senior backend engineer Jobs in Berlin

Build systems, not just services. Work across products, not inside one codebase. Own problems from first question to production.The roleWe run a portfolio of mobile products used by millions of people.Our engineering team works across that portfolio.You won't join a permanent team attached to one app. You might spend your first few weeks improving the...

About the team: The MarTech team builds the marketing and growth systems that help SumUp reach more merchants around the world. We combine backend engineering, data engineering, data science and external marketing platforms to create reliable, scalable solutions that improve conversion, increase operational efficiency and unlock new acquisition channels. Our...

（Senior) Backend Engineer – Golang, GymondoThe 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...

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...

The essentials Team: Product & Engineering Start date: As soon as possible Location: Berlin — hybrid, 3 days in the office Working language: English (German: a plus) Salary band: Shared before your first interview Your impact As (Senior) Backend Engineer at Gymondo, you build and improve the scalable backend systems that power our platform for hundreds of...

The essentials Team: Product & Engineering Start date: As soon as possible Location: Berlin — hybrid, 3 days in the office Working language: English (German: a plus) Salary band: Shared before your first interview Your impact As (Senior) Backend Engineer at Gymondo, you build and improve the scalable backend systems that power our platform for hundreds of...

About MaesnWant to join a growing European startup early and be part of an epic journey?At Maesn we build software for other software companies. We provide an integration platform that lets B2B software companies add integrations to their platforms in hours and days instead of weeks and months. Our customers love us because we are innovative, quick, friendly...

Senior Backend Engineer, Shopping AgentsSage AI Labs · Berlin · Full-time · [Remote]About usSage AI Labs is building the infrastructure that lets AI agents transact on the open web. It is one of the few genuinely unsolved problems left in commerce, and whoever solves it sets the defaults everyone else builds on top of.The company was founded by Sebastian...

About the team:You’ll join one of the teams within SumUp’s Identity Lifecycle Mission, working on some of the most critical building blocks behind the merchant journey, from onboarding and identity verification to KYC/KYB, regulatory data collection, and managing customer identity throughout the entire lifecycle.Today, many of these capabilities live...

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...

Deine MissionAls (Senior) Backend Engineer bist du ein zentraler technischer Contributor in unseren Backend-Teams. Du übernimmst Verantwortung für komplexe Komponenten, treibst technische Exzellenz voran und arbeitest eng mit Produkt-, Frontend- und Infrastruktur-Teams zusammen, um zuverlässige und skalierbare Lösungen zu liefern.Design, Entwicklung und...

StellenbeschreibungMitgestaltung, wie Millionen von Nutzer:innen Produkte sehen, durch die Kombination von ML-Modellergebnissen mit Business-Logik wie Kampagnen-Boosts oder Sponsored ProductsEntwicklung und Verantwortung für unsere performante Ranking Engine „Spotsetter“, um eine schnelle, deterministische und faire Sortierung von Produkten...

.img – itai’s machine GmbH is a digital technology company specializing in modern publishing solutions. With our “journalistic operating system” (.jOS), we offer a cloud-native publishing platform that serves millions of users by connecting to headless CMS systems, processing and enriching content, and distributing it via web and mobile applications....

Join GLS/NXT as a Senior Backend Engineer and help shape the future of out-of-home delivery. We’re building the OOH Platform - a scalable system that empowers carriers across multiple countries to deploy, manage, and optimize parcel locker networks with ease. At GLS/NXT, you’ll work at the intersection of startup energy and enterprise muscle - moving...

Our MissionJoin us in reshaping global trade in a fast-growing startup!We are traide AI – a VC-backed, B2B deep tech startup based in Berlin, using AI to solve one of the most overlooked yet critical challenges in international trade: customs compliance. Our software automates product classification, reduces regulatory errors, and helps customers save up...

Deine AufgabenYou will develop our AWS back-end architecture,You will implement efficient Lambdas using various frameworks,You will introduce modern testing strategies (unit, integration, E2E tests),You will optimize performance and scalability (PostgreSQL, DynamoDB caching),You will ensure and further develop professional development and documentation...

StellenbeschreibungMitgestaltung, wie Millionen von Nutzer:innen Produkte sehen, durch die Kombination von ML-Modellergebnissen mit Business-Logik wie Kampagnen-Boosts oder Sponsored ProductsEntwicklung und Verantwortung für unsere performante Ranking Engine „Spotsetter“, um eine schnelle, deterministische und faire Sortierung von Produkten...

About you: wealthAPI enables financial multipliers to monetize trust. We provide core financial solutions for large partners and (f)influencers, thereby actively driving the ongoing disruption of the wealth management market. We are looking for a Java engineer who is passionate about investing and finance. Optimally, you bring a good understanding of...

Hey, I'm Andrei. I’m hiring a Senior Backend Engineer to join the Data Core team at Modash.Modash helps brands find, understand, and work with creators across Instagram, TikTok, and YouTube. More than 2,700 companies (including Stanley 1913, Sennheiser, and NordVPN) use us to manage and scale their creator partnerships.Every one of those products depends...

StellenbeschreibungEntwicklung der Search Engine hinter ABOUT YOU mit Fokus auf Query Understanding, Entity Resolution und semantischer Vektorsuche in Node.js/TypeScriptKombination von OpenSearch-Relevanz, Embedding-Similarity und verhaltensbasierten Re-Ranking-Signalen zu einheitlichen und relevanten SuchergebnissenAufbau und Weiterentwicklung von...