Sven Rummel - Embedded Software Developer, Test Automation

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Bremen, Germany

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Experience

Sep 2024 - May 2025

9 months

Software Developer - Building Automation

Test controller unit
Implement test environment
Implement virtual nodes
Commission CANopen network
Define and automate test cases
Design and implement LSS state machine
Implement data exchange between tools
Port requirements to vTestStudio in XML format
Products: CANoe, vTestStudio, Playwright, Cypress, Robot, .NET
Knowledge: CAPL, C++, CANopen, concept development, Python, JavaScript, XML, C#

Dec 2023 - Aug 2024

9 months

Software Developer - IoT Software Development and Cybersecurity Testing

Preprocess & store sensor values
Program display/configuration of physical quantities
Transfer quantities to Profinet bus and AWS Cloud
Penetration & security testing for IoT layer
Products: Raspberry Pi, Visual Studio Code
Knowledge: C/C++, Profinet, GDB Debugger, AWS Cloud

Jul 2022 - Nov 2023

1 year 5 months

Developer - Combined Heat and Power Plant Test Automation

Design HIL test bench
Combined heat and power plant control unit as device under test
Black-box testing via the CAN channels
Software function testing in the SW/HW combination
Determine & evaluate tools
Commission system consisting of a real master and virtual slaves
Build user interface for display & control
Program operating scenarios
Control web user interface of vTestStudio/CANoe
Import requirements into vTestStudio in XML format
Test automation with test cases for various scenarios
Products: Blockheizkraftwerk, CANoe, vTestStudio, MATLAB, Simulink, Speedgoat, Playwright, Cypress, Robot, .NET
Knowledge: CANopen bus, CAPL, BHKW ECU, vTestStudio, Speedgoat, TCP - MQTT, vCDL, C++, Python, JavaScript, XML, C#

Apr 2022 - Jun 2022

3 months

Evaluator/Tester - Test Tool Acceptance

Evaluate MIL/SIL test environment
Commission toolchain & suppliers' SUT
Prepare integrated product test
Check/adapt/verify test configuration
Check Simulink & TargetLink chain
Draw conclusions from MIL/SIL test comparison and scaling
Check code coverage and add test cases if necessary
Reference: Toolchain documentation & practical test
Products: Headlights
Knowledge: Matlab/Simulink, TargetLink, TPT

Feb 2022 - Jul 2022

6 months

Requirements Engineer - Deriving Software Requirements from the System

Qualify system requirements for software
Divide into features
Conduct regular reviews
Formulate requirements clearly & unambiguously in English
Products: BMS
Knowledge: MS Office

Jan 2022 - Apr 2022

4 months

Software Developer - Driver Development for Infineon Aurix Hardware

Migrated 2xx to 3xx generation
ADC driver development
Applied new functions instead of obsolete ones
Testing on the evaluation board & with debugger
Considered customer & Infineon standards
Agile exchange with driver developers
Reference: Infineon documentation and 2xx source code
Products: Motor control ECU
Skills: C language, Lauterbach Debugger, Tasking Compiler, Infineon Aurix 3xx, Cmake, Batch, Git & SVN, RDP & Citrix

Sep 2021 - Dec 2021

4 months

Design & Implementation of Laboratory Cabinet

Infotainment devices were to be tested in the laboratory
Installed all devices with suitable distribution and sufficient ventilation
Designed cable routing with automotive wiring harness
Designed panel with interfaces & switches
Installed displays & audio playback
Verified and documented cable routing
Products: MS Office, Panel Designer, Autocad

Nov 2020 - Aug 2021

10 months

Software Developer - Headset Automation Framework Development

Sennheiser

Designed & developed a Bluetooth certification framework
SIG Bluetooth certification
Automated Profile Tuning Suite with Python framework
Automated dialog with SIG API
Report & log output
Qualcomm Debugger for headset control
Azure DevOps integration
Concept creation & documentation
Products: Python, Git, Azure DevOps, Visual Studio, PyCharm, Qualcomm library, SIG
Skills: Scrum, DevOps, Bluetooth

