Pawel Nabe - Linux Subject Matter Expert, ClearCase

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Berlin, Germany

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Experience

Apr 2025 - Aug 2025

5 months

Frankfurt, Germany

Linux Subject Matter Expert

TCS Alliance Healthcare

Update/upgrade Linux servers to new versions
Install Trend Micro on Linux servers
Prepare, present and maintain technical documents
Refactor tools
Platforms: SUSE Linux Enterprise Server (SLES) 10, 11, CentOS, RedHat, Windows10, PowerShell, Bash, Perl, Trend Micro AV, Putty, ssh, VmWare
Project language: English

Sep 2024 - Feb 2025

6 months

Erlangen, Germany

Senior ClearCase Expert

Siemens

Proof of concept for a migration from Solaris 10 to Solaris 11
Incident management for ClearCase and MultiSite
ClearCase and MultiSite administration
Platforms: ClearCase MultiSite, Perl, Solaris 10, Solaris 11, Red Hat Linux, Windows 10, Fujitsu SPARC M10 and M12

Nov 2023 - Nov 2024

1 year 1 month

Basel, Switzerland

Solution Architect Senior ClearCase Expert

Cognizant Novartis

Design and implementation of the new archiving tool NCV (Novartis Clinical Vault)
Design and implementation of the data separation of Sandoz from Novartis
Incident management for ClearCase and MultiSite
ClearCase and MultiSite administration
Refactoring tools
Platforms: ClearCase MultiSite, Perl, PowerShell, bash, ksh, Citrix XenApp, Windows 10, AIX, HP Quality Center (PROTON), REST API
Agile methodology: Scrum
Project language: English

Apr 2023 - Oct 2023

7 months

Düsseldorf, Germany

Script Developer

Athlon

Migration of an Oracle DB application to Docker/Artifactory/PaaS
Implementation of PowerShell scripts to transfer Active Directory permissions
Platforms: Red Hat Linux, Citrix VDI, Windows 10, bash, Perl, PowerShell, Putty, MS Office, SNOW (ServiceNow), Git, Jenkins, Docker, Artifactory, PaaS, Oracle DB

Jul 2021 - Dec 2021

6 months

Basel, Switzerland

Solution Architect Senior ClearCase Expert Senior Perl Developer Clinical Biostatistics

Novartis

Refactoring and further development of the DaVinci project
Design and implementation of the automatic generation of audit-proof PDF documents from all MS Office formats
Design and implementation of a method to automatically set a ClearCase View context
Platforms: ClearCase MultiSite, ClearMake, Perl, PowerShell, bash, ksh, NYTProf, Citrix XenApp, Windows 10, Red Hat Linux, AIX, VirtualBox, HP Quality Center (PROTON), Sun Grid Engine (SGE), IBM Load Sharing Facility (LSF), XML, SAS, R, RStudio, Monolix, NONMEM, PsN, MATLAB, Jira
Agile methodology: Scrum
Project language: English

Jun 2021 - Jun 2023

2 years 1 month

Stuttgart, Germany

Subject Mater Expert Linux

Infosys Mercedes-Benz

Linux System Administration Level 3 for Mercedes-Benz and Daimler Trucks worldwide
Designed and implemented automated procedures for transferring Linux log data to MS Excel
Designed and implemented an automated procedure for monitoring disk space usage and documenting the levels in MS Excel
Platforms: VMware vSphere ESXi, VMware vCenter, SLES 12, 15, Citrix VDI, Salt, Windows 10, bash, zsh, Perl, PowerShell, Putty, MS Office, CISM, SNOW (ServiceNow), CheckMK, CyberArk PasswordVault, Python, sar
Project language: English

Jan 2020 - May 2021

1 year 5 months

Hanover, Germany

Technical Administrator

Materna Justizministerium Niedersachsen

Technical administration of court software for the E2 project
Integration of programs for e-files, text systems and the electronic land register
Implemented tools for generating PDFs from all MS Office formats
Standardized passwords and set default browsers
Imported organizational data and user accounts into databases
Pseudo-scanner, clearing browser caches
Refactored tools
Platforms: Windows Server 2016/2019, Windows 10, Windows TerminalServer, MS SQL Server, PowerShell, Perl, XML
Tools: Rational Team Concert (RTC), Jira, Kanban, ODBC
Agile methodology: Scrum

