Joonas Pessi
Staff Software Engineer (SDE III) at Mapbox
Tampere, Pirkanmaa, Finland
Summary
👤
Senior🎓
Top SchoolJoonas Pessi is a hands-on Staff Software Engineer with 12 years of experience building large-scale data and IoT systems, currently shaping Mapbox’s basemap infrastructure that serves 700M+ monthly users. He specializes in AWS-driven data pipelines, cost-efficient cloud operations, and planet-scale geospatial processing (Airflow, Spark), with production experience supporting automotive clients like Toyota and BMW. Previously he led global IoT and data platform efforts at Cargotec, architecting systems that ingest billions of measurements daily and exposing robust APIs for devices and fleets. Comfortable both in deep engineering and cloud architecture roles, he codes in Python and TypeScript and has a background spanning embedded C++ to full-stack JavaScript. Based in Tampere, Finland, he pairs academic training in automation and software engineering with recurring on-call ownership for mission-critical services—an engineer who thrives where large data, reliability, and cost constraints intersect.
12 years of coding experience
14 years of employment as a software developer
Master's Degree, Automation and Software Engineering Technology, Master's Degree, Automation and Software Engineering Technology at Tampere University of Technology 1965-2018Exchange, Computer Science, Exchange, Computer Science at National University of Singapore
English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (28)
geospatial7
spatial-analysis7
java7
cluster-computing7
broker7
eclipse6
python6
scala6
scale5
gis5
large-scale5
mosquitto4
mqtt4
iot3
spatial-query3
Programming languages (4)
Github contributions (5)
joonaspessi/rotfl
Sep 2013 - Jan 2014
Contributions:33 commits in 3 months
fleet-managementlaravelroombafleet
joonaspessi/aoc
Dec 2023 - Jan 2025
Contributions:77 pushes in 1 year 1 month
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