09/23/2025 updated
JL
Premium member
100 % availableSenior Software Engineer (Ruby on Rails, Python, Django, Go, JavaScript)
Berlin, Germany
Worldwide
About me
With over 25 years of experience, I have specialised in web applications, more in backend than frontend, but I have experience in desktop and mobile as well. I value transparency and openness, teamwork, code and software quality, learning, and helping others learn and succeed.
JavaScript (Programming Language)Amazon Web ServicesC++ (Programming Language)Software QualityWeb DevelopmentDjango Web FrameworkInterpersonal SkillsPython (Programming Language)PostgreSQLMySQLNoSQLRuby On RailsRubySoftware EngineeringSQL DatabasesTypeScriptReactJSBackendVue.jsHerokuTeam-workingFront End Software DevelopmentGolangProgramming Languages
My background is in C++ and C, but more recently I have used Ruby and Ruby on Rails, Python and Django, JavaScript both in the back-end and front-end, also with React.js and Vue.js, Go (Golang) and TypeScript, among many other technologies.
I am well versed in SQL databases, mostly PostgreSQL and MySQL lately, and have used several NoSQL databases. In the cloud, I have used AWS and Heroku.
I mostly help my clients by implementing software but with various roles in the past I have also helped them become more agile, elevate their overall team skills, move software into the cloud, plan projects, recruit new developers, and adopt good and transparent communication practices, to name a few of my non-programming contributions.
Please see my CV for more detailed list of my skills and what projects I have used them in.
Languages
DeutschGoodFinnischNative speakerEnglischFluentFranzösischFluent