Oct 2019 - Jul 2020

10 months

Berlin, Germany

Solution Architect

Siemens

Wrote the white paper "Continuous Integration for ESBO"
Developed a concept for migrating from ClearCase to Git
Developed a prototype for moving the build system to Docker and Artifactory
Refactored tools
Platforms: ClearCase MultiSite, Docker, Cygwin, Perl, Bash, Git, Artifactory, nmake, pstools, cmake, VS Buildtools, PowerShell, REST API, Windows 10, Windows Server 2016, Citrix VDI

Jul 2019 - Aug 2019

2 months

Frankfurt, Germany

Senior UNIX Sysadmin & DevOps Engineering Consultant

DZ BANK

Helped implement segregation of duties following concerns raised by the ECB
Piloted a portable sudoers list
Developed threat scenarios based on MITRE ATT&CK
Platforms: MITRE ATT&CK, CyberArck PAM, sudo, auditd, Splunk, Linux, Solaris 10, Windows 7

Jul 2015 - Jun 2019

4 years

Basel, Switzerland

Solution Architect Senior ClearCase Expert Senior Perl Developer Clinical Biostatistics

Novartis

Refactored all Perl and Shell programs on the Clinical Research Biostatistics platform GPS II
Contributed to the design and implementation of the replacement platform DaVinci
Migrated all 3000+ biostatistics developers to a NAS platform
Designed and developed a generic audit tool based on ClearMake
Introduced a parallel and distributed build environment with ClearMake on AIX and SGE
Developed ClearCase Rolemap ACLs and triggers to enforce policies
Migrated 1200 ClearCase databases from AIX to Linux
Implemented RCS keywords and wrappers for SGE→LSF
Platforms: Perl, ksh, bash, ClearCase MultiSite, ClearMake, NYTProf, Citrix XenApp, Windows 2008 R2, Windows 7, Red Hat Linux, AIX, VirtualBox, HP Quality Center, SGE, LSF, XML, SAS, R, Monolix, NONMEM, PsN, MATLAB
Agile methodology: Scrum
Project language: English

Feb 2015 - Jul 2015

6 months

Munich, Germany

Senior ClearCase DevOps Expert

Intel Mobile Communications

Software workflow and configuration management consulting
Refactoring tools
Platforms: OptiCM5, ClearCase MultiSite, Windows 8.1/2008 R2/7/2003, Red Hat Linux, SUSE, Solaris, VNC, Perl, Shell, Git, Gerrit, Jenkins
Project language: English

Sep 2014 - Dec 2014

4 months

Veldhoven, Netherlands

Senior ClearCase DevOps Expert

ASML

Part of the Non-Standard-Changes team
Introduction of GoogleMock/GoogleTest into the build system
Development of a solution to reduce oversized ClearCase directories
Transition from Solaris to Linux
Platforms: RedHat Enterprise Linux, Citrix VDI, WindRiver Linux, Sun Solaris, Windows 7, ClearCase UCM, MultiSite, ClearMake, ClearQuest, gmake, Jira, LSF, Code Collaborator, C++, Eclipse
Agile methodology: Scrum
Project language: English

Apr 2014 - Aug 2014

5 months

Amsterdam, Netherlands

ClearCase Support Center EMEA

IBM RATIONAL

Expansion of the German- and English-speaking ClearCase MultiSite Support Center for EMEA
Platforms: Windows XP/7/8/2008, Perl, Linux (SuSE, RedHat, Ubuntu), Solaris, AIX, HP-UX, VMware Workstation, VirtualBox, ClearCase UCM, MultiSite, ClearMake, ClearQuest, ClearCase Automation Library, Kepner-Tregoe
Project language: English

