The Team


We are a highly experienced team, that loves problem solving, coding and last, but not least, discussions. To discuss and also test your ideas is the best way to challenge them and widen your knowledge!


Our previous experience has been everything from building highly scalable and fault tolerant systems for the Swedish payment industry, work with health care projects and startups to design and development of a cloud-based AI service to optimize material and energy consumption in laser cutting of sheet metal parts.


Erik Stenman

CEO
  • PhD in Computer Science from Uppsala University.
  • Former CTO of Klarna. Built the Software Engineering Department from scratch in 2005 to about 80 people in 2010.
  • His vast experience and skills within both frontend and backend languages and architecture makes him a complete hacker.

Tobias Lindahl

Consultant
  • Master of Science in Engineering Physics from Uppsala University.
  • Former member of Klarna's Technical Advisory Board and Architect group.
  • An expert backend hacker within Erlang, compilers, virtual machines, optimization and runtime systems.

Anna Attefall

Consultant Manager
  • Master of Science in Computer Science from Uppsala University.
  • Team leader, project manager and CEO of startup companies.
  • Wide experience from IT, Swedish and Nordic Health care and medical technology.
  • Former hacker (and still at heart).

Richard Carlsson

Consultant
  • Master in Computer Science from Uppsala University.
  • Member of Klarna‚Äôs core team for many years.
  • Has deep backend hacker skills within Erlang, compilers, virtual machines, optimization and runtime systems.
  • Has contributed to many parts of the Erlang standard libraries, compiler, runtime system, and the Erlang language itself.

Jim Wilenius

Consultant
  • PhD in Computer Science from Uppsala University.
  • Previously headed up the R&D team at Tomologic, responsible for designing and implementing Tomologic's core optimization service.
  • His specialities are foremost within Java, algorithms, AI, machine learning and architecture.

Christer Jonsson

Consultant (Subcontractor via Happi Hacking)
  • Master in Computer Science from Uppsala University.
  • Extensive experience in designing and building high performance backend systems for the gaming and leisure industry, with high requirements on handling huge amounts of data with short response time. Passionate about building low latency fault tolerant distributed systems at a scale.
  • Specialities include software architecture, Java, multithreading, performance, network programming, object oriented programming and data storage.

Accelerate your project by giving us a call today!


Happi Hacking AB
Munkbrogatan 2 5 tr
111 27 Stockholm