71 English-speaking jobs in Cologne

Live and Work in Greece | Dutch-Speaking Customer Support Have you ever dreamed of living abroad, meeting people from all over the world, and gaining international work experience? This is your opportunity to turn that dream into reality.

Join our high-energy team in Cologne and help us bring smarter payment solutions to small businesses across Portugal. At SumUp, we’re on a mission to empower small merchants by making payments simple, accessible, and hassle-free. Today, we support over 4 million businesses in 30+ countries — and we’re just getting started.

Freelance lecturer to teach fundamental computer science algorithmics concepts, design courses, and conduct practical teaching sessions. Requires a computer science degree, practical experience, and C1 English proficiency.

Freelance lecturer to teach fundamental computer science knowledge with practical relevance, including user interfaces, business rules, web services, and quality constraints.

Freelance lecturer to teach operating systems, TCP/IP, distributed architectures, and mobile computing. Design courses using high-quality teaching materials and conduct practical teaching sessions.

Develop and operate photoelectron spectroscopy setups, including ARPES and PEEM. Support users in sample preparation and characterization techniques like SEM, FIB, optical microscopy, and other lab-based methods. Collaborate on scientific projects and participate in shift work.

Coordinates and performs measurements of superconducting coils at the SUNDAE1 facility. Maintains and upgrades the SUNDAE1 facility, including defining technical specifications for new components. Prepares, reviews, and updates risk assessments.

Design, develop, and commission ultra-precision mechanical systems for the XFELO project. Perform computer-aided engineering tasks, including design optimization and structural analysis.

DevOps Expert needed for 6-month project with potential extension. Responsibilities include analyzing and managing CI/CD structures, migrating software repositories from Git/Gerrit to GitLab, and creating technical documentation. Requires experience with Jenkins, Python, GitLab, Terraform or openTofu, and build/deployment pipelines.

Join our high-energy team in Cologne and help us bring smarter payment solutions to small businesses across Portugal. At SumUp, we’re on a mission to empower small merchants by making payments simple, accessible, and hassle-free. Today, we support over 4 million businesses in 30+ countries — and we’re just getting started.

IU International University seeks a part-time Professor of Operations Research to teach on-campus in Cologne starting October 1st, 2026. The position is initially for two years. Applicants must have a doctoral degree in Operations Research or a related field, at least five years of professional experience including three years outside of academia, and expertise in Operations Management and Business Mathematics.

IU International University seeks a part-time professor (m/f/d) for Operations Research, initially for 2 years, starting October 1st, 2026. The professor will teach on-campus lectures, supervise students, and contribute to the development of teaching formats. Applicants must have a doctoral degree in Operations Research or a related field, at least five years of work experience (including three years outside academia), and English language skills at C1 level.

Design intuitive, accessible, and impactful digital healthcare experiences for millions of customers. Collaborate with cross-functional teams to shape products from discovery through continuous optimization.

Support founders in fundraising, partnerships, and go-to-market strategy. Conduct market, competitor, and technology research. Prepare investor materials, presentations, and external communications. Drive operational execution and process optimization.

Working student supports mechanical design, system assembly, and component procurement. Must be enrolled in a relevant program and have a structured, hands-on approach. CAD experience and fluency in English are required.

Lead and develop a large Accounts Payable organization, ensuring efficient and scalable operations. Drive process improvements, automation, and system usage in a complex, high-volume environment. Collaborate with stakeholders across Finance, Procurement, and other departments.

Deliver groceries to customers efficiently by e-scooter or e-bike. Meet and exceed delivery targets while providing exceptional customer service. Earn at least €13.90 per hour plus tips.

Deliver groceries to customers efficiently by e-scooter or e-bike. Maintain a high level of customer service and consistently meet delivery targets. Must be at least 18 years old with a valid work permit, driving license, and English or German language proficiency.

Deliver groceries to customers efficiently by e-scooter or e-bike. Meet and exceed delivery targets while providing exceptional customer service.

Deliver groceries to customers efficiently by e-scooter or e-bike. Maintain a focus on delivery targets and exceed them. Earn at least €13.90 per hour plus tips.