freelance English-speaking jobs in Bielefeld

System Engineer Tracker develops tailored solutions for global air traffic control. Responsibilities include system design, implementation, customer integration, and technical support. Requires a computer science degree and Linux/scripting experience.

Lead go-to-market sales strategy and build a high-performing sales organization for an AI voice platform. Requires 7+ years in sales leadership, expertise in scaling teams, and fluency in English and German.

Category Manager Logistics drives logistics procurement strategy within Indirect Procurement. Responsibilities include leading category strategies, managing vendor negotiations, and ensuring compliance. Requires 4-6 years in Indirect Procurement.

Manage 3PL operations and inventory coordination across Germany and the DACH region. Ensure accurate goods receipt processing, resolve inventory discrepancies, and manage operational exceptions with external logistics partners.

Lead software projects for customers and manufacturers, coordinating external developer teams across automation and web applications. Integrate AI concepts into solutions and drive automation initiatives within an Agile model.

Manage an EU book of business as a Customer Success Manager, focusing on renewal and expansion. Build account frameworks, act as a trusted advisor, and meet retention KPIs. Requires fluency in English and German.

Senior AI Software Engineer will design, scale, and productionize AI agents and LLM-powered systems to solve mobility challenges. Responsibilities include developing and maintaining production-ready AI systems, leading the practical adoption of AI across the company, and proposing and driving the technical roadmap for AI capabilities. Requires strong backend engineering background with proficiency in TypeScript and/or Python, experience building microservices, and hands-on experience designing and shipping LLM-powered systems.

Aufgaben:Support strategic IT topics and the team's daily business with a high degree of responsibility. Prepare and design presentations for management and global meetings, and create, edit, quality-assure, and revise text- and calculation-based documents such as communication concepts, business cases, and project or process descriptions.

We seek a Head of IT Applications Digitalization Delivery to lead IT and digitalization efforts supporting the Group's transformation and growth. This role is central to our operations.

About the teamAbout AWSWhy AWS? Amazon Web Services (AWS) is the world's most comprehensive and broadly adopted cloud platform. We pioneered cloud computing and never stopped innovating — that's why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses.

Quantum Software Engineer role at GWDG. Implement containerized FullStaQD, requiring software architecture and quality management skills. Must have a relevant degree and coding experience.

Own and evolve the COTS hardware platform foundation for live video production systems. Evaluate and optimize system architectures involving compute, video, networking, and OS. Configure Windows and Linux for real-time workloads.

Advanced Clinician Scientist role in translational oncology research. Requires an advanced medical doctor with Facharzt and habilitation, possessing an independent research profile in CAMINO pipelines. Part-time position starting March 1, 2027.

Serve as central project manager for M&A mandates, overseeing financial modeling and client interface. Requires 5-7 years of relevant experience, advanced financial skills, and business fluency in German.

Develop application software for two hardware platforms, ensuring smooth integration with cloud software. Design system services, implement cloud interfaces, and maintain CI/CD pipelines. Requires 5+ years in embedded systems with C/C++ and Linux experience.

Automobile Claims Adjuster III processes motor vehicle damage claims for USAA members in Europe. Duties include recording claim reports, damage assessments, and providing process information. Experience and expertise support team efficiency.

Senior Accountant Consolidation & Reporting role at One Mobility Group. This position supports a global team within a company specializing in electrified mobility solutions, requiring expertise in financial consolidation and reporting.

Own day-to-day marketing operations, managing content across social, website, and portfolio. Build and improve systems, applying AI tools thoughtfully. Requires strong copywriting, English, and a proactive, self-sufficient style.

Firmware Engineer role requires 5+ years in software, firmware, FPGA, or embedded systems. Responsibilities include evaluating embedded firmware, FPGA/RTL designs, and analyzing hardware/software integration for real physical systems.

Clinical Specialist for respiratory diagnostics in the DACH region. Support customers with product implementation, training, and clinical best practices. Requires strong knowledge of respiratory diagnostic equipment and fluency in German and English.