Roland R. - Freelance Consultant for Functional Safety & Embedded Software

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Vierkirchen, Germany

Experience

Jan 2024 - Jun 2024

6 months

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Automotive Supplier

Transferring requirements into other database systems
Structuring requirements
Assessing completeness, including creating new test cases based on a use-case-based test strategy and internal traceability matrices
Partially automating tasks within a requirement assessment tool
Languages/Tools: MS Teams, reqIF, Enterprise Architect, Codebeamer, proprietary tools for generating and evaluating traceability matrices

Mar 2023 - Jun 2023

4 months

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Maximator-Hydrogen

Supporting the expansion of safety processes
Coordinating safety standards (DIN EN 61508, DIN EN 61511, VDI 2180)
Developing formulas for (in)homogeneous redundant MooN architectures for SIL-dependent PFD calculation
SIL reduction and tool qualification
Collaborating with RAMS management
Languages/Tools: MS Teams, Visio, MindManager, Functional Safety Suite, proprietary tools

Jul 2022 - Dec 2022

6 months

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TTTech-Auto (on behalf of Sthree / Computer Future)

Conducting FMEA and DFA
Supporting concept development for an autonomous driving platform (SAE Level 4)
Performing various analyses (Markov chains, Goal Structure Notation)
Addressing cybersecurity requirements
Languages/Tools: MS Teams, Confluence, Enterprise Architect, PRISM, GitHub, proprietary tools

Mar 2022 - Jul 2022

5 months

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Bosch

Performing requirement assessments
Creating and reviewing a safety manual for a computing platform (SEooC)
Conducting risk assessments during implementation
Developing a DFA template
Updating the safety manual in collaboration with functional safety team
Languages/Tools: MS Teams, DOORS (Jazz), GitHub, proprietary tools

Sep 2021 - Jan 2022

5 months

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FEV / EVA Fahrzeugtechnik

Conducting impact analysis and creating all work products
Preparing verification and validation plans, safety case updates, and safety arguments
Comparing homologation tests (UN ECE R100), transport standard UN 38.3, GB 38031:2020
Developing appropriate test plans
Languages/Tools: MS Teams, DOORS, Confluence, Tortoise, GitHub, cell simulation, fault tree and event tree analysis

Nov 2020 - Dec 2021

1 year 2 months

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TTTech, Vienna

Participation in reviews
Conducting Design FMEA and Process FMEA according to VDA guidelines
Confirmation reviews of FMEAs
Support for safety management
Considering security in FMEAs and deriving requirements
Languages/Tools: MS Teams, Windchill PTS, Confluence, Collaborator

Jan 2019 - Oct 2020

1 year 10 months

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Center for Autonomous Driving, Unterschleißheim (BMW)

Semi-automation of software safety analyses (extraction of common cause initiators)
Development of a SOTIF scenario generator (prototype)
Python scripting for software analysis and DFA result management
Identifying residual risks in adaptive AUTOSAR
Languages/Tools: Python, JSON, MagicDraw, Bazel, proprietary simulator and SOTIF tools

Apr 2017 - Dec 2018

1 year 9 months

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Autoliv/Veoneer

Coordination of work products for functional safety according to ISO 26262
Performing FMEA and coordinating distributed development (Sweden, Germany)
Creating safety plans and a functional safety concept
Item definition and safety concept for SAE Level 3 autonomous driving
Languages/Tools: Telelogic DOORS, proprietary GSN editor tool, Enterprise Architect, JIRA

Jan 2017 - Apr 2017

4 months

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South German automotive supplier

Creating safety plan and development interface agreement (DIA) with OEM
Coordinating safety activities in the project plan
Working out the deltas between ASPICE and ISO 26262
Languages/Tools: Polarion, Mind Map, Microsoft Project

Oct 2015 - Dec 2016

1 year 3 months

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Thyssen Krupp

Coordination of functional safety according to ISO 26262 for steering power assist systems
Conducting hazard analysis and risk assessment (steering assistance ASIL D, parking function, steering angle ASIL B)
Creating safety plans and a functional safety concept
Languages/Tools: Telelogic DOORS, proprietary GSN editor tool, IBM Change, Enterprise Architect

Mar 2014 - Sep 2015

1 year 7 months

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Porsche Engineering and Porsche AG

