freelance English-speaking jobs in Bielefeld

Experienced Oracle DBA (L3) to support and manage high-performance Oracle database environments. Expertise in Exadata, RAC, ASM, Dataguard, and Performance Tuning required.

Ensures stable operation of KRITIS control systems and core infrastructure components. Responsible for IT components in OT environments, including networks, servers, and virtualization platforms. Develops and maintains standardized IT/OT architectures. Analyzes and resolves malfunctions, plans and implements changes, and evaluates new technologies. Maintains technical documentation and manages service providers.

As a Buyer, you will manage prices, quantities, and delivery timelines for semiconductor suppliers. You will coordinate deliveries, negotiate contracts, and handle purchase orders.

Support the Inside Sales Management team in daily operations, customer meetings, and market analysis for PV and ESS solutions in Europe. Coordinate activities between departments.

As the first in-house Sales/Commercial Engineer, you will build and lead the sales organization, growing into Sales Director over three years. Responsibilities include managing RFQs, building customer relationships, cold outreach, technical support, and pipeline management. You will build a sales team, define sales strategy, and represent the company on major projects. Minimum 5 years of B2B sales experience, fluency in English and German, and the ability to handle long sales cycles are required.

The Helmholtz-Zentrum Hereon seeks a Scientist in Marine Digital Innovation to develop products for predicting and protecting marine biodiversity within Digital Twins of the Ocean. The position focuses on coupled hydrodynamical-wind waves and sediment modeling and contributes to the development of Digital Ocean Twins.

Leads Northern Europe client coverage, driving sales strategy execution and achieving financial targets. Manages sales and relationship management resources, identifies growth opportunities, and builds relationships with key stakeholders. Ensures robust governance and compliance while fostering a collaborative culture. Requires 15+ years of experience selling to institutions, 7+ years of sales leadership, and knowledge of investment management sales practices.

Support the Voith Group's Division Hydro as an intern in Customer Service & Sales. Responsibilities include tracking quotations, coordinating customer visits, preparing customer presentations, and supporting the organization of training sessions. The ideal candidate is a student in a technical field with an interest in sales and experience with customer interaction.

Process Planner / Production Planner (m/f/d) for a full-time position (35 hours/week) with experience in the automotive sector. Responsibilities include planning, optimizing, and industrializing manufacturing and assembly processes. Experience in the Mercedes-Benz environment is desirable.

Lead and manage a team of Accounts Receivable specialists overseeing billing and collections for German locations. Optimize AR processes, analyze revenue metrics, and act as a financial interface for members.

Senior Embedded HMI Software Engineer to design, develop, and maintain HMI applications for medical devices on Embedded Linux platforms. Requires experience with Qt, C++, and software development in regulated industries.

The Chair of Anglophone Literatures in a Global Environment seeks a PhD candidate to work on a research project in global Anglophone literatures. Responsibilities include conducting research, teaching one seminar per semester, and supporting the Chair with administrative tasks.

We are hiring for various roles including Customer Support, Sales, O2C, and Game Presenting in sunny European destinations. Must have C1/C2 proficiency in one of the listed languages and EU citizenship, work permit, or refugee status.

About the position As a Logistics Coordinator (m/f/d), you will manage production and materials planning and ensure a reliable supply to the production department. You will coordinate material flows, work closely with internal departments and suppliers, and respond flexibly to last-minute requests.

Evaluate search outcomes for App Store Content and conduct research using online tools to assess query accuracy and intent. Must have full professional proficiency in English and German and familiarity with current German business, media, and cultural affairs.

Guide customers through their sustainability management journey, deepening partnerships and ensuring Tanso's offering delivers long-term value. Provide hands-on support and best practices across carbon accounting, regulatory reporting, and software adoption. Manage a portfolio of customers, identify growth opportunities, and track key metrics.

Internship for a talented and creative student to refine the deepeye® TPS interface, create prototypes, and ensure intuitive AI output for ophthalmologists. Collaborate with product, tech, and clinical teams to improve user experience and integrate software into clinical workflows.

Systems Designer for Flight Control System (FCS) at Airbus Defence & Space in Manching. Responsibilities include defining FCS architecture, redundancy management, failure identification, and requirement definition and validation. Requires experience in Systems Engineering, Requirements Definition, and Flight Control/Flight Management Systems. Proficiency in Python, Doors, and C++ is desired.

Postdoctoral Researcher (f/m/d) will contribute to the research professorship "Public Social Sciences and Humanities: Key Societal Debates" focusing on environmental humanities, public humanities, migration, decolonial discourse, indigenous studies, and creative writing. Responsibilities include developing and implementing a postdoctoral research project, organizing workshops and events, preparing academic manuscripts, and participating in blog development and grant proposals.

Supports customer reference and story creation processes. Guides customer reference journey from nomination to official status. Proofreads and provides feedback for executive presentation decks and customer-facing assets. Compiles customer information with an eye toward AI, sustainability, and innovation. Collaborates with stakeholders across marketing, sales, and sustainability teams.