Jul 2020 - Oct 2020

4 months

Tester - Wind Turbine Test Design

Nordex

Designed model-based HIL tests and debugged results
Created sequence diagrams
Added test specifications to Jira
Applied library components in the sequence
Test execution on the HIL control unit & wind turbine simulation
Evaluated results and passed them on to developers/author
Goal: High test coverage before the official release, confirmation or modification of the design
Products: EXAM, Atlassian JIRA, Winmod

Aug 2019 - Jun 2020

11 months

Sailauf, Germany

Project Manager - Navigation Camera Test Management

Magna

Managed testing and took over the platform migration
Coordination with internal customers
Created reports at release and in between
Test organization: resource planning, external commissioning, division into preparation and execution phases, monitoring progress of results
Defect management: result verification, root-cause assignment with other teams, bug fix testing
Review management: initiating and participating, checking completeness and compliance with processes
Process management: checking & instructing on process compliance, developing & adapting, proposing improvements
Platform management: transferring documents to the new platform, monitoring intermediate steps, establishing new procedures
Tool management: ensuring availability, designing improvements, commissioning external company
Products: PTC Integrity, MS Project, LabVIEW, AutomationDesk, ECU and 4/2 camera system
Skills: Managing tasks, resources and processes, testing camera systems

Jan 2019 - Jul 2019

7 months

Lörrach, Germany

Software Developer - PLC Programming and Test Environment Setup

Rotzler

Programmed crane winch: programmed display and control with PLC, applied CoDeSys ST & KOP, validated on the test bench, adapted functions according to requirements
Set up virtual test environment: evaluated and developed test environment, used CANopen with SDO/PDO communication, applied hardware manufacturer library with Python, individual tests with automated test case input & result output
Products: CANoe, CoDeSys, Peak PCAN Adapter
Skills: PLC, J1939, CANopen, C/C++, CoDeSys, Python

Jun 2018 - Dec 2018

7 months

Kassel, Germany

SW Developer - Transmission Test Bench Development

Kleinknecht

Designed & developed a Restbus simulation & documentation module
Generic approach and improved maintainability
Module integration and test bench measurement evaluation
Designed & implemented a report module
GUI design
Measurement data compilation with adjustable parameters
Word output based on a template
Products: LabView, CANoe, SVN

Oct 2017 - May 2018

8 months

Berlin, Germany

Project Manager - Battery Management Lead

Embeddeers / Marquardt

Took over development & test leadership with customer communication in an Autosar Safety project
Battery management system consisting of 3 control units
Responsible for BMC control unit, consisting of application, basic software, RTE and flash bootloader
Communicated requirements & status with customers and suppliers
Project planning and presentations
Assigned tasks & provided guidance
Took on subtasks
Tool management & handling
Products: Simulink, TragetLink, C, Redmine, SVN, DaVinci, AUTOSAR, CANoe, Lauterbach Debugger, Dimensions, Share-Point, Green Hills Compiler, Enterprise Architekt, Microsar, CandelaStudio, vFlash
Skills: Power electronics

Jan 2017 - Sep 2017

9 months

Cologne, Germany

Adaptive High-Beam Demonstrator Pre-Development

Varroc-Lighting

Designed & developed adaptive automotive low beam
Demonstrator setup with Microautobox
Architecture in UML
Introduction of prototyping
Defined requirements/constraints
Headlight control with CANoe Restbus simulation
Algorithm design in Simulink/S-Function
Demonstration with headlight, Microautobox and PC
Camera/headlight simulation
CAPL programming, DBC editing
CAN/LIN control
Transferred Labview logic to Simulink
Prepared camera data
Products: Microautobox, Controldesk, Simulink/MATLAB, CANoe, MobilEye, CAPL
Skills: S-function, DBC, CAN, LIN, CANCase, Labview, RTC

Jan 2017 - Aug 2017

8 months

Bühl, Germany

Transmission Code Coverage Concept Development

LuK / Schäffler

Developed & implemented a code coverage concept for the control unit
Integrated code coverage into the build process
Target code instrumentation
CTC-Tool commissioning
Adapted INI file to compiler/other settings
Build with modified Make file
Adapted A2L file for XCP evaluation
HIL measurement and measurement data post-processing
Coverage report identifying weaknesses
Applied to various compiler environments
Integrated into the company process and provided training
Products: CTC, MKS, INCA, MATLAB, Tricore/Tasking Compiler, C, XCP, A2L, HIL
Skills: gnuMake, Perl

