intern internship English-speaking jobs in Klosterneuburg

Create unforgettable travel experiences for guests as a Hotel or Service Rep. Engage with international guests, identify their needs, and offer tailored recommendations. Promote and sell TUI experiences, exceeding sales targets and providing exceptional service.

The Joint Impact Model Foundation seeks an entrepreneurial leader to drive membership growth and strategic direction. This fractional role (60-80% time) focuses on membership development, go-to-market strategy, organizational direction, and team building. The Executive Director will work closely with the Technical Director to ensure alignment between technical and business objectives.

Lead and develop the Finance division, including Accounting, Controlling, Group Controlling, and Treasury. Manage financial planning and budgeting for the international Anton Paar GmbH Group. Ensure compliance with legal and regulatory requirements.

Support the Corporate Communications & Investor Relations team in preparing the Annual Report, including texts, presentations, and supporting materials. Review and proofread documents, ensuring accuracy and compliance.

Lead aviation operations for a combined MRO + FBO site in Austria. Drive operational excellence, customer relationships, and safety/quality compliance.

Senior Principal Backend Software Engineer leads the technical vision and architecture for mobile backend services. Defines long-term stack development roadmaps and future-proof architectures. Mentors engineers and drives organizational excellence in engineering practices. Requires advanced mastery of backend technologies including Java, Spring, Hibernate, PostgreSQL, AWS, and experience with system design, continuous integration, and agile methodologies.

Experienced treasury professional to drive business development and client advisory in Austria and the DACH region. Responsibilities include market research, client presentations, project management, and team leadership. Requires a strong network, corporate treasury or consulting experience, and fluency in German and English.

ATIA Ltd seeks reseller companies to find and generate clients for IT systems, web applications, and ISO standard services. Partners receive 20-30% of project value.

Senior Product Manager will drive innovative product capabilities for OpenPipeline, focusing on high performance and scalability. Responsibilities include defining product roadmap, collaborating with R&D teams, and partnering with product marketing. Requires 5+ years of product management experience in a B2B environment, technical understanding, and experience with cloud technologies.

Leads ICMPD's integrated policy and thematic specialist functions, ensuring strategic policy analysis and expertise support organizational work. Guides interventions and outputs to achieve coherent, high-quality results. Oversees policy output delivery and thematic expertise mobilization, turning insights into actionable recommendations. Provides senior leadership to a multidisciplinary team of specialists. Collaborates with stakeholders to align activities with organizational priorities.

The Security Architecture Team of the Competence Center Crypto & Security is part of this organization. Your Responsibilities:Specify, design, and review system software security architectures and implementations. Conduct threat analysis and risk assessments for security systems.

The World Bank Group is seeking a Senior Agriculture Economist to provide technical and strategic leadership on food safety in the Europe and Central Asia region. The role involves leading and contributing to policy dialogue, managing projects, and collaborating with internal and external stakeholders.

The Head of Financial Planning & Analysis leads global budgeting, forecasting, and financial analysis, ensuring effective resource use to achieve Light for the World's mission. This role oversees the FP&A team, provides financial insights to support strategic objectives, and monitors organizational financial health.

The Faculty of Medicine at Johannes Kepler University Linz seeks a University Professor for Pediatric Hematology and Oncology. The successful candidate will manage and develop pediatric hematology and oncology in teaching, research, and patient care.

About This Opportunity We are seeking a Business Development leader to drive client value creation, shape our market strategy, build key partnerships, and accelerate growth across the Utilities sector in EMEA, covering electricity, water, gas distribution, and power generation.

Software Architect responsible for the strategic design and technical governance of enterprise e-commerce platforms. Designs scalable and resilient solutions within the SAP CX ecosystem, particularly SAP Commerce Cloud. Collaborates with cross-functional teams to translate business requirements into architectural designs and mentors development teams on architectural principles. Requires 8 years of experience in enterprise software engineering, including 4 years as a Software Architect.

Head of Performance Marketing (f/m/d) will own the strategy, execution, and results across all performance channels. Responsible for scaling an 8-figure setup profitably, defining budget allocation, and leading a team. Requires proven experience in D2C performance marketing, channel mastery, and analytical skills.

Senior Software Engineer to build and maintain production-grade mobile applications using React Native with Expo. Integrate mobile clients with existing TypeScript APIs and services. Collaborate with product, AI, and backend engineers.

Speechify seeks a Senior Backend Engineer to build and scale AI-powered text-to-speech infrastructure. Responsibilities include developing state-of-the-art voice cloning and low latency TTS systems. Ideal candidates have proven backend development experience in Python, GCP expertise, and experience with Docker, Kubernetes, and deploying high availability applications.

Provides support to accommodation partners, contacting, informing, and advising them on meeting visitor demands on the Booking.com website. Builds accommodation webpages and trains partners on using Booking.com's extranet and systems.