freelance English-speaking jobs in Bielefeld

Provide end-to-end cyber security support for projects. Lead the definition of security requirements and concepts, design secure architectures, and conduct risk assessments. Act as a security officer for aerospace projects and coordinate with stakeholders to ensure on-time and on-budget delivery.

Lead technical design and delivery of HVDC cable systems, including accessories, fiber optic systems, and cable monitoring. Manage project phases from permitting to commissioning.

This role supports the PBV Product Team in defining Kia’s mid- to short-term PBV product strategy for Europe. The Assistant Manager will translate market intelligence into actionable product direction, defining core vehicle characteristics and features based on EU market trends, HMG and Kia technology strategies, and a 3–5 year planning horizon.

Account Manager needed for end-to-end deal management in German B2B finance. Manage full sales and credit cycle, including prospecting, credit analysis, and deal structuring. Must have experience in large corp invoice financing or similar banking environment. Fluency in German and English required.

Provides technical support in a biopharmaceutical laboratory, performing analyses, assisting with method validations, and training new team members. Requires experience in a biopharmaceutical laboratory and proficiency in analytical methods and MS Office.

As Director of Accounting and Reporting, you will build and refine the financial systems infrastructure for a rapidly growing digital bank. You will own the book-close process, ensure data integrity, and navigate a complex regulatory landscape.

Development Engineer (m/f/x) needed for MMIC and RFIC characterization in the micro- and millimeter wave range (>100 GHz). Responsibilities include on-wafer measurements, RF station setup and operation, S-parameter, power, and linearity measurements, and data analysis. Requires a degree in electrical engineering, RF technology, microelectronics, or physics and several years of experience in MMIC/RFIC characterization.

NDT Product and Application Engineer provides technical support, conducts product demonstrations, and trains customers and partners on X-ray systems.

As an Asset Management Specialist, you will contribute to private debt and private equity investment structures, provide accounting analysis for alternative asset investments, and support private asset management throughout the investment lifecycle.

Lead teams and manage transaction tax engagements across Germany, Europe, and globally. Provide tax advice on buy-side and sell-side transactions, including due diligence reports and structuring.

Design and implement scalable backend services for an internal automation platform using Go (Golang). Build and maintain CI/CD pipelines, optimize developer workflows, and develop RESTful APIs. Collaborate with teams to translate pain points into technical solutions.

The Strothoff International School is a bilingual, international school. In our pedagogical concept, we follow both the Hessian education plan and the international IB curriculum. On our family-friendly and modern campus in Dreieich (near Frankfurt), we offer around 400 children

Senior System Administrator will act as onsite technical lead for the Berlin office, ensuring smooth IT operations and driving improvements. Responsibilities include providing 2nd-level support, managing Microsoft 365, server infrastructure, and leading IT projects.

Lead strategy consulting engagements, driving transformational results for clients in industrial goods, packaging, and chemicals. Expand client base and win new business utilizing industry connections. Provide empathetic leadership and mentorship to a team of consultants. Shape the strategic direction of TTE Strategy.

Supply Chain Quality Engineer for Printed Circuit Assembly (PCA) will ensure manufacturing quality and reliability of PCBAs throughout the outsourced supply chain. Responsibilities include auditing and developing suppliers, implementing process monitoring strategies, and resolving technical issues.

Leads and scales Xometry's manufacturing partner ecosystem in EMEA, driving partner acquisition, onboarding, and performance management. Responsible for aligning partner supply with global and local demand, optimizing costs, lead times, and quality. Collaborates with Operations, Quality, and Sales teams to ensure partner success and fulfillment of customer orders.

Manage the entire sales process in the Netherlands, from lead generation to partnership development. Build relationships with healthcare professionals, retailers, and key partners. Act as the face of NORSAN at industry events and serve as the primary point of contact for clients.

Cook (m/w/d) needed for full-time, permanent night shift in Munich. Prepare daily menus from scratch, adhering to recipes and standards, across various dietary requirements. Minimum 2 years culinary training or kitchen experience required. Fluent English necessary.

Senior Software Engineer to ensure fast, secure, and reliable releases for the Global Monitoring Service (GMS) application. Responsibilities include managing container-based application lifecycle, CI/CD pipelines, and deployments on customer-isolated Kubernetes clusters. Requires 10+ years of software engineering experience with a focus on infrastructure or DevOps, experience with Kubernetes, and a track record of owning and optimizing CI/CD pipelines.

Master's Internship in Research & Development (R&D) for Sports Medicine focusing on software engineering. The internship will involve developing and evaluating novel analysis methods for patient-specific solutions using AI/ML techniques. Ideal candidates have a master's degree in computer science, software engineering, or a related field and experience with AI/ML model development.