About Stefan
Full-stack Web & SAP Developer with 9+ years of enterprise experience
I bring strong technical expertise from two worlds: eight years in SAP development, consulting, and integration, plus hands-on leadership experience as CTO and Managing Director of an AI startup.
English
Native or bilingual
German
Native or bilingual
Can work on-site
Bielefeld (up to 50km)
Experience
- QUNEVOFounderJune 2024 - Today (2 years and 1 month)North Rhine-Westphalia, GermanyBuilt a production-grade, workflow-heavy web productfrom concept to deployment. Owned architecture decisions, UI interaction patterns, data model, anditerative rollout. Focus on performance, reliability, and maintainable engineering standards.
- NTT DATA Business SolutionsSenior SAP Technical ConsultantJanuary 2022 - May 2024 (2 years and 4 months)Zürich, SwitzerlandSenior Software Architect for a nationwide platform withhigh reliability requirements. Close alignment with multiple stakeholders and platform/securityconstraints; designed robust, scalable application architecture.
- DeloitteSenior SAP Technical ConsultantOctober 2019 - November 2021 (2 years and 1 month)Munich, GermanyWorked on enterprise frontend standards and system-facing UIs.Implemented reusable UI patterns, integrated frontend apps with backend services, and contributed toarchitecture decisions.
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Education
- EF SET Certificate SAP Certified Development Associate - SAP Fiori Application DeveloperEF SET Certificate SAP Certified Development Associate - SAP Fiori Application Developer
- Bachelor of Science - BSFachhochschule Bielefeld2016Bachelor of Science - BS