & Integration Java Developer to maintain and evolve a core enterprise application. You will work in a diverse environment, managing integrations with other systems and contributing to the modernization of the platform. Main Responsibilities Maintain, debug, and improve existing backend services built mainly with Java (1.7/1.8),...

What You'll Be Working OnWithin the backend team, you're the go-to person for AI and work closely with Product.You further develop our AI agents and automation solutions such as Connect AI, from the agent loop and tool calling to context management.You help shape our AI architecture and make sure we can work flexibly with different LLMs.When it comes to...

Make it happenYOU... take technical ownership for the reliable operation, monitoring and continuous improvement of AI-powered applications in production investigate incidents, perform root cause analyses and resolve issues across Python backends, React frontends, APIs, databases and AI integrations implement bug fixes, hotfixes and technical improvements...

Westhouse ist eines der führenden Recruitment-Unternehmen für die Vermittlung hochqualifizierter Fachexperten aus dem gesamten IT-Lifecycle- und Engineering-Bereich.Für unseren Kunden suchen wir aktuell eine/nDevOps Backend Entwickler:in (m/w/d) - 60RahmeninformationenReferenz: 179955Start: 2026-09-21Dauer: 21.09.2026 - 31.12.2029Standort:...

Mainz, Germany Edmund Optics® is a leading manufacturer and supplier of optics, imaging, and photonics technology. Edmund Optics` state-of-the-art manufacturing capabilities combined with its global distribution network has earned it the position as being one of the largest supplier of off-the-shelf optical components and a trusted partner when it comes to...

The role is about:We are looking for a Senior Python Backend Developer (Services) to join our engineering team and contribute to the evolution of our service layer architecture.This role is focused on designing and building reliable, scalable microservices while also working with and gradually transforming legacy systems. You will play a key role in...

Mainz, Germany Edmund Optics® is a leading manufacturer and supplier of optics, imaging, and photonics technology. Edmund Optics` state-of-the-art manufacturing capabilities combined with its global distribution network has earned it the position as being one of the largest supplier of off-the-shelf optical components and a trusted partner when it comes to...

tonies is the world’s leading interactive audio platform for children, with over 12 million Tonieboxes and 165 million Tonies sold globally. Our intuitive, screen-free system empowers children to learn and play independently in a safe and engaging way. With a presence in over 100 countries and a diverse portfolio of ~1,500 Tonies across multiple languages,...

Good to know...At Pets Deli, we’re looking for a Senior Backend Engineer who enjoys building reliable systems and taking ownership of their work - from clarifying requirements and making architectural decisions to writing, testing and releasing code.Remote within Germany: you can work from anywhere in Germany, though being based in Berlin is ideal....

Introduction Inverto is one of the leading procurement and supply chain management consultancies in the world. Backed by the power of BCG, we’ve grown from a successful European consultancy into a global company with a distinct offering. Our Business Services Teams play a critical role in enabling our business, driving continuous improvement, and shaping...

Mainz, Germany Edmund Optics® is a leading manufacturer and supplier of optics, imaging, and photonics technology. Edmund Optics` state-of-the-art manufacturing capabilities combined with its global distribution network has earned it the position as being one of the largest supplier of off-the-shelf optical components and a trusted partner when it comes to...

About the team The AI/ML Engineering team builds and operates ClickHouse's AI and machine learning products end-to-end. This includes the Agentic Data Stack, AI Functions, chDB, the in-Console copilot, and the AI/ML partnerships that distribute them — together with the shared components and expertise that let every other ClickHouse team ship AI in the...

Viewlicity, the company behind PuttView, is an innovativeSportsTech company based in Hamburg, Germany, with a strong focus on AugmentedReality (AR) and Mixed Reality (MR). PuttView Indoor has already revolutionizedGolf Putting Practice – evidenced by that fact that today, the best players andcoaches rely on our technology, Bryson DeChambeau, Justin Rose...

The essentialsTeam: Product & EngineeringStart date: As soon as possibleLocation: Berlin — hybrid, 3 days in the officeWorking language: English (German: a plus)Salary band: Shared before your first interviewYour impactAs (Senior) Backend Engineer at Gymondo, you build and improve the scalable backend systems that power our platform for hundreds of...

Mainz, Germany Edmund Optics® is a leading manufacturer and supplier of optics, imaging, and photonics technology. Edmund Optics` state-of-the-art manufacturing capabilities combined with its global distribution network has earned it the position as being one of the largest supplier of off-the-shelf optical components and a trusted partner when it comes to...

Backend & Integration Java Developer m/w/d M/F 2 years 01.09.2026 We are looking for a Backend & Integration Java Developer to maintain and evolve a core enterprise application. You will work in a diverse environment, managing integrations with other systems and contributing to the modernization of the platform. Main Responsibilities Maintain, debug, and...

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...