Thomás Sieczkowski
Software Development Manager at Shopify
Stockholm, Sweden
Summary
👤
Senior🎓
Top SchoolThomás Sieczkowski is a seasoned software development manager and former CTO with 11+ years building and scaling product-led engineering teams across startups and global platforms. Currently leading Shopify Email and previously creating Shopify Forms, he combines deep product strategy, tech excellence and team health to ship high-throughput systems (Shopify Email sends ~1B emails/month). At Spotify he drove ML-backed acquisition optimizations and led a cross-discipline senior squad to deliver features like Lyrics that materially improved conversion. As CTO of Todo Cartões he scaled systems and people to support ~$200M in gift card transactions and played a direct role in an acquisition due diligence. Comfortable hiring and developing leaders, he blends hands-on architecture judgment with a focus on enabling autonomy and measurable business impact.
11 years of coding experience
9 years of employment as a software developer
Disruptive Innovation / Strategy, Disruptive Innovation / Strategy at Harvard Business SchoolBachelor of Science (BS) Information Systems, Bachelor of Science (BS) Information Systems at Pontifícia Universidade Católica do Rio Grande do Sul
English, Spanish, Portuguese
Github Skills (66)
dashboard10
postgresql10
flask10
clojure10
data-visualization10
database10
mysql10
analytics10
slack10
fastest10
data-analysis10
visualization10
metabase9
sql9
yum9
Programming languages (6)
Github contributions (5)
thomashs/network_monitor
Oct 2015 - Oct 2016
Contributions:6 commits, 1 push, 1 issue in 11 months
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