freelance English-speaking jobs in Bielefeld

Finance Director (m/f/d) – Insight to Impact Lead Germany will drive short‐ and long‐term performance across patient‐focused and go‐to‐market activities. This role leads the German Insight to Impact (I2I) capability, connecting strategy, finance, performance management and execution. The Finance Director will act as a trusted advisor to the General Manager and Leadership Team, providing strategic, financial and operational insights to support evidence‐based decision making.

We are building a next-generation Identity + AI Enforcement platform in Berlin. Following newly secured funding, we are looking for a technical co‐founder who will architect and build the core product from day one. We are looking for a visionary Founding CTO/CPTO for a hybrid role based in Berlin.

Senior Procurement Manager to lead procurement strategy for large data center construction projects. Responsibilities include procurement governance, package strategy, subcontract tendering, supplier risk management, and project support. Requires a degree in a related field, 10+ years' procurement experience in construction or engineering, and strong knowledge of subcontract procurement and negotiation.

The Senior Global Product Manager, Digital Modeling & Data Products is responsible for the strategic direction, lifecycle management, and commercial performance of Cytiva's GoSilico mechanistic modeling and process simulation portfolio. This role will execute initiatives that leverage proprietary data, digital tools, and data-driven service models to drive customer adoption. The successful candidate will own the product roadmap, collaborate with R&D, data science, and commercial teams, and translate technical capabilities into customer value.

Postdoctoral position in Computational Imaging and cryo-electron tomography. Develop computational methods for deformation-aware reconstruction in cryo-ET data.

Intern supporting Route-to-Market excellence and performance. Develop and maintain Power BI dashboards, analyze KPIs, and contribute to optimization projects.

Postdoctoral position in virology and molecular medicine available at Witten/Herdecke University. The position is funded by the German Research Foundation (DFG) and focuses on standardized virus preparations and cell culture systems for human adenoviruses.

As Director of Product, you will define and execute the strategy for sennder's core freight forwarding products, leading efforts to solve high-impact problems for shippers, carriers, and internal users. You will shape a product vision that drives scalable, intuitive, and impactful solutions through data-driven insights, customer focus, and emerging technologies.

Lead the academic development and quality assurance strategy across three colleges. Responsibilities include curriculum design, teacher development, and ensuring high teaching standards. Requires experience in academic leadership, curriculum development, and fluency in English and German.

Conduct and lead rigorous empirical research in digital transformation and digital business, aiming for publication in top journals. Teach at Bachelor and Master levels and collaborate in an international team.

Global MLM Leader / Brand Ambassador will build and drive a network of partners and investors, ensuring consistent volume growth and representing Assetara Limited in their region. Proven track record in Network Marketing, Affiliate Marketing, or High-Ticket Sales is required.

Leads projects in building and scaling new business segments for Carl Zeiss Vision Care, translating strategic opportunities into scalable business models. Combines strategic thinking with execution capability, driving implementation and scaling in a fast-changing environment. Acts as a central orchestrator, aligning cross-functional teams and ensuring efficient execution. Demonstrates strong entrepreneurial mindset, leadership, and communication skills.

The Country Medical Director (CMD) leads the Medical Affairs organization in Germany, developing and governing the local medical strategy. The CMD provides scientific leadership, ensures compliance with regulations, and collaborates with cross-functional teams. The role reports to the Vice President of Medical Affairs in Europe.

Manages a EUR 1 billion investment portfolio, designs hedging strategies for commodities and currencies, and reports to the Head of Group Finance & Support. Develops and owns the annual investment strategy, manages asset allocation, and selects external asset managers. Establishes and develops a risk reporting framework, ensuring compliance with investment guidelines and regulatory requirements.

Leads the Technical Services/Manufacturing Science team at a Cuxhaven manufacturing site. Oversees process optimization, new product introduction, quality assurance, and regulatory compliance. Manages a team of scientists and engineers. Requires a Bachelor's degree in a Scientific Field and 15+ years of relevant experience, including 10 years in leadership roles and 5 years in vaccine manufacturing.

Internal Medicine experts design clinical scenarios, evaluate AI-generated responses, and provide feedback to improve model performance. Must be board certified or board eligible with an active medical license.

Drive profitable growth within a defined territory by developing and expanding customer networks. Manage individual sales pipelines, support RFQs and pricing negotiations, and collaborate with customers to understand their needs and develop customized growth strategies.

Service Team Leader will lead a team of technicians, providing technical support and fostering professional growth. Responsibilities include reactive and preventive maintenance, responding to issues, and ensuring operational safety and regulatory compliance.

ThirtyEight Capital seeks entrepreneurial individuals to co-found businesses in the energy and climate space. This involves identifying, validating, and potentially building scalable and profitable ventures from scratch. Areas of focus include heating & heat pump ecosystems, energy financing models, and energy optimization. Ideal candidates possess entrepreneurial potential, operational experience, and a strong understanding of energy-related systems.

The European Institute of Policy Research and Human Rights AISBL seeks a remote Policy Researcher Intern for an 8-week program. Interns will conduct literature reviews, prepare research summaries, and draft a supervised research paper, policy brief, or analytical report.