Condensed version: A shorter, streamlined CV is available.
Short CVDI 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
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
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
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
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
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)
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
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
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
Breakthrough Prize in Fundamental Physics
Awarded to co-authors of publications based on CERN's LHC Run-2 data (link)
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.
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
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- 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
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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