Stanislaus Stelle
Security Consultant
Experience
Security Consultant
Rohde & Schwarz AG
Work on FPGA enhanced network encryption device with secure boot, TPM2.0 and smart card integration for BSI approved usage with post quantum cryptography
Linux driver development and audits
Collaboration with GitLab, Gerrit, Confluence and Jira
C, C++, secure boot
Security Consultant
Miele & Cie. KG
Analysis and review of existing processes
Threat modeling of processes
Threat analysis and correction measures
Design, implement and rollout PKI
Secure boot, Bluetooth LE
Security Consultant
SICK AG
Analysis and review of existing code
Present plan to update architecture to state of the art security mechanics
C, C++, secure boot
Security Consultant
Telekom AG
Security analysis of white labeled and Yocto based router software based on RDK
Secure boot on Broadcom chipsets based on Broadcom SDK
Code review and reporting to management
Planning and implementation of automated security tests in GitLab
PKI handling with HSMs and PKCS#11
C, C++, Yocto, secure boot
Security Consultant and C++ Developer
IBM GmbH
Microservice development in C++ for „elektronische Patientenakte“ by Gematik
Kubernetes deployments
Security based development to fulfill Gematik requirements
Low level OpenSSL development
Utimaco HSM handling
C, C++, Kubernetes, Docker
Security Consultant
Erweka GmbH
Operating system port from Ubuntu to Yocto
Secure boot on iMX8MM
Penetration testing of secure boot
PKI setup
C, C++, Yocto, secure boot
C++ Developer
Rohde & Schwarz GmbH
Microservices for Docker cluster
High throughput Kafka setup
Distributed systems
C, C++, conan, Kafka
Security Consultant
Resado GmbH
HSM development based on Yocto
Development of update strategies for high security embedded devices
Penetration test planning for FIPS certification
C, C++, Yocto, Bitbake and Bash
Security Consultant
Telekom AG
Security lead and development support for the smart speaker
SoC analysis and vulnerability research
Planning and setup of HSM based PKI (ncipher)
Documentation of processes
Design and implementation of secure boot chain
Design of Linux access control and enforcement of separation of concerns
Code reviews in international teams
Amazon Alexa device certification security compliance
Coordination, planning and review of OEM deliveries
Hardware security integration of the CAAM from NXP
C, C++, Python, Ghidra, Yocto, Bitbake and Bash
Lead Mobile Developer and Security Consultant
Seal One AG
Planned, designed and implemented the Seal One apps for Android and iOS
Designed the Bluetooth Low Energy protocol for fast data transmission in use
Analyzed Bluetooth Low Energy traffic to determine proper functionality on low level
Microcontroller development on secure tokens
IDA Pro, C, Java, ObjC, HTML and Javascript
Lead Mobile Developer and Security Consultant
nextmarkets GmbH
Consulting and training on security matters regarding real time data communication
Implementing and hardening of the nextmarkets mobile app for Android and iOS
Consulting on the infrastructure in place and performing penetration tests
Java, ObjC, HTML and Javascript
Lead Mobile Developer and Security Consultant
stapp GmbH
Prototyped and implemented a fashion and lifestyle app for Android and iOS
Consulting on the infrastructure in place and performing penetration tests
Java, ObjC, HTML and Javascript
Lead Android Developer and Security Consultant
Seal One AG
Consulting on secure protocols for authorization
Hardening for a variety of brands
Development of the Best Sign Android component for Postbank
Java
Lead Android Developer
Telekom AG
Implementing features and resolving bugs for the Tolino eReader
Maintaining a white label solution for 7 partners on the Google Play store
Integrating and upstreaming of the Readium SDK
Coordinating and leading a near shore team in Romania
C++ and Java
Master Thesis
CASED
Developed CrowdApp, an Android application for multi hop tethering based on the Batman mesh protocol
Operated an Android smartphone on promiscuous mode and forwarded TCP packets based on digital signatures
Designed and implemented an anonymous multi hop tethering community platform which can be traced in case of misuse
Published CrowdApp - Secure Mobile Ad-Hoc Resource Sharing on Android: Sharing internet connections mobile with multi hop technology
C, Bash and Java
Working Student
CASED
Android OS penetration testing
Broadcom Linux driver analysis
mdk3 toolkit extension for IEEE 802.11 management frame injection
C
Working Student
CASED
Development of a symmetric key material deployment tool for the Contiki operating system
Planning, designing and implementing of a Java based GUI for symmetric key generation
ZigBee and WiFi communication implementation on low power IoT devices
Presenting the findings and research results at ARES 2012
C and Java
Bachelor Thesis
SAP AG
Concept, analysis and development of UI/UX operations
Invent and prototype a new drag&drop concept for group activities on wall sized displays
Perform A/B testing with leading interaction paradigms and own prototype as well as scientific evaluation of findings
C#
Research Internship with EU Research Project Texo
SAP AG
Fraud assurance in service oriented business applications
Contributions to the TEXO research project Maestro
Ensured segregation of duty for the participating entities (four eye principle in sensitive tasks)
Java
Research Internship with Linux Lab
SAP AG
Network monitoring with Nagios 3
Aggregating server information with phpEquimon to ease administration
Development of the open source Nagios SAP CCMS plugin
C, Bash, XML and PHP
Research Internship with Defense
SAP AG
Analysis and prototyping of joint common operational picture for NATO
Close cooperation with NATO‘s NC3O research facility
Aggregating data from SOAP based web services
Java, ABAP and SOA paradigm
Research Internship with Deployment
SAP AG
Writing tests for J2EE based automated SAP ERP deployment server
Extending functionality and optimizing hotspots
J2EE and Perforce
Summary
Languages
Education
TU Darmstadt
M.Sc. · IT Security · Darmstadt, Germany
DHBW
B.Sc. · Applied IT · Karlsruhe, Germany
Certifications & licenses
CEH
CISSP
Machine Learning
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