302 English-speaking jobs in Cologne

IU International University seeks a part-time Professor of Computer Science for its Köln campus starting October 1st, 2026. Responsibilities include teaching on-site lectures and supervising student exams and theses. Candidates must have a PhD in Computer Science or a related field, five years of work experience including three outside academia, and English language skills at C1 level.

Senior Backend Engineer (m/f/d) will develop core features for a high-traffic e-pharmacy platform. Responsibilities include building and extending backend services, creating API endpoints, and collaborating with a cross-functional team. Experience with Node.js, TypeScript, REST APIs, and DevOps practices is required.

Secure Redcare Pharmacy's Azure & Kubernetes Data & AI platform end-to-end, implementing security into CI/CD, infrastructure, data, and ML workloads. Utilize Azure DevOps or GitHub Actions, Terraform, and Azure services like Key Vault, Entra ID, and Data Lake. Work with Azure Policy, Microsoft Defender for Cloud, Microsoft Sentinel, and Kubernetes security features.

Leads a team of 3 product analysts, partnering with Product Managers to define and track key product metrics. Translates data into actionable insights to inform product strategy and feature optimization. Builds and scales reporting and dashboards to monitor product performance. Collaborates cross-functionally to drive data-driven decision making.

Senior Fullstack Engineer will design and build high-performance, scalable AdTech solutions. Responsibilities include developing Node.js/TypeScript microservices, building React applications, and integrating data systems. Experience with AdTech platforms is preferred.

Experienced AI Ops Engineer to design and build scalable SaaS products within an AI Lab. Responsibilities include developing data architectures, building MLOps foundations, and accelerating AI product development. Requires experience operating in high-availability SaaS environments and a track record of designing scalable systems.

Internship supporting global HR projects, including rewards, mobility, and people experience. Assists with international assignment program coordination, data management, and stakeholder communication.

Working student to support global HR projects, including rewards, global mobility, and people experience. Assists with international assignment program coordination, HR system data management, and stakeholder communication.

Develop, maintain, and improve ISCC certification schemes for Sustainable Aviation Fuels (SAF) and Alternative Marine Fuels. Monitor and assess aviation and maritime regulatory frameworks and their implications for ISCC certification. Design and implement certification frameworks to ensure regulatory alignment and scheme integrity.

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.

Own the lifecycle of N26's public cloud infrastructure, focusing on third-party tools, AI services, and integrations. Drive operational efficiency through automation and scripting.

Lead the development of Bitpanda's DeFi Wallet, a smart, non-custodial wallet for seamless and secure access to the decentralized world. Manage a team of 8 across web, mobile, backend, and blockchain domains. Define and deliver the wallet's technical roadmap, including account abstraction, secure key management, cross-chain interoperability, and dApp integrations. Collaborate with Product, Design, and Security to translate vision into scalable, compliant, and elegant technical solutions. Stay current on DeFi, smart contract standards, and new blockchain protocols.

Lead and mentor a team of engineers to build world-class mobile applications for digital assets. Drive innovation, ensure delivery excellence, and foster a collaborative environment. Collaborate with product managers, designers, and stakeholders to align team efforts with business goals and user needs. Oversee the technical delivery of features and improvements, ensuring timely and high-quality outcomes.

Develop and maintain a Kubernetes-based platform for the Data & AI department using IaC principles and tools like Terraform. Collaborate with engineering and product teams to define platform standards and improve reliability.

Design and implement scalable data pipelines and optimize data architecture using Azure Data Services, Databricks, and Big Data technologies. Collaborate with teams to understand data needs and ensure data architecture supports ongoing and future initiatives.

As a Growth Analyst, you will join the Consumer Membership Team to grow and retain the subscription consumer base. You will build and optimize dashboards, ensure data quality, and analyze user behavior to uncover actionable insights. You will also evaluate experiments and support strategic projects through data integration and model optimization.

The European Institute of Policy Research and Human Rights seeks Junior Research Fellows to learn and lead groundbreaking research in policy issues. Candidates will collaborate with experts, analyze data, and publish findings in academic and policy publications.

As a Platform Engineer, you will partner with development teams, identify user needs, and deliver value-driven solutions. You will ensure the security and up-to-dateness of critical Platform services like GitLab, Vault, and Datadog. You will contribute to custom feature implementation in Go and Typescript, and make systems observable to enable confident, fast decision-making.

Designs and implements Microsoft Teams voice infrastructure using Direct Routing and Cloud PBX. Troubleshoots voice quality issues and manages SIP trunking.

Junior Database Engineer Intern will assist in maintaining and improving database synchronization systems. Responsibilities include database performance monitoring, PostgreSQL administration, and documentation.