Jul 2016 - Dec 2016

6 months

Bühl, Germany

Function Developer - Developing E-Motor Field-Oriented Control

LuK / Schäffler

Developed observers and tests for FOC control
Extended jerk control
MIL/SIL testing of field-oriented PMSM motor control
Generalized observer design with wheel speed estimation
Developer testing with powertrain model and standardization
Tool evaluation for functional and coverage testing
Requirement/design documentation created through reverse engineering
Methods: Luenberger/PI/UI/optimal observers, Kalman filter, state controller /field-oriented/PMSM/induction motor/optimal/LQR
Products: MATLAB, Stateflow, dSpace TargetLink, Data Dictionary, Simulink Validation & Verification /Test, TPT, PTC Integrity
Knowledge: control engineering, field-oriented control, PWM control, power electronics

Jan 2016 - May 2016

5 months

Lörrach, Germany

Software Developer and Tester - PLC Programming for Crane Control

Rotzler

Developed operation and display with CoDeSys
Set up monitoring and diagnostic functions
Validated crane winch control with joystick and touchscreen on the test bench
Implemented customer requirements
Products: CoDeSys, Prosyd, CANExplorer
Knowledge: PLC, J1939, CANopen, C/C++, CoDeSys

Aug 2015 - Dec 2015

5 months

Waldkirch, Germany

Pre-Development of Light Barrier Demonstrator

Sick

Designed and developed a light barrier control unit
Demonstrator development for light barrier operation
Driver development for various demonstrators
Implemented menu navigation with button operation
Developed menu components
Evaluated graphics tools
Configured Jenkins server and adapted scripts for automated QAC checks
Generalized batch file for client operation
Tools: STM Cortex, ARM processor, C, SPI, IAR IDE, demo board, OLED graphics driver, QAC, Jenkins, QAW, Command-Line

Jul 2015 - Dec 2015

6 months

Munich, Germany

Developing Control for Placement Machine

ASM

Developed synchronous motor feedforward control with position specification
Modified software for a new placement machine project
Set up and extended trace functionality for real-time data acquisition
Real-time verification and optimization
Generated motion profiles and adapted generation scripts
Extended the structure for an additional motor control
Tools: C, Eclipse, Matlab/Simulink, CACCIA, oscilloscope/logic analyzer, Clearcase
Knowledge: control engineering, field-oriented control, PWM control, power electronics

Dec 2014 - Jul 2015

8 months

Mannheim, Germany

Developing Electric Bus Specification

Bombardier

Designed E-bus specification for several test levels
Created specification for a central control unit developed using a model-based approach
Reviewed and continued the specification
Created test specification with the help of the requirements specification and implemented it
Process implementation: test specification template, model linking and test report
Tool evaluation: report generator tool, TpT configuration
Design specification: extended with implementation models
Analysis and simulation of problem scenarios
Tools: Matlab/Simulink, FuSi, report generator, Doors, TpT, CANoe, Office

Sep 2012 - May 2014

1 year 9 months

Gilching, Germany

Evaluating SPICE Process Tools

Webasto

Evaluated the IBM tool family with platform introduction
Evaluated and advised on the introduction of model-based tools
Assessed the existing tool landscape
Checked tool consistency throughout the V-model
Evaluated testing tools – design import (model and C code)
Model-based test environment
Linking and coverage with design and requirements
Test hardware connection via API
Presentations and training
System engineering tool evaluation: requirement implementation, architecture with UML diagrams, simulation and handover to software design
Software design tool evaluation: model-based development, simulation and connection to external tools, C code integration in a UML environment, reverse engineering for documentation, code generation through a framework
Tools: IBM Rhapsody, Test-Conductor, Rational Team Concert (RTC), Design-Manager, Rational Gateway, RQM, C/C++, Eclipse, Cygwin, CANoe, PVCS, Doors, QAC, SAP, Oscilloscope, Doxygen, TPT, iSystem, CANape, Model Examiner (MXAM), Matlab/Simulink

