ruby English-speaking jobs in Düsseldorf

The Federal Chancellery seeks two IT specialists to manage the central Public Key Infrastructure (PKI) and certificate management within the government network. Responsibilities include secure operation and development of the PKI identity infrastructure, analysis of new requirements, technical management of vendors, and continuous development of lifecycle processes.

Airbus Helicopters seeks motivated Certifying Staff (m/f/d) from the aviation industry. Responsibilities include identifying malfunctions, carrying out inspections, supervising tests, and ensuring operational and safety requirements are met. Applicants must have a completed vocational training in aircraft electric or similar, an EASA Part-66 CAT B2 license, and experience in aviation assembly, inspection, and maintenance.

This individual contributor role ensures the technical competitiveness and successful deployment of residential and C&I energy systems in the European market. Responsibilities include leading market entry strategy, developing partnerships, identifying routes to market, and acting as the technical interface between the European region and global HQ teams.

Healthcare Consultant will complete projects from information gathering to recommendation drafting and presentation. This role involves collaborating with clients in the Pharmaceuticals, Biotech, Medical device, Diagnostics, Vaccines and Animal Health industries.

Business Analyst required for an international program. Must have Scrum, Prince 2 Foundation, and German language skills (B2+). Experience in requirements management, agile software development, and business architecture is essential.

Deliver groceries to customers efficiently by e-scooter or e-bike. Meet and exceed delivery targets while providing exceptional customer service. Must be at least 18 years old with a valid work permit, driving license, and smartphone with mobile data access.

Advantest seeks a Techno-Functional Business Data Analyst to bridge the gap between business stakeholders and technical teams. The analyst will analyze source systems, identify data integration needs, and support the design of scalable solutions. Responsibilities include translating business requirements into technical specifications, creating data models, and collaborating with developers and architects.

Lead Li-Ion battery projects for BMW AG and AUDI AG from RFQ to production. Manage technical discussions, customer engagement, and project delivery while monitoring risks.

As a Systems Engineering & IT/OT Architecture Specialist, you will design, implement, and maintain OT infrastructure, ensuring production security and seamless integration with SAP and MES systems. You will also administer production-related systems, handle malfunctions, and develop security concepts in accordance with international standards.

TÜV Rheinland Ibérica seeks a PHP Full-Stack Developer with 3+ years of experience to build and maintain websites. Responsibilities include developing custom software solutions, modifying existing software, and ensuring solutions meet security, quality, and maintainability standards. Must be fluent in English, PHP, Git/GitHub, SQL, and JDBC.

EU Business School seeks freelance lecturers to deliver undergraduate and postgraduate instruction in AI, Digital Business, HRM, Project Management, Sports Management, Data Analytics. Applicants must have a Master's degree, teaching experience, and subject matter expertise.

Investment Banking Associate (Level 1 or 2) supports M&A, financing transactions, and financial modeling. Prepares presentations, analyzes financial statements, and mentors analysts. Requires a Bachelor's Degree and 3+ years of Investment Banking experience.

Integrate data sources, design data pipelines, and evolve a scalable data platform. Translate business requirements into data models and collaborate with stakeholders. Operate and stabilize pipelines, investigate incidents, and resolve data quality issues. Maintain and modernize SQL Server environments.

Product Line Manager responsible for strategic and operational success across the product lifecycle. Drive product development, manage milestones and costs, and ensure timely delivery of prototypes and production-ready solutions. Lead requirements specification, product line continuity, and manufacturability initiatives.

Develops clinical education materials and provides clinical expertise on devices, procedures, and protocols throughout clinical investigations. Educates physicians, hospital personnel, and staff on device handling, implantation, and troubleshooting. Provides feedback to improve training materials and validates center, physician, and staff certifications. Requires a bachelor's degree and 3 years of related medical device or clinical experience.

Supports the implementation and maintenance of RMS and ICS, including setting standards and methodologies. Acts as the operational point of contact for assigned processes or entities and ensures the consistent application of RMS and ICS requirements. Supports risk assessments, control design, and control optimization. Develops and delivers RMS and ICS training sessions and guidance materials. Serves as the key operational contact for risk management and internal control matters. Manages monitoring activities, facilitates review meetings with business units, and consolidates risk information for reporting purposes.

Finance professional to manage corporate housekeeping for international clients, ensuring financial performance, legal structures, and compliance.

Senior Procurement Operations professional to manage and optimize procurement activities. Focus on ensuring smooth P2P operations, supporting stakeholders, and driving process improvements. Requires experience with procurement systems (Zip preferred), strong problem-solving, communication, and stakeholder management skills.

Senior Sales Executive to expand EcoG's presence among EV charger manufacturers and industrial OEMs. Focus on strategic "design-in" sales of embedded charging software and controller platform. Requires navigating complex industrial sales cycles and building executive relationships.

Planning Advisor needed for the DACH region. Coordinate customer visits, manage scheduling, and ensure efficient service delivery. Strong communication, organization, and problem-solving skills required. Fluency in English and German is essential.