Vasilis Sakkas
Software Engineer at InstaShop
Katerini Municipality, Macedonia and Thrace, Greece
Summary
👤
Senior🎓
Top SchoolVasilis Sakkas is a senior software engineer and architect with 10 years of experience building backend systems and owning end-to-end services from design to production. Based in Katerini, Greece, he has delivered high-throughput logistics platforms and real-time coordination tooling—most notably architecting a multi-channel WebSocket system and a WhatsApp analytics chatbot at InstaShop. He combines hands-on backend refactors and performance work with full-stack deliveries like a Next.js incident reporting system and an OAuth2 identity provider, showing comfort across ecosystems (NestJS, ASP.NET, Flutter). Known for pragmatic architecture choices and improving long-term maintainability, he also strengthens infrastructure and security for stable operations. An engineer who prefers shipping durable systems, he brings both operational discipline and a habit of automating repetitive tasks to boost team productivity.
10 years of coding experience
1 year of employment as a software developer
Bachelor of Engineering (B.E.), Computer Software Engineering, Bachelor of Engineering (B.E.), Computer Software Engineering at Technological Educational Institute of Thessaly. / TEI of Thessaly
Greek, English
Github Skills (77)
appwrite10
euler10
racket10
octave10
coder10
markdown10
javascript10
dsa-algorithm10
nvidia-docker9
gleam9
sql9
golang9
swift9
python9
ruby9
Programming languages (11)
Github contributions (5)
billsakkas/Notes-iOS-App
Mar 2019 - Oct 2021
A Note-Taking iOS App
Contributions:20 commits, 9 PRs, 7 pushes in 2 years 7 months
swiftiosnote-takingios-app
billsakkas/Website
Oct 2016 - Oct 2019
An AngularJS single page application
Contributions:1 PR, 21 pushes, 1 branch in 3 years
single-page-applicationjavascriptangularjsangularsingle-page
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