Top Tech Jobs & Startup Jobs in Cologne

Lead product design for an AI-powered B2B sales platform, shaping product strategy, visual direction, user experience, and design processes. Create user flows, prototypes, and high-fidelity visuals; collaborate with founders, engineers, sales, and support; conduct customer discovery; participate in critiques; and promote design excellence. The role focuses on simplifying complex UX challenges involving AI and human intent while delivering high-quality software in a fast-paced startup environment.

Build and evolve Polar’s finance and monetization platform for AI products. Own product development end-to-end across frontend and backend systems, create intuitive developer experiences, ship reliable software quickly, engage with merchants, and translate feedback into product improvements. The role requires strong technical foundations, product judgment, design sensibility, autonomy, engineering quality, and comfort working across the stack. Payments, billing, developer tools, open-source contributions, and side projects are valued.

Build and operate full-stack systems for an AI-powered offensive security platform. Responsibilities include developing React frontends, TypeScript APIs, Kotlin and Go backend services, deploying on AWS, designing scalable systems, optimizing databases, supporting production, and owning features from concept through deployment. The role involves close collaboration with AI and security researchers in a fast-paced remote startup.

Owns full-cycle accounting, intercompany transactions, financial reporting, reconciliations, month-end and year-end close for global entities, with a focus on EMEA. Leads statutory filings and audits, investigates discrepancies, supports ERP activities, improves controls and automation, coordinates cross-functional finance dependencies, and provides guidance to junior teammates. The role is fully remote and requires strong stakeholder management, advanced Excel skills, and multi-entity accounting expertise.

Open application inviting candidates for future roles. Applicants complete screening questions and tests without AI assistance. Applications reviewed monthly; candidates contacted if a suitable role arises.

Own Roamless’s product analytics practice from scratch. Design and run A/B tests, establish experimentation frameworks, define product metrics, analyze user behavior, build dashboards, identify optimization opportunities across activation, monetization, and retention, and translate insights into product recommendations. Partner closely with product, design, and engineering teams while building a data-driven culture across the organization.

Senior process engineer responsible for launching and ramping an electric drive unit manufacturing line in Saudi Arabia. The role owns process definition, equipment commissioning, qualification, APQP, PPAP, takt optimization, process capability, production data analysis, problem-solving, error-proofing, traceability, and technical documentation. The engineer supports stator, rotor, motor assembly, gearbox, inverter, or power electronics processes and coaches production teams through SOP and full-rate production.

Identifies and coordinates procurement cost-saving opportunities by analyzing customer BOMs, RFQs, component availability, lifecycle status, pricing, and semiconductor market trends. The role prioritizes sourcing opportunities, prepares customer quotations, collaborates with Sales, Procurement, and Supply Chain teams, maintains quote strategy files, and recommends process improvements. It requires strong BOM analysis, data analysis, sourcing, supplier relationship management, and knowledge of electronic components and global procurement.

Sell travel experiences to prospective travellers and agency partners through phone and email. Assess customer needs, recommend and sell suitable trips and additional services, meet monthly sales targets, and deliver exceptional service. Resolve booking issues, follow booking procedures accurately, maintain customer relationships, and contribute to company culture. The role requires German and English fluency, travel knowledge, flexible shift availability, and occasional weekend work.

Own the end-to-end evolution of SpherePX care pathway products, from discovery and requirements through delivery, launch, measurement, and iteration. Shape AI-enabled, personalized digital health experiences while ensuring patient safety, privacy, transparency, human oversight, compliance, and measurable value. Collaborate with clinical, engineering, design, regulatory, and operations teams; prioritize backlogs; manage product risks; analyze user and performance data; and maintain traceable product documentation.