Condensed version: A shorter, streamlined CV is available.

Short CV

DI Dr.techn. Sebastian Templ BSc

Data scientist. Software developer. Particle physicist.

Contact

Location
Vienna, Austria

Email
jobinquiries@sebastiantempl.eu

Website
sebastiantempl.eu

LinkedIn
linkedin.com/in/sebastiantempl

GitHub
github.com/tempse

Profile

Data scientist, software developer, and particle physicist passionate about extracting insight from complex data and building robust, production-ready solutions.

Experience includes: petabyte-scale statistical analysis at CERN, developing novel analysis methods and frameworks, and delivering AI-driven products in the financial sector.

I thrive at the intersection of science and technology, blending deep analytical skills with a pragmatic, team-oriented approach to problem solving.

Track record of leading high-impact projects—from rapid prototyping to production deployment.

Excellent communicator of technical concepts to diverse audiences.

Whether designing new algorithms, optimizing workflows, or collaborating with stakeholders, I am committed to delivering value through clear thinking, rigorous methodology, and a drive for continuous improvement.

Experience

2022 – Present
Vienna, Austria

Data Scientist @ Smartstream Innovation Lab

Senior Data Scientist (Sep 2024 – Present)
Machine Learning Engineer (Jul 2022 – Sep 2024)

  • Development of AI-based solutions for the financial sector
  • Creation of high-quality code, from prototypes to production-ready libraries
  • Collaboration with stakeholders and customers on new and existing projects
2018 – 2021
Vienna, Austria
Geneva, Switzerland
Los Angeles, USA

Doctoral Researcher @ CERN · HEPHY · MBI

Staff Research Associate @ University of California, Los Angeles (UCLA) (Sep 2021 – Dec 2021)
Doctoral researcher @ Institute of High Energy Physics (HEPHY)† (May 2018 – Aug 2021)

  • Petabyte-scale, statistical data analysis of high-energy particle collisions produced by the CERN Large Hadron Collider (LHC) and recorded by the CMS detector
  • Development of novel analysis techniques and custom frameworks
  • Leadership of the CMS Level-1 Trigger Menu Group
2017 – 2018
Vienna, Austria
Geneva, Switzerland

Junior Researcher @ CERN · SMI · MBI

Junior researcher @ Stefan Meyer Institute for Subatomic Particles (SMI)† (Jan 2017 – Mar 2018)

  • Statistical data analysis of ultra-relativistic heavy-ion collisions produced by the CERN–LHC and recorded by the ALICE detector
  • Development of machine-learning techniques for classification of collision events
2016 – 2017
Darmstadt, Germany

Quality Assurance Engineer @ GSI/FAIR

Junior researcher & QA engineer @ GSI/FAIR (Jul 2016 – Jan 2017)
Selectee for the International Summer Student Program @ GSI/FAIR (2016)

  • Quality assurance, prototyping, and data analysis of novel Silicon Microstrip Sensors for the CBM heavy-ion collider experiment at GSI/FAIR
2015 – 2016
Vienna, Austria

Computational Researcher @ LNGS · HEPHY · MBI

Junior researcher @ Institute of High Energy Physics (HEPHY)† (Oct 2015 – Jul 2016)

  • Monte-Carlo simulations & data analysis for the CRESST Dark Matter experiment at the INFN Gran Sasso National Laboratory (LNGS)
2014 – 2014
Vienna, Austria
Geneva, Switzerland

Computational Researcher @ CERN · SMI · MBI

Junior Researcher @ Stefan Meyer Institute for Subatomic Particles (SMI)† (Jul 2014 – Oct 2014)

  • Simulation studies for the HBAR-HFS antihydrogen spectroscopy experiment at the CERN Antimatter Factory

† The Institute of High Energy Physics (HEPHY) and the Stefan Meyer Institute for Subatomic Particles (SMI) have meanwhile merged into the Marietta Blau Institute (MBI).

Education

2021
Vienna, Austria

Ph.D., Technical Sciences · Technische Universität Wien

Graduated with distinction in Nov 2021.

