PHP is what I use the most in my professional life
Part of my job is maintaining a large MySQL database. It also tends to be my database of choice for any personal project, although I also have limited experience with certain NoSQL solutions.
My language of choice for any non-web application. Other than using it for all my scripting needs, I have also written a handful of small Python applications, primarily for the Linux desktop, such as Caffeine and Pingdom Indicator.
I have successfully completed two university courses in Java. That knowledge has been applied in a few small Android applications.
Youmeet Technologyyoumeet.se 2011-now
As a web developer at Youmeet Technology, I work primarily with a LAMP stack, either maintaining legacy applications or building new scalable and robust solutions using either homegrown or established platforms such as CakePHP and Wordpress.
Luleå University of TechnologySystems Science 2009-now
From LTU's website:
Computer and Systems Science comprise development and construction of information systems for management and administration of organizations. Within the discipline systems architecture, systems integration, systems strategies and applications containing data bases, user interfaces, communication and security are considered.