Matti Hiljanen
Head Of SRE & Security at Elisa
Helsinki, Finland
Summary
👤
Senior🎓
Top SchoolMatti Hiljanen is a Senior Security Manager at Elisa with 13 years in telecom and software operations, combining a decade-plus of SRE experience with leadership of the Elisa Bug Bounty program. He blends deep infrastructure expertise—automation, IP networks and DNS—with hands-on coding in Perl and Python, and has contributed to PowerDNS’s dnsdist to add metrics, ACL-from-file and TLS session controls. Based in Helsinki, he progressed from NOC technical specialist through systems architecture to security and solution management, delivering pragmatic, auditable systems at scale. Colleagues know his code dialect might be a bit unusual, but it reliably solves real-world operational problems.
13 years of coding experience
5 years of employment as a software developer
MSc Telecommunications, MSc Telecommunications at Teknillinen korkeakoulu-Tekniska högskolan
Github Skills (14)
c-language10
nameserver10
dns10
cprogramming-language10
dns-resolver10
lua9
tls128
mtls8
libtls8
tls138
documentation7
authorisation4
auth4
authority4
Programming languages (8)
Github contributions (5)
PowerDNS/pdns
Mar 2019 - Dec 2020
PowerDNS Authoritative, PowerDNS Recursor, dnsdist
Role in this project:
Back-end Developer
Back-end DeveloperContributions:14 commits, 9 PRs, 10 comments in 1 year 9 months
Contributions summary:Matti primarily contributed to the `dnsdist` component of the PowerDNS project, adding new statistics related to frontend responses and modifying the code to include these metrics. The contributions involved modifying the core logic within `dnsdist-tcp.cc`, `dnsdist.cc`, and the Lua bindings to incorporate the new statistics. Further contributions included adding functionality for setting ACLs from a file and configuring TLS session timeouts. The user also worked on updates to the documentation.
powerdnsrecursordnsdns-serverdnsdist
qvr/tag2influx
Mar 2018 - Jan 2026
Script to copy data from Wireless Tags (http://wirelesstag.net/) API to InfluxDB
Contributions:2 PRs, 10 pushes, 2 comments in 7 years 10 months
influxdbwireless
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.