Development of a functional safety concept (ISO 26262) for the power distribution system and 7.2 kW on-board charger
Conducting hazard and risk assessment (G&R), preparing and contributing to FMEA and FTA
Defining safety goals
Languages/Tools: Telelogic DOORS, Dimensions, APIS Software, proprietary GSN editor tool

May 2011 - Feb 2012

10 months

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Webasto

HARA and risk analysis according to ISO 26262
Development of a concept for electrical safety and insulation coordination according to ISO 6469-3, 60664-X
Deriving requirements and supporting software development (ASIL B)
Development of a tool for processing HARA deltas
Languages/Tools: Excel-based macros, Keil/µVision, Serena PVCS, PRQA, Rhapsody, DOORS, MindManager, CANape

Aug 2010 - May 2011

10 months

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TÜV SÜD automotive

Evaluating concepts and charging devices for standards compliance and electrical safety (ISO 60664, EN 6469, IEC 61851, IEC 61508, IEC 26262)
Sizing HV insulation coordination
Contributing to test plan creation for the TÜV SÜD quality seal
Languages/Tools: FMEA programs, Office tools, MindManager

May 2009 - Mar 2010

11 months

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Litec Battery GmbH

Development of a BMS for lithium-ion batteries (HW+SW)
Building a battery simulator with aging and thermal model, balancing and power prediction
Optimizing active cell balancing
HiL BMS test system development
Supervising a thesis
Languages/Tools: Infineon 164 XE, XC2267, XC888, LabVIEW, MATLAB, MS Office

Apr 2007 - Jul 2007

4 months

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SVDO

Prototyping supercapacitor and Li-ion HV batteries
Developing a balancing methodology for supercapacitors
Developing self-discharge and aging models
Building simulators for supercapacitor and Li-ion storage systems
Languages/Tools: LabVIEW, MS Office

Oct 2005 - Feb 2006

5 months

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Conti/Temic

C programming for airbag control unit according to the V-model
Creating requirement test specifications and carrying out the tests
Participating in code reviews
Languages/Tools: IAR, C, MISRA, EasyCase, PVCS, TestTrackPro

Mar 2005 - Sep 2005

7 months

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Leica Microsystems

Firmware development for Quasar confocal microscope (CAN bus control)
Expanding verification tests on a C# test bench
Troubleshooting image transfer from FPGA to EZUSB on Windows XP
Languages/Tools: Visual Studio C#, Keil uVision, Cypress EZ-USB FX2, CAN controller, PCAN View

Jul 2004 - Sep 2004

3 months

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mikron AG

Developing a Windows 2000 demo software for an ASIC level indicator
Creating a WINAPI application for analysis, verification and demo
Implementing workarounds for chip bugs
Languages/Tools: WINAPI, MS Visual C/C++, Xilinx FPGA, OneWire

Nov 2002 - Jun 2003

8 months

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microtec GmbH Stuttgart

Developing a production test program for ASIC production testing (DUO 176-S)
Implementing an 8051 assembler program for bandpass trim routine and A/D characterization
Calculating the temperature guard band
Languages/Tools: GCC, GNU tools, 8051 assembler

Jan 1993 - Dec 2003

11 years

Hybrid

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Batterie-Systeme

Developing microcontroller-based BMS for hybrid buses (CAN, SMBus)
Developing a Battery Development & Test System (16-bit measurements, VGA graphics)
Driver software for production test devices (SMBus communication)
Firmware for Accuron Smart Battery (bootloader, EEPROM/EPROM)
Developing battery remaining time algorithms for mobile phones with a learning algorithm

Jan 1981 - Dec 2003

23 years

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CAD/CAM Tools

Developed a mixed-mode logic simulator (assembler, later C)
Implemented a graphical interface for the logic simulator
Developed a fault simulator and test pattern generator
Added autorouting features to PCB layout software
Created a tool database and SQL Forms solutions for BMW
Contributed to a real-time driving simulator for BMW

Summary

Senior expert in low-level software development, functional safety, and battery management with over 40 years of experience in challenging technology projects. Roland Rathmann combines deep understanding of physics with strong analytical skills and a practical, hands-on approach. As a long-time freelance consultant and developer of complex technical solutions, he helps OEMs, suppliers, and testing organizations design, validate, and release safety-critical systems – including autonomous driving, high-voltage technology, and battery management. He has extensive knowledge of safety standards (ISO 26262, ISO 61508, SOTIF), develops his own tools for requirements management, and has filed and received several patents in battery technology.