May 2011 - Aug 2012

1 year 4 months

Munich, Germany

Developing Engine Safety Functions

BMW

Developed model-based safety functions
Implemented functional and safety requirements in the model
MIL simulation and testing
Acceptance testing on HiL and in the vehicle
Project coordination and coordination with suppliers
Contributed to defining requirements and developing new process structures
Tools: Matlab/Simulink/Stateflow, INCA, C, MS-Office, Visio, HiL, Doors, SVN, FuSi, ISO26262, Ascent, dSpace, Micronova, ControlDesk, LabView, ECU-Test, TpT, ADD, Tessy, Oscilloscope

Dec 2009 - Apr 2011

1 year 5 months

Sailauf, Germany

Developing Engine Block Airbag Simulation

Magna

Developed a simulation for engine block airbag log data
Developed a simulation environment for measurement data analysis
Module and integration testing of series software
Adapted the simulation environment to new test criteria and products
Optimized user interfaces
Extended API documentation interfaces
Set up and configured a software test environment
Prepared, performed and documented test specifications
Training and presentations
Evaluated testing tools
Tools: Matlab/Simulink, Tessy, C/C++, Enterprise Architect, MKS, Polyspace, Visual-Basic

Apr 2007 - Nov 2009

2 years 8 months

Developing an All-Wheel-Drive Vehicle Demonstrator

ZF

Developed transmission control with test drives
Developed functions for all-wheel-drive prototypes
Adapted the model to the demonstration vehicles
Commissioned the system on the workbench and demonstration vehicles
Evaluated tool chains – merging the pre-development and series-development paths
Tools: MATLAB/Simulink, Controldesk, dSpace Autobox, CANalyzer/CANape, Real-Time Workshop (Simulink Coder), Inca, MS-Office, Intecrio, ETAS ES910, Targetlink, Embedded Coder Prodrive, ClearCase

Feb 2006 - Mar 2007

1 year 2 months

Automating All-Wheel-Drive Vehicle Testing

Audi

Evaluated and designed model-based tests
Software testing of Quatrosport torque control modules
Integrated hand-coded software into a model-based test environment
Prepared and performed test specifications in MIL/SIL/PIL
Evaluated tools and validated processes
Tools: MATLAB/Simulink, C/C++, Targetlink, Exact Extessy, Tricore 1766 Evaluation-Board, MKS, Winword, Polyspace

May 2004 - Jan 2006

1 year 9 months

Energy Management Automotive System Lead

Siemens VDO

Led demonstrator integration & presentation
Technical leadership, component integration and customer presentation
Designed work tools and framework conditions for a team
Basic implementation with interfaces, bus connection and GUI
Component integration via agreed interfaces
Commissioning and measurement data analysis
Customer coordination and presentation
Tool training
Tools: MATLAB/Simulink, Real-Time Workshop (Simulink Coder), Python, Controldesk, Stateflow, C/C++, dSpace MicroAutobox, CANoe

Jan 2004 - Apr 2004

4 months

Developing Driver Assistance Demonstrator

BMW

Developed accelerator pedal assistance with test drives
Model-based development for intelligent accelerator pedal control
Extended the model to integrate pressure-sensitive accelerator pedal input
Simulation and commissioning in the vehicle
Tool training
Tools: MATLAB/Simulink, Stateflow, C/C++, dSpace Autobox, Controldesk, Real-Time-Workshop (Simulink Coder)

Sep 2003 - Apr 2004

8 months

Developing Car-Body Framework Library

Siemens VDO

Developed library components for an automation framework
Library development in test automation
Generic component development for restbus simulation
Tool control via Windows API
Tools: TESTSTAND, ActiveX, CANoe, Labview, C/C++, Javascript, Visual Basic, CAN, LIN and KWP2000

Apr 2003 - Aug 2003

5 months

Designing Car-Body Test Specification

Siemens VDO

Designed Car-Body test specification
Created system test specifications
Created documents based on module/system requirements
Tools: MS-Office

Aug 2000 - Mar 2003

2 years 8 months

Developing Climate Control

GKR / Bosch

Developed climate control and participated in testing
Software development for an automotive climate control unit
Software module development
Developer testing with emulators
Specified & performed system tests
Qualified and tested hardware components
Participated in summer testing
Tools: C, Hitex Emulator, Motorola 68H08-Prozessor, SAE1587-Bus, Oszilloskop, Logikanalyser

Mar 1999 - Dec 1999

10 months

Control Engineering Modeling

Adaptive control of asynchronous motors and simulation
Observer design for a rotor without speed tracking
Design of an identifier for time-varying variables
User interface development, simulation & evaluation
Extension of plant models followed by testing
Tools: Matlab/Simulink, MS-Office

Jul 1993 - Feb 1999

5 years 8 months

Various Projects

In the fields of control engineering, plant engineering, process engineering, image processing, automation, low-level programming, databases, digital technology, and communications engineering

Industry experience

See where this freelancer has spent most of their professional time.

