backend engineer nodejs Jobs in Wien

At Enery, we're powering the future…literally. We are an independent renewable energy provider dedicated to delivering reliable, affordable, and long-term green energy to our customers. We have scaled rapidly to over 1.1 GW of operating capacity, with a development pipeline of close to 10 GW across around 10 CEE countries — alongside a leading position...

Wir bei SAA AI Hub bauen KI-gestützte Softwareprodukte für die industrielle Vorfertigung. Als eigenständiges AI Venture innerhalb der SAA-Gruppe verbinden wir Startup-Geschwindigkeit mit mehr als 30 Jahren Industrieerfahrung.Unser Ziel ist nicht, KI-Demos zu bauen, sondern produktive AI-Systeme, die mit realen Unternehmens- und Produktionsdaten arbeiten....

5G Systems in Vienna seeks a Backend Developer to design and implement high performing Java-based services within a complex landscape. You will work on Spring Boot/Vert.X, contribute to new tech while maintaining legacy systems, and help production deployments across a cloud-first setup. The ideal candidate has a Bachelor/Master's degree with 2+ years in...

Darwin Recruitment is seeking a Freelance Senior TypeScript Backend Engineer for a 3-month contract, likely to extend, remote across Europe. Join a product development team working on an experimental initiative, focusing on backend services and AI-powered capabilities built on LLMs and agentic workflows. You will independently design, build, and iterate...

Springtime Technologies is hiring senior Automation engineers to build the services behind Invoicetrack's automation and data capabilities. You will design, build, and operate backend Python services, APIs and data models, while guiding architectural decisions and AI integration. Expect ownership, leadership potential, and collaboration with product...

Bitpanda GmbH is hiring an Intern Java Engineer in our Payments team in Vienna. You will support the delivery of the payments roadmap, writing Java code for backend and microservices, and gaining hands-on experience in a fast-paced environment. This 6-month, full-time role starts February 1, 2027. You will work with a highly skilled team and receive...

IXOPAY GmbH is seeking a Software Engineer (PHP) to join the Engineering team in Vienna. You will design, develop, and maintain backend features, focusing on performance, scalability, and secure payment workflows for a global platform. You'll collaborate with experienced engineers, work with modern APIs, and contribute to an enterprise-grade payment...

Michael Page International Austria GmbH sucht einen Senior Fullstack Java Developer (all genders) in Wien. Sie arbeiten an modernen Java-Webanwendungen im Backend und Frontend und gestalten den gesamten Software-Lifecycle mit. Sie bringen mehrjährige Erfahrung in Java-Webanwendungen, JavaScript/TypeScript, REST/SOAP, Maven oder Gradle und Git mit. Arbeiten...

Enery is seeking a Senior Backend Engineer to own the backend and integration layer of our internal platform, connecting a renewable fleet, data warehouse, and daily tools. This hands-on role sets the architecture, writes code, and mentors the team. You will design scalable APIs, work with Snowflake data paths, and collaborate with Data and DevOps on...

ÜBER HOKIFY At hokify, we're building the technology that connects millions of job seekers with employers and helps companies fill open positions faster. We're looking for a Backend Engineer who enjoys building reliable backend systems and improving the platform they run on. You'll help shape the services, infrastructure, and engineering practices that...

One bank. Many career paths. makeITmatter Backend Engineer for George (all humans) Location: Vienna, Wien, Austria Working-Hours: fulltime_permanent Division: George Company: Erste Digital Apply now Make a difference in the financial life of millions of people: At Erste Digital you are co-creating the digital future, in which better financial health is...

About the Role As a Senior Software Engineer (Backend), the role holder designs, develops, deploys, and maintains software features within backend domains. Reporting to the Software Engineering Team Lead, the position sits within the Product & Technology Team and ensures systematic and efficient development through all stages of the Software Development...

One bank. Many career paths. #makeITmatter Backend Engineer for George (all humans) Location: Vienna, Wien, Austria Working-Hours: fulltime_permanent Division: George Company: Erste Digital Apply now Make a difference in the financial life of millions of people: At Erste Digital you are co-creating the digital future, in which better financial health is...

Entain is seeking a Senior Software Engineer (Backend) to design, develop, deploy, and maintain features across backend domains. Working within the Product & Technology Team, you’ll ensure efficient development across the SDLC while operating on a hybrid basis. You will handle on-call duties and RFC-driven changes to improve the system. The role emphasizes...

Mora Software GmbH in Wien sucht eine/n Java-Entwickler/in zur Weiterentwicklung des Mora Work Tracking. Sie arbeiten an robusten Workflows, Berechtigungen und Schnittstellen, implementieren Java-APIs, REST-APIs und den MCP-Server. Sie integrieren OpenID Connect, SAML, LDAP/AD, und verbessern den Betrieb mit Micrometer/OpenTelemetry. Außerdem liefern Sie...

TourRadar is hiring a Senior Software Engineer (Backend / Fullstack) in Vienna, Austria. You’ll join a team delivering our Marketplace with internationalization, integrating local payment systems, and driving architectural decisions. You will work in an agile environment, contribute across the product lifecycle, and help scale high-load services while...

Job Details * Job Title: Senior Backend Engineer (Golang) * Location: Preferably in Vienna but open to have someone remote in Austria or in Poland * Languages: English (Fluent) * Experience: Over 5 years of experience in backend development using Golang and other OOP languages, you will contribute to our SaaS platform, managing the full software lifecycle *...

In dieser Rolle gestaltest du als Microsoft Systems Engineer die serverseitige Workplace-Infrastruktur für ein großes Enterprise-Umfeld mit rund 30.000 Clients und 1.000 Servern. Dein Fokus liegt auf der Konzeption, Architektur und technischen Weiterentwicklung skalierbarer Microsoft-Serverlösungen – von Active Directory über Domains, Forests und...

Radancy is seeking a Senior AI Engineer to join our AI Product & Engineering Team. You will help design AI architectures, create data pipelines, and build models for classification and inference, collaborating with data scientists across a remote, global team. You should have 3+ years as an AI Engineer and 5+ years in software engineering, with Apache Kafka,...

Deine Rolle im Team * We are looking for a Platform & Systems Engineer to own how our systems are designed, deployed and run, and to take our technology from research-grade to production-grade. * Shape the architecture of our larger repositories: module boundaries, interfaces, testing strategy, and the decisions that keep a growing codebase maintainable as...