freelance English-speaking jobs in Bielefeld

The Campus Director is responsible for the operation of one or more Worldwide Campus locations, including administrative, budget/financial, human resource functions, and student advisement. The CD participates in recruitment, public relations, and outreach efforts. The CD reports to the Executive Director of Campus Operations and may supervise Associate Campus Directors and/or Assistant Campus Directors.

Implement features for the "Unified Remediation Engine" including backend services in Java and Python. Develop agent logic for self-healing workflows, write tests, and collaborate with senior engineers.

Leads the design and implementation of a centralized Digital Assurance Hub, orchestrating data streams into a single source of truth. Architects data integrations and ETL strategy, ensuring data integrity and security. Oversees verification of key controls and leads the quarterly verification program, translating findings into strategic risk insights.

As a Medior iOS Engineer, you will design, develop, and release high-quality iOS features. You will take end-to-end ownership of projects from concept to App Store launch, ensuring the app is fast, intuitive, and delightful to use. You will collaborate with cross-functional teams to deliver impactful features and ensure the app runs smoothly, performs reliably, and scales effortlessly.

Postdoctoral researcher to develop algorithms for multi-omics data integration in neuroepigenetics. Responsibilities include bioinformatics analysis, research project design, IT support, and infrastructure maintenance. Requires strong programming skills, system administration experience, and expertise in single-cell and bulk epigenomic data analysis.

Leads and manages departmental resources to implement, develop, and maintain production processes. Drives continuous improvement through Lean Manufacturing tools and process enhancements. Ensures compliance with KPIs, manages projects, and optimizes plant layout.

Marketing Intern to support online presence growth and gain digital marketing experience. Responsibilities include website optimization, content creation, analytics tracking, and social media management. Must be currently enrolled in a related program and have an AI-first mindset.

The Sánchez Lab at the European Institute for Molecular Imaging (EIMI) seeks a Postdoc/PhD student to oversee modeling work on the future potential of vector-borne diseases in Germany. Collaborate with national and international partners, contribute to a new research field, and publish in peer-reviewed journals.

Owns the Amazon Spain marketplace, managing listing quality, SEO, sales, and conversions. Monitors KPIs, analyzes market performance, and optimizes listings using tools like Helium 10 and Keepa. Collaborates cross-functionally to ensure product availability and customer satisfaction.

MBA Working Student – Junior Finance Analyst supports the Co-Location team's strategic and financial initiatives. Responsibilities include leading a strategic project, conducting market research, developing business cases, and assisting with financial modeling and project finance assessments.

As a Clinical Lead for Ello, you will shape the psychological approach of this AI mental wellness companion, ensuring safe, effective, and evidence-based support. You will define how Ello responds psychologically, collaborate with cross-functional teams, and ensure the quality and effectiveness of its conversational approach. You will also drive Ello's evaluation strategy, build the evidence base, and own psychological safety.

Project Manager will lead diverse project teams, manage business relationships, and drive IT projects end-to-end using Agile and classic methodologies.

Lead strategy and roadmap for Amazon Music's personalization and AI foundations team in Berlin. Drive product development for infrastructure, scalability, and quality assessment approaches. Collaborate with scientists, engineers, and cross-functional partners to improve customer experiences.

Own the rollout of 6 AI-powered inspection hubs across Germany, starting in NRW. Responsibilities include scouting locations, negotiating leases, converting spaces into tech-enabled hubs, and integrating acquired centers into the operating platform. Must be fluent in German (C2), hold a valid Class B driving license, and have a Bachelor's/Master's degree from a top university. Experience in fast-paced environments is a plus.

Working Student Data (m/w/d) will implement data pipelines in PySpark on Databricks, maintain and improve existing pipelines, and refine raw data into structured datasets. The role also involves supporting machine learning projects and contributing to data operations.

Mechanical & Piping (M&P) Inspector required for LNG terminal project. Responsibilities include technical oversight, contractor management, static equipment & piping oversight, construction monitoring, pre-commissioning & commissioning support, and reporting. Requires a degree in Mechanical Engineering, minimum 10 years of experience in the Oil & Gas sector, and knowledge of ASME B31.3, API standards, PED 2014/68/EU, and relevant EU/German regulations. Fluent English required.

As a Cyber Threat Intelligence Analyst, you will identify, analyze, and track threat actor tactics, techniques, and procedures. You will investigate complex threat data to provide situational awareness, quantify trends, and support investigations. You will also conduct technical analysis to identify potential intrusions and produce intelligence reports for various stakeholders.

The Regional Safety Engineer will own the Health and Safety function for their assigned area, improving data center safety, advancing safety culture, and protecting employees. Responsibilities include implementing safety standards, conducting audits, ensuring compliance with global programs, developing safety plans, and collaborating with internal and external partners.

Design, develop, and operate scalable software components across backend APIs and patient-facing applications. Collaborate with product, design, and medical teams to deliver new features and improve the platform. Drive technical excellence in architecture, code quality, and security. Mentor other developers and contribute to a platform powering regulated digital health products.

Software Development Engineer to lead software development of robotic products for Amazon Logistics Delivery Stations. Responsibilities include strategizing, defining, and managing software development for robotics technologies, partnering with cross-functional teams to improve the customer experience. Requires expertise in industrial automation systems, communication protocols, and software development methodologies.