freelance English-speaking jobs in Mannheim

Gusti Leder seeks a motivated and adaptable Allrounder (20-40 hours) to support retail, logistics, and administrative operations in Rostock, Germany and Rosówek, Poland. The role involves customer service, sales, order fulfillment, inventory management, and general office support. Fluency in English is required, with German, Polish, Dutch, or Austrian a plus.

Lead a team of Customer Success specialists in the German market, providing world-class service to pet parents. You will coach, develop, and manage the team, ensuring goals and KPIs are met while continuously refining processes and workflows. Proven experience leading customer-facing teams, fluency in German, and a passion for delivering outstanding customer experiences are required.

Biologists (m/f/d) with a proven track record in tumor and carcinoma research are sought to start July 1, 2026. This role focuses on prostate cancer and involves scientific exchange with physicians and patients. After training, responsibilities include achieving sales targets, building business relationships, and developing sales strategies in the Leipzig-Chemnitz-Dresden region.

Riverty's Data Science (Consumer and Risk) team seeks a (Senior) Data Scientist to build risk and fraud machine learning models for online payment products. Responsibilities include participating in the entire modeling process, from data cleaning and feature engineering to model training and evaluation.

Provide remote IT support for the clinical imaging software of several Siemens Healthineers departments to international customers in the radiology department of a hospital. Coordinate and organize activities within the scope of support, with internal and external partners. Configure, maintain, and implement IT interfaces to other systems in a customer environment.

Senior Account Executive to build commercial footprint and lead sales team growth in the German market. Responsibilities include generating leads, presenting solutions, closing deals, and mentoring team members. Requires a Bachelor's or Master's degree, proven sales track record in the German market, and fluency in German and English.

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.

Working student will perform laboratory tasks including bioburden testing, documentation, and sample preparation. Support laboratory organization and communication. Requires ongoing studies in microbiology, biology, biotechnology, or a related field.

Working Student (m/f/x) to support music department tasks across all markets. Responsibilities include coordinating artist gifting, managing delivery information, and liaising with internal teams.

This 12-month training program prepares individuals for a Territory Manager role within Ecolab's Water division. Trainees will receive classroom and virtual learning, on-the-job training, and coaching. Responsibilities include building customer relationships, providing technical guidance on water treatment solutions, and supporting customer operations. Applicants should have a technical/scientific education and be interested in sales or service-related roles.

Support students in a tech bootcamp focused on IT Project Management with AI. Provide guidance on product discovery, user needs, agile methods, and project management tools. Assist with student engagement, progress tracking, and cohort administration.

Drives market success for ServiceNow's Security and Identity solutions, developing and closing complex enterprise software solutions. Focuses on delivering results above plan and supporting customers in their digital transformation journey. Requires 5+ years of proven success in direct field sales, focusing on acquiring new enterprise clients in Security and Identity domains.

Leads Engineering Testing & Laboratory team for Device & Combination Product Development. Plans, coordinates, and executes Engineering Confidence- and Design Verification Testing for Parenteralia / Pharmaceutical Application Systems. Represents ETAG as single point of contact for assigned projects. Drives test method development and validation. Provides general framework and documentation according to GMP and Design Control standards. Supports regulatory submission reports and provides relevant data. Leads Non-conformity Investigations / Issue Resolutions. Collaborates with program leads and interfaces at various Design Control process steps. Demonstrates creative problem-solving skills and champions new technologies.

The Business Systems Consultant supports Supply Chain operations by managing applications across Procurement (SRM), Transportation (TMS), Warehouse (WMS), and SAP Materials Management (MM). The role ensures efficient, integrated, and reliable source-to-pay and inbound/outbound logistics processes.

Office Manager / Receptionist responsible for creating a positive work environment, coordinating office initiatives, and providing support to employees and visitors. Requires 3-5 years of experience in a similar role, excellent communication skills in English and German, and a service-oriented mindset.

As a Change Enablement Lead, you will plan and manage change initiatives to drive the transformation of support, service delivery, and IT operations teams across 19 countries. You will define success criteria, design training programs, and identify resistance to ensure sustainable change adoption.

Aircraft Engineer / Industrial Mechanic (m/f/d) needed for a 24-month temporary position. Responsibilities include assembling, joining, and testing aerospace structural components. Requires vocational training in a related field and experience in manufacturing/production and mechanics.

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.

Lead HR operations and strategy for Germany and international sites, including management, learning & development, recruitment, health management, and safety. Provide line management, coaching, and development for the HR team. Advise and support managers and employees on HR matters. Manage salary structures, bonus schemes, and employee benefits. Develop and implement HR strategies, processes, and projects.

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.