freelance English-speaking jobs in Bielefeld

Lead high-impact supply chain consulting engagements from problem structuring to implementation planning. Drive transformations in large-scale, cost-critical value chains, focusing on planning, S&OP, logistics, inventory, and network optimization.

Business Controller IMS (SimCorp/ISS Stoxx) supports senior management by providing financial information and controlling tasks. Responsibilities include month-end closing activities, financial reporting, planning and forecasting, and budget performance reviews.

Outbound Key Account Executive will identify and engage with small business prospects in Switzerland through calls, emails, and social media. Build relationships, deliver product pitches, and manage the full sales cycle. Requires 1-2 years of outbound sales experience and a drive to learn.

Support Finoa's marketing team in growing inbound demand by executing SEO initiatives, improving discoverability across search engines and AI tools, managing the content calendar, and contributing to content strategy. Assist with design and campaign assets, leveraging AI and automation to accelerate content production and strategy. Track content performance and analyze data to inform future initiatives.

The Group Tax Manager oversees and coordinates all German tax affairs for the organization. This role ensures compliance, supports the accounting team with filings, and provides tax advice to the German market team. The Group Tax Manager also manages the global tax consolidation process and collaborates with various internal teams.

As a Supplier Quality Manager, you will ensure global suppliers meet Siemens Energy's quality standards. You will collaborate with suppliers, engineering, procurement, and project teams to resolve quality issues, assess risks, and drive continuous improvement.

Working student to design core features for the Heartbeat mobile app, leveraging AI to enhance the user experience.

The European Institute of Policy Research and Human Rights seeks Senior Research Fellows for a program commencing May 11, 2026. Candidates must have completed a Master's or Doctoral program and will develop a research paper in an approved area. Fellows will receive mentorship and guidance, and their research will be published with a DOI.

Assess customer systems and processes against BSI requirements. Prepare assessment reports and deliver findings to clients. Recommend certificate actions and uphold BSI's reputation through professional client interaction.

As a Web Application Service Engineer, you will provide 2nd and 3rd-level support to clients, analyze application requests, and manage incident resolution. You will collaborate with internal teams and customers to ensure seamless system operation.

Data Platform Engineer will improve and extend the analytics and AI infrastructure built around Databricks. Responsibilities include driving the data platform, maintaining the stack with security measures, and building tools for efficient data management.

Workshop Technician will perform pre-delivery inspections, repairs, and modifications on industrial trucks. Requires a completed technical vocational training and sound knowledge of electrical systems.

Working Student to support day-to-day office operations at TYTAN Technologies. Tasks include managing meeting rooms, office supplies, and facilities. Must be enrolled in a university program in Business Administration, Management, or Public Administration and have strong organizational skills.

Service Support Engineer will execute complex commissioning work, analyze malfunctions, and develop solutions. Requires several years of relevant experience, service experience with automated systems, and fluency in Japanese and English.

Build and lead CGM's global performance and product marketing function as a scalable, ROI-driven growth engine. Own demand generation, pipeline creation, go-to-market excellence, and measurable marketing impact across all markets. Establish and operationalize the model in Germany, shaping team structure, decision-making cadence, and execution standards.

RTS Wind AG seeks an Offshore Planner to coordinate assignments for offshore service technicians. Responsibilities include developing and optimizing schedules, creating work orders, and coordinating resources. A Bachelor's degree in a relevant field or technical training with experience in operations planning is required.

Manages European scaling initiatives for a team of 1000+ employees, focusing on recruitment, onboarding, training, and retention for blue collar workers. Creates and maintains EU-level reporting on KPIs related to these areas. Collaborates with Production, People, and external partners to develop and execute successful programs.

As a Senior Client Relations manager, you will define and refine account management processes for enterprise partners. You will lead onboarding, act as the primary point of contact for clients, and identify growth opportunities. You will analyze data, provide recommendations, and bridge the gap between client needs and technical teams.

Provide expert guidance on transaction tax engagements across Germany, Europe, and globally. Supervise and coordinate complex cross-border transaction workstreams, develop tax-efficient planning, and cultivate strong client relationships. Guide and support junior team members, oversee engagements and budgets, and support business development activities.

Advantest seeks an Engineering Program Manager to drive the execution and delivery of complex technical product initiatives. The role involves coordinating teams across engineering, product management, supply chain operations, and external partners. Responsibilities include defining project scope, managing resources, tracking progress, and resolving issues.