Profileimage by Stanislaus Stelle Security Architect and Developer from Kuenzell

Stanislaus Stelle

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Last update: 14.08.2023

Security Architect and Developer

Graduation: Master of Science in IT Security from TU Darmstadt
Hourly-/Daily rates: show
Languages: German (Native or Bilingual) | English (Full Professional) | French (Elementary) | Russian (Full Professional)

Attachments

cv-stas-stelle-deutsch-2023_140823.docx

Skills

Before finishing his studies, Mr Stelle was involved in numerous international client projects while working for SAP. After graduating from TU Darmstadt with a Master in IT Security and a strong focus on Mobile Security, he was working as an IT freelancer since 2013, refining his expertise in a broad field ranging from mobile development, protocol design, hardening schemes for IoT devices and servers alike and client development work. All the while covering either the role of a Security Architect, Technical Lead, System Architect or Lead Developer. Clients trust him to finish the job while using up to date technologies and methodologies and coordinating work with internal and external work forces.

PKI, X509, Security Architectures, Protool Design, Secure Boot Chains, Metasploit, nmap, Injections, Linux, Windows, MacOS, Android, iOS, Contiki, Programming, C, C++, Python, Shell-Script, Java, Android + J2EE, ObjC, Javascript, Assembler (x86, x86_64, ARM), Meta-Languages/Services, JSON, XML + XSD, XSLT, SOAP, REST, SCRUM, Kanban, SAFe, UML, Rapid Prototyping, Extreme Programming, Database, MySQL, SQLite, PostgreSQL, Release Management, Git, Subversion, CVS, Perforce, Continuous Integration, Jenkins, Gitlab CI, Ant, Maven, Machine Learning, CEH, CISSP, SAP, Telecommunication, ZigBee, WiFi, BLE

Project history

07/2019 - Present
Security Consultant and Architect
Telekom (Telecommunications, >10.000 employees)

Security Lead and development support for the Smart Speaker

SoC analysis and vulnerability research

Planning and Setup of HSM based PKI

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


04/2015 - 09/2016
Lead Mobile Developer and Security Consultant
Seal One AG (Internet and Information Technology, 10-50 employees)

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


04/2014 - 03/2015
Lead Mobile Developer and Security Consultant
nextmarkets GmbH (Banks and financial services, 10-50 employees)

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


03/2013 - 03/2014
Lead Android Developer
Telekom (Internet and Information Technology, >10.000 employees)

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


09/2013 - 12/2013
Lead Android Developer and Security Consultant
Seal One AG (Internet and Information Technology, 10-50 employees)

Consulting on secure protocols for authorization

Hardening for a variety of brands

Development of the Best Sign Android component for Postbank

Java


Certifications

CISP
ISC2
2019
CEH
EC Council
2017

Local Availability

Open to travel worldwide
The further I should travel the more remote work should be possible so that I do not live in Hotels 24/7.
Profileimage by Stanislaus Stelle Security Architect and Developer from Kuenzell Security Architect and Developer
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