freelance English-speaking jobs in Bielefeld

Data Analyst for Finance to develop and maintain financial models, analyze business performance, and prepare reports. Requires a degree in Finance, Economics, or Business Administration and 3+ years of experience in financial modeling and data analysis. Proficiency in Power BI is required.

We're looking for an English speaking sales consultant to join our growing team in the Kaiserslautern/Ramstein area. We are a trusted name in the region, known for providing top-quality vehicles, exceptional service, and an unparalleled buying experience.

Experienced Senior Go Engineer needed for a growing digital start-up/scale-up. You will own core product development, collaborating with UX, engineering, and mobile teams. This role is mostly remote with occasional office visits. Requires B1+ German and fluent English.

As a B1 Technician, you will perform aircraft maintenance ensuring compliance with regulations and high standards of quality, safety, and time efficiency. You will document maintenance activities, provide updates, and support operational tasks.

Support Munich sales team in collaborative sales processes with a premium automobile manufacturer. Analyze market, customer, and sales data. Assist with strategic planning and logistics.

PhD student will use MINFLUX microscopy to track proteins during translocation into mitochondria. Tasks include establishing labeling techniques, isolating proteins, and contributing to publications.

Leads the marketing team in Germany, developing and implementing marketing strategies for field-force promoted brands. Manages product launches, oversees budgets, and analyzes market data.

Senior Manager HR Digitalization and Tools leads the development, implementation, and maintenance of HR systems and software solutions. This role develops and executes a digital transformation strategy for HR, aligning with organizational objectives.

Senior Software Engineer will develop production-ready software for sophisticated, distributed systems powering modern railway passenger information solutions. Responsibilities include designing software architecture, building secure software, and collaborating with system engineering experts.

IT Service Manager responsible for designing, implementing, and maintaining IT controls and security measures. Manages IT service processes, conducts audits, and reports on risks and controls. Requires experience in IT service management, ITIL, Matrix42, and relevant security standards.

Lead and scale the Battery Control System (BCS) Product Team, developing reliable, high-performance systems for energy storage. Guide a cross-functional team of firmware, hardware, and testing experts. Foster a culture of clear ownership, pragmatic execution, and strong technical standards.

Implementation/Client Onboarding Specialist to manage end-to-end implementation projects for veterinary customers in Germany, Austria, and Switzerland. Deliver remote and onsite training, configure software, and build relationships with stakeholders. Fluency in German and English required.

The GFZ is seeking a senior scientist to lead its Secondary Ion Mass Spectrometry (SIMS) user facility. Responsibilities include managing laboratory operations, advising scientists on SIMS applications, developing research strategies, and reporting on laboratory utilization. The successful candidate will have a PhD in the natural sciences, at least 5 years of experience with SIMS instruments, and expertise in mineralogy, crystallography, and sample preparation.

PhD position at the Institute for Molecular Pathogenesis, Heinrich Heine University Düsseldorf. Research focus: host-pathogen interactions, specifically how a host defense factor breaks down bacterial outer membranes. Requires M.Sc. in a relevant field, research experience in molecular biology, cell biology, and biophysics, and fluency in English.

Intern in the CEO Office will work on international expansion, process automation, and operational excellence initiatives. Must have completed two internships in a fast-paced environment and be solution-oriented.

Lead DevOps Engineer to design, own, and scale the multi-cloud backbone of IQA, an AI-powered SaaS solution. Define and execute the multi-cloud infrastructure roadmap, own the technical strategy for Kubernetes-based deployment infrastructure, and build, deploy, and monitor deployments across various cloud providers and on-premise setups. Engineer DevOps tooling and automation layers, own the infrastructure strategy including data, CI/CD, and orchestration, and develop and optimize APIs and data processing systems using Python. Collaborate with product and engineering leadership to translate business requirements into robust infrastructure capabilities.

This position manages and administers utilities supply and service contracts and agreements. Responsibilities include voucher certifying, utilities procurement control, and ensuring compliance with relevant regulations. Applicants must possess a German driver's license class B, office automation skills, and fluency in English (C1) and German (C2).

Architect end-to-end digital ecosystems connecting frontends, backends, and AI systems. Collaborate with stakeholders to define system architecture, ensuring scalability, reliability, and maintainability. Design integration interfaces and pipelines for GenAI models, visual AI tools, and enterprise systems. Guide teams through security, observability, and deployment best practices.

Senior Technical Product Manager needed for a growing consultancy. Must have several years of Product Management experience, a technical/development background, and exposure to Infrastructure products.

Senior MLOps Engineer will design, build, and manage Kubernetes clusters on AWS EKS for autonomous driving AI/ML workloads. Responsibilities include provisioning GPU clusters, implementing CI/CD pipelines, and developing infrastructure components. Requires a university degree in a relevant field and at least five years of experience in MLOps, DevOps, or Cloud Engineering. Expertise in Kubernetes, AWS EKS, and Infrastructure as Code is essential.