java backend engineer senior

Your mission Build the backbone of intelligent energy systems. You'll develop backend systems that turn complex optimization algorithms into reliable, real-time decisions for industrial energy systems. From the core APIs of our optimization platform to integrations with energy management systems, you make sure our platform runs fast, stable and reliable....

Hey, I'm Niklas, co-founder and lead of our Platform Engineering team at Kombo! I’m looking for an excellent backend engineer with high agency who gets excited about the hardest technical parts of scaling a product: performance bottlenecks, risky migrations, reliability, infrastructure, and the tooling that helps engineers operate all of it safely. This is...

Senior Product Engineer (Full Stack) — AI-Native B2B Trade Platform, Berlin (Hybrid) Via Xcede — confidential search The company A fast-growing, well-funded Berlin-based startup rebuilding B2B procurement from the ground up. This category is a €900B+ market in Europe alone, still run almost entirely by people — four or five intermediaries between...

About Maesn Want 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,...

Why Backend Engineering at Langfuse Your work will have an outsized impact. Langfuse ingests terabytes of AI tracing data per day. When a Fortune 50 company instruments their application with Langfuse, they hit the infrastructure you built. Everything you ship is open source and immediately visible. The core of your role is making Langfuse fast and...

Navan has transformed the corporate travel, payment, and expense landscape by consistently prioritizing user needs We are seeking a Senior Software Engineer (Backend) for our AI-first engineering team to drive the architecture of a next-generation corporate expense management platform In this role, you will scale backend systems powering global commerce,...

Enjoy solving complex backend challenges, working with distributed systems, and having a real say in technical decisions? Join our Email Security team as a Senior Backend Engineer and help build, improve, and evolve the backend services powering our cybersecurity products. You\'ll work in a technically demanding environment where performance, scalability,...

Senior Java Developer- Software EngineerSoftware DeveloperJob Description and Requirements: Senior, hands-on development who is passionate about technology and has experience developing high performance transaction or reporting systems with large databases and multi-tier architectures; is a team player and knows how to contribute as part of a distributed and...

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...

Our platform runs on .NET microservices. How those services are cut, how data flows between them, and how they reach production is decided by the people who build them — and we'd like you to be one of them.You'll work closely with our software architects, product owners, and fellow developers: code reviews, pair programming, and the technical decisions...

Du baust die Zahlungs- und Compliance-Infrastruktur, die tausende Betriebe täglich nutzen - von der TSE-Signatur bis zum Auszahlungs-Engine.Deine AufgabenSkalierbare Services für Zahlungen und Auszahlungen entwerfen und bauenCloud-TSE und KassenSichV-Compliance weiterentwickelnAPIs für Partner und interne Teams designenCode-Reviews und technische...

Für eine etablierte Organisation im Raum Nürnberg suchen wir aktuell einen erfahrenen Senior Backend Developer Java (m/w/d) für die Weiterentwicklung einer geschäftskritischen Anwendungslandschaft. In dieser Position entwickeln Sie bestehende Backend-Systeme nicht nur funktional weiter, sondern gestalten auch Softwarearchitekturen, Entwicklungsstandards...

The ZEOS B2B Platform is the high-performance engine that allows our partners to seamlessly integrate into the Zalando ecosystem. As a Senior Backend Engineer, you will be a key architect of the services that power our partner-facing products and internal operational tools. Our mission is to transform complex business requirements into a scalable, API-first...

TYTAN Technologies The PACE is fast. The expectations are high. The contribution matters. Working at TYTAN is more than a job, this is a mission. We thrive, think big, and hold ourselves to the highest standard. Our mission and values guide everything we do, and we're looking for people who thrive on ownership, embrace challenges, and are energized by...

At GALVANY, our goal is to make climate-neutral living a reality for everyone. We focus on execution – developing concrete, smart solutions and making heat pumps, battery storage, and smart metering easy to access, reliable, and affordable. GALVANY-Tech drives the energy transition through software. We're building an AI-based Operating System for sales,...

.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, Berlin Description .img – itai’s machine GmbH is...

THE ROLE AND THE TEAM The ZEOS B2B Platform is the high-performance engine that allows our partners to seamlessly integrate into the Zalando ecosystem. As a Senior Backend Engineer, you will be a key architect of the services that power our partner-facing products and internal operational tools. Our mission is to transform complex business requirements into...

Full-timeWho we areXempus is the leading European group pension, life and health insurance platform. We seamlessly connect insurers, insurance agents, corporates and their systems in an automated and customer-centric manner. Using standardized interfaces and structured data, we operate the central infrastructure for all customer-centric processes and enable...

Build the Market Leader in Satellite Analytics with us at LiveEOYou will work on applications that use deep learning and satellite data and other data sources to help companies and governments fight deforestation, monitor critical infrastructure, and respond faster and more precisely to natural disasters. Our aim is to empower any user in the world to...

Who we are Xempus is the leading European group pension, life and health insurance platform. We seamlessly connect insurers, insurance agents, corporates and their systems in an automated and customer-centric manner. Using standardized interfaces and structured data, we operate the central infrastructure for all customer-centric processes and enable agentic...