John Maruska
Developer at Bayer (via Dexian)
Missouri, United States
Summary
👤
Senior🎓
Top SchoolJohn Maruska is a Senior Fullstack JavaScript Developer with a decade of engineering experience and a strong track record delivering data-focused systems across retail media, healthcare research, and geospatial platforms. He combines practical full-stack skills with data engineering and cloud migration experience—having led ETL redesigns that sped data ingestion and enabled rapid addition of new sources with zero downstream disruption. Comfortable in both functional (Clojure) and object-oriented stacks, he’s mentored teams in functional programming while shipping front- and back-end features ahead of schedule. Colleagues call him a pragmatic, analytical problem-solver who routinely turns legacy services into standardized, maintainable platforms. Based in Missouri, he pairs hands-on coding with stakeholder collaboration to translate complex requirements into measurable business impact.
10 years of coding experience
9 years of employment as a software developer
Bachelor of Science (B.S.) Computer Science, Computer Engineering, Bachelor of Science (B.S.) Computer Science, Computer Engineering at Missouri University of Science and Technology
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (16)
variants9
biomedical9
bioinformatics9
wdl9
pipeline7
tooling6
infrastructure4
cromwell4
discord3
chatbot2
ccd2
amazon-redshift2
clojure1
xbee1
sensor1
Programming languages (7)
Github contributions (5)
wustl-oncology/analysis-wdls
Jun 2021 - Apr 2022
Scalable genomic analysis pipelines, written in WDL
Contributions:4 reviews, 163 commits, 26 PRs in 10 months
wdl
johnmaruska/hub
Sep 2020 - Dec 2023
Contributions:36 PRs, 207 pushes, 59 branches in 3 years 3 months
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