freelance English-speaking jobs in Mannheim

Lead go-to-market sales strategy and build a high-performing sales organization for an AI voice platform. Requires 7+ years in sales leadership, expertise in scaling teams, and fluency in English and German.

Lead and develop the engineering team, focusing on people growth, process improvement, and AI adoption. This hands-on role requires a strong engineering background and experience in a startup environment.

Working Student in Marketing for the RTD Business Development team. Analyze market trends, track performance, and support new innovation evaluations. Requires current enrollment in a relevant degree and fluency in German and English.

Sales Manager for Power Conversion Systems to grow market share in German energy storage and PV utility sectors. Own the sales cycle, building relationships with EPC/developers, and ensuring compliance with grid codes. Requires technical sales experience in PCS or power electronics.

Process Improvement Manager for SAP S/4 HANA transition. Apply Lean principles, drive continuous improvement in workflows, and support digital interface implementation. Requires relevant studies or experience in process/project management.

Seeking a Key Account Manager for Food Services, Franchise Snacks & Culinary. This role supports PepsiCo's extensive portfolio of food and beverage brands across Northern Europe.

Technical Support / QA Specialist to investigate technical issues, support game launches, and ensure stable game performance. Responsibilities include troubleshooting slot game issues, analyzing logs, and verifying functionality. Requires 2+ years in QA or Technical Support.

Serve as central project manager for M&A mandates, overseeing financial modeling and client interface. Requires 5-7 years of relevant experience, advanced financial skills, and business fluency in German.

Dual Student in Business Administration – Industrial Management (B.A.) starting October 2027. The role is with BBC Cellpack, a company with a history of innovation in industrial goods and materials.

Senior LLM Algorithm Developer to rethink LLM computation for photonic systems. Design and optimize LLM algorithms, model performance, and collaborate on hardware-software co-design. Requires deep LLM knowledge and proficiency in PyTorch/JAX.

Experienced Salesforce/HubSpot Administrator needed to support a customer project focused on operational excellence across CRM and revenue systems. Duties include auditing, resolving data inconsistencies, and documenting system changes. Preferred experience with Dynamics 365 and revenue systems.

Student Assistant role in Translational Oncology/Immunotherapy/Genetic Engineering. Focus includes cell culture, viral vector production, molecular cloning, and assisting with large-scale CRISPR screens. Requires enrollment in a bachelor's or master's program.

Working Student in AI Automation helps turn automation opportunities into working solutions. You will develop MVPs, own use cases from concept to operation, and explore new AI capabilities. Study relevant fields and have interest in AI and process automation.

Execute sales and distribution strategies for Amazon MGM Studios' theatrical releases in Germany. Manage exhibitor accounts, negotiate terms, and coordinate operations to maximize box office performance. Fluency in German and English is required.

Senior Accountant Consolidation & Reporting role at One Mobility Group. This position supports a global team within a company specializing in electrified mobility solutions, requiring expertise in financial consolidation and reporting.

Manage 3PL operations and inventory coordination across Germany and the DACH region. Ensure accurate goods receipt processing, resolve inventory discrepancies, and manage operational exceptions with external logistics partners.

Seeking 2 Research Support positions to assist with plant development and diversity lab work. Essential skills include molecular biology, plant handling, and genetics. Experience with Arabidopsis is a strong asset.

Senior Affiliate Manager to join a scaling consumer AI company. Own and develop affiliate relationships, recruit new partners, and drive profitable acquisition through data-led optimization. Requires 5+ years in affiliate marketing and fluency in English.

Own day-to-day marketing operations, managing content across social, website, and portfolio. Build and improve systems, applying AI tools thoughtfully. Requires strong copywriting, English, and a proactive, self-sufficient style.

Principal Product Specialist for German Accounting requires deep expertise in German tax and accounting rules. You will translate complex tax advisor workflows into product requirements, ensuring accounting features align with German practices.