Cologne, Germany

Jahn
Schlosser.

Payments professional, lecturer, and devoted student of how complex systems can be made genuinely useful for people.

Team Lead Payments Expert Lecturer Public Speaker
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Jahn Schlosser

01

About me

I've spent the better part of two decades living and working at the intersection of banking infrastructure and human experience — the place where payment flows, regulatory complexity, and real people's needs all collide.

After studying in Heidelberg, I sharpened my analytical edge at PwC and built deep operational know-how at UBS in Switzerland. In between, I founded and ran my own venture — SDS, Schlosser Data Services — until it was acquired in 2015.

Today I lead the Customer Success Banks team at Omikron Systemhaus in Cologne, helping financial institutions navigate the fast-shifting world of corporate e-banking. Whether that means guiding a bank through the rollout of Instant Payments, implementing Verification of Payee, or rethinking how multicash can serve the next generation of treasury teams — I'm the person who sits between the technology and the humans who depend on it.

Alongside that, I have lectured at IU International University of Applied Sciences, teaching Business English and Change Management. There is something genuinely rewarding about watching a student connect language and leadership concepts to their working life for the first time.

And when I step away from all of that — I bake, I write, I surf when geography allows, and I'm a husband and father doing his best in Cologne.


02

Areas of expertise

Instant Payments

Deep hands-on experience implementing real-time payment infrastructure across European banking landscapes, from regulatory interpretation to live rollout.

SEPA InstantEU RegulationRTP

Verification of Payee

Guided banks and corporates through VOP implementation — one of the most significant structural changes to European payment processes in years.

VOPIBAN ValidationAPI
🏦

Electronic Banking

Years of product and customer success work on multicash — one of Europe's most established corporate e-banking platforms — across 20+ countries.

multicashEBICSISO 20022

Payment Infrastructure

End-to-end knowledge of payment hub architecture, SWIFT connectivity, and corporate treasury workflows.

SWIFTPayment HubeBAM
🎓

Teaching & Lecturing

Lecturer at IU International University, teaching Business English and Change Management — combining strong language skills with real-world corporate experience to prepare students for professional environments.

Business EnglishChange ManagementIU

UX & Requirements

Formally trained in Human-Computer Interaction, with years of practical experience designing e-banking interfaces and complex workflow systems.

UX DesignRequirements Eng.Process Design
03

On stage

The European payments landscape is transforming fast — and the gap between what's technically possible, what regulators require, and what banks actually understand is still enormous. That gap is where I speak.

My talks are built on years of front-line experience: implementing Instant Payments at scale, navigating the VOP rollout with real banking clients, and watching the ISO 20022 migration unfold from the inside. No theory for its own sake — just clear, honest insight from the coalface.

  • SEPA Instant Payments — from regulation to reality
  • Verification of Payee: what banks get wrong
  • ISO 20022 migration — practical lessons learned
  • The future of corporate e-banking
  • Customer success in complex banking software environments
  • Digital transformation in treasury management
Invite me to speak
Speaking at a conference

Speaking at industry events and banking conferences across Europe — covering Instant Payments rollout, Verification of Payee, and the evolving landscape of corporate e-banking.

Various industry engagements · Europe

04

The journey

2015 – Present

Team Lead Customer Success Banks

Omikron Systemhaus GmbH & Co. KG — Cologne

Leading the bank-facing customer success function for multicash, Europe's leading corporate e-banking platform. Driving adoption of Instant Payments, VOP, and ISO 20022 across a diverse portfolio of European financial institutions. Regular speaker at industry events and banking conferences.

Ongoing

Lecturer — Digital Banking & Payment Systems

IU International University of Applied Sciences

Teaching Business English and Change Management modules at degree level, combining professional language skills with organisational transformation frameworks. Practical focus throughout — drawing on real-world corporate experience to make the material relevant and immediately applicable for students.

Until 2015

Founder & Managing Director

SDS – Schlosser Data Services

Founded and scaled a data services consultancy focused on banking and financial sector clients. Successfully sold in March 2015.

Earlier

Consultant & Banking Professional

PwC · UBS · Zürcher Kantonalbank

Analytical foundations at PwC and hands-on banking operations at UBS and Zürcher Kantonalbank in Zurich, building broad expertise across audit, advisory, and core banking processes.

2012

Human-Computer Interaction

Stanford University — MOOC

Formal study in HCI — the conceptual grounding for a career-long focus on designing systems that genuinely work for people.

Foundation

Studies

Ruprecht-Karls-Universität Heidelberg

Academic foundation at one of Germany's oldest and most respected universities.


05

Beyond the office

🍞

Baker

Sourdough, patience, and the quiet satisfaction of a good crust. The antidote to the workday.

🌊

Surfer

Whenever geography allows. There's a particular clarity that comes from being fully focused on a wave.

👨‍👩‍👧‍👦

Husband & Father

Home base: Cologne. Where the really important work happens every single day.


Let's talk payments.

Whether you're navigating Instant Payments, looking for a speaker for your banking event, or simply want to exchange ideas — I'm happy to connect via LinkedIn.