Marcel Nellesen

About

Experience

• Chief Product & Technology OfficerCurrent

  TANGANY · München

  Nov 2025 – Present

  As Chief Product & Technology Officer at Tangany, I lead Product Management, Product Engineering, Data Analytics, and Platform Engineering teams under a single leadership mandate — formalizing a combined role I had already been operating in for the past year. My focus is building the next generation of Tangany's custody platform: a partner-ready, compliance-first infrastructure layer that scales with the regulated digital asset market through MiCAR and beyond. Mandate & Current Focus 🧩 Formally unifying product and technology leadership to eliminate handoff friction between roadmap and execution, and to accelerate delivery of the next-generation custody platform for institutional clients. 🛡️ Aligning Tangany's technical and product direction with MiCAR, BaFin, and other regulatory requirements, embedding regulatory robustness into the platform rather than retrofitting it. 🤝 Leading Tangany's continued expansion across B2B and B2B2C custody use cases, with a focus on scalable, partner-ready services for banks, brokers, exchanges, and fintechs. 🧱 Scaling Tangany's platform operating model to support the next growth phase, refining the product and engineering organization, leadership structure, and delivery cadence for sustainable growth. 🤖 Expanding AI adoption across product and engineering workflows, from specification writing and compliance documentation to developer tooling, at the intersection of a regulated environment and modern development practices. 🎯 Serving as executive sponsor for Tangany's strategic partnerships, shaping joint roadmaps, integration architecture, and commercial alignment with Tier-1 clients. The CPTO role formalizes what has become operationally true at Tangany over the past year: at a regulated custody provider, product and technology decisions are inseparable, and leadership over both belongs on one desk.

• Founder