freelance English-speaking jobs in Wuppertal

Experienced Salesforce Technical Expert needed for CRM implementation project. Lead solution design and architecture, ensuring scalability and maintainability across the PID Group. Develop complex features, coordinate implementation, and act as technical counterpart to business stakeholders.

Social Media Manager & Copywriter needed to manage and publish content across all social media platforms. Write engaging copy, plan and distribute newsletters, and coordinate blog articles. Must have native-like German, 1+ year of experience in social media management, content marketing, or copywriting, and excellent written German.

Supports the confidentiality, integrity, and availability of Yogi's information systems across European operations. Provides hands-on security operations, regulatory compliance support, and incident response. Collaborates with global security leadership, regional IT teams, and EU business stakeholders.

Early-career scientist with a strong background in immunology, neuroimmunology, and systems biology sought to lead an innovative research program investigating the immune system's influence on brain health and protection from degenerative diseases.

Sungrow Power EMEA seeks a Werkstudent (Intern) to join the ESS Technical Team in Munich. The intern will support technical design and ESS customized solution proposals, focusing on Battery Energy Storage Systems (BESS). Responsibilities include assisting with technical advisory tasks, collaborating with engineering disciplines, and reviewing project designs. The ideal candidate is pursuing a Bachelor's degree in Engineering, with an interest in BESS technology and experience providing technical advice.

Own and grow the embedded Rust firmware for a novel software-defined Battery Management System (BMS). Set engineering practices for trustworthiness, debug on ARM and RISC-V targets, and work with the founder on architecture and verification. Must have at least 1 year of no_std production Rust experience and a quality mindset with hands-on software testing experience.

Manages daily operations, maintenance, and emergency response for electrical and HVAC systems in a large-scale data center. Ensures system availability and compliance with safety regulations. Optimizes system performance and collaborates with teams on infrastructure support.

PhD student to study Fe-bearing materials at in-situ conditions relevant for planet formation and evolution. Participate in R&D of X-ray scattering experiments and dynamic compression experiments.

The Dealer Network Administration Specialist supports the DND department with data quality, document management, reporting, and dealer file maintenance. Responsibilities include maintaining the dealer funnel, tracking dealer documents, and supporting the preparation of approval documents and reports.

German Customer Service Representative needed for remote work with relocation support to Greece. Help users stay safe online, review content, and communicate with users. Fluency in German (C1) and good English skills required.

Shape the global quality strategy for the Thermal Solutions Business Unit. Establish a unified quality framework across international manufacturing sites and drive the digital transformation of quality management processes.

Lead and manage a 24/7 automated logistics facility, overseeing operations, people, and customer relationships. Drive efficiency, optimize processes, and ensure consistent service quality.

Experienced Cutover Manager needed for a 5-month Workday implementation project. Plan, coordinate, and execute the transition from SAP HCM to Workday, ensuring a seamless Go-Live. Strong project experience in SAP HCM and Workday projects required. Knowledge of Workday HR Core, Compensation, and Service Management is essential.

Experienced Project Director to lead CSA and Fit-Out delivery of a landmark data center project in Frankfurt. Oversee civil works, structural concrete & steel, building envelope, and high-specification fit-out.

Leads and develops the site maintenance and reliability team, ensuring safe and efficient operation of production assets. Develops and executes maintenance strategies, drives reliability improvements, and manages the maintenance budget.

E.ON Energy Infrastructure Solutions GmbH seeks a Segment Developer Data Centre to join their team in Berlin, Essen, or München.

Research Assistant will develop data management systems for large, multidimensional datasets in the aerospace sector. Responsibilities include researching data management methods, performance-oriented programming, database implementations, and software development in complex computer architectures.

Expert in IFRS accounting and reporting, with a focus on IAS 12/income taxes, sought for Home Comfort Finance team. Responsibilities include ensuring high-quality, compliant, and timely group reporting, monitoring IFRS changes, and collaborating with internal and external stakeholders. Requires several years of relevant experience, strong knowledge of IFRS standards, and proficiency in SAP FI and MS Office.

Program Manager for Executive Education will design, deliver, and scale impactful learning experiences for professionals. This role involves program leadership, client engagement, and strategic partnership. Responsibilities include program design and delivery, client advising, and operational excellence.

Tieto Tech Consulting seeks an experienced SAP Solution Architect to drive innovation across customer SAP landscapes.