Oct 2012 - Dec 2013

1 year 3 months

Munich, Germany

ClearCase Optimization DevOps

Intel Mobile Communications

Third-level support for the global ClearCase MultiSite SPOC
Performance and stability optimization
Analysis and resolution of functional issues
Evaluation of cache, NFS and SMB2 settings
Perl module correction
Start of the ClearCase→Git/Gerrit/Jenkins migration
Platforms: ClearCase MultiSite, Windows 8/2008 R2/7/2003, Red Hat Linux, SUSE, Solaris, VNC, Perl, Shell, NetApp, WireShark, ProcMon, Git, Gerrit, Jenkins, Cadence, NFS, SMB2, LSF
Project language: English

Apr 2012 - Sep 2012

6 months

Erlangen, Germany

ClearCase Optimization DevOps

Siemens Healthcare Magnetic Resonance

DO (derived object) VOB split
ClearCase view analysis and deletion of unnecessary build objects
Performance optimization
Migration of build machines from Windows XP→7
Platforms: Windows 7/XP, SUSE Linux, ClearCase 7/8, Perl, MedMake, NetApp

Oct 2011 - May 2012

8 months

Neumünster, Germany

Release Manager

PASE

Release Manager for the MIB Modular Infotainment Toolkit (VW, Audi, Skoda, SEAT) for North America, China, Japan, Korea
Refactoring of the CD production process
Test planning for releases
Project language: English
Platforms: Windows XP, Subversion, Perl, Jira, Poka Yoke

Jan 2011 - Sep 2011

9 months

Berlin, Germany

Software Build Management Performance Improvement DevOps

Siemens Energy

Extension of an existing build framework
Profiling with NYTProf and reimplementation of critical sections (speed increase by a factor of 3–8)
Replacement of the ClearCase Automation Library (CAL)
Development of massively accelerated ClearCase labeling methods through parallelization
Research into distributed and parallel builds with ClearMake and PsExec
Development of static code analysis with PcLint and FxCop
Platforms: Windows XP/2003/2008, ClearCase 6/7.1.2.1, Perl, ClearMake, PsExec, PcLint, FxCop, C#, NYTProf.pm

Nov 2010 - Jan 2011

3 months

Hamburg, Germany

Configuration/Change/Release Management

Reederei Hamburg-Süd

Insourcing of the development environment from India to Hamburg
Development of a program to compare software versions between Delhi and Hamburg
RATIONAL ClearCase administration in the CEDIE-R project
Platforms: ClearCase UCM, Windows XP, SUSE Linux, Perl

Oct 2009 - Nov 2010

1 year 2 months

Amsterdam, Netherlands

ClearCase Support Center EMEA

IBM RATIONAL

Expansion of the German- and English-speaking ClearCase MultiSite Support Center for EMEA
Platforms: Windows XP/7/2008, Perl, Linux, Solaris, AIX, VMware Workstation, ClearCase UCM, MultiSite, ClearMake, Kepner-Tregoe, KT resolve
Project language: English

Oct 2008 - Aug 2009

11 months

Buxtehude, Germany

Configuration Management

Airbus

Introduction of RATIONAL ClearCase UCM
Troubleshooting of group permissions and UCM component definitions
Migration preparation and migration to UCM
Creation of English e-learning training materials with Camtasia Studio
Training of implementers and verifiers
Revision of the Software Configuration Management Plan (SCMP)
Development of a Software Configuration Index Generator and CLOC Generator
Development of a display program for WinWord OLE properties in ClearCase attributes
Platforms: ClearCase/ClearQuest, Windows XP, HP-UX, Perl, Camtasia Studio, Win32::OLE
Project language: English

Jul 2008 - Jul 2008

1 month

Maulburg, Germany

Emergency ClearCase Performance Tuning

Endress & Hauser

Performance analysis and tuning using Wireshark/ProcessExplorer for ClearCase/ClearQuest with CCRC over WAN
Solved access rights issues in a layered domain user administration setup
Developed a tool for changing groups across any VOBs globally
ClearCase/MultiSite upgrade 7.0.0→7.0.1
RATIONAL MultiSite crash course for administrators
Platforms: ClearCase/MultiSite/ClearQuest 7, UCM, CCRC, Perl, Windows, Wireshark, ProcessExplorer, Eclipse