Experienced in Automotive, Manufacturing, Information Technology, Energy, and Construction.

Automotive

Manufacturing

Information Technology

Energy

Construction

Business area experience

See which departments and functions this freelancer has contributed to most.

Experienced in Product Development, Quality Assurance, Information Technology, Project Management, and Research and Development.

Product Development

Quality Assurance

Information Technology

Project Management

Research and Development

Skills

Firmware Development
Automation
Test Automation
Simulation/Control Engineering
Project Management

Programming Languages:

Assembler (8051, 80x86, Hardware Architecture Knowledge)
C
C++
Clipper
Davinci
Foxpro
Java
Javascript
Labview
Macro Languages (Visualbasic)
Machine Languages (Assembler)
Matlab / Simulink
Python
Simulink Targetlink

Operating Systems:

Mac Os
Ms-Dos
Windows (7, Vista, Xp, 2000, Nt)
Windows Ce

Databases:

Access
Xbase (Dbase Iii, Foxpro, Clipper)

Hardware:

Bus (Can, Lin, Kwp2000, Profibus, Sae1587-Bus)
Digital (Hw Design With Pld, Fpga)
Digital Signal Processors
Real-Time Systems
Embedded Systems
Emulators
Frame Grabbers
Pld, Fpga
Industrial Robots
Measuring Devices
Microcontrollers
Pc
Control And Regulation Systems
Texas Instruments

Data Communication:

Bus (Can, Lin, Kwp2000, Profibus, Sae1587-Bus)
Ethernet
Internet, Intranet
Iso/Osi
Tcp/Ip
Windows Network

Languages

German

Native

English

Advanced

Education

Diplom Ingenieur · Electrical Engineering

Certifications & licenses

Sig Bluetooth Zertifizierung

Statistics

Experience

Total positions 32

Experience in Automotive 18.5 y

Avg length 11 m

Longest experience 5 y 7 m

Global experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles Software Developer - Building Automation, Software Developer - IoT Software Development and Cybersecurity Testing, Developer - Combined Heat and Power Plant Test Automation

Main industries Automotive, Manufacturing, Information Technology

Main business areas Product Development, Quality Assurance, Information Technology

Qualifications

Highest degree Master

Certifications earned 1

Profile

Member since

September 2025

Last update

October 2026

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Frequently asked questions

Have questions? Find more information here.

Sven is based in Bremen, Germany.

Sven speaks the following languages: German (Native), English (Advanced).

Sven has at least 30 years of experience. During this time, Sven has worked in at least 32 different roles and for 17 different companies. The average length of individual experience is 1 year and 11 months. Note that Sven may not have shared all experience and actually has more experience.

Based on recent experience, Sven would be well-suited for roles such as: Software Developer - Building Automation, Software Developer - IoT Software Development and Cybersecurity Testing, Developer - Combined Heat and Power Plant Test Automation.

Sven's most recent position is Software Developer - Building Automation.

Sven is most experienced in industries like Automotive, Manufacturing, and Information Technology. Sven also has some experience in Energy and Construction.

Sven is most experienced in business areas like Product Development, Quality Assurance, and Information Technology. Sven also has some experience in Project Management and Research and Development.

Sven has recently worked in industries like Information Technology, Energy, and Automotive.

Sven has recently worked in business areas like Product Development, Information Technology, and Quality Assurance.

Sven holds a Master in Electrical Engineering.

Sven has 1 certificate: Sig Bluetooth Zertifizierung.

Sven is immediately available full-time for suitable projects.

Daily rate distribution

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<€800 €800-960 €960-1120 €1440+

The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.

Average rates for similar positions

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Daily rate avg. 891 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

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750

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250

Median rate 880 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Calculated based on our freelancers’ daily rates as of 20 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.