ruby English-speaking jobs in Düsseldorf

Become a trusted Customer Success Manager for German production companies. Own the client lifecycle, drive adoption, and ensure platform value for a portfolio of 10-20 clients. Requires 3+ years in SaaS success and fluency in German.

Network Administrator to support and maintain LAN, WAN, and WLAN infrastructure. Responsibilities include managing firewalls, monitoring servers, and troubleshooting IT issues. Requires 2+ years of experience with Cisco and Fortinet equipment.

Analyze global procurement markets to develop and implement category strategies. Lead sourcing, negotiations, and manage supplier portfolios while driving cost savings and sustainability. Requires 5+ years in industrial/consulting procurement.

Commercial Contract Manager needed for a leading renewable energy company. Responsibilities include managing contracts, mitigating risks, and ensuring compliance across operational assets. Requires 2+ years of experience and native German/fluent English.

Supply and Inventory Planner balances supply, inventory, capacity, and risk in external manufacturing. This role supports S&OP and supply review by translating demand into feasible plans, managing constraints, and tracking KPIs. Requires 5+ years in supply chain planning.

Interim SAP Rollout Project Manager to own end-to-end project delivery during the main implementation phase. Responsibilities include project governance, risk mitigation, and stakeholder management across business and implementation teams. Requires proven project management experience in SAP rollouts.

Senior Pricing Analyst builds financial, revenue, and ROI models to operationalize pricing strategy. Analyze large datasets using AI and analytics tools to drive pricing decisions and set modeling standards. Requires 5+ years in financial modeling.

Senior Operational Procurement Manager responsible for pharmaceutical and API procurement for a defined therapeutic area. Manages CDMO interface, end-to-end order fulfillment in SAP S/4HANA, and inventory. Requires 3-7 years in pharma supply chain.

Technical Project Manager (AI-native) drives end-to-end project delivery and technical spec translation for an AI-driven B2C product. Requires fluency with agentic AI tools and experience leading software delivery.

Reliable couriers needed for a leading food delivery platform. Deliver food and drinks using an E-Bike in Cologne and surrounding areas. Must be 18+, confident cycling in city traffic, and have good communication skills in English or German.

Sales Support / Vertriebsinnendienst role at STARTEAM GLOBAL, a global PCB manufacturer serving diverse sectors. This position supports a company with extensive international operations.

Senior Group Accounting and IFRS Specialist prepares consolidated financial statements under IFRS. This role acts as an IFRS expert, advising subsidiaries and stakeholders on complex accounting and consolidation matters.

M&A Associate in Technology for a transatlantic investment bank. Responsibilities include deal execution, financial modeling, valuation, and client advisory for tech M&A transactions under $1B. Requires 3-5 years of experience and fluency in German and English.

Own and grow Tellent's partner ecosystem across the DACH market. Build trusted relationships, drive joint growth plans, and recruit new high-potential partners, particularly in the HR ecosystem.

Experienced Salesforce Developer needed to design, develop, customize, and support scalable Salesforce solutions. Requires 3+ years of expertise in Apex, LWC, Flow, and integrations using REST/SOAP APIs.

Build and scale high-performance, low-latency systems in Golang. Take complete ownership of projects from idea to production while defining the technical culture of GlassFlow.

Senior Talent Acquisition Specialist drives recruiting and performance management. Responsibilities include owning requisitions, improving hiring processes, and coordinating company-wide performance reviews. Requires 7+ years in operational recruiting and performance management.

Energy Operations Intern role for a climate fintech. Key duties include customer/partner communication, building energy market expertise (tariffs, smart meters), and optimizing processes using AI. Requires fluent German and good English.

Student internship supporting concept work on AI-driven solutions for medical applications in neuroscience and healthcare. Develop and integrate machine learning algorithms for ophthalmic and medical devices.

Manufacturing Engineer role supporting process design, development, and improvement in prefabrication and offsite manufacturing. Focus on production efficiency, quality, and technical problem-solving. Requires relevant engineering experience.