ruby English-speaking jobs in Düsseldorf

Doctoral Researcher in Molecular Microbiology sought to purify, characterize, and modify bacteriophages of Klebsiella pneumoniae. Responsibilities include research in bacterial and phage genetics, participation in the Collaborative Research Centre VirusREvolution, and publication of research findings.

Lead the German operations of Protime, a European provider of HR software solutions. Define and execute the commercial strategy, build and lead the local team, and drive sustainable growth.

Leads the Independent Aftermarket portfolio for the full Clarios product line, overseeing P&L and driving product strategy, lifecycle management, and market success across EMEA. Manages a team of five product specialists and analysts, collaborating cross-functionally to support launches and lifecycle activities.

Provides individualised support for an older Primary student, focusing on emotional regulation, behaviour, safety, engagement, transitions, and access to the school day. Supports the student in following routines, expectations, and behaviour plans, and helps them recognise signs of dysregulation and use agreed regulation strategies. Builds a positive relationship with the student, supports their interactions with peers and adults, and encourages the use of communication strategies. Keeps brief notes on significant incidents, patterns, successful strategies, and areas of concern.

Design performance banners for social media campaigns, adapting them to various formats and styles. Collaborate with creative director, art director, and social media manager.

Electrical Technician will receive full training on HV cables and testing. Responsibilities include testing and maintaining electrical cables, and traveling throughout Germany and Europe. Requires previous technical experience in electrical specialism, a full driving license, and fluency in German.

The Leibniz Supercomputing Centre seeks an HPC Interconnect Specialist to manage and optimize high-speed interconnects for HPC clusters. Responsibilities include network configuration, performance tuning, and collaboration with system administrators and application teams.

UX/UI Design Intern will contribute to the company's Design System in Figma, implement a dark theme, ensure UI responsiveness, and improve accessibility.

Fixed-term Dispatch Agent (ending November 30, 2027) responsible for preparing courier schedules, coordinating work distribution, monitoring delivery cycles, and providing support to couriers. Requires experience coordinating teams in a busy transport environment, good Microsoft Office skills, and strong communication abilities.

Production Engineer to lead technical expertise for rubber molding technologies, including tooling design, compound selection, and manufacturing processes. Drive Design-to-Cost initiatives and manage supplier selection and production processes.

Senior AI Technology Sales specialist to build and deploy AI solutions for CPG, General Merchandise, and Retail clients. Drive revenue growth by nurturing leads, conducting presentations, and building client relationships. Lead a global sales team. Requires 7+ years of technology sales experience, industry knowledge, and strong leadership skills.

Design and develop the client's Bank app for Android and iOS. Plan and design API interfaces and contribute to the technical architecture. Optimize app performance and user experience. Work with product owners, designers, and backend developers.

Leads affiliate-wide Customer Excellence agenda, shaping commercial performance, customer experience, and operational effectiveness. Partners with General Manager and Affiliate Management Team to drive business planning, performance management, and transformation across Commercial, Medical, Market Access, and Business Technology Services. Focuses on commercial performance, transformation, customer excellence, and digital enablement.

Support the Influencer Marketing France Team in influencer management, including influencer acquisition, collaboration management, performance evaluation, and daily business tasks.

Intro Stratosphere Games seeks a Gameplay Design Intern to support senior designers in developing and refining game systems, mechanics, and levels. Interns will participate in brainstorming, provide feedback, and contribute to the creative process.

Production Technician needed for LEGOLAND® Deutschland. Responsibilities include operating sound equipment, mixing live vocals and tracks, and ensuring SFX are functioning. Experience with Allen and Heath mixing desks, wireless microphones, and basic lighting knowledge is preferred. Must have 1-2 years of experience in the technical entertainment field and a valid UK Driving Licence.

Student assistant position supporting research on the simulative design and manufacture of PVD-coated cutting tools. Responsibilities include experimental investigations, data analysis, numerical simulations, and administrative tasks.

Design Engineer for Mission Management Systems (NH90) at Airbus Helicopters Deutschland GmbH. Develop operational concepts, define functional chains, and specify functions and avionics systems.

Site Administrator / Document Controller will manage project documentation using Procore and Eida, including uploading, issuing, distributing, and archiving documents. The role requires experience in document control, site administration, or project administration, along with strong Microsoft Office skills.

Remote Graphic Designer will create static, carousel, and animated digital advertisements for a premium health technology product. Responsibilities include developing visuals, incorporating AI-assisted tools, and ensuring visual consistency across all assets. Requires experience designing high-performing paid social or native advertising creatives and a strong portfolio showcasing direct-response campaigns.