Thesis: Search for displaced dimuons in proton-proton collisions at √s = 13 TeV with the CMS muon system (link)
Supervisor: Univ. Doz. DI Dr.techn. Claudia-Elisabeth Wulz

2018 · 2015
Vienna, Austria

M.Sc. & B.Sc., Physics · Technische Universität Wien

Focus areas:

  • Simulation & numerical methods, matchine learning, deep learning
  • Particle, nuclear, and atomic physics
  • Nuclear astrophysics, dark matter, cosmology, black holes

Achievements

2025

Breakthrough Prize in Fundamental Physics

Awarded to co-authors of publications based on CERN's LHC Run-2 data (link)

2019

Diploma of the CERN School of Computing

Passed with distinction in Cluj-Napoca, Romania, in Sep 2019.

Focus areas: Software engineering, data technologies, physics computing.

2018

Scholarship of the Doctoral Program on Particles and Interactions (DK-PI)

Austrian excellence program for Ph.D. researchers in particle physics

Responsibilities · Memberships

  • Team Leader of the CMS Level-1 Trigger Menu Group (CERN, Sep 2019 – Mar 2021)
    • Management of an international team of about 10 people in preparation of the CERN–LHC Run-3 data-taking period.
  • Research collaboration memberships:
    • CMS collaboration (May 2018 – Dec 2021): 4000+ members from 40+ countries
    • ALICE collaboration (Jan 2017 – Mar 2018): 1900+ members from 40 countries
    • CERN external scientist (Jan 2017 – Dec 2021): 17500+ members from 70+ countries
    • CBM-STS collaboration (Jul 2016 – Jan 2017): 450+ members from 12 countries
    • CRESST collaboration (Oct 2015 – Jul 2016)
    • ASACUSA collaboration (Jul 2014 – Oct 2014)

Skills

For a more complete list of skills, see the dedicated Skills page.

  • Software engineering:
    • Python; C++/C; pip-tools, uv; Git; Bash; Linux; VS Code, PyCharm, Cursor
    • Type annotations; mypy, pylint; pytest, doctests, integration & e2e tests
    • Design patterns; performance profiling; semantic versioning; documentation
    • Rapid exploratory workflows: “vibe coding” & “raw‑brain coding”, followed by production hardening
  • Data science & analytics:
    • pandas, numpy; SQL; Parquet/Arrow; exploratory analysis & experiment design
    • Model evaluation & calibration; statistics; optimization; Monte‑Carlo methods
    • Visualization: matplotlib, seaborn, plotly
  • Machine learning & deep learning:
    • scikit‑learn; tree‑based methods; neural networks; GNNs
    • PyTorch, Keras; LLMs with LoRA fine‑tuning & quantization
    • MCP server setups for LLM applications
  • MLOps & production:
    • CI/CD best practices; containerization with Podman & Docker
    • Model monitoring & drift detection with Prometheus & Grafana; security scans
    • OpenTelemetry; AWS (EC2 for training & prototyping)
  • Collaborative skills:
    • Proactive, accountable, transparent communication; team‑centric mindset; stakeholder alignment
    • Takes responsibility end‑to‑end; improves processes while adhering to standards
    • Public speaking for technical and non‑technical audiences; clear, audience‑aware narratives
  • Languages:
    • German (native)
    • English (fluent)

Selected Publications

  • CMS Collaboration. "Search for long-lived particles decaying to a pair of muons in proton-proton collisions at √s = 13 TeV." Journal of High Energy Physics, 2023(5):228, 30 May 2023. Springer  |  CDS  |  Summary
  • S. Templ. "Search for displaced dimuons in proton-proton collisions at √s = 13 TeV with the CMS muon system." Ph.D. thesis, Technische Universität Wien, 2023(5):228, 30 Sep 2021. CDS  |  TUW  |  Summary
  • S. Templ. "A Multivariate Approach to Dilepton Analyses in the Upgraded ALICE Detector at CERN-LHC." Master thesis, Technische Universität Wien, 28 Mar 2018. CDS  |  TUW  |  Summary
  • S. Templ. "Signal Reconstruction and Crosstalk Analysis for a CBM-STS Silicon Microstrip Sensor Prototype." Project thesis, GSI Helmholtz Centre for Heavy-Ion Research, 26 Jan 2017. Summary
  • S. Templ. "Calculation of the Light Yield for a CRESST-II Module by Application of Birks’ Law." Project thesis, Institute of High Energy Physics (HEPHY), 18 Feb 2016. Summary
  • S. Templ. "Simulation of the Position Resolution of a Scintillation Detector." Bachelor thesis, Technische Universität Wien, 8 Oct 2014. Summary

Additionally, I have co-authored numerous works as part of the CMS collaboration, which can be found here.