Jun 2008 - Sep 2008

4 months

Bad Salzdetfurth, Germany

Integration, Release, Configuration, Build Management

Delphi Automotive for AUDI

Integrator for the AUDI infotainment platform
Combined contributions from Germany, Poland, India, and Sweden
Evaluated tools for distributed builds
Implemented a solution using cygwin distcc
Platforms: Telelogic Synergy 6.5, Perl, QNX, Windows, gcc, distcc, cygwin, make
Agile methodology: Scrum
Project language: English

Mar 2008 - Apr 2008

2 months

Frankfurt, Germany

Technical Interfaces

Xchanging Transaction Bank

Coordinated technical activities to integrate the TRIBUTUM standard software for withholding tax
Worked with Xchanging IT suppliers and clients (Sparda, CitiBank, SalOppenheim)
Tendered and selected the TRIBUTUM hosting provider
Evaluated IBM WebSphere MQ and alternatives
Platforms: TRIBUTUM, Solaris, IBM pSeries, Host, XML

May 2007 - Feb 2008

10 months

Schwäbisch Hall, Germany

Configuration Management

VR Kreditwerk

Reduced and archived large UCM projects in compliance with audit requirements
Remotely supported Hamburg developers after the data center relocation
Integrated UCM structure and code scanners into ROCHADE ClearMake
Custom development
Platforms: AIX, Sun Solaris, Windows XP, Mainframe, ClearCase/MultiSite V7, UCM, ClearQuest, Perl

Feb 2007 - Apr 2007

3 months

Apeldoorn, Netherlands

Configuration Management

Belastingdienst

Contributed to the PICCUB project to introduce ClearCase, ClearQuest, and UCM
Developed a unified software development process based on RUP
Migrated projects to current hardware and ClearCase versions
Developed a report generator in Visual Basic for ClearQuest data
Platforms: AIX, Win32, Linux, Mainframe, ClearCase LT, ClearQuest, Perl
Project language: English

Industry experience

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

Experienced in Information Technology, Pharmaceutical, Automotive, Government and Administration, Banking and Finance, and Aerospace and Defense.

Information Technology

Pharmaceutical

Automotive

Government and Administration

Banking and Finance

Aerospace and Defense

Business area experience

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

Experienced in Information Technology, Research and Development, Operations, Product Development, Quality Assurance, and Customer Service.

Information Technology

Research and Development

Operations

Product Development

Quality Assurance

Customer Service

Skills

Programming Languages

C, C++
Perl, Awk, Sed, Tcl, Python, Powershell, Ms-Sql
Bourne Shell, C-Shell, Csh, Korn Shell, Ksh, Z-Shell, Zsh, Bash
Java, Html, Xml, Javascript
Esql-C, Pascal, Fortran
Motorola 680x0 Assembler
Intel 80x86 Assembler
Visual Basic

Hardware

Ibm Pseries, System P
Sun Fujitsu Sparc, Workstations And Servers
Windows Pcs, X86, X64
Hp 9000

Operating Systems

Ms Windows 7, 8, 10, 11
Windows Server 2016/2019, 2008, 2003, Xp, 2000, Nt 4
Aix 5.1, 5.2, 5.3
Linux Red Hat, Suse, Ubuntu, Centos, Windriver
Sun Fujitsu Solaris, Sun Os
Unix V7, System Ii And V 4.1, 4.2 Bsd
Sinix, Reliant Unix 5.43, 5.44
Sco Unix, Hp-Ux, Ultrix, Pnx, Qnx
Openvms

