Joonas Puura
Engineering Manager at Bolt
Tartu, Estonia
Summary
👤
Senior🎓
Top SchoolJoonas Puura is an Engineering Manager in Tartu with 11 years of experience building and leading data science and machine learning teams, currently heading Bolt’s Data Science ML Tools & Workflows for Customer Support product. He progressed from hands‑on ML research and engineering—shipping company‑wide ETA/travel‑time and traffic forecasting models and production live‑signal features—to team leadership, hiring and mentoring data scientists while coordinating cross‑team roadmaps. Joonas has a strong academic background from the University of Tartu (MSc, PhD studies) and brings research rigour to production systems, having built backtesting simulators and robust batch/stream training pipelines that improved routing and forecasting stability. He also teaches mobility modelling, underscoring his mix of practical impact and scholarly depth. A detail that stands out: he combines deep experimentation culture (A/B testing and offline/online evaluation harnesses) with product-focused delivery in high‑throughput, real‑time ML environments.
11 years of coding experience
7 years of employment as a software developer
High School, High School at Nõo ReaalgümnaasiumComputer Science PhD studies (unfinished) Computer Science, Computer Science PhD studies (unfinished) Computer Science at University of Tartu
English, Estonian, Russian
Github Skills (17)
sketchup5
mining5
extraction5
machine-learning4
mathematics4
data-mining4
csv-parser4
latex4
python4
csv4
process-mining3
data-science3
browser2
statistics2
react2
Programming languages (4)
Github contributions (5)
Abercus/hajusarvutused_mpi4py
May 2016 - Apr 2018
Contributions:2 PRs, 5 pushes, 1 branch in 1 year 10 months
mpi4pypython
Abercus/devianceminingthesis
May 2019 - Oct 2019
Contributions:5 commits, 4 pushes, 1 branch in 5 months
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