Carl Lönndahl
Chief Strategy Officer (CSO)
Stockholm, Sweden
Summary
👤
Senior🎓
Top SchoolCarl Lönndahl is a strategic executive with 17+ years driving business and digital transformation at Nordnet, where he scaled customers 47.5x, led major product launches, and oversaw pension assets north of $17.5B. He blends financial strategy, operations and automation—delivering multi-million dollar savings through process digitisation, system consolidation and automation programs that replaced dozens of FTEs. A repeat founder and active investor, he has board experience across fintech and F&B with successful exits (Åland Distillery, Spirits News) and a knack for turning niche ventures into repeatable outcomes. Known for exceptional people leadership—consistently top eNPS scores and rapid talent development—he thrives at the intersection of people, process and technology while quietly signing his GitHub bio “kʀyᴘᴛᴏaɴᴀʀᴄʜisᴛ,” hinting at broader tech curiosity beyond his financial focus.
11 years of coding experience
3 years of employment as a software developer
Certified Board Director / Certifierad Styrelseledamot, Business, Certified Board Director / Certifierad Styrelseledamot, Business at StyrelseakademinProgram for Young Professionals, Program for Young Professionals at Novare Veckans Affärer
English, Swedish
Stackoverflow
101reputation
0reached
0answers
0questions
Github Skills (39)
ctf10
timing-attacks10
rsa10
decoding10
post-quantum-cryptography10
vault10
secrets9
cryptography9
go9
encryption9
access-management8
python8
lightning7
golang7
bitcoin7
Programming languages (5)
Github contributions (5)
grocid/CTF
Jul 2016 - Apr 2019
🏴 Collection of CTF solutions
Contributions:47 commits, 46 pushes, 1 branch in 2 years 9 months
ctfctf-solutionsrsa
grocid/weight-4-polynomial-finder
Nov 2019 - Apr 2021
Contributions:16 commits, 5 PRs, 9 pushes in 1 year 5 months
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