Joni Lepistö
Senior Software Engineer at Sleek Oy
Tampere, Pirkanmaa, Finland
Summary
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Senior🎓
Top SchoolJoni Lepistö is a Senior Software Engineer and architect based in Tampere, Finland, with 8 years of experience designing secure embedded systems, cryptography, and resilient communications. He specializes in Rust and has delivered security-focused dataplane and crypto components across the full stack—from userspace to device drivers—for products like ultra-secure network gateways and passive EW sensors. Joni blends hands-on engineering with team leadership, having led in-house tool development for SoC workflows and mentored peers while participating in recruitment. He thrives on demanding projects that require seeing the big picture of complex systems and is known for knowledge sharing and dependable delivery. An uncommon strength is his mix of applied ML/data-driven tooling experience from SoC development with deep embedded security expertise, enabling pragmatic, measurable improvements across product lifecycles. Contactable by email for business inquiries, he champions “Rust for a more secure tomorrow.”
8 years of coding experience
4 years of employment as a software developer
B.Sc. (Tech.), Signal Processing, Embedded systems, B.Sc. (Tech.), Signal Processing, Embedded systems at Tampere University
Finnish, English, Swedish
Github Skills (35)
noise10
atmega9
attiny8
crypto8
cryptography8
gitlab8
security8
devops7
golang7
cicd7
vue7
bitbucket7
microchip7
arduino7
hal7
Programming languages (4)
Github contributions (5)
jjstoo/seam-carver
Apr 2020 - Nov 2020
Contributions:6 releases, 46 commits, 33 pushes in 6 months
jjstoo/qimg
Nov 2020 - Feb 2021
Contributions:5 releases, 53 pushes, 5 branches in 3 months
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