Bas Vijfwinkel
Product Development & Ad Tech Specialist at Cinarra Systems
Greater Tokyo Area Japan
Summary
👤
Senior🎓
Top SchoolBas Vijfwinkel is a product development and ad tech specialist with over 15 years of hands-on software architecture and large-scale system design experience, currently leading product and integration work for Cinarra in Greater Tokyo. He has deep, practical expertise across the ad tech stack—SSP, DSP, DMP, social and geo-marketing platforms—and has designed mission-critical, high-performance real-time bidding and audience-targeting systems. Bas combines hands-on coding, cloud-native architecture and data analytics with machine learning prototyping and ad-ops to turn complex privacy-safe marketing requirements into production products. He has repeatedly acted as technical lead and integrator for partners including carriers, agencies and third-party platforms, blending strategic planning with day-to-day delivery. A fluent Japan resident for 17+ years with an MA in Japanese and a BSc in Information Science, he brings cross-cultural insight to global product work that few engineers in ad tech can match. Practical, optimistic and analytically driven, he’s known for protecting delivery while exploring new technologies and formats.
11 years of coding experience
9 years of employment as a software developer
MA, Japanese language and culture, MA, Japanese language and culture at Leiden UniversityBsc, Information Science, Bsc, Information Science at TU Delft
English, Japanese, Dutch
Stackoverflow
11reputation
3kreached
1answer
0questions
Github Skills (21)
java7
nintendo-3ds7
3ds7
php-library6
hive6
php6
sql6
apc6
excel5
hadoop5
big-data5
sql-query4
firmware4
presto4
homebrew4
Programming languages (4)
Github contributions (5)
basvijfwinkel/PHPresto
Jan 2015 - Sep 2022
Contributions:38 commits, 23 pushes, 2 branches in 7 years 9 months
basvijfwinkel/PHPExcel
Jan 2015 - Jan 2026
A pure PHP library for reading and writing spreadsheet files
Contributions:2 PRs, 37 pushes, 16 branches in 11 years 2 months
phpphp-librarypure-phpexcelspreadsheet
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