freelance English-speaking jobs in Bielefeld

Supports the Corporate Security, Safety and Forensics team in security and forensics areas. Tasks include loss prevention, incident management, crisis management, risk assessment, security programs & compliance, investigations, and event security. Requires a university degree in a related field, minimum 3 years of relevant experience, proficiency in MS O365 Suite and ERP systems, and fluency in English and German.

Strategic Account Executive to drive new business within a major German reinsurer. Focus on building relationships, identifying opportunities, and delivering data and AI solutions. Proven track record of exceeding revenue targets in complex enterprise sales environments.

Global Marketing Communications Specialist will develop and execute integrated communication initiatives to strengthen A2MAC1's brand presence. This role manages A2MAC1's digital presence, leads content creation, and collaborates with global and regional marketing teams.

Leads collective bargaining negotiations for assigned group companies, providing labor and collective law advice to management. Develops negotiation strategies, conducts meetings, and advises on post-negotiation activities. Requires a completed law degree, extensive experience in labor law, and strong negotiation skills.

As a SMS Quality Conformance Manager, you will contribute to the SMS by solving cases, analyzing speak-ups, and implementing corrective actions. You will lead teams, act as an interface to stakeholders, and manage the backlog of SMS cases.

Content Moderators evaluate user-generated reports and review, block, and delete content that violates community standards. Must have excellent Danish and English language skills and be able to work in a rotating shift schedule.

soonami GmbH seeks an Entrepreneur in Residence to build their startup within a 3-month program. Applicants must demonstrate experience launching or scaling a startup, expertise in AI or Web3, and strong remote work skills.

This Junior CRM Marketing Manager role supports the execution of CRM strategy across email, WhatsApp, and printed media. Responsibilities include planning and sending newsletters, optimizing content, supporting automated flows, and assisting with loyalty and referral programs.

As a Senior Account Executive, you will acquire new enterprise customers and drive revenue growth through new logo acquisition. You will identify and engage economic buyers, position solutions with clear business value, and close high-value deals.

The Corn Pathology Lead will develop and execute disease and pest resistance R&D strategies for corn. They will lead resistance trait discovery projects, manage timelines and stakeholder relationships, and apply expertise in phytopathology, genetics, and project management.

Data Engineer (m/f/d) will build data products around customer feedback, develop and operate ETL/ELT processes, and automate data flows. Requires at least three years of experience building scalable data pipelines and data warehouse architectures, strong Python skills, and expertise in SQL and NoSQL systems. Cloud platform experience, ideally GCP, is also required.

As an Enrollment Advisor, you will attract, advise, and enroll prospective students at XU Exponential University. You will achieve enrollment targets, provide program guidance, and build relationships with educational partners.

Photonics engineer to develop test systems for optical telecommunications. Requires knowledge of optics/photonics, fiber optics, and high-speed optical communication systems. Experience with optical components, measurement techniques, and programming for test automation is needed.

Drive key strategic projects for Bertelsmann Investments, supporting executive leadership in shaping and executing growth initiatives. Conduct analyses, prepare presentations, and act as a thought partner on strategic topics.

Java Technical Lead to architect and lead a backend team of two Senior Developers. Expertise in Java 17/21, Spring Boot 3.x, REST/SOAP, and security principles required. Responsibilities include API design, technical quality assurance, and cross-team collaboration.

UX/UI Designer with a focus on B2C UI will design intuitive and engaging interfaces for web and mobile platforms. Responsibilities include designing UI, supporting UX initiatives, building and maintaining the design system, and collaborating with Product Managers. Requires 3+ years of UI/UX design experience and proficiency in design tools.

The Industrial Sales Engineer drives new OEM business and growth for Custom Photonics Solutions across Europe. Responsibilities include market and customer development, lead qualification, and translating customer requirements into tailored solutions. The role requires 5+ years of account management experience, a degree in Physics or a related field, and strong communication and data analysis skills.

Lead a team of data scientists and machine learning engineers, designing and implementing optimization algorithms for the Paid Search ecosystem. Translate data into production-grade products, driving HelloFresh's growth.

Experienced SAP FI/FS Consultant needed for European finance operations. Focus on payments, fixed assets, and SAP S/4HANA finance processes. 2nd/3rd level AMS support with transition to implementation.

Working Student / Master Thesis / Intern will contribute to research on quantum compilation, focusing on improving and optimizing quantum compilation stacks for early fault-tolerant quantum computers. Responsibilities include developing reinforcement learning and machine learning methods for quantum circuit design, implementing quantum error correction codes, and integrating new circuit design methods into existing software. Applicants should have experience in Python programming, quantum computing libraries, and machine learning algorithms.