ruby English-speaking jobs in Düsseldorf

Execute test procedures for development, series, and raw materials. Plan and conduct internal and external tests, evaluate results, and ensure proper documentation. Develop and prepare resin mixtures at laboratory scale. Support production during trial runs and scale-up processes.

The Senior Integrity Manager (Interims Teamlead) will lead the ISCC Integrity Programme, ensuring compliance of certified companies and Certification Bodies through risk-based approaches. This role will safeguard the integrity and credibility of the ISCC system, identify systemic risks, and drive corrective and preventive measures. The Senior Integrity Manager will translate findings into system improvements, collaborate with stakeholders, and represent ISCC at external events.

IT Application Manager for Control Technology will operate, support, and develop control technology applications. Responsibilities include ensuring system availability, planning and implementing changes, designing interfaces, and collaborating on IT security measures.

As Legal Counsel – Energy Sales Contracts, you will draft, review, and negotiate complex energy sales contracts, provide legal guidance throughout the deal lifecycle, and collaborate with cross-functional teams.

We are seeking a Front-End Web Designer to conceptualize and design websites and templates using WordPress, Elementor, HTML, CSS, and JavaScript. You will develop prototypes, implement multimedia elements, and advise clients on project requirements. A completed media design training or comparable qualification and several years of website design and implementation experience are required.

Design and execute international digital campaigns for the MINI brand across Europe. Provide operational consulting and guidance to local markets. Manage agencies to deliver campaign results and collaborate with cross-functional teams.

Coordinate and assist developers in conceptualizing and developing new SAP software programs and applications. Assist in preparing and documenting SAP software requirements and specifications. Recommend, schedule, and perform SAP software improvements and upgrades. Write, translate, and code SAP software programs according to specifications. Run and monitor SAP software performance tests. Conduct code reviews and support the implementation of automated testing procedures. Provide regular status reports on software quality. Assist in the development and maintenance of user manuals and guidelines. Liaise with Global Process Owner, Global ERP Leads, network administrators, systems analysts, and software engineers to resolve problems with SAP software. Manage and/or provide guidance to junior SAP developers and external AMS companies.

As a Sensory Specialist, you will design and execute sensory tests, manage sensory panels, and provide sensory expertise to Quality Control. You will analyze sensory data, contribute to the development of sensory methods, and collaborate with cross-functional teams.

Senior Flight Control / Simulation Test Engineer will design and execute tests for aircraft projects. Responsibilities include developing test strategies, coordinating with stakeholders, analyzing test results, and supporting flight testing. Requires a university degree in aerospace engineering or a related field, 5-10 years of experience in the aviation industry, and familiarity with aviation standards (ARP4754A, DO-178C, DO-331, DO-330). Experience with Speedgoat Real-Time Simulation and Testing, Matlab/Simulink/Stateflow, and flight dynamics is advantageous.

As Head of Credit DACH, you will lead the Credit Department, manage risk management and credit underwriting processes, and collaborate with senior decision-makers and stakeholders. You will review and approve credit applications, balance commercial opportunities with risk appetite, and implement policies and operational workflows.

Experienced Full Stack Engineer needed for large-scale digital projects in the financial services sector. Develop backend services using Java and Spring Boot, and frontend applications with Angular and TypeScript.

Technical Expert for satellite communication technology. Drive the digitalization of signal chains and design IP-based infrastructures. Operate and maintain teleport infrastructure, including power, cooling, and backup systems. Define and document operational processes and review incident, change, and problem records.

HR Admin provides translation support, manages relocation processes, coordinates visa applications, and handles office administration for international employees.

Senior Qualification Engineer ensures consumer product quality, reliability, and performance. Develops and implements quality and validation plans, identifies risks, and leads qualification efforts. Requires 5+ years of experience in product qualification, strong understanding of validation and reliability testing, and fluency in English and German.

The Data Center Engineering Operations Technician ensures the delivery of best practice systems and problem resolution for data center electrical and mechanical infrastructure. This role involves site interventions, troubleshooting, and fixing infrastructure issues. The technician will be responsible for preventive maintenance, facility monitoring, and responding to potential customer-impacting events.

Scientist in our Biology Department will develop, optimize, and validate bioanalytical methods for biologics using techniques such as ELISA, ECLA, or HPLC. Responsibilities include sample analysis, data interpretation, report preparation, and client communication.

Lead the end-to-end promotional engine for a European pet e-commerce company. Develop strategy, team, tooling, and governance, ensuring alignment across markets and functions. Drive integrated net price management and build a Promotions Center of Excellence.

Develop and maintain ABAP and ABAP OO programs, reports, enhancements, and forms in a complex SAP ECC environment. Design and implement interfaces (IDoc, RFC) and migrate to S/4HANA. Ensure compliance with regulations within development projects.

Legal Counsel (m/f/d) will manage all legal matters for a fast-scaling international business. Responsibilities include supporting leadership on contracts, compliance, and data protection, building legal structures, and acting as a business partner. The role requires a qualified lawyer with 1-5 years of experience, strong knowledge of data protection, commercial, and contract law, and excellent German and English skills.

Operate and improve the cyber security posture of ControlExpert's on-prem and cloud environments. Responsibilities include incident response, vulnerability management, endpoint security, and operational security engineering.