freelance English-speaking jobs in Aachen

The University of Duisburg-Essen and the Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V. are offering 11 PhD positions in various departments and institutes. Successful candidates will conduct high-level interdisciplinary experimental research projects in the RTG 2989 «Targeting cellular interfaces in Reperfused Acute Myocardial Infarction (TCI repAMI)».

Senior Key Account Manager needed for a growing IT consulting company specializing in SAP technology. Manage key accounts, develop sales strategies, and build relationships with clients. Requires strong SAP knowledge, sales experience, and excellent communication skills.

Develop backend systems for an intralogistics product using Java and Spring Boot. Design APIs for web and app interfaces. Contribute to Minimum Viable Products (MVPs) in a fast-paced environment.

Commercial Training & Education Manager for Advanced Wound Management will train and certify sales teams on products, procedures, and selling skills. Requires 8+ years of sales experience in the medical device industry or 5+ years in learning/training. Must have expertise in Smith+Nephew products, clinical pathways, and competitive landscape. Strong facilitation, presentation, and commercial selling skills are needed. Fluent in English and German. Up to 50% travel required.

Develop new features for a mobile comparison platform using React, TypeScript, and Remix. Improve existing frontend components and collaborate with backend, UX/UI, and product management in agile teams.

Coordinate technical development projects for a skilled engineering team at Airbus Defence and Space. Ensure project tasks, schedule, time, and quality are managed effectively. Prepare technical and formal documentation, conduct project reviews, and manage system requirements.

The Universities of Stuttgart and Freiburg offer 10 Research Assistant (Doctoral Researcher) positions within the DFG-funded RTG BioBuild. The program focuses on bio-inspired building envelopes that respond to weather and light conditions. Doctoral researchers will address topics in bioinspiration, materials research, process technology, and architecture.

Postdoctoral position in the project "Making Political Decisions" at the Cluster of Excellence "The Politics of Inequality". The position starts September 1, 2026, for four years. The successful applicant will contribute to research activities using experimental designs to study political decision-making.

The W2-Professorship (m/f/x) Change Management in Fashion Business at TEXOVERSUM School of Textiles focuses on teaching change processes in the fashion and textile industry. The successful candidate will develop degree programs, teach in English, conduct research, and collaborate with industry partners.

Manages projects, defines business requirements, and negotiates with stakeholders. Leads project teams, manages budgets, and ensures project timelines are met. Improves applications and processes, supervises invoice and payment processes, and participates in user acceptance testing. Creates user manuals, provides user training, and manages new product launches. Analyzes data, maintains data quality, and supports the Professional Education Program.

Develop a Model Predictive Control (MPC)-based Energy Management System (EMS) for a modular office building. The thesis will focus on optimizing pre-heating and pre-cooling strategies, considering electricity prices, PV generation, and thermal storage and cooling equipment operation.

Develop technical solutions for wind and electromobility products. Work with customers, create technical lists and drawings, and support sales. Requires a degree in electrical engineering or a related field, experience in the wind industry, and programming experience with IEC61131.

Develop and implement the webshop product strategy (Adobe Commerce) in close alignment with eCommerce and Sales Management. Act as the central interface between stakeholders and the international development setup. Responsible for the technical and functional scaling of the webshop across 22 markets. Manage the backlog, prioritize based on value, and translate epics and features into user stories. Coordinate deliveries with internal and external development teams and ensure high implementation quality. Provide management-level reporting on status, risks, forecasts, and dependencies.

The Data Center Engineering Operations Technician is responsible for the delivery of best practice systems and problem resolution for data center electrical and mechanical infrastructure. The role requires a self-managed individual who proactively seeks solutions to complex technical problems. Responsibilities include setting and maintaining safety standards, driving continuous improvement efforts, and collaborating with stakeholders to deliver operational excellence. The technician will also be responsible for preventive maintenance, facility monitoring, and responding to potential customer-impacting events.

This MSc Thesis Project focuses on improving sampling techniques for product qualification using binary data. The role involves evaluating existing qualification protocols, analyzing historical data, performing simulations, and exploring applications of machine learning.

The CRC 1756 "Chemical and Biological Principles of Cellular Trigger Responses" seeks 20 doctoral researchers to investigate molecular mechanisms of cellular responses to chemical and physical triggers.

Develop and execute sales strategies for laboratory services, diagnostics, imaging devices, and software solutions in the DACH region. Lead and manage the full sales lifecycle, achieve sales targets, and drive revenue growth.

Postdoctoral Researcher (gn*) in the Sánchez Lab at the European Institute for Molecular Imaging. Focus on plexin receptors, combining single-molecule localization methods and cell biology to decipher their stoichiometry, dynamics, and role in various biological processes. PhD in life sciences required, experience in cell and molecular biology, and microscopy methods.

Designs intuitive user experiences for B2B software applications and digital products. Creates user flows, wireframes, prototypes, and high-fidelity designs. Collaborates with CRM teams to improve UX across Salesforce-powered journeys.

PhD position in Computational Biology & Single-Cell Genomics focusing on brain development. Analyze single-cell RNA-seq and scATAC-seq data, process spatial transcriptomics data, and develop bioinformatic pipelines.