\documentclass[DIV=18,BCOR=5mm]{scrartcl}
\usepackage[]{booktabs,array}
\usepackage{tabularx}
\usepackage{helvet}
\usepackage{enumitem}


\renewcommand{\familydefault}{\sfdefault}
\newcommand{\TabularFont}{\footnotesize}
\newcommand{\Abschnitt}[1]{\noindent{\Large #1}}
\newcommand{\MyLeftIndent}{2em}


\renewcommand{\arraystretch}{1.2}
\renewcommand{\labelitemi}{}

\begin{document}
\Abschnitt{IT-Knowledge}\par\smallskip
\noindent\begin{itemize}[leftmargin=\MyLeftIndent]
\item R -- statistical/econometric software package
\item MySQL -- relational database managementsystem
\item MS Excel\,(VBA), MS Word, MS Powerpoint and MS Access
\item Eviews -- statistical/econometric software
\item \LaTeX{} -- a modern typesetting environment
\item  Basic programming skills
\item Linux, Windows usage and configuration skills\par\bigskip
\end{itemize}\par\bigskip

\Abschnitt{Languages}\par\bigskip
\noindent\begin{tabularx}{\linewidth}{@{\kern\MyLeftIndent}l>{\TabularFont}p{2cm}>{\TabularFont}p{2cm}>{\TabularFont}p{3cm}>{\TabularFont}p{3cm}>{\TabularFont}X}
 German & \multicolumn{5}{l}{\TabularFont mother tongue\par\bigskip}\\
 English &  Listening & Reading & Spoken interaction & Spoken production & Writing\\
& C1 (proficient) & C2 (proficient) & B1 (independent) & B1 (independent) & B1 (independent)\par\bigskip\\
French  & Listening & Reading & Spoken interaction & Spoken production & Writing\\
&A2 (basic) & A2 (basic) & A2 (basic) & A2 (basic) & A2 (basic)\\
\end{tabularx}\par
\vspace*{1cm}
\noindent\begin{tabularx}{\linewidth}{@{\kern\MyLeftIndent}l>{\TabularFont}p{2cm}>{\TabularFont}p{2cm}>{\TabularFont}p{3cm}>{\TabularFont}p{3cm}>{\TabularFont}X}
&  Listening & Reading & Spoken interaction & Spoken production & Writing\par\medskip\\
 English & C1 (proficient) & C2 (proficient) & B1 (independent) & B1 (independent) & B1 (independent)\par\smallskip\\
French &A2 (basic) & A2 (basic) & A2 (basic) & A2 (basic) & A2 (basic)\\
\end{tabularx}


\end{document}