2020-03 - present: Full time software engineer at Meta.

2016-11 - 2020-03: Full time software engineer at Lyft (storage team).

2011-11 - 2016-11: Full time software engineer at Twitter (storage team ~ 3 years, devtools for ~ 2 years). Main original author of manhattan (distributed storage system).

2009-05-11 - 2011-11, employed full-time as a backend developer at Spotify (www.spotify.com) writing mostly Python, C++ and some Java.

Mid-2004 to 2009-05-10, employed full-time at Picsearch (www.picsearch.com) writing predominantly production, often mission-critical, C/C++ and Python code.

Was a co-founder of a private business (InfiDyne Technologies - www.infidyne.com) from 1999 to ~ 2009. My work in relation to InfiDyne has included system and network administration, end-user IT support, ISP services (web hosting and colocation) and software development for both internal use and for clients.

Late 2006 to late 2008/early 2009 (on the side of the full-time position), done system administration centric consulting for a European online auction site.

Implemented most of the backend for MobiGear (formerly www.mobigear.se - no longer maintained by the owner), a Swedish mobile content provider.

Have spent three summers working with C/C++ and Java development in the form of summer jobs. Two of these summers were spent at the same company (MIMER - a relational database software company).

Self-taught from an early age: at 8 years old I began programming in BASIC.

Significant experience in Python, Golang, Java, C++, C, Ruby, (Perl, sort of).

Have written a large amount of concurrent multi-threaded code.

Have written and worked with reactor based asynchronous I/O code (Python w/ Twisted, C/C++).

Some experience with Clojure, Common Lisp, various Scheme:s, Smalltalk:s (Squeak/VisualWorks mostly), Erlang, PHP.

Some knowledge of Haskell, Ocaml, Self, Eiffel.

Experience with normalized deployments using things like FAI, puppet, cfengine.

Experience with software packaging for several package management systems (mainly dpkg, ports, pkgsrc).

Wrote a package manager for pkgsrc.

Active user/administrator of the following operating systems:

Past or partially active user of:

Historically have had experience with DOS and OS/2.

Some very limited experience with other operating systems such as other BSDs and commercial Unixes.

Actively persuing an interest in Cassandra.

Have been an active user of PostgreSQL and MySQL (including 100+ GB databases and real-time sensitive situations).

Mixed bag of historical db experience, relational and otherwise (MIMER, OzoneDB, ZODB, Magma, others).

General interest in learning new programming languages and methodologies. Big believer in expressive languages that allow code compression and minimize boilerplate/repetition.

Interested in virtual machine implementation and garbage collection techniques. Have dug into G1/CMS a bit on my free time; loving what I read about Azul’s GC.

Interested in operating system design and implementation.

Other interests include philosophy, skepticism, critical thinking, cinema.

After finishing the Natural Science program at Fyrisskolan in Uppsala, Sweden, I attended the University of Maryland, College Park, USA for one year, majoring in Computer Science. Decided to re-focus on running InfiDyne full-time after the first year.

Fluent in English and Swedish.

Tourist level knowledge of German.

Some knowledge of Esperanto, thlingan-Hol.