ruby English-speaking jobs in Düsseldorf

For our bilingual schools in Dreieich (near Frankfurt) as well as Frankfurt City we are looking for a School Counselor (in full-time or part-time).

Configure and enhance Workday's Core HCM module, partnering with stakeholders to translate business needs into system design improvements. Provide guidance to SumUppers using Workday, build reports and dashboards, and contribute to documentation and change management.

Join our team and help deliver smiles! Assist with unloading, lifting, transporting, scanning, and sorting Amazon products. Must be able to speak basic German or English, follow safety guidelines, and be comfortable standing and lifting up to 15kg.

Unpaid, 3-month remote internship with Culture Vitale, a European startup focused on workplace wellbeing. Assist with marketing, sales, operations, events, and community. Tasks include social media management, content creation, lead generation, and event coordination. Must be highly organized, detail-oriented, and comfortable working independently. Native German and fluent English required.

Working Student - Legal (m/f/d) will conduct legal research, provide administrative support, and assist with expansion, data privacy, and AI compliance. Must be a current Law student in Germany with excellent German and English communication skills.

Buena is seeking a Venture Builder to own and develop a new revenue vertical from the ground up. Responsibilities include owning the P&L, driving product development, and rolling out the vertical across existing property management operations. The ideal candidate has a proven track record of building and scaling businesses, strong commercial acumen, and the ability to learn quickly and adapt. Native-level German fluency and the ability to work from the Prenzlauer Berg office are required.

This role is for a new-business hunter Account Executive to manage a high-value retail territory across DACH and Central Europe. Responsibilities include account planning, territory management, pipeline generation, and managing the entire lifecycle of high-value enterprise SaaS deals. The ideal candidate has 3+ years of experience in a customer-facing, new-business SaaS hunter role with a proven history of managing high-value portfolios and exceeding quotas. Strong knowledge of and experience selling into large, complex retail organizations is required. Native or C1 level German language proficiency is essential.

Provide technical support for the hinotori robotic surgery system in the operating room, ensuring safe and efficient use. Collaborate with internal and external stakeholders to troubleshoot issues and optimize workflows. Support hospitals with equipment, instrument availability, and training.

Nachhilfeunterricht seeks motivated tutors (m/f/d) to teach online or in person across various subjects. Earn €15–35 per hour with flexible hours.

Actuary responsible for reserving tasks under GAAP, IFRS, and Solvency II. Provides actuarial advice to CFO, Board, and Branches. Supports Risk Management, ORSA process, and Planning/FP&A. Requires a university degree in actuarial science, mathematics, statistics, or related field with experience in actuarial reserving (ideally motor).

Solve large, complex real-world problems using ML, AI, NLP, RL, and distributed systems. Develop production-ready models and collaborate with tech and product teams.

Deep Origin seeks a Head of Toxicology to lead and scale a computational toxicology platform. This role requires deep technical expertise in computational toxicology, drug discovery, and systems biology, as well as experience designing and deploying computational models. The ideal candidate will have a strong understanding of preclinical safety workflows, regulatory frameworks, and experience working with complex pharma datasets.

Lead a global SAP S/4HANA transformation program, defining the roadmap, governance, and rollout strategy. Drive process harmonization, manage stakeholders, and oversee partner delivery. Significant experience leading large-scale ERP transformations is required.

ADAS Vehicle Test Engineer will integrate, validate, and verify ADAS systems at vehicle level, ensuring compliance with OEM requirements, European regulations, and safety standards. The role requires close collaboration with OEM customers, internal development teams, and production sites.

Gain practical experience in biocatalysis at Bayer Crop Science. Support projects using microbiological, biochemical, and process-chemistry techniques. Contribute to the establishment and optimization of biocatalytic processes.

Own the validation, testing lifecycle, and release approval of core autonomy products. Develop and execute test strategies, design test scenarios, and collaborate with engineering teams to implement automated test suites. Drive the release management lifecycle and ensure compliance with technical requirements.

Site Supervisor to oversee day-to-day operations and maintenance of earthing & Lightning Protection projects. Ensures efficient project delivery, quality standards, and positive client relationships. Leads a team of technicians, resolves issues, and promotes a safe work environment.

Lead a Field Application Engineering team across EMEA, driving design wins and revenue growth. Manage customer relationships, collaborate with sales and product development, and translate customer needs into product solutions.

Happy Mammoth seeks a part-time freelance Creative Strategist with a direct-response mindset for paid media (Meta-focused) campaigns. Develop performance creative strategy, translate data into creative decisions, and build testing roadmaps. Proven experience in performance marketing creative and direct-response copywriting required.

Provides safe and professional transportation for senior leadership, Shareholders' Committee, and VIP guests. Coordinates complex travel, logistics, and vehicle maintenance.