Janno Liivak
Security Engineer (Tech-Lead) at Concise
Tallinn, Harju County, Estonia
Summary
👤
Senior🎓
Top SchoolJanno Liivak is a seasoned security-focused tech lead and software engineer with over a decade of experience building full-stack and mobile applications across JavaScript/TypeScript, Python, Ruby and Java. Currently leading security efforts at Concise after progressing from senior software engineer roles, he pairs hands-on coding (React, Next.js, NestJS, Django, Rails) with practical threat-aware architecture. His background includes long-term product development for eDev and manufacturing software at Katana, giving him a rare mix of embedded/mobile and enterprise web experience. A fast learner and dependable team player, he routinely picks up new APIs and platforms—recently exploring OpenAI integrations—while mentoring teams to ship secure, maintainable systems. Based in Tallinn with a BSc in Applied Computer Science from the University of Tartu, he brings steady delivery and an eye for pragmatic security trade-offs.
10 years of coding experience
24 years of employment as a software developer
BSc Applied Computer Science, BSc Applied Computer Science at University of TartuPõlva Ühisgümnaasium
English, Russian
Stackoverflow
86reputation
5kreached
2answers
2questions
Github Skills (66)
postgresql10
ruby10
ember10
javascript10
rails10
forum10
discourse10
mhealth10
csv8
database8
xml8
excel7
mysql7
json7
oracle7
Programming languages (4)
Github contributions (5)
jannolii/discourse-topic-trade-buttons
Mar 2017 - Feb 2022
Contributions:2 reviews, 8 commits, 12 PRs in 4 years 11 months
jannolii/discourse-bump-topic
Jan 2017 - Sep 2017
Contributions:13 pushes, 1 branch in 8 months
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