413 English-speaking jobs in Vienna

QA Engineer for a multi-country conversational AI product. Responsibilities include planning and executing UI and AI-driven conversational flow testing, writing automated tests, and contributing to AI evaluation workflows. Requires experience in manual and automated testing, web and mobile test automation, and structured testing environments.

As a QA Engineer, you’ll design automated test suites, ensuring full coverage across platforms while maintaining high standards in regulated banking environments. Your work will directly support compliance with frameworks like MiFID II, PSD2, and GDPR.

Leads and optimizes property operations for owned Data Centre and Non-White Space assets. Manages teams, vendor contracts, budgets, and ensures compliance with global standards. Requires strong leadership, financial acumen, and stakeholder management skills.

Position: Phlebotomist 4133 Location: Vienna, VA Schedule: 8AM to 5PM M-F Projected duration: 3 months Job code:CVDJP00034133 benefits are available Comfortably drawing alone and doing hard sticks minimum 2 years of experience The main function of a phlebotomist is to assist in performing various assigned duties, trouble shooting, training and making work flow recommendations.

Develop and deploy machine learning models for forecasting, optimization, and decision support in electricity trading. Collaborate with data engineers and ensure models are reproducible, testable, and monitorable.

We are seeking ambitious entrepreneurs to build and scale AI startups. You will own your startup, receive funding support, and benefit from mentorship and access to a network of top talent and investors. Must be based in Europe or the Americas and fluent in English.

Technical Project Manager for client-facing datacenter projects. Manages full project lifecycle, from client onboarding to technical delivery and budget oversight. Requires 3+ years of datacenter operations experience, technical client interaction, and proficiency with ITSM tools.

Senior .NET Backend Engineer will design, develop, and maintain scalable backend systems and APIs. Collaborate with cross-functional teams to translate requirements into technical solutions. Provide technical guidance and lead code reviews. Troubleshoot issues and participate in on-call rotation.

Study Start-up Manager to drive the initiation phase of clinical studies in minimally invasive, image-guided therapies. Responsibilities include protocol finalization, site activation, regulatory submissions, and cross-functional collaboration. Requires a university degree in a relevant field, 3-5 years of clinical research experience, and proficiency in GCP, ISO 14155, and Microsoft Office.

-We have an exciting opportunity for you to join our team as a (INSERT JOB TITLE) Who we are:FedEx is the largest express transportation company in the world, connecting more than 220 countries and territories. We work every moment to deliver the most important package of someone’s day.

At more than 100 award-winning properties worldwide, The Ritz-Carlton Ladies and Gentlemen create experiences so exceptional that long after a guest stays with us, the experience stays with them. As the premier worldwide provider of luxury experiences, we set the standard for rare and special luxury services and seek for the best hospitality professionals worldwide.

Software Engineer to design, develop, and maintain software for quantum key distribution (QKD) systems. Responsibilities include cybersecurity enhancement, system optimization, and process improvement. Experience in systems programming languages (C, C++, Rust), secure software development, and one or more of the following areas is preferred: security-sensitive systems, cryptography, fail-safe systems, distributed systems.

View job here Senior Data Scientist (m/f/d) - Focus Industrial AI Full or Part Time Hybrid Wien, Österreich With Professional Experience 12/19/25 Successful GROWTH is a DECISION - Driven by data Are you ready to have a positive impact on sustainable software & AI solutions with us? We are craftworks, a handpicked and diverse team of creative thinkers and implementers.

Develop and improve Quantum Key Distribution (QKD) payloads for space applications. Contribute to subsystem design, collaborate with electronics and thermo-mechanical engineers, and execute laboratory testing. Prepare technical documentation and support environmental and space-qualification campaigns.

Design and develop high-performance electronics for quantum key distribution (QKD) and optical payloads for space and ground systems. Own end-to-end hardware development from system architecture to board-level implementation and lab validation. Collaborate with optical, FPGA, and software engineers to define system requirements and interfaces.

Define, evaluate, and ensure compliance with cybersecurity requirements for space and ground systems. Engineer and design safety- and security-critical requirements for satellite missions. Manage subcontractors and drive communication with project partners.

As a Product Assurance Engineer, you will define and implement a tailored product assurance strategy for space technology maturation programs, ensuring alignment with ECSS standards and customer requirements. You will lead PA activities across the product lifecycle, participate in design reviews and risk assessments, and conduct audits and inspections to ensure quality requirements are met.

We are seeking ambitious entrepreneurs to build and scale AI startups. Receive a salary, funding, and mentorship from unicorn founders. You will own your startup, participate in a personal development program, and receive support in hiring, fundraising, and product-market fit. Must be based in Europe or the Americas and fluent in English.

Senior Software Engineer to build and maintain high-performance, scalable backend systems using Python. Develop core trading infrastructure, design APIs, and work with databases. Lead technical initiatives and drive architectural decisions.

Senior Product Manager (Product Marketing) will guide a cross-functional team to success, developing and implementing features for the shop, checkout, payments, and marketing aspects of the app and web platform. Responsibilities include defining OKRs, identifying opportunities for improvement, collaborating with designers and engineers, and advocating for the product vision. Requires 4+ years of experience in product management, excellent communication skills, and proficiency with project management tools.