Stefan Junk
Profile
With the finger on the pulse of science and with experiences across several business domains, a holistic integration of business and technology is mandatory for me. For high customer satisfaction I enjoy most to work closely and in direct communication with the client. I am best in a fast-paced and yet creative work culture with personal touchpoints and a high degree of personal responsibility.
Focus
- GenAI
- Coding Agents
- Hybrid/Multi-Cloud
- Strategic Advisory
- Platform Engineering
Experience
- Program/team leadership across discovery, assessment, and migration waves; aligned roadmaps, governance, and delivery plans across engineering, security, and risk
- Portfolio assessment at scale (~700 applications) with migration readiness criteria, requirements engineering, risk management, and stakeholder alignment (non-confidential, no client names)
- Modernization and migration execution for container platforms: migrated ~70 applications to AWS EKS across 4 regions, including cutover planning and operational readiness
- Landing zone design and cloud integration architecture across multi-cloud (AWS, Google Cloud, Microsoft Azure): network, identity, security baselines, and compliance controls
- Stakeholder management between cloud service providers, internal delivery teams, and client organizations; facilitated decision-making and trade-offs under regulatory constraints
- Service preparation and API design for migration to Google Cloud Platform
- Network design as Infrastructure-as-Code for hybrid cloud setup and staging environments in Amazon Web Services
- Business plan design and evaluation of the underlying assumptions, as well as refinement of the business model and the product
- Funding application resulting in 350k€ worth of public funding and a business angel
- Team formation, including recruitment of five persons: an additional co-founder, a data scientist, two developer and a marketing expert
- Development of the minimal viable product, including the design of the software architecture, the user interface, machine learning models, hosting and operation
- Design-to-cost for reliability, focusing on fault-tolerance, radiation-tolerance, disaster recovery while maintaining launch mass and inertia relevant mass.
- Requirements analysis of orbit related power and temperature cycles, as well as power demand and components lifetime were conducted.
- Responsible for the component design, prototyping, flight model production, subsystem and system testing, as well as supplier management and quality assurance
- Analysis and design optimization of high voltage (HV) power systems and components of electric cars, focusing on chargers, battery pack and HV cables.
- Analysis and design optimization of a drive Converter of a electric train, focusing on electromagnetic interferences (EMI) and misbehavior in HV components.
Certifications
Education
Electrical Engineering & Information Technology (focus: power electronics, energy storage systems, regenerative energy generation, EMC/EMI, measurement technologies, automation & building automation)
Electrical Engineering & Information Technology (focus: power electronics, control engineering, measurement technologies, EMC, industrial automation & building automation)
"Ausbildung plus Studium" program of RWE Power AG - Combined studies and apprenticeship (industrial automation, measurement & maintenance)
IT & electronics fundamentals (measurement technologies, networks, automation basics)
Early career (selected)
- Master Thesis, Siemens, Krefeld: Development of a boost converter design for the onboard power supply of trams to reduce losses and cooling demand
- Working Student, Wilo SE, Dortmund: Product Engineering for electronically controlled heating water pumps