freelance English-speaking jobs in Bielefeld

Senior Associate Health & Safety Manager supports major data center developments in Berlin. This site-based role acts as the local EHS lead across construction phases, ensuring compliance with NTT standards, local legislation, and ISO 45001.

Provide personalized Piano lessons for children, teenagers, and adults. Teach technique, theory, sight-reading, and exam preparation. Strong knowledge of music and excellent communication skills are required.

Junior Data & AI Engineer role at Travelcircus, an online booking platform for event travel experiences. The position involves working with data and AI within the company.

Lead and mentor e-bike mechanics, ensuring high-quality refurbishment and repair. Oversee daily operations, optimize workflows, and maintain safety standards. Requires 5+ years of e-bike mechanics experience and team management background.

Quality Technician performs dimensional, geometric, and visual inspections of cutting tools. Responsibilities include operating measuring equipment, documenting results, and supporting quality investigations. Requires 3+ years of experience and fluency in German and English.

Senior R&D Engineer to drive technological evolution of sensor systems for demanding industrial inspection. Focus on ultrasonic measurement, sensor development, and intelligent data evaluation within an interdisciplinary team.

Service Manager/Customer Success Manager acts as the single point of contact for service matters, managing account health and advising customers. Responsibilities include issue resolution, relationship building, and driving customer success.

Manage high-potential resellers and non-traditional partners for a global IT accessories company. Develop expansion plans, conduct negotiations, and collaborate across internal teams. Requires 5+ years of B2B channel sales experience and fluency in German and English.

Senior Officer Master Data supports the Regional Treasury EMEA team by validating customer and supplier master data. Responsibilities include managing small projects, preparing new business partners, and ensuring team knowledge is current. SAP R/3 FI and strong analytical skills are required.

Senior Systems Engineer for Aesthetic Filler & Combination Products. Contribute to device and combination product development, ensuring robust, patient-centric design and performance across clinical and commercial phases.

Lead a multidisciplinary team to deliver a strategic, large-scale data center project. Responsibilities include managing scope, budget, risk, and stakeholder relations from initiation to handover. Requires a degree in a relevant engineering discipline and extensive project leadership experience.

The Buyer / Operativer Einkäufer*in role supports KLA's Global Operations team within the semiconductor manufacturing ecosystem. This position involves partnering with the worldwide supply base to bring new products to market.

Define and refine the global ER Operating model to mitigate employment risk and protect the employee experience. Lead complex, high-risk investigations and build ER capability across the firm.

Experienced API Integration Expert needed to define governance, create policies, and improve API lifecycle processes. Requires strong project experience in API integration, API-first design, and integration architecture.

Production Employee involved in manufacturing products while adhering to safety and hygiene regulations. Responsibilities include equipment operation, material provision, and maintaining a clean workplace. Requires production experience and good German knowledge.

Lead CBM's CBID Initiative as Director, shaping strategy for Inclusive Community Support, Education, and Livelihood. Requires 10+ years in international development with expertise in disability-inclusive, community-based approaches.

Galenic Development Specialist supports pharmaceutical and cosmetic products across their lifecycle. This role interfaces between Development, Manufacturing, Quality, and Regulatory Affairs to transfer new products to commercial production.

Logistics Associate at an Amazon Fulfillment Center. Duties include loading conveyor belts, transporting deliveries, sorting parcels, and lifting up to 15kg. Proficiency in German, English, or Arabic is required.

Experienced Electrical Supervisor needed to manage site elements of projects, ensuring project deliverables are met. Responsibilities include on-site EHSQ compliance, coordination of plant, labor, and subcontractors, and project scheduling. Requires previous supervisory experience, electrician qualifications, and project management skills.

Site Process Engineer drives process stabilization and continuous improvement for the EU Customer Fulfillment Network. This role deploys EU-wide initiatives, analyzes process performance, and implements improvement action plans.