javascript English-speaking jobs in Bielefeld

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.

Product Marketer will own end-to-end go-to-market strategy for new and existing customers. Responsibilities include product launches, sales enablement materials, and webinar program management.

Senior Platform Engineer will empower Zenjob teams to leverage AI. Responsibilities include understanding team challenges, building AI tools and integrations, and providing enablement through workshops and documentation. Requires senior-level engineering experience, production experience with LLMs, strong communication skills, and a passion for teaching.

Aerodynamics Laboratory Technician supports wind tunnel test activities, including model integration, instrumentation, and maintenance. Requires experience with measurement technology and model handling. Fluency in German and English is required.

Lead a large international procurement and supply chain organization across EMEA, AMER, and APAC. Responsibilities include global supply chain management, procurement, logistics, operational excellence, and supply chain digitalization.

The German Cancer Research Center seeks a Scientific Solution Architect for the MEDAL project. This role involves designing and building the technical foundations of a platform for medical imaging AI benchmarking. Responsibilities include defining secure workflows for data submission, designing the benchmarking platform, and translating scientific and ethical requirements into technical concepts.

Lead and manage a core accounting team, overseeing day-to-day bookkeeping and ensuring smooth finance operations. Prepare financial statements (HGB & IFRS) and internal reports, analyze material and logistics costs, and serve as a finance business partner to other departments.

DataForce by TransPerfect seeks PhD-level Physics experts to design complex scientific problems for AI training. You will create "stumper" prompts, test them against LLMs, document their failures, and provide expert solutions. Requires deep subject-matter expertise, rigorous reasoning, and proficiency with digital documentation tools.

As a Senior Financial Accountant, you will partner with business leaders and cross-functional teams to ensure financial accuracy and provide strategic insights. You will report to the Finance Manager and collaborate with headquarters in Israel on statutory and tax preparations, periodic reporting, and ad-hoc projects.

Service Technician (m/f/d) for wind turbines in the East Holstein region. Responsibilities include on-site servicing and maintenance of wind turbines, repairing faults, analyzing error messages, and documenting work. Requires a technical qualification, experience with Microsoft and iOS, and a valid Class B driver's license.

Office Manager (15 hrs/week) needed for day-to-day operations in Berlin. Manage office administration, infrastructure, IT coordination, purchasing, and team events. Requires 3+ years experience in office management, strong German and English skills, and a structured, hands-on approach.

PhD researcher to develop analytical methods for persistent and mobile chemicals in industrial wastewater. Will analyze PM compounds, including transformation products, and collaborate with project partners. Requires a Master's degree in Chemistry, Environmental Sciences, or related field and strong analytical chemistry background.

Develop, maintain, and improve Power BI dashboards and reporting solutions. Track, analyze, and communicate Route-to-Market KPIs. Provide analytical support for Route-to-Market optimization.

Application Test Engineer for TestLab develops, debugs, and optimizes V93000 based application tests. Manages customer device transfer to TestLab and facilitates the implementation of V93000 test solutions. Analyzes test procedures, processes, and requirements to improve test coverage and efficiency.

Full-Stack Developer (Frontend Focus) will develop new features across the technology stack, with a focus on modern Next.js frontends. Responsibilities include building responsive UI components, optimizing performance, integrating backend services, and designing application architecture. Requires several years of frontend development experience with React/Next.js, solid knowledge of PHP and/or Go, and fluency in German and English.

Senior Legal Counsel provides strategic legal support for international commercial and corporate matters. Responsibilities include drafting, reviewing, and negotiating agreements, advising on legal matters, supporting projects, and managing legal risk. Requires a German Lawyer qualification or international equivalent with significant post-qualified experience in commercial law and international business transactions.

As an intern in UX/UI Design, you will support the design and development of intuitive user interfaces for connected eBike products. You will create UX flows, wireframes, high-fidelity UI designs, and interactive prototypes using tools like Figma and ProtoPie.

The Material Expediter ensures smooth and prioritized material flow within the plant, coordinating with various internal functions to prevent line stoppages and maintain stable inventory levels. This role involves prioritizing inbound materials, managing material shortages, coordinating outbound finished goods, and supporting continuous improvement of internal material flow.

Senior Labour Relations Specialist needed for a one-year maternity coverage contract. Shape and maintain relationships with German Works Councils, draft and negotiate works agreements, and provide expert guidance on labour law and co-determination. Minimum 5 years of experience in labour relations with a focus on German co-determination required.

Customs Expert ensures customs and tariff compliance for goods movements and MSAS plants in Europe. Provides customs and foreign trade support, implements customs processes, and acts as the main contact for customs authorities.