ruby English-speaking jobs in Düsseldorf

Communardo Products seeks a Chief Revenue Officer to transform a successful business into a high-velocity, solution-led enterprise SaaS organization. Responsibilities include building a GTM machine, pivoting the portfolio to strategic domains, architecting the partner motion, and driving RevOps excellence. The ideal candidate is an ecosystem expert, strategic operator, culture catalyst, and enterprise navigator.

Assists with payroll preparation for 10 countries, managing benefit categories, and resolving employee inquiries. Supports payroll processing, identifies efficiency improvements, and contributes to global payroll projects.

As a Fire Service Technician, you will inspect, service, test, commission, and repair a range of fire safety and lifesaving systems across vessels, offshore installations, and industrial environments. Responsibilities include maintaining portable fire extinguishers, fixed fire suppression systems, and other critical safety equipment. You will also provide expert technical advice and customer support.

The University of Potsdam's Center for IT and Media Management seeks a Project Coordinator to manage AI projects focused on education and administration. Responsibilities include project planning, stakeholder engagement, technical design, and conducting workshops on AI applications. The ideal candidate has a university degree, understanding of AI concepts, and experience in higher education projects.

Process and post general expense invoices, review and account for travel expenses, manage cash register, and handle employee purchase accounts.

Cook / Chef needed for a professional hospitality team in Germany. Prepare high-quality dishes, maintain kitchen hygiene, and ensure efficient kitchen operations.

Scientist will generate antibodies for research and diagnostic applications using in vitro methods. Responsibilities include determining antibody-antigen interactions, performing quality control and characterization assays, and providing technical support. Requires a Ph.D. in a life science discipline and strong background in molecular biology, immunology, and biochemistry.

Design Expert needed for a remote, part-time contract role. Responsibilities include authoring, reviewing, and annotating technical tasks to evaluate AI model performance on design problems. Must have a PhD in Design or related field, or equivalent experience, and fluency in at least two design areas.

The German Cancer Research Center (DKFZ) seeks a Cloud Administrator & Information Security Officer for its Omics IT and Data Management Core Facility. Responsibilities include managing the de.NBI cloud infrastructure, ensuring system health and availability, and acting as the primary Information Security Officer for the de.NBI cloud site. The role requires a degree in a relevant field, 3-5 years of experience in Linux system administration and/or cloud infrastructure, and a solid understanding of IT security concepts.

The European Institute of Policy Research and Human Rights seeks Senior Research Fellows for a program commencing May 11, 2026. Candidates must have completed a Master's or Doctoral program and will develop a research paper in an approved area. Fellows will receive mentorship and guidance, and their research will be published with a DOI.

The Regional Technical Sales Director oversees the Technical Sales function, leading its strategy and performance across categories. This role provides technical leadership and support for regional accounts, distribution partners, and key accounts, ensuring alignment of technical sales activities with customer needs. The Regional Technical Sales Director drives opportunity pipeline growth, ensuring robust opportunity identification, prioritization, and technical validation.

Coordinates warranty execution, acts as the primary customer contact, and manages defects and NCRs. Analyzes field incidents and quality data to drive continuous improvement. Supports warranty projects and retrofits in the DACH region.

GxP-Auditor (m/f/d) required for Quality Assurance Department in Göttingen. Conducts qualification audits at plasma suppliers/service providers in EMEA region, evaluates audit results, and performs risk analyses. Requires excellent Italian, English, and German language skills, 2-3 years of auditing experience preferred, and strong knowledge of GxP/DIN ISO.

Designs, implements, and develops global compensation and benefits programs, including grading, performance management, and executive and board-level remuneration. Manages target setting processes and ensures the effective execution of STI, LTI, and merit rounds. Conducts global benchmarking and market analyses to ensure competitive, market-aligned, and compliant compensation structures. Prepares the annual compensation report and supports the preparation of the Annual General Meeting. Acts as the subject-matter expert for the global compensation and benefits portfolio and collaborates with HR, Finance, and Legal teams as well as external partners.

Project Engineer (m/f/d) will support BMW M GmbH in aligning high-performance drive systems with global legal requirements. Responsibilities include planning, coordinating, and ensuring legally compliant vehicle bodies for type approvals, managing vehicle conversions, and planning and coordinating homologation tests.

As a Document Controller, you will work with project teams to identify customer documentation requirements, participate in meetings, and support the creation and management of documentation for wind turbines. You will have a commercial or technical education and at least 2 years of relevant experience. Fluency in German is required.

Account Manager to grow and manage distribution business for industrial lubricants. Develop and execute sales strategies, collaborate with OEMs, and provide technical support. Requires 10+ years of relevant sales experience, including distributor management, and fluency in English and German.

The German Institute of Human Nutrition seeks a Postdoc to conduct research on metabolic flexibility and its role in the progression from prediabetes to type 2 diabetes. The position involves analyzing data from the EPIC-DZD substudy and the NAKO Health Study using epidemiological methods and statistical software.

Service Support Engineer will execute complex commissioning work, analyze malfunctions, and develop solutions. Requires several years of relevant experience, service experience with automated systems, and fluency in Japanese and English.

Senior Cyber Security Architect needed to own group-wide technical cybersecurity architecture across cloud and on-premise environments. Develop best-practice guidelines, conduct security assessments, and drive the Secure Software Development Lifecycle. Requires several years of experience as a Security Architect or Cloud/Cyber Security Engineer with strong AWS experience and knowledge of security frameworks.