\PassOptionsToPackage{dvipsnames}{xcolor}
\documentclass[tikz,border=5pt]{standalone}
\usetikzlibrary{decorations.text}
\usepackage{libertine}

\usepackage{tikz,tkz-euclide}
\usepackage{siunitx}
\usetikzlibrary{svg.path}
\usetkzobj{all}
\usetikzlibrary{positioning,calc,topaths}
\usepackage{amsfonts}
\usepackage{pgfplots}
\usepackage{tkz-fct}
\pgfplotsset{compat=1.15}
\usepackage{helvet}
\SetSymbolFont{letters}{bold}{OML}{cmss}{bx}{it} %cmbr or cmss
\renewcommand{\familydefault}{\sfdefault}
%\usepackage[utf8]{inputenc}

\definecolor{dsa-blue}{rgb}{0.133333, 0.27451, 0.501961}
\definecolor{dsa-sun}{rgb}{0.917647, 0.741176, 0}
\definecolor{dsa-crimson}{rgb}{0.85098, 0.0941176, 0.121569}
\definecolor{dsa-turquoise}{rgb}{0.352941, 0.603922, 0.831373}

\begin{document}
\begin{tikzpicture}
\begin{scope}
\draw[color=dsa-turquoise,fill=dsa-turquoise] (0,0) circle (3.5cm);
\draw[color=dsa-turquoise,fill=white] (0,0) circle (2.6cm);
\end{scope}

%\draw[color=gray] (0,0) circle (2.5cm) node {\Huge\bfseries MTG};
%\node at (0,1.2) {\large\bfseries\color{gray} founded};
%\node at (0,-1.2) {\large\bfseries\color{gray}\oldstylenums{2012}};

\begin{scope}[xshift=-3.5cm,yshift=3.7cm,scale=0.8]
\filldraw[color=dsa-blue] (2.08,-5.33) -- (3.35,-5.01) -- (3.83,-4.13) -- (2.83,-4.3) -- cycle;
\filldraw[color=dsa-turquoise] (2.83,-4.13) -- (3.83,-4.04) -- (3.26,-3.45) -- (2.25,-3.47) -- cycle;
\filldraw[color=dsa-sun] (3.93,-4) -- (4.15,-3.31) -- (3.65,-2.77) -- (3.41,-3.37) -- cycle;
\filldraw[color=dsa-crimson] (4.78,-3.78) -- (4.02,-4) -- (4.26,-3.33) -- (4.93,-3.19) -- cycle;

\draw[draw=none] (3.7,-4.4) node[anchor=west]
{\hspace{0.1mm}
\sffamily \fontsize{11} {0}\selectfont {}{\bf {\color{dsa-crimson} D}octoral} \hspace{-3.5mm}};

\draw[draw=none] (3.7,-4.9) node[anchor=west]
{\hspace{0.1mm}
\sffamily \fontsize{11} {0}\selectfont {}{\bf {\color{dsa-crimson} S}tudent} \hspace{-4.5mm}};

\draw[draw=none] (3.7,-5.4) node[anchor=west]
{\hspace{0.1mm}
\sffamily \fontsize{11} {0}\selectfont {}{\bf {\color{dsa-crimson} A}ssociation}};

\draw[draw=none] (3.75,-6.1) node[]
{\hspace{1mm}
\sffamily \fontsize{12} {0}\selectfont {}{\bf
{\color{dsa-blue} U}
{\color{dsa-blue} E}
{\color{dsa-blue} F}
\hspace{0.5mm}
{\color{dsa-crimson} D}
{\color{dsa-crimson} S}
{\color{dsa-crimson} A}
}
};
\end{scope}


%\draw[color=gray] (0,0) circle (3.6cm);
\path
    [
        postaction={
            decorate,
            decoration={
                raise=-3pt,
                text along path,
                text align/fit to path stretching spaces=true,
                reverse path=true,
                text align/align=center,
                text align/left indent={9.5818575934488693773110623190025cm}, % \pi * radius
                text align/right indent={0.0cm},
                text={|\bfseries \fontsize{12} {0}\selectfont {} | University of Eastern Finland}
            }
        }
    ]
    [
        postaction={
            decorate,
            decoration={
                raise=-5.5pt,
                text along path,
%               text align/fit to path stretching spaces=true,
%               reverse path=true,
                text align/align=center,
                text align/left indent={9.7818575934488693773110623190025cm}, % \pi * radius + .2cm
                text align/right indent={0.5cm},
                text={|\bfseries \fontsize{12} {0}\selectfont {} |  Doctoral Student Associationn}
            }
        }
    ]
(0,0) circle (3.05cm);
\end{tikzpicture}
\end{document}