Stanislaus Stelle - Security Consultant at Rohde & Schwarz AG

Q: Where is Stanislaus based?

Stanislaus is based in Monheim am Rhein, Germany .

Q: What languages does Stanislaus speak?

Stanislaus speaks the following languages: German (Native), Russian (Native), English (Advanced), French (Elementary) .

Q: How many years of experience does Stanislaus have?

Stanislaus has at least 15 years of experience. During this time, Stanislaus has worked in at least 18 different roles and for 4 different companies . The average length of individual experience is 1 year and 8 months . Note that Stanislaus may not have shared all experience and actually has more experience.

Q: What is Stanislaus's latest experience?

Stanislaus's most recent position is Security Consultant at Rohde & Schwarz AG at Star Labs GmbH .

Q: What companies has Stanislaus worked for in recent years?

In recent years, Stanislaus has worked for Star Labs GmbH .

Q: Which industries is Stanislaus most experienced in?

Stanislaus is most experienced in industries like Information Technology (IT) , Telecommunication , and Aerospace and Defense . Stanislaus also has some experience in Banking and Finance , Manufacturing , and Fashion and Apparel .

Q: Which business areas is Stanislaus most experienced in?

Stanislaus is most experienced in business areas like Product Development , Information Technology (IT) , and Quality Assurance (QA) . Stanislaus also has some experience in Strategy and Planning and Research and Development (R&D) .

Q: Which industries has Stanislaus worked in recently?

Stanislaus has recently worked in industries like Telecommunication , Information Technology (IT) , and Aerospace and Defense .

Q: Which business areas has Stanislaus worked in recently?

Stanislaus has recently worked in business areas like Product Development , Information Technology (IT) , and Quality Assurance (QA) .

Recommended expert

Monheim am Rhein, Germany

Experience

Dec 2023 - Present

2 years 3 months

Security Consultant at Rohde & Schwarz AG

Star Labs GmbH

Worked on FPGA enhanced network encryption device with secure boot, TPM2.0 and smart card integration for BSI approved usage with Post Quantum Cryptography
Developed and audited Linux drivers
Collaborated using GitLab, Gerrit, Confluence and Jira
Technologies: C, C++, Secure Boot

Jan 2023 - Dec 2023

1 year

Security Consultant at Miele & Cie. KG

Star Labs GmbH

Analyzed and reviewed existing processes
Conducted threat modeling and analysis, defined correction measures
Designed, implemented and rolled out PKI
Technologies: Secure Boot, Bluetooth LE

Dec 2022 - Jan 2023

2 months

Security Consultant at SICK AG

Star Labs GmbH

Analyzed and reviewed existing code
Presented plan to update architecture to state of the art security mechanics
Technologies: C, C++, Secure Boot

Jan 2022 - Nov 2022

11 months

Security Consultant at Telekom AG

Star Labs GmbH

Performed security analysis of white labeled and Yocto based router software based on RDK
Implemented Secure Boot on Broadcom chipsets using Broadcom SDK
Conducted code reviews and reported to management
Planned and implemented automated security tests in GitLab
Handled PKI with HSMs and PKCS#11
Technologies: C, C++, Yocto, Secure Boot

Aug 2021 - Dec 2021

5 months

Security Consultant and C++ Developer at IBM GmbH

Star Labs GmbH

Developed microservices in C++ for elektronische Patientenakte by Gematik
Deployed solutions on Kubernetes
Ensured security-based development to fulfill Gematik requirements
Performed low level OpenSSL development
Handled Utimaco HSM integration
Technologies: C, C++, Kubernetes, Docker

May 2021 - Dec 2021

8 months

Security Consultant at Erweka GmbH

Star Labs GmbH

Ported operating system from Ubuntu to Yocto
Implemented Secure Boot on iMX8MM
Conducted penetration testing of Secure Boot
Set up PKI
Technologies: C, C++, Yocto, Secure Boot

May 2021 - Jul 2021

3 months

C++ Developer at Rohde & Schwarz GmbH

Star Labs GmbH

Developed microservices for Docker clusters
Set up high throughput Kafka infrastructure
Worked on distributed systems
Technologies: C, C++, Conan, Kafka

Jan 2021 - Mar 2021

3 months

Security Consultant at Resado GmbH

Star Labs GmbH

Developed HSM solutions based on Yocto
Designed update strategies for high security embedded devices
Planned penetration tests for FIPS certification
Technologies: C, C++, Yocto, Bitbake, Bash

