freelance English-speaking jobs in Bielefeld

Install and maintain commercial plumbing and heating systems. Diagnose and repair faults, including leaks and blockages. Service plant equipment and conduct routine inspections. Requires 5+ years post-mechanical trade qualification and industrial/commercial experience.

Sales Executive for Electromagnetic Compatibility (EMC) and Wireless. UL Solutions provides testing, inspection, and certification services to support customer product innovation and business growth globally.

Senior Software Developer role involves joining a client team to build features from conception through deployment. Responsibilities include owning architecture, communicating with business teams, and ensuring team output quality. Requires 6-8 years of experience and native German.

Senior Software Engineer joins a cross-functional team to extend and maintain the Affiliate Marketing platform. Responsibilities include designing reliable services using Java/Spring, Kafka, and AWS, while owning application lifecycles.

Warehouse Worker role in an Amazon Fulfillment Center. Duties include receiving, packing, loading, using scanners, and operating PIT equipment. Must be able to lift up to 15kg and adhere to safety standards.

Senior Graphics Machine Learning Engineer to develop and optimize ML models for graphics and visual computing. Requires expertise in ML, neural networks, real-time graphics, and GPU-accelerated workloads.

Senior CRM & Marketing Automation Expert to develop global CRM capabilities. Own HubSpot, optimize workflows, and build data-driven processes across Marketing and Sales. Requires 5+ years in CRM/Marketing Ops and fluency in English and German.

Lead product strategy and lifecycle for payments solutions for Financial Institutions and FinTech clients. Drive product vision, manage cross-functional alignment, and ensure data-driven, customer-centric delivery.

Develop and execute global category strategies for professional services, including IT, consulting, and engineering. Lead strategic sourcing, negotiations, and supplier management to optimize service requirements and performance.

Manage end-to-end demand planning, procurement, and inventory for global spare parts. Ensure material availability by managing suppliers, resolving shortages, and optimizing inventory health. Requires supply chain experience and ERP proficiency.

Experienced Demi Chef de Rang with a passion for food and service seeks to ensure smooth operations and exceptional guest experiences.

Manage IT projects for software implementation in the health insurance industry. Requires 3-5 years of IT project management experience, certification (PMP/PRINCE2), and German/English skills.

Lead Operations Engineer ensures technical reliability and safety of the Pilot Center. Responsibilities include driving equipment optimization, maintenance, and automation, while acting as the Responsible Electrical Engineer (VEFK).

Senior/Advanced Clinical Study Manager to independently lead clinical studies and medical device investigations from concept to completion. Requires 5+ years in clinical research, knowledge of EU MDR, and fluency in German and English.

Lead German Loan Operations for Kroll Agency and Trustee Services, overseeing Facility, Paying, and Escrow Agent services. Ensure accurate, timely delivery within a strong risk framework. Requires expertise in syndicated loan administration and LMA/LSTA documentation.

Design and develop modern WebUI applications using Angular and TypeScript, while building and maintaining backend services in Rust. Integrate RESTful APIs and WebSockets for real-time features.

Senior Controller for IT Controlling Operations supports financial steering of IT services. Responsibilities include developing scalable operating models, managing cost planning, and improving processes using SAP CO, EDWH, and Power BI.

Strategic Account Executive to build business with global Cloud Service Providers. Own a portfolio, lead joint business planning, and embed HPE CloudOps into provider service catalogs. Requires 10+ years in enterprise sales.

Experienced Technical Drafter/Designer needed for plant engineering projects in media supply. Responsibilities include creating 2D/3D piping plans from P&IDs and preparing revision plans. Requires training in technical drafting or system planning, AutoCAD proficiency, and excellent German skills.

Lead a new CPO Packaging Team, driving the transition from concept to high-volume production. Own technical management of global OSAT partners and develop advanced co-packaged photonic/electronic assemblies. Bridge the gap between chip design and manufacturing, ensuring Design for Manufacturability (DFM) and reliability qualification. Champion continuous engineering quality through root-cause analysis and process improvement.