internship English-speaking jobs in Cologne

Senior freelance Project Lead for Service Networking will manage product delivery and lifecycle execution, coordinate network portfolio and operational priorities, and act as Product Manager for the Network product portfolio.

Art Director to develop creative concepts and visual ideas for campaigns, social media, and client projects. Collaborate with creative direction, copy, strategy, account management, and social media teams. Turn strategic thinking into clear, inspiring visual communication.

Manage a portfolio of TV & Film publishers, supporting their growth on TikTok through content and distribution strategies. Build and maintain relationships with partners, develop content and campaign strategies, and facilitate collaboration between publishers and creators.

As Business Controller for IT and R&D, you will partner with leadership teams, driving performance, enabling strategic decisions, and shaping the future of IT and R&D. You will own budgeting, forecasting, and long-term planning, prepare monthly closings and variance analysis, and develop recommendations to optimize business results. You will also support the development of IT and R&D strategy, assess business cases, and lead projects and initiatives.

Ciena is seeking candidates for various engineering roles at the Braunschweig Bonding Firmenkontaktmesse 2026. Interested applicants should submit an application and indicate preferred roles or areas of interest.

Delivery Project Lead for EU AMLR adaptation within Corporate Banking and KYC IT infrastructure. Requires experience in SDLC tracking, risk and release management, banking domain, and B2 German.

Leads a process engineering team in contactor manufacturing. Manages resources for process support, improvement, and product qualifications. Optimizes processes and technologies to ensure product quality and cost efficiency.

Drive DFS growth in the Enterprise customer segment by engaging with Dell Technologies sales teams, customers, and channel partners. Position financial solutions for large organizations to acquire Dell Technologies products and services.

Strategic Buyer (m/f/d) will define and execute procurement strategy, optimize global costs, and build supplier relationships. Requires a bachelor's degree, 3-5 years of purchasing experience, and strong analytical and communication skills.

Experienced Mud Men / Recycling System Operators needed for a long-term HDD project in Germany. Operate and maintain mud mixing and recycling systems, prepare drilling fluids, monitor fluid properties, and assist with site logistics.

Provides product and solution expertise to front-line sales teams. Ensures accurate equipment configurations and links product features to customer value. Supports sales plays, quotations, and customer meetings.

Manages construction projects from initiation to completion, including scheduling, budgeting, material procurement, and staff supervision. Ensures projects are delivered on time and within budget while adhering to safety regulations and client communication protocols.

Scientist will support analytical activities within an international pharmaceutical project. Responsibilities include method transfers, development, validation, and verification of analytical methods (HPLC, AAS, KF), analytical testing, and preparing protocols and reports.

Experienced Practice Manager to support the growth of Oliver Wyman Europe's Consumer, Technology and Telecommunications practice. The role orchestrates practice staff and support functions, manages day-to-day affairs, and provides support to the Regional Practice Head.

Product engineer to develop and validate automotive products for high-volume production. Manages product validation, acts as technical interface between teams and customers, and analyzes product performance. Requires experience in automotive product development and knowledge of CFD and/or FEA tools. Fluent English required, French a plus.

Doctoral Researcher to investigate structure and functional mechanisms of multi-component transport systems in bacterial biofilms, metabolite secretion, and membrane protein biogenesis.

Drive the incubation and commercialization of emerging portfolio offerings within Grid Consulting. Lead innovation initiatives, test new consulting approaches in customer environments, and translate customer challenges into reusable advisory methods.

Drive sales of power distribution solutions for data centers. Build relationships with General Contractors, EPCs, and data center operators. Identify, pursue, and close new projects.

You will work in a dynamic and innovative environment full of opportunities. With your commitment and passion, you have the chance to make a sustainable difference.

Develop and optimize CNC manufacturing processes for precision components. Lead new part introductions, create work plans and inspection plans, and build the quality management system. Act as technical point of contact for customers on manufacturing questions.