Erich Wanner.
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Senior Scrum Master

Support teams in their day-to-day work, address obstacles and improve collaboration. This includes Scrum processes, support for Product Owners and coordination with the departments involved.

Freelance support for your project. Primarily working remotely from Germany and Spain, with on-site visits by arrangement.

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Project experience

05/2021–06/2026

Cloud transformation in payments

AirPlus International

Scrum Master · Delivery Lead · DevOps Manager

Phased replacement of mainframe-based payment functions with cloud microservices.

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Responsibilities & contribution

Responsibilities covered ABE, 3PP, UATP and AirPlus Intelligence during their respective assignment periods.

  • Clarify technical requirements with stakeholders, translate them into user stories and agree the specifications with the teams.
  • Address impediments, facilitate Scrum events and contribute to PI Planning.
  • Support delivery and ongoing operations, manage incidents with ServiceNow and address security vulnerabilities continuously.

Results

  • ABE, 3PP and UATP: Phased cloud migration completed; production mainframe operations within the described scope replaced by mid-2026.
  • AirPlus Intelligence: Prototype completed and initial services enabled for selected customers; responsibility subsequently handed over.

ABE – AIDA Backend

Responsibility period: 05/2021–06/2026

Processing requests from CRM and the portal, passing them to downstream systems, and managing the status of virtual and physical cards.

3PP – Third Party Processing

Responsibility period: 05/2021–06/2026

Information exchange between AirPlus and external card and processing partners.

UATP

Responsibility period: approx. 05/2021–05/2022 and 02/2025–06/2026

Phased replacement of mainframe-based communication with the UATP card system using microservices.

AirPlus Intelligence

Responsibility period: 01/2023–01/2024

New BI-based information services: capture existing functions, integrate data sources and develop additional offerings through to a prototype and initial customer enablement.

Used in the project

Planning & collaboration
Jira, Confluence, Microsoft Teams, Miro, TeamRetro
Development & operations
Jenkins, ServiceNow, Grafana, NeuVector
Cloud & data
Microsoft Azure, Kubernetes, Kafka, SQL

TeamRetro used extensively for retrospectives; CVEs reported by NeuVector incorporated into vulnerability remediation.

05/2020–12/2020

MOSAIK – ticket inspection and revenue protection

DB Vertrieb, Frankfurt am Main

Agile Business Analyst · Proxy Product Owner · Deputy Scrum Master

Structure requirements for mobile ticket inspection and revenue protection, and coordinate them across several teams; also support and stand in for Product Owners and Scrum Masters.

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Structure requirements for a mobile replacement platform for ticket inspection and revenue protection, and coordinate interfaces with mobile devices, printers and payment terminals. Support Product Owners and Scrum Masters in an organisation with multiple Scrum teams. Use Cucumber primarily for test specifications.

Used in the project

Planning & collaboration
Jira, Confluence, Microsoft Teams, Microsoft Office
Analysis & modelling
Enterprise Architect
Development & operations
Cucumber