Selected Talks

  • Looking beyond the beam spot: Searches for long-lived particles
    Vienna Theory Lunch Seminar, University of Vienna, Austria
    December 2019
  • Search for displaced dimuons and dimuon pairs at 13 TeV
    CMS Exotica Workshop 2019, RWTH Aachen, Germany
    October 2019
  • Search for Long-Lived Particles Beyond the Standard Model with CMS
    DKPI Colloquium, TU Wien, Austria
    April 2019
  • Prescale tools for L1T: Level-1 Trigger Operations + DPG
    LS2 Kick-Off Workshop, CERN, Switzerland
    February 2019
  • Machine Learning for the ALICE ITS Upgrade
    LMee Workshop, Frankfurt Institute for Advanced Studies (FIAS), Frankfurt, Germany
    July 2017
  • Signal Reconstruction for a CBM-STS Silicon Microstrip Sensor Prototype Using the Alibava System
    STS collaboration meeting, GSI Helmholtz Centre for Heavy Ion Research, Darmstadt, Germany
    September 2016

Selected Posters

Click to expand
  • Study of triggers for long-lived particle searches using cosmic-ray muons in CMS
    15th Vienna Central European Seminar on Particle Physics and Quantum Field Theory, TU Wien, Austria
    November 2019
  • Machine Learning for the ALICE Upgrade: Performance Enhancement of Dilepton Analyses
    Joint Annual Meeting of the Swiss Physical Society (SPS) and the Austrian Physical Society (ÖPG), CERN/CICG, Switzerland
    August 2017

Attended conferences, workshops, schools

Click to expand
  • NeurIPS 2025: Conference on Neural Information Processing Systems
    remote attendance
    December 2025
  • NeurIPS 2024: Conference on Neural Information Processing Systems
    remote attendance
    December 2024
  • NeurIPS 2023: Conference on Neural Information Processing Systems
    remote attendance
    December 2023
  • CMS Exotica Workshop
    cyberspace
    October 2020
  • DKPI Summer School
    cyberspace
    September 2020
  • Inverted CERN School of Computing
    cyberspace
    September 2020
  • Seventh Workshop of the LHC-LLP Community
    cyberspace
    May 2020
  • CMS Long-Lived Exotica Workshop
    CERN, Geneva, Switzerland
    January 2020
  • 15th Vienna Central European Seminar on Particle Physics and Quantum Field Theory
    TU Wien, Vienna, Austria
    November 2019
  • CMS Exotica Workshop
    RWTH Aachen, Aachen, Germany
    October 2019
  • CERN School of Computing 2019
    Babes-Bolyai University, Cluj-Napoca, Romania
    September 2019
  • Fifth Workshop of the LHC-LLP Community
    CERN, Geneva, Switzerland
    May 2019
  • DKPI Retreat
    Steyr, Austria
    April 2019
  • CMS Level-1 Trigger Algorithms Workshop
    CIEMAT, Madrid, Spain
    March 2019
  • How to do Ultrafast Deep Neural Network Inference on FPGAs (Workshop)
    University of Zurich, Zurich, Switzerland
    February 2019
  • CMS Exotica Workshop
    University of Athens, Athens, Greece
    October 2018
  • Fourth Workshop of the LHC LLP Community
    Amsterdam Science Park, Amsterdam, Netherlands
    October 2018
  • DKPI Summer School
    Hirschwang, Austria
    September 2018
  • ALICE LMee workshop
    Frankfurt Institute for Advanced Studies, Frankfurt, Germany
    July 2017
  • Joint Annual Meeting of the Swiss Physical Society (SPS) and the Austrian Physical Society (ÖPG)
    CERN/CICG, Geneva, Switzerland
    August 2017

Outreach

Click to expand
  • Outreach talk about the evolution of the universe in a Viennese high school
    January 2019
  • European Researchers’ Night
    September 2018
  • Lange Nacht der Forschung
    April 2018
  • International Particle Physics Masterclasses
    February 2018
  • FIT workshop
    January 2018
  • European Researchers’ Night
    September 2017
  • Generation Innovation Internship: co-mentoring of a high school student
    August 2017
  • International Particle Physics Masterclasses
    March 2017