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“Do what you think is interesting, do something that you think is fun and worthwhile, because otherwise you won’t do it well anyway.”
―
Brian Kernighan

Curriculum vitae


Dr. rer. nat. Gerd Friemel

Physicist /
Software Consultant


English
German
Expertise

IT

  • Java 11+, Python, PHP 7.x, Javascript (ES6, Node) & C/C++
  • MySQL, MongoDB
  • Backend Frameworks: Spring Boot, Symfony, Drupal 7/8, Flask
  • Frontend: React, Vue
  • AWS, Ansible, Terraform, Docker, Kubernetes
  • OS: MacOS, Linux (Ubuntu/Debian, Arch)

Solid-state physics

  • high-temperature superconductivity (iron-based SC)
  • heavy-fermion systems
  • magnetic properties, neutron scattering
  • solid-state transport: hall effect, magnetoresistance
Work experience

since 2015-02
Senior Software Consultant, TNG Technology Consulting, Munich/Unterföhring (Germany)

  • since 2020-05
    • developing a B2C direct insurance portal, specifically quote creation and contract processing
    • backend development of central business system and microservices, with Spring Boot, Camel, OSGi
    • integration of external services (e.g. credit check)
  • since 2020-02 (3m)
    • developing a rule-based compliance engine for a payment provider
    • Spring Boot backend based on Spring Webflux, MariaDB and Groovy
    • Tooling: Maven, Liquibase, Lombok, Gitlab CI, Windows Development Environment
    • E2E Testframeworks with JBehave and Serenity BDD
  • since 2018-04 (1y 10m): development of a web B2B (SaaS) platform for Android based IoT-integration of security cameras
    • Provision and maintenance of SSO and user management services
    • Spring Boot Backend, VueJS Frontend, Keycloak SSO, server infrastructure hosted on AWS, deployed with Ansible and Kubernetes
    • requirements engineering and Scrum master tasks
  • since 2015-06 (2y 10 m): agile development of web-based content management system for a mobile app that provides IoT integration of home appliances based on Drupal, PHP, MySQL
    • maintenance of server infrastructure (AWS: ec2, elastic beanstalk, S3)
    • frontend micro service (Command code generation) based on React, LoopBack (Node), MongoDB
    • continuous delivery based on Atlassian Bamboo, Bash and Python3

2010-08 – 2014-10
Research assistant/PhD student, Max-Planck-Institut für Festkörperforschung, Stuttgart (Germany)

  • Neutron scattering studies of iron-based superconductors (AxFe2−ySe2) and Ce-based heavy-fermion system (Ce1-xLaxB6)
  • X-ray crystal structure analysis,
  • μSR studies

2009-03 – 2010-05
Diploma student, Institute for Solid State Research, IFW Dresden

  • Transport studies; electrical and heat conductivity
Education

2015-03 Oracle-Certified-Associate, Java 8 Programmer I
2010-08 – 2014-05 Promotion (Dr. rer. nat.), University Stuttgart (Germany), Max-Planck-Institute for Solid State Research

  • Thesis: "Itinerant Spin Dynamics in Iron-based Superconductors and Cerium-based Heavy-Fermion Antiferromagnets" Link

2005-04 – 2010-06 Studies of Physics (Diploma), TU Dresden (Germany)

  • Thesis: "Transport measurements on 122 iron arsenide superconductors" Download

2008-09 - 2009-02 ERASMUS-exchange student, Loughborough University (UK)

Publications


G. Friemel, H. Jang, A. Schneidewind, A. Ivanov, A. V. Dukhnenko, N. Y. Shitsevalova, V. B. Filipov, B. Keimer and D. S. Inosov,
Magnetic field and doping dependence of low-energy spin fluctuations in the antiferroquadrupolar compound Ce1-xLaxB6, Phys. Rev. B 92, 014410 (2015).

Dongjin Jang, Pavlo Y. Portnichenko, Alistair S. Cameron, Gerd Friemel, Anatoliy V. Dukhnenko, Natalya Y. Shitsevalova, Volodymyr B. Filipov, Astrid Schneidewind, Alexandre Ivanov, Dmytro S. Inosov & Manuel Brando
Large positive correlation between the effective electron mass and the multipolar fluctuation in the heavy-fermion metal Ce1-xLaxB6, npj Quantum Materials 2, 62 (2017).

A. S. Cameron, G. Friemel and D. S. Inosov,
Multipolar phases and magnetically hidden order: review of the heavy-fermion compound Ce1-xLaxB6, Reports on Progress in Physics 79, 066502 (2016).

in cooperation with the Max-Planck-Institute for Solid State Physics, Stuttgart:
G. Friemel, J. T. Park, T. A. Maier, V. Tsurkan, Y. Li, J. Deisenhofer, H.-A. Krug von Nidda, A. Loidl, A. Ivanov, B. Keimer and D. S. Inosov,
Reciprocal-space structure and dispersion of the magnetic resonant mode in the superconducting phase of RbxFe2−ySe2 single crystals, Phys. Rev. B 85, 140511 (2012).

G. Friemel, W. P. Liu, E. A. Goremychkin, Y. Liu, J. T. Park, O. Sobolev, C. T. Lin, B. Keimer and D. S. Inosov,
Conformity of spin fluctuations in alkali-metal iron selenide superconductors inferred from the observation of a magnetic resonant mode in KxFe2−ySe2, EPL 99, 67004 (2012)

G. Friemel, Y. Li, A. Dukhnenko, N. Shitsevalova, N. Sluchanko, A. Ivanov, V. Filipov, B. Keimer and D. Inosov,
Resonant magnetic exciton mode in the heavy-fermion antiferromagnet CeB6, Nat Commun 3, 830–(2012)

H. Jang, G. Friemel, J. Ollivier, A. V. Dukhnenko, N. Y. Shitsevalova, V. B. Filipov, B. Keimer and D. S. Inosov,
Intense low-energy ferromagnetic fluctuations in the antiferromagnetic heavy-fermion metal CeB6, Nat Mater 13, 682–687 (2014).

in cooperation with the IFW Dresden:
L. Harnagea, S. Singh, G. Friemel et al.,
Phase diagram of the iron arsenide superconductors Ca(Fe1−xCox)2As2 (0 ≤ x ≤ 0.2), Phys. Rev. B 83, 094523 (2011).

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