Aug 2019 - Present

6 years 7 months

Co-Founder

Star Labs GmbH

Jul 2017 - Mar 2021

3 years 9 months

Security Consultant at Telekom AG

Star Labs GmbH

Led security and development support for Smart Speaker
Conducted SoC analysis and vulnerability research
Planned and set up HSM based PKI (nCipher)
Documented security processes
Designed and implemented Secure Boot chain
Designed Linux access control and separation of concerns
Conducted code reviews in international teams
Ensured Amazon Alexa device certification security compliance
Coordinated OEM deliveries and integrated hardware security CAAM from NXP
Technologies: C, C++, Python, Ghidra, Yocto, Bitbake, Bash

Apr 2015 - Sep 2016

1 year 6 months

Lead Mobile Developer and Security Consultant at Seal One AG

Stelle-Beratung

Planned, designed and implemented Seal One apps for Android and iOS
Designed Bluetooth Low Energy protocol for fast data transmission
Analyzed BLE traffic for low level functionality
Developed microcontroller firmware on secure tokens
Technologies: IDA Pro, C, Java, ObjC, HTML, JavaScript

Apr 2014 - Mar 2015

1 year

Lead Mobile Developer and Security Consultant at nextmarkets GmbH

Stelle-Beratung

Provided consulting and training on real time data communication security
Implemented and hardened Android and iOS nextmarkets mobile apps
Advised on infrastructure and performed penetration tests
Technologies: Java, ObjC, HTML, JavaScript

Apr 2014 - Mar 2015

1 year

Lead Mobile Developer and Security Consultant at stapp GmbH

Stelle-Beratung

Prototyped and implemented a fashion and lifestyle app for Android and iOS
Provided infrastructure consulting and conducted penetration tests
Technologies: Java, ObjC, HTML, JavaScript

Sep 2013 - Dec 2013

4 months

Lead Android Developer and Security Consultant at Seal One AG

Stelle-Beratung

Consulted on secure protocols for authorization
Performed product hardening for various brands
Developed Postbank Best Sign Android component
Technologies: Java

Mar 2013 - Mar 2014

1 year 1 month

Lead Android Developer at Telekom AG

Stelle-Beratung

Implemented features and resolved bugs for Tolino eReader
Maintained white label solutions for seven partners on Google Play Store
Integrated and upstreamed the Readium SDK
Coordinated and led a nearshore team in Romania
Technologies: C++, Java

May 2012 - Jan 2013

9 months

Working Student (Master Thesis)

CASED

Developed CrowdApp Android application for multi-hop tethering based on Batman mesh protocol
Operated Android smartphone in promiscuous mode and forwarded TCP packets based on digital signatures
Designed and implemented an anonymous multi-hop tethering community platform with traceability
Published CrowdApp research paper
Technologies: C, Bash, Java

Feb 2012 - Apr 2012

3 months

Working Student

CASED

Performed Android OS penetration testing
Analyzed Broadcom Linux drivers
Extended mdk3 toolkit for IEEE 802.11 management frame injection
Technologies: C

Oct 2010 - Jan 2012

1 year 4 months

Working Student

CASED

Developed symmetric key material deployment tool for Contiki OS
Designed and implemented Java-based GUI for key generation
Implemented ZigBee and WiFi communication on low power IoT devices
Presented research at ARES 2012
Technologies: C, Java

Mar 2010 - May 2010

3 months

Working Student (Bachelor Thesis)

SAP AG

Conceptualized, analyzed and developed UI/UX operations
Invented and prototyped a new drag & drop concept for group activities on wall-sized displays
Conducted A/B testing and scientific evaluation of findings
Technologies: C#

Jun 2009 - Sep 2009

4 months

Working Student (Research Internship)

SAP AG

Ensured fraud assurance in service oriented business applications
Contributed to TEXO research project Maestro
Implemented segregation of duty and four eye principle in workflows
Technologies: Java

Jan 2009 - Mar 2009

3 months

Working Student (Research Internship)

SAP AG

Monitored networks with Nagios 3
Aggregated server information with phpEquimon for administration
Developed open source Nagios SAP CCMS plugin
Technologies: C, Bash, XML, PHP

Aug 2008 - Sep 2008

2 months

Working Student (Research Internship)

SAP AG

Analyzed and prototyped Joint Common Operational Picture for NATO
Collaborated with NATO NC3O research facility
Aggregated data from SOAP web services
Technologies: Java, ABAP, SOA

Oct 2007 - Dec 2007

3 months

Working Student (Research Internship)

SAP AG

Developed tests for J2EE-based SAP ERP deployment server
Extended functionality and optimized performance hotspots
Technologies: J2EE, Perforce

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (12.5 years), Telecommunication (8 years), Aerospace and Defense (2 years), Manufacturing (1 year), Banking and Finance (1 year), and Fashion (1 year).

