Top Tech Jobs & Startup Jobs in Cologne

Develop machine learning and analytics solutions using large-scale datasets. Responsibilities include feature engineering, predictive modeling, workflow optimization, customer implementations, production deployments, stakeholder collaboration, technical training, and resolving data-related challenges. The role requires Python, PySpark, machine learning pipelines, MLflow or Airflow, statistical modeling, and strong communication skills, with preferred experience in fraud detection, risk analytics, compliance, cloud environments, and model monitoring.

Leads Cast AI’s global marketing strategy, organization, budget, and operating model. Owns positioning, demand generation, pipeline, customer acquisition, product adoption, marketing efficiency, and revenue contribution. Builds an accountable, AI-enabled marketing organization spanning product marketing, digital, content, field, partner, lifecycle, customer, and marketing operations. Partners closely with executives, Product, Sales, Customer Success, and Revenue Operations across global markets.

Lead a small engineering team building and shipping AI-powered SaaS features. Set technical direction, establish standards for observability, testing, security, scalable architecture, and AI evaluation, while managing delivery timelines and team development. Remain hands-on by designing and implementing production AI systems using LLMs, embeddings, RAG, vector databases, and related tooling. Partner with Product and leadership on prioritization, architecture, resourcing, and risk management.

Develop and maintain Windows agent software for banking applications, writing new components in Rust and maintaining C++ legacy code. Collaborate with designers, frontend developers, and product managers, participate in agile ceremonies, perform code reviews, and ensure CI/CD integration and high-quality, well-documented production code.

Architect, develop, and scale cloud services, dashboards, and data pipelines to support robotics and autonomous vehicle telemetry. Integrate IoT devices with Azure services, build APIs/microservices, implement observability and CI/CD, validate systems in lab and field, and mentor junior engineers.

Own and develop Beautiful Destinations’ production Content Operating System. Build FastAPI services, React front ends, PostgreSQL integrations, and Cloud Run deployments. Manage sprint commitments from scoping through release, monitor reliability, respond to incidents, make architecture decisions, and control technical debt. Work daily with AI coding agents and collaborate with an AI Developer on shared infrastructure and AI-powered products in a remote, asynchronous European team.

Define and govern end-to-end architectures for telecom and enterprise digital transformation programs. Design OSS/BSS, cloud, network, integration, and cloud-native solutions; support pre-sales workshops, RFPs, proofs of concept, and estimation. Produce architecture artifacts, guide legacy modernization, ensure performance, security, resilience, and scalability, and provide delivery governance. Engage executive and technical stakeholders, mentor architects and engineers, and contribute customer insights to product roadmaps.

Manage bids and acquisition projects, supporting presales and delivery teams throughout customer acquisition. Develop and maintain service and proposal templates, contribute to the strategic growth of Managed Services, and manage customer or internal projects. The role requires strong analytical, conceptual, entrepreneurial, and solution-oriented thinking, independent work, business-fluent German and English, and proficiency with Microsoft Office tools.

Owns the end-to-end product lifecycle for Optima workforce-management products serving the German healthcare market. Responsibilities include customer and market research, roadmap and backlog prioritization, stakeholder alignment, prototyping, pilots, product launches, metrics definition, and evidence-based decision-making. The role partners with engineering, design, data, marketing, and sales while applying AI-assisted prototyping and responsible AI governance to improve enterprise healthcare SaaS workflows.

Lead architecture and implementation of scalable full-stack features using NestJS and Next.js, integrate LangChain-driven AI, manage PostgreSQL schemas and performance, build responsive UIs with Tailwind CSS, implement authentication with Clerk, and ensure reliability with Puppeteer-based testing and automation.