freelance English-speaking jobs in Bielefeld

The Leibniz Institute for Tropospheric Research seeks a Head of the European Center for Aerosol Calibration and Characterization (CAIS-ECAC) and Researcher in Atmospheric Microphysics. The position involves research, strategic management of CAIS-ECAC, ensuring scientific standards for aerosol characterization, and international collaboration.

Collect monthly installments from customers facing arrears, negotiate restructuring agreements, and utilize internal tools to assist customers in resolving payment issues.

The Maintenance Technician ensures the safe and reliable operation of technical equipment and facility systems. Responsibilities include preventive and corrective maintenance, troubleshooting, and repairs. The role supports continuous improvement initiatives and requires strong electromechanical, automation, and problem-solving skills.

The Chief Financial Officer (CFO) is responsible for all financial and accounting matters of the Berlin production site. The role ensures financial transparency, governance, and performance management, collaborating with the Plant General Manager and the Finance Service Center in Lodz, Poland. The CFO prepares group reporting packages, ensures compliance with corporate standards, and analyzes production, cost, and performance KPIs.

Health and Safety Manager needed for a major Data Centre project in Frankfurt. Oversee Principal Contractor operations, ensuring compliance with Health and Safety standards. Conduct site audits, lead accident investigations, and review systems of work. Requires experience in Data Centres, construction, or M&E sectors, NEBOSH/NCRQ Diploma, and excellent communication skills.

This internship offers a unique opportunity to work with a German commercial vehicle OEM. You will assist in defining functional and non-functional requirements, conduct user research, and develop service concepts. Responsibilities include creating UX concepts, detailed specifications, and UI assets. Must be enrolled in a Bachelor or Master program with strong research, communication, and UX/UI design skills.

Senior Project Development Manager will lead complex energy infrastructure projects from ideation to Final Investment Decision (FID). Experience in renewable energy, energy infrastructure, or the SAF/P2L/Hydrogen/Clean Fuels/P2X economy is required.

Junior Graphic Designer will manage and review design outputs for European subsidiaries, develop design guidelines, and oversee social media content strategy.

Supports and manages recruitment processes, candidate communication, and new starter integration. Maintains personnel data, coordinates HR initiatives, and provides first-level support on HR policies.

The Yard Area Manager manages yard operations, coordinating with Dock, Receive, and Ship teams to ensure FIFO processing and mitigate Customer Experience Risks. This role requires program management skills, data analysis, and strong communication to influence change.

Leads sales strategy and business development for advanced mobility technologies in EMEA, targeting automotive OEMs and Tier-1s. Builds and manages a regional sales team, driving revenue growth and customer satisfaction. Requires 15+ years of experience in automotive engineering services sales, a proven track record of landing and expanding large strategic accounts, and strong understanding of the evolving mobility ecosystem.

Administrative Specialist to support European Sales Director and team, bridging communication between China headquarters and Europe. Responsibilities include office management, logistics coordination, customer service, and HR support. Requires 3+ years of administrative experience, fluency in English and German, and proficiency in Microsoft Office.

Finance Manager responsible for establishing, maintaining, and optimizing manufacturing and financial accounting processes in compliance with HGB. Leads monthly and annual closing activities, prepares financial statements, and provides accounting guidance to business departments.

Experienced phlebologist or vascular surgeon sought to implement diagnostic and therapeutic procedures for venous diseases. Will advise and treat patients with conditions such as varicose veins and chronic venous insufficiency. Collaborate with a team of doctors, nurses, and therapists.

Cloud DevOps Engineer will design, implement, and maintain scalable cloud infrastructure on AWS. Responsibilities include managing CI/CD pipelines, monitoring system performance, and collaborating with development teams. Requires a Bachelor's degree in a related field, strong AWS experience, and proficiency in infrastructure-as-code tools and containerization technologies.

Leads the transformation of global pricing and quotation operations for ocean freight, optimizing the end-to-end quotation lifecycle and enabling automated pricing, quotation, and invoicing. Responsible for process design, digital tool deployment, rate card management, and data quality governance. Requires extensive experience in global ocean freight pricing, proven process optimization and digital transformation expertise, and strong leadership skills.

Executive Assistant to support a Managing Director, Principal, and two Analysts within a global private equity firm's Investor Relations team. Responsibilities include managing complex diaries, travel arrangements, organizing events, and maintaining the CRM system. Requires fluency in German and English, 2-3 years of experience as an Executive Assistant, and exceptional organizational skills.

Senior Project Manager to lead data centre projects from initiation to closure. Manage scope, budget, schedule, quality, and risk, ensuring compliance with governance protocols. Lead a team, build stakeholder relationships, and drive on-time delivery.

The Max Planck Institute for the History of Science seeks a Publications Manager to shape the linguistic and editorial quality of department publications. Responsibilities include copyediting, developmental editing, proofreading, formatting, and managing academic publication projects.

Supports safety process systems through inspections, accident data analysis, and investigation reports. Develops safety procedures and training programs.