backend engineer

About the Role Join the core infrastructure team of a fast-growing energy technology company building the operating system for the next generation of European energy. The platform combines a modular billing engine, low-level energy-market communication protocols, and a full accounting ledger — delivered as a headless, API-first layer that enables hardware...

About the Role We're a seed-stage B2B SaaS company building an AI support agent platform that helps technical B2B teams automatically resolve complex customer support tickets. Our product integrates deeply with tools like Zendesk, Jira, Slack, and Sentry, and is built on a modern stack including Python, FastAPI, Next.js, TypeScript, PostgreSQL, Firestore,...

Project A is a leading European early-stage investor with €1.2b AUM, championing ambitious tech founders from idea to scale. We provide pre-seed and seed capital to firms shaping Europe's future across key themes including Fintech, European Resilience, Global Supply Chains, and the Future of Autonomous Work. Our portfolio features category leaders such as...

About the Role We're looking for a Senior Backend Engineer to own and scale the infrastructure behind one of the most widely adopted open-source LLM engineering platforms in the world — processing terabytes of AI tracing data per day for thousands of AI teams, including a significant portion of the Fortune 50. We're a small, engineering-heavy team building...

SumUp builds simple, affordable financial tools that help over 4 million small businesses across 37 markets get paid, manage their money, and grow. Beyond card payments, we offer a full suite of financial products - business banking, lending, invoicing, and money transfers - giving merchants everything they need in one place. Our Transfers Excellence squad...

About the opportunity We are seeking a talented engineer to join our Customers Identity segment, responsible for developing customer identity verification products that are frictionless to users, flexible and secure, ensuring the authenticity of our customers as we grow whilst maintaining a high level of trust with regulators. Our cross-functional teams are...

About The Opportunity You will be part of the Intelligent, which cross-functional teams power the operations at N26 and in some cases enable other tech teams through a robust platform approach. We are seeking a talented Lead Engineer to join our expanding teams and evolve our product, powered by a microservice architecture predominantly written in Java and...

At SumUp, the Global Bank tribe builds the core infrastructure and services that give merchants a digital business account, helping small businesses manage their banking needs easily and reliably. The Transfers Gateway squad connects SumUp’s internal systems to external financial networks across the EU and the UK. We build and run the services that move...

Turning Complexity Into Simplicity Circula is a Berlin-based software-as-a-service fintech that provides companies with a comprehensive expense platform for any payments made by employees. We are a team of 115 ambitious talents obsessed with the mission to simplify finance and payroll administration, while ensuring compliance through smart automations –...

Unternehmensbeschreibung Die Finanzen.net Gruppe ist ein innovatives FinTech-Unternehmen, das private und professionelle Anleger bei ihren Investitionsentscheidungen unterstützt. Zur Gruppe Gehören finanzen.net – eines der führenden Finanzinformationsportale in der DACH-Region finanzen.net ZERO – ein Neobroker für kostengünstigen...

Unternehmensbeschreibung Die Finanzen.net Gruppe ist ein innovatives FinTech-Unternehmen, das private und professionelle Anleger bei ihren Investitionsentscheidungen unterstützt. Zur Gruppe gehören: finanzen.net – eines der führenden Finanzinformationsportale in der DACH-Region finanzen.net ZERO – ein Neobroker für kostengünstigen...

Freenow empowers smarter mobility decisions helping people to move freely and cities to thrive. This is an exciting time to join us: Freenow is now part of Lyft, and we're growing our tech organization as we integrate with Lyft's global platform and systems. That means more scale, more engineering depth to learn from, and more opportunity to shape how our...

Freenow empowers smarter mobility decisions helping people to move freely and cities to thrive. This is an exciting time to join us: Freenow is now part of Lyft, and we're growing our tech organization as we integrate with Lyft's global platform and systems. That means more scale, more engineering depth to learn from, and more opportunity to shape how our...

At SumUp, the Global Bank team builds the core infrastructure and services that give merchants a digital bank account, helping small businesses manage their money easily and reliably. The Balance Management Squad sits at the core of the Global Bank Platform. Right now, our team is completing a major milestone: consolidating and modernizing our balance...

About the Job As a key growth accelerator, A11 partners with Europe’s most ambitious startups and scaleups, corporates and SMBs to connect them with top-tier talent ready to make an impact. We’re looking for an experienced Backend Engineer (m/f/d) to work on the backend infrastructure that handles payments, financial data, reconciliation, and...

About the Job As a key growth accelerator, A11 partners with Europe’s most ambitious startups and scaleups, corporates, and SMBs to connect them with top-tier talent ready to make an impact. We’re looking for an experienced Senior Backend Engineer (m/f/d) to be a technical anchor across the team at our Ecosystem Company. You will operate with a high...

🎤 Why voize? Because we’re more than just a job! At voize, we believe the greatest gift to frontline workers is time - time to care, connect, and be present. Today, that time is lost to admin work that pulls nurses away from what matters most: people. 💡 Your Mission As a Freelance Senior Backend Engineer for our German Market squad, you’ll...

Company Description ABOUT YOU is one of Europe’s fastest growing e-commerce companies. Based in Hamburg and Berlin, we operate at the intersection of fashion and technology. Our mission is to rethink online shopping and make it personal and seamless. This takes more than good ideas. It takes people who take initiative and challenge the status quo. We...

About A1 There are over 5 billion users using basic applications today such email, notes, tasks that are not AI-native. Our mission is to build a proactive smart assistant for everyday users to bring intelligence to conversations, errands, organising and workflows, with minimal prompting. Our product focuses on achieving high reliability for long-running...

Ulm, Germany | Hybrid / On-Site ‍ ‍About The Role As a Backend Engineer at ACC Group AG, you will be responsible for building and maintaining the core systems that power our AI-driven financial ecosystem. Your work will form the backbone of our business applications, internal data pipelines, client-facing products, and security infrastructure. This...