Alexander Peltzer
Senior Principal Scientist at Boehringer Ingelheim
Dornstadt, Baden-Württemberg, Germany
Summary
🤩
Rockstar🎓
Top SchoolAlexander Peltzer is a Senior Principal Scientist with 11+ years applying large-scale and cloud computing to complex life-science problems, currently architecting analytics and biomarker strategies for oncology clinical programs at Boehringer Ingelheim. He combines hands-on pipeline engineering (Nextflow, nf-core), CI/CD and containerization expertise with translational data science to accelerate trials from early to late phase. His open-source contributions to high-profile projects like nf-core, MultiQC and Bioconda reflect deep competence in reproducible, automated bioinformatics workflows and tool integration. A former PhD researcher in ancient DNA, he brings a rare blend of population-genetics experience and production-grade software engineering to clinical bioinformatics. He mentors teams, builds testing frameworks and config validation tooling, and often focuses on pragmatic automation that meaningfully reduces analysis turnaround time. Based in Dornstadt, Germany, he also maintains an active presence in the nf-core community and open-source ecosystem.
11 years of coding experience
8 years of employment as a software developer
Biology / Computer Science, Biology / Computer Science at San Francisco State UniversityDoctor of Philosophy - PhD Bioinformatics, Doctor of Philosophy - PhD Bioinformatics at University of TübingenCertificate of Achievement, Certificate of Achievement at Harvard Medical School Professional, Corporate, and Continuing EducationAbitur Higher Education Entrance Qualification, Abitur Higher Education Entrance Qualification at Schubart Gymnasium Ulm
German, English, French
Github Skills (63)
go-modules10
github-ci10
docker10
website-development10
python10
testing10
css10
random-data10
bots10
test-framework10
conda10
workflow-engine10
kernel-module10
bash10
user-interface10
Programming languages (27)
Github contributions (5)
nf-core/scrnaseq
Jun 2019 - Nov 2022
A single-cell RNAseq pipeline for 10X genomics data
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:4 releases, 58 reviews, 296 commits in 3 years 5 months
Contributions summary:Alexander primarily contributed to the development and maintenance of the `nf-core/scrnaseq` pipeline. The commits reflect a focus on integrating various single-cell RNA-Seq tools, including the addition of Kallisto and Bustools, and the creation of related processing steps. They made changes to both the main Nextflow workflow and auxiliary scripts, demonstrating an understanding of pipeline architecture and tool integration.
nf-core10xrnaseqpipelinegenomics-data
nf-core/configs
Nov 2018 - Dec 2022
Config files used to define parameters specific to compute environments at different Institutions
Role in this project:DevOps Engineer & QA Engineer / Test Automation Engineer
DevOps Engineer & QA Engineer / Test Automation EngineerContributions:79 reviews, 209 commits, 118 PRs in 4 years 1 month
Contributions summary:Alexander primarily contributed to the development and improvement of a testing framework for the `nf-core/configs` repository. Their work focused on creating a Python script (`cchecker.py`) to validate custom configuration files against GitHub Actions workflows. They implemented checks for profile consistency and added features such as ignoring specific profiles and improved the error messaging. The user utilized YAML parsing to extract and compare profiles defined in the GitHub Actions files, demonstrating an understanding of CI/CD pipelines and testing automation.
workflownf-coreparametersconfigurationsingularity
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