ruby English-speaking jobs in Düsseldorf

Own end-to-end product and cloud security for a B2B SaaS platform. Responsibilities include threat modeling, hardening AWS infrastructure, building detection/response, and supporting compliance. Requires 7+ years of security engineering experience.

Leads and develops a regional sales team across Central Europe & Nordics, driving profitable growth and managing top and bottom lines. Develops and executes regional growth strategies, builds strategic partnerships, and monitors market trends. Requires 15+ years of experience in sales, key account management, or business development within fragrance, ingredients, or FMCG industries.

Own the insurer channel for nyra health, deepening existing partnerships and opening new use-cases. Drive repeatable revenue by building ROI and health-economics cases with insurance decision-makers. Requires insurance sales experience and C1+ German.

Project Manager plans, directs, and ensures successful project outcomes utilizing assigned teams, standards, and tools. Manages project execution, performance, and safety, collaborating with internal and external stakeholders. Communicates project milestones, status updates, and escalations.

Teachers needed for Mathematics, Physics, and Computer Science at a Studienkolleg. Prepare international students for German university entrance exams. Requires subject knowledge, 1+ year teaching experience with groups, and fluent English.

Internship in French International Tourism Management. Responsibilities include customer support, sales management, account management, content creation, and digital marketing analysis. Requires fluency in French and English.

Avionics Systems Architect drives complex, safety-critical projects from requirements to validation. Responsibilities include technical ownership, end-to-end engineering, and managing subcontractors. A relevant engineering degree and fluent English are required.

Senior Global Loyalty Program Lead to architect and own HYROX's global loyalty ecosystem. Design and scale the program, integrating tech, data, and commercial strategy to drive CLV. Requires experience building loyalty programs from zero to one.

Support Product Managers in developing and launching V1G/V2G products. Coordinate cross-functional activities, analyze user feedback, and maintain product documentation. Requires current Bachelor's/Master's degree and strong analytical skills.

Windows System Engineer needed for operational and lifecycle management of mission-critical satellite systems. Requires 5+ years in Windows Server administration, PowerShell, and experience with enterprise server platforms.

Senior Business Development Manager to accelerate product distribution in the DACH market. Responsibilities include pipeline management, developing sales strategies for Ecom/Retail/Crypto merchants, and C-level negotiations. Requires 10+ years in global enterprise sales with payments industry expertise. Fluent in German and English.

Doctoral Candidate position investigating biofilm maturation and antibiotic tolerance on metal surfaces related to orthopaedic device infections. Requires a Master's in a relevant science and interest in microbiology and infection biology.

Preclinical R&D Expert needed for ADC & Bispecific programs. Review R&D data, label scientific data, and advise on development decisions. Requires 5+ years of hands-on preclinical R&D experience with drug assets and ADCs/bispecific antibodies.

Intern for Book Editorial at a lifestyle publisher. Tasks include image research, editorial support, and contributing to digital platforms. Requires studying Journalism, Communication, or related field, native English, and good German skills.

Solution Engineer to develop Salesforce-based business solutions, custom applications, and integrations. Requires 2+ years of Salesforce development expertise, Apex, and Visualforce skills, and proficiency in modern tools.

Lead Omnex, an AI-native operating system for multi-channel e-commerce sellers, as Co-Founder & CEO. Own strategy, GTM, product iteration, capital raising, and team building. Requires founding experience and e-commerce expertise.

Inside Sales Representative manages and grows existing Sensient Flavors Europe accounts in the food and beverage industry. This role involves developing customer relationships, driving revenue, and managing the sales pipeline. A Bachelor's degree and B2B sales experience are required.

Senior Full Stack Developer to build applications for health data management. Requires strong skills in JavaScript/TypeScript, Vue.js, backend services, and Docker. Own features from requirements to production.

Bitumen Account Manager drives commercial growth across Germany, Austria, and Denmark. Responsibilities include growing sales, managing customer partnerships, and shaping market strategy by collaborating with trading and supply chain teams.

Systems Engineer to ensure stable, scalable operations and drive optimization of the CargoWise One application infrastructure. The role involves managing Microsoft Windows Server, IIS, and SQL Server on AWS EC2.