Łukasz Harężlak
Trader at Optiver
Sydney, New South Wales, Australia
Summary
👤
Senior🎓
Top SchoolŁukasz Harężlak is a trader and technologist with 12 years of experience building and trading electronic market-making systems, currently trading at Optiver in Sydney. He transitioned from software engineering to trading, combining deep full-stack and distributed-systems experience with live derivatives trading expertise (including S&P500 index options). As a startup co-founder he architected a globally distributed, real-time prediction market—designing scalable infrastructure, CI/CD pipelines, and real-time front-end integrations—bringing a product-minded approach to engineering. He holds an M.Sc. in Computer Software Engineering from the University of Amsterdam and is known for applying low-latency, performance-tuned software practices to both trading and consumer-facing products.
12 years of coding experience
5 years of employment as a software developer
Charles III University of Madrid (Universidad Carlos III de Madrid)Bachelor of Science (B.Sc.), Computer Science, Bachelor of Science (B.Sc.), Computer Science at The Silesian University of TechnologyMaster of Science (M.Sc.), Computer Software Engineering, 8.5/10, Master of Science (M.Sc.), Computer Software Engineering, 8.5/10 at University of AmsterdamA course in Design of Interactive Systems, Computer Software Engineering, -, A course in Design of Interactive Systems, Computer Software Engineering, - at Technical University of Denmark
Spanish, Polish, English, German
Stackoverflow
1,645reputation
164kreached
3answers
12questions
Github Skills (24)
ruby-on-rails6
server6
connections6
tornado6
websocket6
python6
sidekiq6
redis6
architecture6
django3
django-admin3
python-interface3
amazon-web-services2
boto2
amazon2
Programming languages (2)
Github contributions (5)
Instamrkt/slate
Jan 2015 - Mar 2016
Contributions:117 pushes in 1 year 2 months
haren/email
Nov 2015 - Dec 2015
Contributions:95 pushes, 1 branch in 8 days
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