freelance English-speaking jobs in Mannheim

The Hanseatic City of Buxtehude seeks a full-time IT Specialist (m/f/d) System Integration. Responsibilities include user support, network access management, workstation hardware maintenance, and technical support for software and telecommunications systems. The ideal candidate will have a successful IT specialization in system integration or application development and relevant experience.

Develop and enhance CRM architecture, including AI solutions. Configure and customize Salesforce features, integrate third-party systems, and implement workflows. Participate in the full development cycle of CRM solutions.

The Director of Finance will oversee all financial, strategic, and operational areas of the company. Responsibilities include budget and sales planning, treasury and risk management, M&A activities, and development of efficiency programs.

Directs real estate project management encompassing property analysis, distressed acquisitions, construction control, and sales processes. Requires experience in asset management, construction project management, and real estate development.

Drive the development and implementation of the Supply Chain strategy across Logistics, Procurement, Product Management, and Quality Management. Lead strategic transformation projects, especially in Logistics, and cross-functional initiatives. Manage stakeholder engagement, including communication to top management and preparation of decision papers.

The University of Bonn's Center for Development Research seeks a part-time Office Administrator (50%) to provide administrative support for its doctoral program. The role involves managing correspondence, providing program information, offering administrative support to doctoral candidates, handling financial oversight, and assisting with seminars and conferences. Fluency in English and German is required, along with experience in budget monitoring and knowledge of office software.

Senior .NET/Angular Developer will design, build, and maintain scalable web and mobile applications. Responsibilities include developing RESTful APIs, SPAs, microservices, and optimizing back-end processes. Requires 4+ years of experience with Angular (10+), .NET Core, and cloud platforms like Azure.

Shape the future of work as a Senior Product Manager. Define and execute product strategy, leading discovery and delivery of impactful initiatives. Collaborate cross-functionally to build user-centric solutions and leverage data to drive decisions.

Experienced Network Engineer needed to design, implement, and improve network architecture in a hybrid environment. Responsibilities include automation, issue resolution, knowledge sharing, and mentoring. Requires 5+ years of experience, cloud technology understanding, and proficiency with Juniper devices and routing protocols.

Oversee treasury function within a regulated payment service company. Manage cash flow, safeguarding, and process optimization. Support daily banking transactions and liquidity forecasting.

Manufacturing Engineer needed to support the relaunch of an engine manufacturing plan in Kiel, starting January 2026. Responsibilities include defining flow paths, replenishment methods, and point-of-use logistics for the GCM24 program. Experience with PFEP, material flow design, kitting, line-side logistics, and standard work development required.

The German Cancer Research Center seeks a Scientific Data Infrastructure Interoperability Coordinator to join an interdisciplinary team. The role involves driving technical alignment between GHGA and partner infrastructures, developing secure and scalable solutions, and coordinating interactions with technical working groups.

The Molecular Epidemiology of Aging research group seeks a PhD Candidate to investigate multi-omic and multimodal brain imaging signatures of glymphatic function in the context of aging and cerebral small vessel disease. The project will leverage large-scale population-based cohorts and combine (epi)genomics, transcriptomics, metabolomics, lipidomics, and proteomics data with advanced MRI data.

Leads monthly Non-Food shoots, ensuring product readiness, styling, and brand compliance. Manages project timelines, agency/vendor relationships, and stakeholder alignment. Oversees data flows, quality control, and process optimization. Requires several years of relevant experience, a master's degree or equivalent, and fluency in German and English.

As an Assistant Store Manager, you will support the Store Manager in driving sales, profitability, and team performance. You will coach and develop a team, analyze sales trends, manage payroll, and ensure brand standards are met.

Senior Vehicle AI Architect needed to design and implement AI architectures for vehicles. Requires expertise in AI/ML, automotive E/E architecture, and experience with AI training toolchains and open-source frameworks.

Evaluates and qualifies global supplier network for scalability, cost-efficiency, and sustainability. Develops improvement plans with suppliers to achieve growth targets. Analyzes supplier processes and implements measures to enhance performance and reduce risk. Ensures supply chain compliance with regulations and standards.

Manages daily operations for incoming and outgoing payments, including ACH, wire transfers, SEPA, SWIFT, BACS, and instant payments. Ensures timely processing, posting, and support during reconciliation. Monitors fraud indicators and supports risk mitigation strategies. Analyzes payment data and prepares operational and financial performance reports. Oversees item processing, including check deposits, returns, corrections, and clearing operations. Supports system upgrades and implementation of new tools.

As a Key Account Manager, you will drive the commercial success of Neurology products in your territory. You will develop and execute strategic account plans, build relationships with healthcare professionals, and exceed sales targets.

Operate, maintain, and improve data center infrastructure including electrical, HVAC, fire protection, racks, and material handling systems. Perform preventive maintenance, repairs, and minor metal/woodwork tasks. Manage inventory and spare parts, and support continuous improvement initiatives.