ruby English-speaking jobs in Düsseldorf

Designs, builds, and deploys production-ready AI solutions, integrating AI into business systems and optimizing performance. Collaborates with clients to understand processes, identify automation opportunities, and drive AI-led change. Builds AI prototypes, demonstrates capabilities to prospects, and assesses client AI readiness. Requires 2+ years of AI/ML implementation experience, strong Python skills, and a portfolio of deployed AI systems. Fluent English required.

Provides operational support for recruitment, internal mobility, and HR processes. Coordinates administrative tasks, manages databases, and acts as a point of contact for candidates and stakeholders. Requires 5+ years of experience in a secretarial or operational role, preferably in HR.

Join Resourcify's growing team if you are passionate about software engineering, have a strong work ethic, and are excited about the Green Economy.

Lead and develop X FAB's photonics activities, focusing on silicon photonics, heterogeneous integration, and optical device development. Manage multidisciplinary teams, define technology roadmaps, and drive strategic collaborations with partners.

Develop and execute the country's financial strategy, manage budgeting and forecasting, and monitor financial performance. Provide financial analysis and ensure compliance with regulations. Lead and mentor the finance team and build relationships with external stakeholders.

Operate and improve the cyber security posture of ControlExpert's on-prem and cloud environments. Responsibilities include incident response, vulnerability management, endpoint security, and operational security engineering.

Develop and maintain software components in the domain of sensors and embedded AI using Rust, Go, Python, and JavaScript. Participate in the design and definition of software architectures and technical interfaces.

Implement new functionality, ensure existing code runs smoothly, and debug/optimize. Requires a computer science degree, strong C++ knowledge, and multi-threaded programming experience.

Account Executives drive incremental add-on business within Workday's existing customer base. Responsibilities include developing and maintaining customer relationships, performing account planning, and coordinating with internal teams. Requires 4+ years of experience selling SaaS solutions to C-levels and negotiating deals.

Gisma University of Applied Sciences seeks a Full-Time On-Campus German Tutor to teach students from A1 to C2 levels. The ideal candidate will design interactive lessons, prepare assessments, provide feedback, and foster a motivating classroom environment. Native or near-native German proficiency and a recognized teaching certification (e.g., DaF/DaZ) are required.

Senior Verification Engineer will join a cross-functional agile team to develop a connectivity platform. Responsibilities include planning, creating, and executing test cases, collaborating with developers to fix bugs, and contributing to process improvements. Experience in software verification, test automation, and distributed systems is required.

Manage and deliver learning programs, design blended learning solutions, and embed AI into L&D practice. Drive global L&D projects, analyze learning data, and manage L&D operations.

Define and develop functional architectures for a subsystem of complex semiconductor systems. Analyze system requirements and derive technical specifications. Develop and evaluate models to validate concepts and integration strategies.

Collaborate with Account Executives to deliver demos and consult on technical solutions for prospective customers. Run technical evaluations of the Staffbase platform and consult on integration methods. Craft RFP responses and interface between sales and product development.

As a (Junior) Portfolio Analyst, you will be the internal expert on commodity markets and provide ad-hoc analyses and data-driven queries for stakeholders. You will also gather and challenge stakeholder requirements, build data structures, and establish an internal knowledge network.

C++ Programmer needed for current and future RTS game projects. Collaborate with teams to realize game vision, support art and gameplay features, and establish engineering tasks. Strong C++ skills, experience with proprietary game engines, and passion for RTS/RPG games required.

Implement and improve graphic features, refactor code, and fix bugs. Requires 2+ years of C++ development experience, knowledge of graphics APIs (DirectX, Vulkan, OpenGL), shader writing (GSL, HLSL), and debugging tools.

Machine Design Engineer needed for semiconductor chip manufacturing. Requires expertise in chip design and silicon validation, experience with tape outs, and strong problem-solving skills.

Design and implement robotics software integrating ML models into perception, decision-making, and action pipelines. Ensure system reliability, handle latency and safety constraints, and debug real-world issues.

Define, develop, and execute test plans for 5G solutions (RAN and Core features). Collaborate with Product Management and Engineering teams as a test engineer and product expert. Perform end-to-end functional, performance, and interoperability tests. Validate features such as QoS, slicing, and handover. Provide first and second level support for the product.