Jerguš Greššák
Summary
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SeniorJerguš Lejko is a founder and software leader based in San Francisco with a decade of hands-on experience building and scaling web applications. As founder of TopK since November 2024, he combines product vision with engineering stewardship to ship reliable software in fast-growing environments. He previously advanced at Pinecone from Senior to Staff Software Engineer, and led teams at Parrot as Software Engineer and Engineering Manager, demonstrating a track record of mentoring engineers and delivering impact across frontend and backend systems. His career spans startups and product platforms such as ContracTool, CodeFire, and KBS Development, underscoring a full-stack focus and a bias for practical, scalable solutions. With a BS in Computer Science from the University of Bristol and earlier studies in software engineering in the UK and Slovakia, he blends international training with a hands-on, collaborative approach—and he's always open to a chat.
11 years of coding experience
Github Skills (44)
bluetooth-keyboard10
ime10
keyboard10
bluetooth10
logitech10
frontend3
ais3
react3
nextjs3
net-standard-22
typescript2
ubuntu2
storage2
console2
pico-82
Programming languages (4)
Github contributions (5)
jergusg/SK-Prog-Keyboard
Sep 2017 - May 2020
Contributions:5 releases, 46 commits, 39 pushes in 2 years 8 months
jergusg/k380-function-keys-conf
Dec 2015 - Nov 2021
Make function keys default on Logitech k380 bluetooth keyboard
Contributions:2 releases, 10 commits, 5 PRs in 6 years
logitechbluetoothimebluetooth-keyboardkeys
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