ruby English-speaking jobs in Düsseldorf

Experienced Service Engineer needed for an international technology company specializing in process analytics. Responsibilities include technical support and maintenance of measurement and gas-analysis systems in Bavaria. Requires technical training and strong German skills.

Product Engineer needed to build a collaborative scheduling platform. Own the end-to-end feature process using TypeScript across FE (Vue) and BE (NestJS/AWS). Requires 3-5 years of full-stack experience.

Founding AI Engineer to build multi-agent systems for construction. Requires real AI engineering experience with LLMs, full-stack skills in TypeScript/React, and product sense to solve complex, unsolved problems.

Technical Support Engineer provides pre-sales and after-sales support for solar PV, inverters, and energy storage. Responsibilities include system configuration, troubleshooting, and maintaining technical documentation. Requires a relevant technical degree and fluency in German with good English.

Controller for European Logistics & Supply Chain Finance. Responsibilities include cost controlling, budgeting, and management reporting. Requires a relevant degree, analytical skills, and proficiency in German and English.

Fully funded PhD position in generative AI and Bayesian estimation for 3D human motion. The successful candidate will develop new methods for estimating 3D human motion, with a focus on models that respect the geometry of human joint rotations.

Manage and develop a global functional ingredients product portfolio. Drive category strategy, monitor market trends, and optimize profitability through cross-functional collaboration. Requires a Master's degree or 5+ years of relevant B2B ingredients experience.

Student Assistant in Vacuum Technology is sought for cleaning and assembling vacuum components in a cleanroom. Requires enrollment in physics or engineering, interest in vacuum technology, and English proficiency.

Develop GWDG's QC ecosystem, connecting quantum workloads to HPC infrastructure. Responsibilities include scheduler logic, SLURM optimization, and performance tuning for hybrid workloads. Requires CS/Physics degree and Python coding skills.

The Klinik für Allgemein-, Viszeral- und Kinderchirurgie seeks a part-time Scientific Employee/PhD Student. The role supports the Center for Digital Surgery, focusing on AI and Robotics to make surgery intelligent using multimodal data.

Team Lead Java Application Engineering develops innovative security solutions using JavaEE and RESTful APIs. Responsibilities include technical leadership, architecture, mentoring, and ensuring high code quality. Requires Java/JavaEE experience and technical leadership skills.

Leads SoSafe's legal team, providing legal counsel to leadership and overseeing all legal functions. Sets legal strategy, manages risk, and ensures compliance with regulations. Partners with Sales, Product, and Information Security teams. Requires 8+ years post-qualification experience, including 3-5 years in a commercial environment, and fluency in German and English.

Senior Backend Developer needed to build high-performance Java/Kotlin microservices for financial data processing and index calculations. Requires 5-10 years of experience with distributed systems and large datasets.

Amazon Warehouse Team Member role involves unloading, lifting, and transporting products, as well as scanning and sorting packages. Candidates must be 18+, comfortable standing/walking, and proficient in German and/or English.

Technical Management Engineer provides Level 2 service support, assists L1 teams with escalations, and supports L1 training. Responsibilities include technical support, training, and managing regional issues. Requires a technical background and 3+ years in technical support.

Lead M&A for a European IPP, defining and executing a 3-5 year strategy to secure multi-GW renewable assets. Responsibilities include deal origination, due diligence, and team leadership. Requires 3+ years leading M&A in utility-scale renewables.

Oversee regulatory compliance for outsourcing and third-party arrangements. Coordinate risk assessments and support governance throughout the outsourcing lifecycle. Requires a degree in Law, Business, or Finance, and experience in regulated financial services.

Experienced MEP Quantity Surveyor needed for a 12-month contract supporting a major life sciences project. Responsibilities include commercial management of MEP packages, budget control, and managing variations. Strong MEP and construction contract knowledge required.

Senior Project Development Lead will manage large-scale battery energy storage projects through development, focusing on grid connection, permitting, and stakeholder engagement.

Principal Software Architect to drive the AD/ADAS test and validation product. Architect cloud-native web platforms, define SiL/HiL strategies, and lead engineering teams with expertise in AD/ADAS, AI, and safety standards.