Alan O'callaghan
Director And Principal Product Owner at Emerald Hill Limited
Leicester, England, United Kingdom
Summary
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RockstarAlan O'callaghan is a Lean-Agile transformation leader and Certified Scrum Trainer with nearly two decades of hands-on Product Owner and Scrum Master experience, currently directing Emerald Hill Limited to help organisations worldwide realise high-performance Agile delivery. He co-authored A Scrum Book as part of the Scrum Patterns group and combines deep roots in object-oriented design, patterns-based architecture, and organizational patterns to shape practical, scalable Agile practices. A licensed Agile Fluency practitioner and frequent course author/instructor for Learning Tree International, Alan designs and delivers large-scale rollouts, training curricula, and targeted coaching for sectors from financial services to hydrocarbons. He also contributes to open-source scientific tooling—helping improve the widely used Seurat single-cell genomics toolkit—illustrating a rare blend of product leadership and technical contribution. Colleagues describe him as having a laid-back charm that nonetheless generates enthusiasm and momentum in teams making the shift to value-driven delivery.
11 years of coding experience
10 years of employment as a software developer
Stackoverflow
3,222reputation
221kreached
128answers
12questions
r
top-5%
plotly
top-5%
Github Skills (13)
rna-seq10
single-cell-genomics10
r10
ggplot9
plotly9
cran8
boxplot6
git6
legend6
heatmap6
dendrogram6
shiny6
github6
Programming languages (19)
Github contributions (5)
satijalab/seurat
Oct 2019 - Mar 2021
R toolkit for single cell genomics
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 commits, 3 PRs, 17 comments in 1 year 4 months
Contributions summary:Alan contributed to the Seurat R toolkit, primarily focusing on resolving issues and improving the code. Their work included modifying visualization functions, updating object structures, and incorporating palette options. The user also addressed documentation issues, contributing to the refinement and maintenance of the codebase.
single-cell-genomicscranhuman-cell-atlasgenomicsbioinformatics
alanocallaghan/instanseg
Sep 2024 - Mar 2025
Contributions:4 releases, 10 PRs, 89 pushes in 6 months
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