Douglas Tan
Principal Software Engineer at Connascence
Singapore
Summary
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SeniorDouglas Tan is a Principal Software Engineer based in Singapore with 14 years of experience delivering pragmatic, production-ready systems in agile environments. Currently at Mastercard, he focuses on driving architectural quality and scalable delivery while balancing hands-on coding with technical leadership. He also runs Connascence, where he built a niche Java SWT desktop application that integrates barcode-enabled keyboards to automate passport data entry for airline check-ins—demonstrating a knack for practical, hardware-adjacent solutions. Comfortable across desktop and enterprise stacks, he brings deep experience in integrating legacy peripherals with modern workflows. Known for turning operational constraints into reliable software, he blends entrepreneurial initiative with large-scale corporate engineering discipline.
14 years of coding experience
Stackoverflow
72reputation
17kreached
3answers
1question
Github Skills (23)
filesystem9
mysql-database9
userspace9
kernel8
linux7
macos6
firebase-cloud-messaging6
sinatra6
rest6
http-request6
memcached6
facebook-graph-api6
ruby6
http-delete6
facebook6
Programming languages (3)
Github contributions (5)
bianster/mysqlfs
May 2017 - Mar 2024
MySQLfs is Linux userspace filesystem which stores data in a MySQL database. It uses FUSE to interface with the kernel.
Contributions:1 PR, 1 push, 1 comment in 6 years 11 months
filesystemkernellinuxmysql-databaseuserspace
bianster/ib-docker
Aug 2016 - Jun 2018
Contributions:15 commits, 8 pushes, 1 branch in 1 year 10 months
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