Information Technology

Telecommunication

Aerospace and Defense

Manufacturing

Banking and Finance

Fashion

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Product Development (14.5 years), Information Technology (14 years), Quality Assurance (7.5 years), Strategy (6.5 years), and Research and Development (3 years).

Product Development

Information Technology

Quality Assurance

Strategy

Research and Development

Summary

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.

Skills

Security: Pki, Thales Hsms, Yubihsm2, Nitrokey Hsm, X509, Security Architectures, Protool Design, Secure Boot Chains, Metasploit, Nmap, Injections
Operating Systems: Linux, Windows, Macos, Android, Ios, Contiki
Programming Languages: C/c++, Python, Shell-script, Java (Android + J2ee), Objc, Javascript, Assembler (X86, X86 64, Arm)
Meta-languages/services: Json, Xml + Xsd, Xslt, Soap, Rest
Methodologies: Scrum, Kanban, Safe, Uml, Rapid Prototyping, Extreme Programming
Database Systems: Mysql, Sqlite, Postgresql
Release Management Systems: Git, Subversion, Cvs, Perforce
Continuous Integration: Jenkins, Gitlab Ci, Ant, Maven
Telecommunication: 868mhz Technology (Zigbee)
Telecommunication: 2,4ghz Technology (Wifi, Bt, Ble, Zigbee)

Languages

German

Native

Russian

Native

English

Advanced

French

Elementary

Education

Oct 2010 - Sep 2013

TU Darmstadt

Master, IT Security · IT Security · Darmstadt, Germany

Oct 2007 - Sep 2010

DHBW Karlsruhe

Bachelor, Applied IT · Applied IT · Karlsruhe, Germany

Certifications & licenses

CEH

CISSP

Machine Learning

Profile

Created

April 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Stanislaus based?

Stanislaus is based in Monheim am Rhein, Germany.

What languages does Stanislaus speak?

Stanislaus speaks the following languages: German (Native), Russian (Native), English (Advanced), French (Elementary).

How many years of experience does Stanislaus have?

Stanislaus has at least 15 years of experience. During this time, Stanislaus has worked in at least 18 different roles and for 4 different companies. The average length of individual experience is 1 year and 8 months. Note that Stanislaus may not have shared all experience and actually has more experience.

What roles would Stanislaus be best suited for?

Based on recent experience, Stanislaus would be well-suited for roles such as: Security Consultant at Rohde & Schwarz AG, Security Consultant at Miele & Cie. KG, Security Consultant at SICK AG.

What is Stanislaus's latest experience?

Stanislaus's most recent position is Security Consultant at Rohde & Schwarz AG at Star Labs GmbH.

What companies has Stanislaus worked for in recent years?

In recent years, Stanislaus has worked for Star Labs GmbH.

Which industries is Stanislaus most experienced in?

Stanislaus is most experienced in industries like Information Technology (IT), Telecommunication, and Aerospace and Defense. Stanislaus also has some experience in Banking and Finance, Manufacturing, and Fashion and Apparel.

Which business areas is Stanislaus most experienced in?

Stanislaus is most experienced in business areas like Product Development, Information Technology (IT), and Quality Assurance (QA). Stanislaus also has some experience in Strategy and Planning and Research and Development (R&D).

Which industries has Stanislaus worked in recently?

Stanislaus has recently worked in industries like Telecommunication, Information Technology (IT), and Aerospace and Defense.

Which business areas has Stanislaus worked in recently?

Stanislaus has recently worked in business areas like Product Development, Information Technology (IT), and Quality Assurance (QA).

What is Stanislaus's education?

Stanislaus holds a Master in IT Security from TU Darmstadt and a Bachelor in Applied IT from DHBW Karlsruhe.

Does Stanislaus have any certificates?

Stanislaus has 3 certificates. These include: CEH, CISSP, and Machine Learning.

What is the availability of Stanislaus?

Stanislaus is immediately available for suitable projects.

What is the rate of Stanislaus?

Stanislaus's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.