Backend Engineer

• Design, build, and maintain core APIs and backend services
• Own the operations and the monitoring of production systems
• Integrate third-party systems and APIs into our platform
• Own design and implementation of new features and services
• Identify best practices and create/suggest standards to be used by the whole engineering department
• Document and demonstrate solutions by developing documentation, flowcharts, layouts, diagrams, charts, code comments, and clear code
• Contribute to sustaining engineering culture by mentoring more junior colleagues and onboarding new joiners
• Collaborate closely with other engineers, product managers, and business stakeholders to deliver high-quality solutions
• Proactively offer insights and present achievements and results in relevant meetings
• Occasionally propagate backend changes to frontend

Senior Backend Engineer – f/m/x

• Development and implementation of scalable Python applications, backend services and AI-based solutions
• Design, development and optimization of complete Retrieval-Augmented Generation pipelines
• Implementation of document ingestion and data-processing workflows
• Generation, management and optimization of embeddings
• Implementation of semantic search, vector search and hybrid search solutions
• Integration and management of vector databases and retrieval systems
• Development and integration of APIs and backend interfaces
• Support of AI use cases from technical conception through implementation to productive operation
• Collaboration with AI architects, data scientists, developers, business departments and other technical stakeholders

Python Developer – Generative AI, RAG

• You develop and modernize large Java / Jakarta EE systems with a focus on clean code, performance and future-proof architectures — from the first line of code to stable deployment.
• As Lead Developer you are a technical role model and sparring partner.
• You coach your team, nurture talent and establish agile best practices within the project.
• You use Fridays to explore new frameworks, cloud technologies or tools together with the team and to share knowledge across locations.

Lead Java Developer

• Further development, design and enhancement of our in-house developed web-based ERP system
• Development of new digital services and applications for our customers
• Development, maintenance and extension of our Android apps in Kotlin (e.g., our warehousing / mobile data-entry (MDE) app)
• Automation of existing processes using microservices, machine learning and cloud services
• Contribute your own concepts for software and process design (conceptual work rather than merely implementing specifications)
• Work in short development cycles using agile methods — "test in production" instead of long evaluation phases
• Troubleshooting and continuous improvement

Full-Stack Developer, .NET, Kotlin

• Build backend services, APIs and workflows for the AI Neobank app.
• Support products across insurance, payments, wallet, savings, investing, travel and financial services.
• Design reliable systems for user accounts, transactions, partner integrations, reconciliation, notifications and operations.
• Work with product and mobile teams to ship customer-facing journeys quickly.
• Integrate with banks, payment gateways, insurers, data providers and other partners.
• Improve system reliability, observability, security and performance.
• Build systems that are practical, auditable and ready for regulated financial products.

Backend Software Engineer – AI Neobank App

• Build backend services and APIs for onboarding, accounts, payments, cards, transfers, rewards, travel, FX, KYC and risk flows.
• Design reliable systems that can support real customer transactions, operational workflows and future financial products.
• Integrate with internal systems, financial partners, payment providers, AI services and third-party platforms.
• Own backend quality across reliability, security, latency, observability, data integrity and incident handling.
• Work with product, frontend, mobile and AI teams to launch features quickly and safely.
• Improve existing systems by simplifying flows, removing manual work and automating repeatable processes.

Backend Developer

• Herausforderung, Abwechslung und modernste Technologien
• komplexe Systeme rocken und für innovative Lösungen sorgen
• im Requirements Engineering mitmischen und End-to-End Verantwortung übernehmen

Senior Fullstack Java Developer – Spring/React/Angular

• entwickelst als wesentlicher Teil unseres Development Teams kundenfokusiert moderne Applikationen
• Möglichkeit an Verbesserungen von Testing & Deployment sowie Automatisierung zu arbeiten
• bist Know-How Träger in unserer Firma zur Entwicklungsfragen in deinem Bereich
• unterstützt neben der Umsetzung der Kunden auch interne Projekte bei der Entwicklung
• bringst deine eigenen Ideen ein - bei uns wirst du gehört und geschätzt!
• unterstützt mit deinem Know-How auch Kollegen in anderen Projekten

Senior Fullstack Developer – Java, Angular

• You will further develop the core systems behind our product and actively shape our backend architecture.
• Design, develop, and optimize scalable backend services and REST APIs using Kotlin, Spring, and Gradle.
• Model and continuously optimize the performance of our relational database systems (SQL).
• Work closely with the frontend and AI teams to ensure clean integration of interfaces and reliable implementation of business logic.
• Security as an integral part of the architecture (Secure by Design).
• Contribute to shaping our cloud infrastructure and CI/CD pipelines.
• Actively participate in the agile development process and promote a culture of continuous learning.

Backend Developer – Kotlin, Spring

• You implement exciting intralogistics projects for our renowned international clients as part of a highly qualified team.
• You contribute to the conception and design of state-of-the-art logistics software solutions.
• You assist in creating logistics process analyses and conducting customer workshops.
• You adapt our standard software to the individual needs of our customers.
• You independently develop manual and automated software solutions.
• Your responsibilities also include software testing (including bug fixing) as well as deployment and on-site software implementation at customer sites.

Java Developer

• Challenges, variety and state-of-the-art technologies!
• Software projects for our internationally operating major clients
• Key role: Senior Full-Stack Developer (Spring & React/Angular)
• Take ownership of requirements — variety is guaranteed!
• Work with the latest tools and technologies — in a team that supports and inspires each other.

Senior Fullstack Java Developer – Spring, React, Angular

• Assist in the design, development and maintenance of Java-based backend solutions
• Implement and test features in an agile environment
• Write clean, maintainable code under the guidance of experienced colleagues
• Participate in code reviews and actively engage in technical discussions
• Document implementations, interfaces and configurations

Junior Java Software Developer

• Development and further development of backend services and APIs in Java (Spring Boot)
• Design and implementation of robust, scalable solutions with a focus on performance and security
• Participation in architecture decisions, code reviews, and establishing best practices
• Taking responsibility for the technical quality, operational reliability, and maintainability of components
• Mentoring colleagues and supporting the professional development of the engineering team
• Focus can be on Fullstack (frontend in Angular) or Backend development

Senior Java Software Developer

• Perform detailed design of system components, ensuring modularity and scalability;
• Collaborate with users to design and develop intuitive user interfaces;
• Develop, build and test program modules to ensure reliability and performance;
• Document system components and technical specifications for maintainability and knowledge sharing.

Full Stack Developer, .NET

• Review and challenge existing microservices architecture
• Validate service boundaries, API design, and data ownership
• Identify architectural risks, bottlenecks, and anti-patterns
• Support decoupling from Oracle-based legacy architecture (no direct JDBC access)
• Contribute to and review architectural documentation (Arc42, DACI)
• Design, review, and optimize Java/Spring Boot APIs
• Assess API scalability, resilience, and code quality
• Review event-driven integration patterns (e.g. Kafka, mapping services, GIS databases)
• Evaluate latency, idempotency, and system reliability

Senior Backend Expert

• Lead technical projects with a focus on meeting quality standards and commercial objectives
• Act as the interface between clients and the development team to define tailored software solutions
• Develop and enhance bespoke web applications using .NET Core, Microsoft SQL Server, JavaScript, TypeScript, Angular, DevOps, Azure and Git

Fullstack Software Developer, Project Manager – .NET, WEB

• Develop clean, stable, testable, and performant backend code
• Collaborate with interdisciplinary teams including architects, frontend engineers, QAs, and product owners
• Participate in code reviews, ensure test coverage, and adhere to CI/CD principles

Backend Engineer jobs in Austria

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