Tawan Sierek
Senior Software Architect at Erste Digital
Vienna, Austria
Summary
👤
Senior🎓
Top SchoolTawan Sierek is a Senior Software Architect based in Vienna with 13 years of experience building scalable web and distributed systems across startups and large enterprises. He led complex, business-critical migrations and protocol hot-swaps at Amazon, and earlier improved FBA dangerous-goods workflows to cut inbound lead times from weeks to days. As a co-founder of a VR fitness app he blends product strategy, community building and Unity development with deep backend and full-stack expertise. His career spans high-throughput e-commerce, medical imaging R&D, and fintech reporting—demonstrating an ability to move between domain-specific constraints and platform-scale engineering. Now at Erste Digital he focuses on architecture and delivery while retaining a hands-on approach to implementation and operational continuity. Colleagues describe him as a pragmatic technical leader who turns risky transformations into reliable, measurable outcomes.
13 years of coding experience
13 years of employment as a software developer
Vienna University of Technology
English, German
Github Skills (52)
cron10
periodic-tasks10
mvc10
periodic10
rails10
aws-sdk10
ruby10
sdk10
aws10
html10
activerecord10
ruby-on-rails10
amazon10
amazon-sqs9
concurrent-ruby9
Programming languages (2)
Github contributions (5)
tawan/what-happened
Jan 2016 - Jul 2016
Contributions:131 commits, 125 pushes, 4 branches in 5 months
active-elastic-job/active-elastic-job
Oct 2015 - Sep 2018
Run Rails background jobs or periodic tasks (cron jobs) in Amazon Elastic Beanstalk worker environments. No need for customised container commands.
Contributions:217 commits, 18 PRs, 188 pushes in 2 years 11 months
cron-tasksworkercronawselastic-beanstalk
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