freelance English-speaking jobs in Bielefeld

Lead the wellness, spa, and recreation operation of a prestigious Berlin luxury hotel. Manage teams, drive revenue, and ensure exceptional guest experiences.

Experienced Software Engineer to design and build high-performance financial software using C#, .NET, WPF, MVVM, ASP.NET Core, Typescript, Javascript, Angular, REST APIs, SQL Server, Entity Framework Core, Azure, Python, Docker, Git, and CI/CD.

This role provides end-to-end office administration and supports day-to-day HR tasks for local employees. Responsibilities include managing office routines, procurement, and vendor liaison, as well as assisting with recruitment, onboarding, and HR operations. Requires a bachelor's degree, 1-3 years of experience, and fluency in English and German.

The AVI-SPL Onsite Technician provides on-site support for integrated conference rooms and meeting spaces in Hamburg. Responsibilities include installation, maintenance, and troubleshooting of AV systems, as well as customer training and support.

As a Solutions Engineer, you will be the technical customer advocate for Cloudflare, working with customers and internal teams to design scalable solutions. You will need 3-10 years of IT experience, fluency in Czech and English, and a strong understanding of internet performance and security technologies.

The Tax Product Manager defines and executes the product roadmap for tax services delivered to cross border institutional investors. Responsibilities include monitoring tax changes, defining tax servicing standards, executing the tax strategy, and managing client and competitor market research. The role requires expertise in German tax regulations, fluency in German and English, and experience in financial services tax.

Senior Machine Learning Engineer to design, train, and deploy deep learning models for autonomous drones. Collaborate with hardware, testing, production, and customer operations teams.

Senior Director Analyst to lead market research and analysis within the enterprise AI services market. Develop market sizing/forecasting models, deliver client insights, and create thought leadership content. Requires 12+ years of relevant experience, strong analytical and communication skills, and a proven track record in market sizing and forecasting.

Facility Engineer with electrical or building services background needed for data center maintenance. Responsibilities include electrical and mechanical upkeep, contractor management, and incident resolution. Training provided for switching/voltage authorizations.

Experienced General Manager to lead store performance, including sales, staff development, merchandising, and expense control. Must have 3-5 years of retail management experience, strong leadership and communication skills, and a passion for the brand.

Leads the operational and tactical demand planning function, transforming forecasts into inventory, replenishment, and purchasing decisions. Manages inventory levels, monitors stock performance, and mitigates supply chain risks. Collaborates with stakeholders to ensure planning activities align with business objectives.

Manages and develops Almatis' international tax, transfer pricing, tax governance, and compliance activities across multiple jurisdictions. Collaborates with senior management and global stakeholders to maintain a compliant and sustainable tax structure. Oversees global corporate tax compliance, statutory filings, and tax reporting activities. Develops and enhances Almatis' transfer pricing framework in line with OECD guidelines and local regulations.

Support executive management with administrative tasks, scheduling, research, and correspondence in German and English. Coordinate appointments, meetings, and daily tasks for executive management.

Join a small, agile team designing, coding, testing, deploying, and running production systems. Master's degree in Computer Science, Mathematics, or Physics required. Strong coding skills in C/C++, Python, or Java.

Experienced Quality Assurance Manager needed to develop, implement, and maintain quality systems for major engineering and construction projects. Will lead audits, inspections, and quality reviews, ensuring compliance with contractual and industry standards.

Head of Process Engineering needed for a global pharmaceutical manufacturing business in Northern Germany. Provide technical leadership and expertise across manufacturing operations, including fermentation, lyophilisation, aseptic filling, utilities, and packaging. Lead root cause investigations, drive process optimization, and support equipment qualification and validation activities.

Experienced brand manager to lead OTC pharmaceutical brands in the German market. Develop and execute brand strategy, marketing campaigns, and optimize commercial performance. Lead a team of brand managers and collaborate cross-functionally.

Founding Engineer to build and scale a data platform integrating AI into B2B customer workflows. Deep Python expertise and experience with AI integration patterns (RAG, MCP) required. Lead technical architecture, infrastructure, and future team growth.

A London-headquartered institutional private equity firm seeks a Head of Capital Formation / Partner to build and lead its investor relations and fundraising function. This role owns the entire capital formation strategy, from LP targeting and roadshow execution to final close.

Master's thesis analyzing cleanroom- and vacuum-compatible quick-connection systems for gas supply.