I have been working with web systems since 1998, mainly with Perl and Python. I know my way around a fair number of languages and database technologies, most commonly Postgres and MySQL.
I have designed, developed and maintained some of Opera Software's (opera.com) busiest web sites and services/APIs with millions of users and billions of page views per month, when page views were still "a thing". This includes a Single Sign On system and an OAuth 1.x provider.
Currently I'm the lead developer for Opera's News recommendations engine, Opera Discover. Started working on this product from a blank slate, with two colleagues, four years ago. We're serving billions of impressions per month with 20+ MAU. Most Opera products rely on our content recommendation service.
Introduced configuration management in Opera's Services department in 2010. We have a large scale puppet-based infrastructure now, comprised of more than 100 modules, serving hundreds of hosts for many teams.
Systems scalability is one of my strongest specialties. I know Javascript, HTML and a touch of CSS. My frontend skills could surely improve :-)
You can take a look at:
I'm particularly proud of small things, for example:
Thanks for reading this!