freelance English-speaking jobs in Mannheim

Audio Engineering Working Student will plan, execute, and post-process speech recordings for AI training. Responsibilities include data labeling, database management, and maintaining recording equipment. Requires current enrollment in an audio engineering program and experience with audio software and signal processing.

Lead strategic logistics network planning across Europe, designing and optimizing warehouse networks, transportation, and fulfillment infrastructure.

Develop new product concepts and provide technical support to the sales team. Collaborate with R&D and Sales to optimize product range and realize innovative solutions.

Are you an English-speaking early years professional looking for a meaningful role in an international educational environment? At Phorms Campus Munich, we are looking for a qualified and motivated Early Years Educator / Nursery Teacher to join our bilingual kindergarten.

Senior Marketing & Communications Manager will plan and execute marketing activities to strengthen the Tieto brand in Germany, support business development, and drive lead generation. Responsibilities include PR, online and content marketing, event support, website management, performance management, social media management, and account-based marketing.

As Development Coordinator, you'll support project and construction efforts across Europe, coordinating purchase orders, tracking budgets, and ensuring timely deliveries. You'll also manage supplier data, coordinate communication, and assist the Chief Development Officer with reporting and project coordination.

HR & CSR Intern supporting HR management, onboarding, training, and CSR initiatives. Process support for HR projects and employer branding. Must be a matriculated student in Psychology or Human Resources Management with strong English skills.

Internship in Global Communications / Operational Excellence & Digital for enrolled students (m/f/d) in communication sciences, media, digital business, or a comparable field.

Design electrical harnesses, VE units, and integrate electrical elements into system designs. Collaborate with engineering teams to ensure design feasibility and manufacturability. Document design processes and specifications.

Provides customer service, processes sales orders, tracks order status, and investigates issues. Collaborates with internal teams to ensure timely and accurate order fulfillment. Requires proficiency in English and German, SAP B1 knowledge, and 2+ years of customer success experience.

Supports the development and implementation of the Group's financial and treasury strategy. Manages central loans and credit lines, coordinates financing for subsidiaries, and manages foreign exchange risk.

Manufactures prototypes and samples, prepares process documents, and assists Process Engineers in developing production processes.

Global Supply Chain Manager needed to develop and implement supply chain strategies, manage logistics, production planning, and inventory management. Requires 8+ years of experience in a full E2E Supply Chain role within the Biotech or Pharmaceutical industry.

The Operations Environmental, Health & Safety (EHS) Manager will implement and monitor health and safety processes in Frankfurt, Germany data centers. Responsibilities include risk assessment, safety audits, incident investigations, and training. The role requires expertise in areas such as electrical safety, hazardous energy control, and construction-related risks.

Senior Associate to support transactions from review to execution, including financial analysis, valuation, and due diligence. Prepare investment materials and work with portfolio companies on growth initiatives and value creation. Requires several years of experience in private equity, investment banking, or related fields.

Warehouse Manager / Warehouse Lead Germany (m/f/d) needed for a hands-on role in Pulheim. The successful candidate will coordinate the warehouse team, manage goods receipt, storage, picking, packing, dispatch, and stock checks. Experience in warehouse operations, team leadership, and systems like PDA scanners and UPS WorldShip is required. Fluency in English and German is essential.

Student will support the team building forecasting models, maintain data solutions, and analyze data issues. Requires programming skills (Python, SQL), basic knowledge of Azure, and understanding of energy markets.

Senior Fullstack Engineer to build and extend an AI platform that automates security reviews. Responsibilities include backend development, data flow design, consultant-facing UI development, and platform reliability. Must have 5+ years of fullstack experience with production ownership of complex software, Python and FastAPI, PostgreSQL, async programming, React and TypeScript, and production deployment experience.

Experienced Test Engineer needed to design and execute tests for cutting-edge autonomy products. Analyze system specifications to derive test cases, manage test scenario spaces, and allocate tests across various environments. Evaluate test runs, provide verdicts, and offer actionable feedback to development teams. Requires a solid understanding of autonomous driving, testing logic, and machine learning. Must have a driver's license (Class B minimum).

The Martian Mindset Cluster of Excellence invites applications for two independent postdoctoral research positions. Successful candidates will lead independent research projects with full scientific and budgetary autonomy. Applicants must have a PhD (or proof of imminent completion) in any field relevant to The Martian Mindset and a convincing 3-year research program.