22 English-speaking jobs in Cologne

Data & Backend Engineer will design, build, and operate database integrations and APIs for system and frontend integration. Responsibilities include building and maintaining data warehouse structures, designing and implementing data and AI pipelines, and implementing DevOps standards. Requires a university degree in a related field and at least 5 years of experience in data engineering, database design, API development, and DevOps.

Manager / Senior Manager will assess strategic plans, conceptualize and implement M&A deals, and manage projects for national and global clients. Requires a Master's degree, 5-8 years of experience in (transaction) advisory, and fluency in English. Additional languages are advantageous.

Develop and maintain internal tools, frameworks, and infrastructure for SumUp's iOS app. Contribute to CI/CD and developer tooling. Requires 3+ years of iOS experience with Swift and knowledge of modern frameworks.

Leads sales initiatives for UPS Healthcare's HealthTech product in Europe. Develops and implements sales strategies to secure new revenue. Collaborates with sales teams and operations to achieve targets.

Postdoctoral Researcher to develop and execute a two-year research project on technology and statehood. Requires a doctoral degree in social sciences and a research proposal.

Postdoctoral Researcher in Social Sciences to conduct an independent two-year research project. Focus areas include state technological competitiveness, AI governance, and digital twins. Requires a recent doctoral degree and a compelling research proposal.

Postdoctoral Researcher in Social Sciences to conduct an independent two-year research project at MPIfG. Focus areas include technology, statehood, and global tech races. Requires a recent doctoral degree and a compelling research proposal.

PhD student to develop methods and data analysis strategies for GHz speckle experiments using X-ray Photon Correlation Spectroscopy (XPCS). Will explore the application of X-ray Speckle Visibility Spectroscopy (XSVS) and simulate GHz speckle experiments.

Lead the strategic value-add services for SoSafe, a human risk management platform. Develop a consulting methodology focused on driving behavior change and risk reduction. Build and manage a consulting practice, translating the SoSafe Maturity Model into a practical approach. Serve as a subject matter expert and advocate for human risk management, advising clients on security posture and strategic value.

Freelance Lecturer in Industrial Engineering and Management focusing on Human-Robot Interaction. Teach topics like social robotics and AI, design courses, and conduct practical sessions. Requires an Engineering degree and C1 English.

Advance HTS tape-based undulator development for FEL applications. Responsibilities include modeling, investigating quench behavior, prototyping, and manufacturing process design. Requires MSc/PhD in relevant engineering or physics.

Advance HTS tape-based undulator development for FEL applications. Responsibilities include modeling, investigating quench behavior, prototyping, and validating HTS undulator coils. Requires MSc/PhD in relevant engineering/physics with experience in superconducting magnets or accelerator physics.

The Account Manager Medical Ophthalmology of Germany drives sales of advanced medical solutions to public and private hospitals and clinics. This role focuses on achieving market share growth and profitable revenue within the Ophthalmology sector.

Lead the acquisition and management of a high-potential, family-owned SME in Germany through AIA's MBI Program. Requires 5+ years in general management with full P&L accountability and deep German business roots.

Loader Unloader nightshift, parttime role involves loading and unloading aircraft and truck containers, plus sorting and scanning parcels. Requires good German or English skills and willingness to do physically demanding work.

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 in Computer Science needed for 48 teaching units starting October 1, 2026, in Cologne. Teach fundamental knowledge with practical relevance, design courses, and conduct teaching sessions. Requires a Computer Science degree, relevant work experience, and C1 English proficiency.

Freelance Lecturer in Cyber Security Host and Software Forensics. Teach digital forensics, malware analysis, and reverse engineering. Requires a degree in Cyber Security, relevant practical experience, and C1 English.

Freecash offers a remote, flexible opportunity to earn money by testing mobile games, participating in market research surveys, and completing digital offers. Earn coins for completed tasks, exchangeable for cash or gift cards.

Postdoctoral researcher to develop attosecond science experiments using hard X-ray FEL radiation. Requires a PhD in physics or a related field and research background in experimental attosecond science. Experience with X-ray techniques and/or FEL science is an asset.