Databases

Informix
Sybase
Oracle
Dbase
Microsoft Access

Tools / Methods

Rational Clearcase, Multisite, Clearquest, Clearddts, Ucm, Ccrc, Clearmake, Clearcase Automation Library (Cal)
Scrum
Rest Api, Poka Yoke, Refactoring
Salt, Cyberark, Artifactory, Paas, Sudo, Auditd, Splunk, Checkmk
Sas, R, Monolix, Nonmem, Psn (Perl-Speaks-Nonmem), Matlab
Jira, Kepner-Tregoe, Kt Resolve, Lsf (Load Sharing Facility), Code Collaborator
Git, Gerrit, Jenkins
Vmware Workstation, Vmware Vsphere Esxi, Vmware Vcenter, Virtual Pc, Oracle Vm Virtualbox, Citrix Vdi
Telelogic Synergy
Wireshark, Procmon, Processexplorer
Nytprof, Pclint, Fxcop
Cvs, Sccs, Rcs, Continuus, Dsee, Visual Studio, Sourcesafe, Serena Pvcs
Cmm, Cmmi, Cc, Gcc, Gmake, Gnu
Primavera, Mapsource, Gpicsync, Cygwin, Distcc, Camtasia Studio, Psexec
Samba, Intergraph Disk Access, Syntax Tas, Hummingbird Maestro Nfs
Tivoli, Interleaf 5, Lotus Notes, Aris
Imake, Make, Omake, Nmake
Win32::Ole, Ms-Office, Ms-Word, Ms-Powerpoint, Ms Visio
Perl, Awk, Sed, Tcl, Vi, Vim, Lex, Yacc, Zsh

Industries

Pharmaceutical Manufacturers
Offshoring Companies
Consulting Firms
Aircraft Manufacturers
Manufacturing Automation
Railway Technology
Security Solutions
Digital Signatures
Banks
Telecommunications
Government Agencies
Software Companies
Automotive Industry
Semiconductor Industry
Airlines
Research Institutions
Automotive Suppliers, Automotive
Measurement Technology

Other

Digital Signatures, Public-Key Infrastructures (Pki)
Gps, Geotagging, Geocoding
Exif
Knowledge Of Almost All Tools Commonly Used In The Unix Field
Knowledge Extending Down To The Kernel Level Of Unix, Qnx And Ms-Dos

Languages

German

Native

English

Advanced

Polish

Advanced

French

Elementary

Education

TU Berlin

Diplom Informatiker · Computer Science · Berlin, Germany

Certifications & licenses

Statistics

Experience

Total positions 25

Experience in Information Technology 6.5 y

Avg length 9 m

Longest experience 3 y 11 m

Global experience

Countries worked in 3 (Germany, Netherlands, Switzerland)

Primary country Germany

Expertise

Recent roles Linux Subject Matter Expert, Senior ClearCase Expert, Solution Architect Senior ClearCase Expert

Main industries Information Technology, Pharmaceutical, Automotive

Main business areas Information Technology, Research and Development, Operations

Qualifications

Highest degree Master

Certifications earned 1

Member since

November 2025

Last update

November 2026

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Frequently asked questions

Have questions? Find more information here.

Pawel is based in Berlin, Germany.

Pawel speaks the following languages: German (Native), English (Advanced), Polish (Advanced), French (Elementary).

Pawel has at least 17 years of experience. During this time, Pawel has worked in at least 19 different roles and for 21 different companies. The average length of individual experience is 1 year and 8 months. Note that Pawel may not have shared all experience and actually has more experience.

Based on recent experience, Pawel would be well-suited for roles such as: Linux Subject Matter Expert, Senior ClearCase Expert, Solution Architect Senior ClearCase Expert.

Pawel's most recent position is Linux Subject Matter Expert at TCS Alliance Healthcare.

In recent years, Pawel has worked for TCS Alliance Healthcare, Siemens, Cognizant Novartis, Athlon, and Novartis.

Pawel is most experienced in industries like Information Technology, Pharmaceutical, and Automotive. Pawel also has some experience in Government and Administration, Banking and Finance, and Aerospace and Defense.

Pawel is most experienced in business areas like Information Technology, Research and Development, and Operations. Pawel also has some experience in Product Development, Quality Assurance, and Customer Service.

Pawel has recently worked in industries like Information Technology, Automotive, and Pharmaceutical.

Pawel has recently worked in business areas like Information Technology, Operations, and Research and Development.

Pawel holds a Master in Computer Science from TU Berlin.

Pawel has 1 certificate: CISM.

The availability of Pawel needs to be confirmed.

Daily rate distribution

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<€480 €480-640 €640-800 €960-1120 €1120+

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Average rates for similar positions

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Daily rate avg. 735 €

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Median rate 680 €

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 7 Nov 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.