ruby English-speaking jobs in Düsseldorf

FlowDesk CX seeks a Digital Marketing Account Specialist to lead German market expansion. The role involves strategic consulting, account optimization, professional outreach, and leveraging AI-driven insights to design PPC campaigns.

Dutch-speaking Sales & Marketing Agent needed in Berlin. Manage sales and marketing activities, build client relationships, and meet sales targets. Must have 1+ year sales experience, C1 Dutch, B2 English, and legal authorization to work in Germany.

IT Systems Administrator (m/f/d) CAFM needed for project implementation, software maintenance, and user support. Requires a degree in a related field, CAFM experience, and strong planning/organizational skills.

Supports the team with planning and coordination of projects in downstream process development and process analytics. Executes experiments related to downstream processes, performs process analytics and data management, and coordinates with industrial DSP, R&D, Upstream, and Maintenance.

Clinical Research Associate 2 will perform site selection, monitoring, and close-out visits. Responsibilities include supporting subject recruitment, evaluating site practices, managing study progress, and collaborating with clients and study sites. Requires a life science degree or equivalent, two years of monitoring experience, knowledge of GCP and ICH guidelines, fluency in German and English, and a driver's license.

Gig's pizzeria in Berlin seeks a reliable individual for a minijob, 2 days a week. Responsibilities include stretching, topping, and baking pizzas, preparing ingredients, and maintaining a clean workstation. Basic pizza experience is required, along with flexibility, reliability, and a team-oriented attitude.

Allucent seeks an experienced Clinical Research Associate (CRA) to independently monitor investigational sites, ensuring compliance with protocols, GCP, ICH, SOPs, and regulations. The CRA will build strong site relationships, identify and resolve issues, and manage all aspects of monitoring for assigned clinical trials.

Senior Product Compliance Expert - Payroll will translate regulatory requirements into actionable inputs for product teams. This role requires strong knowledge of German wage tax and payroll compliance, experience supporting product development with compliance insights, and strong communication skills in German and English.

Senior Accountant will prepare monthly and annual consolidated financial statements for the EMEA sub-group, perform analytical reviews, and ensure compliance with group accounting policies.

Build lean, high-performance C++ software components with a focus on performance and quality. Analyze systems, write automated tests, and mentor colleagues. Master C/C++, databases, Linux, and web technologies.

We are seeking a (Senior) Firewall / IT Security Specialist to establish, develop, and optimize IT security. Responsibilities include administering firewall systems (Cisco and Fortinet), implementing network hardening measures, and ensuring a scalable security architecture.

As a Business Analyst, you will support the development of innovative software solutions for the financial services industry. You will analyze business processes, create requirements, conduct testing, and contribute to product development.

German-speaking Digital Marketing Sales Executive to drive new business and manage client relationships in Barcelona. Minimum 1 year of sales and/or digital marketing experience required. Fluent German (spoken and written) essential.

Administers and maintains Exchange infrastructure, backup structures, and data center systems. Designs, plans, and implements new solutions and optimizes existing systems. Supports international locations with network-related issues.

The Strothoff International School seeks a part-time or full-time Teacher for its Primary School in Dreieich. The Teacher will plan and deliver lessons aligned with the school's curriculum and the IB Primary Years Programme (PYP), ensuring alignment with Hessen curriculum requirements.

Senior Cyber Security Penetration Tester will execute penetration tests on various systems, identify vulnerabilities, and develop security testing methods. Requires advanced knowledge of application, network, and cloud security testing, penetration testing tools, and scripting. Excellent problem-solving and communication skills in German and English are essential.

Senior Accountant responsible for operative and strategic accounting, financial reporting, annual financial statements, and audit support. Requires a finance and accounting degree, 5+ years experience, and proficiency in MS Office and accounting software.

Software Engineer to architect and ship high-performance applications. Build end-to-end features, design scalable backend systems, and prototype with AI capabilities. 5+ years experience, proficiency in TypeScript, SQL, and modern frameworks required.

The Occupational Health & Safety Specialist will provide global OHS expertise, focusing on implementing the corporate OHS Management System, assessing risks, reviewing premises-related OHS components, and ensuring alignment with UN system-wide OSH, wellbeing, and accessibility frameworks. Duties include coordinating the implementation of the UNDP corporate OHS Management system, providing technical OHS support, monitoring OHS KPIs, conducting assessments and audits, and acting as the UNDIS focal point for OGO. The Specialist will also provide expert guidance on accessibility features for new and existing UNDP premises, review architectural drawings, and develop checklists and training materials.

Auditing and Compliance Manager ensures effective internal control systems across Germany and business units, aligning with Wolters Kluwer ICFR, COSO principles, and regulatory requirements.