Sayo Oladeji
Helsinki, Finland
Summary
👤
Senior🎓
Top SchoolSayo Oladeji is a product-focused generalist software engineer and serial founder with 11 years of experience building customer-facing platforms across startups, scale-ups and big tech. Currently Co-Founder and CTO at Kreia, he previously led engineering efforts at Swarmia and launched fintech and retail SaaS products as CTO of Branchless Innovation. He combines hands-on full-stack implementation—mobile SDKs, creative template editors, and backend middleware—with product leadership that shipped features like DORA insights, CI visibility, and multi-platform hand-off across Android, iOS and web. Comfortable in both high-velocity startup contexts and larger engineering organizations like Meta, he has repeatedly turned domain knowledge in finance and ad tech into resilient, scalable systems. Based in Helsinki with roots in Nigeria, he pairs entrepreneurial grit with a history of mentoring and community-facing technical work. An inflection many peers note: he moves fluidly between architecting core middleware and shipping polished end-user experiences.
11 years of coding experience
13 years of employment as a software developer
Bsc Computer Engineering, Bsc Computer Engineering at Obafemi Awolowo University
English, Yoruba
Stackoverflow
741reputation
143kreached
17answers
30questions
Github Skills (148)
web-application10
ui-components10
testing10
classifier10
charting10
vaadin-flow10
visualizations10
javascript10
appender10
charts10
polymer10
gwt10
webapp10
vaadin-elements10
ussd10
Programming languages (12)
Github contributions (5)
hextremelabs/sms-sender
Oct 2016 - Oct 2018
Simple Java EE SMS sender with automatic failover between different SMS providers. Written in Kotlin.
Contributions:1 PR, 35 pushes, 2 branches in 1 year 11 months
java-eesms-messagessmsprovidersandroid
oluwasayo/algos-playground
May 2016 - May 2017
Contributions:26 commits, 25 pushes, 1 branch in 1 year
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