freelance English-speaking jobs in Bielefeld

Develop and implement sales strategies to acquire new clients in the areas of EPC, IPP, and new markets (UK and Scandinavia). Sell and consult on power control, monitoring, and hybrid energy management solutions. Collaborate with Proposal and Product Management, and represent the company at trade fairs and congresses.

This part-time position involves loading, unloading, shipping, receiving, scanning, sorting, and stocking packages. May utilize heavy machinery. Requires ability to lift up to 70 lbs., read and memorize postal codes, and work flexible hours. Warehouse experience is preferred.

Nexi seeks a Partner Account Manager to identify and acquire new Software Vendor partners. This role involves building compelling business cases, leading negotiations, and driving commercial and technical partnership success.

Software Engineers develop and operate federated data catalogs and containerized data services for climate model data. Responsibilities include designing, deploying, and maintaining data services, collaborating with international partners, and implementing event-driven systems.

International SOS seeks a Registered General Nurse to provide in-person patient support and coordinate medical updates for U.S. military beneficiaries in European hospitals.

Marketplace Coordinator to manage and develop national and European online marketplaces. Responsibilities include optimizing product listings, managing marketplace activities, monitoring KPIs, and collaborating with marketing, sales, and product management. Requires a degree in E-Commerce or Business Administration and experience in marketplace management.

PhD student to develop methods for reproducible production of nanoscale drug carriers, characterize their structure and optical properties, and quantify Pt-drug loading.

The HR Administrator will prepare and execute monthly payroll, manage employment contracts, and coordinate with external agencies. They will also prepare reports, act as a contact for stakeholders, and support the recording and correction of attendance times.

Senior Analyst to design, evolve, and maintain group-wide price forecasting methodologies and standards. Responsibilities include model review, market analysis, and stakeholder management. Requires a Master's degree in a quantitative field, 5-7+ years of experience in energy markets, and strong Python and communication skills.

Leapsome seeks a Head of Growth & Lifecycle to architect and lead the company's global expansion strategy. This role owns the strategy and execution of the demand engine, accountable for Sales Accepted Opportunities (SAOs), qualified pipeline, and customer expansion revenue. The ideal candidate will design market-focused go-to-market strategies, master the full buyer journey, and partner with Sales, Product, and Customer Success.

This Key Account Manager role focuses on strategic partnerships for FTTX rollout across Germany. The successful candidate will manage relationships with municipalities, authorities, and partners, driving projects forward and coordinating communication.

The Senior Data Modeler defines and governs enterprise-grade data models, translating business concepts into scalable data structures. This role designs models for cloud-native platforms, ensures interoperability, and mentors data analysts. The Senior Data Modeler collaborates with stakeholders to translate business requirements into data designs and enforces data modelling standards.

The Threat Intelligence Specialist safeguards Deutsche Börse Group's global operations against cyber threats. This role collects, analyzes, and delivers actionable intelligence to guide business decisions and reduce risk. The expert collaborates with Security Operations, Incident Response, Data Protection, and Risk Management teams.

Lead and mentor a development team in shaping and delivering large-scale solar PV and BESS projects across Germany. Manage the full permitting cycle, coordinate with stakeholders, and oversee project financials.

Assist in strategic and operational tax activities, supporting business partners with tax planning and compliance. Support the Tax department in establishing governance processes and defending tax structures.

Business Development Manager will focus on new business revenue growth through prospecting, qualifying, and closing deals. Responsibilities include preparing tenders, analyzing client needs, and ensuring consistent achievement of sales targets. Requires 5+ years of freight industry experience, excellent client orientation, negotiation skills, and communication skills.

As an Amazon Fulfillment Associate, you will select, pack, and ship customer orders. Duties include receiving and putting away inventory, loading boxes into trucks, and operating powered industrial trucks. You must be able to lift up to 15kg, stand, walk, and follow directions.

This role involves auditing carriers to ensure compliance with contractual, legal, and regulatory requirements. The successful candidate will conduct carrier assessments, identify risks, and propose mitigation solutions. They will also deliver detailed reports to carriers and internal stakeholders.

The Center for Information Technology and Media Management (ZIM) at the University of Potsdam seeks a System Administrator to maintain and develop IT systems, particularly the university's central wiki. Responsibilities include operating and optimizing IT systems, planning and implementing migration solutions, and providing consulting and support.

Senior AI Engineer with 5+ years of software development experience and 3+ years in implementing and industrializing AI solutions. Expertise in Generative AI, Computer Vision, Natural Language Processing, MLOps, or platform development. Experience with data engineering, cloud infrastructure, and GitOps practices.