\documentclass[a4paper,10pt]{article}

% settings
% ---------------------------------------------------------
\usepackage[utf8]{inputenc}
\usepackage{latexsym}
\usepackage[empty]{fullpage}
\usepackage[usenames,dvipsnames]{color}
\usepackage{verbatim}
\usepackage{hyperref}
\hypersetup{
	colorlinks, %
	citecolor=black %
	filecolor=black, %
	linkcolor=black, %
	urlcolor=mygreylink %
}
\urlstyle{same}
\definecolor{mygrey}{gray}{.85}
\definecolor{mygreylink}{gray}{0.30}
\textheight=9.0in
\raggedbottom
\raggedright
\setlength{\tabcolsep}{0in}

% adjust margins
\addtolength{\oddsidemargin}{-0.375in}
\addtolength{\evensidemargin}{-0.375in}
\addtolength{\textwidth}{0.5in}
\addtolength{\textheight}{0.75in}

% custom commands
%---------------------------------------------------------
\newcommand{\resitem}[1]{\item #1 \vspace{-2pt}}
\newcommand{\resheading}[1]{{\large \colorbox{mygrey}{\begin{minipage}{\textwidth}{\textbf{#1 \vphantom{p\^{E}}}}\end{minipage}}}}
\newcommand{\ressubheading}[4]{
\begin{tabular*}{6.38in}{l@{\extracolsep{\fill}}r}
			\textbf{#1} & #2 \\
		    \textit{#3} & \textit{#4} \\
\end{tabular*}\vspace{-4pt}}

%---------------------------------------------------------
%---------------------------------------------------------
%---------------------------------------------------------

\begin{document}

\newcommand{\mywebheader}{
\begin{tabular*}{6.8in}{l@{\extracolsep{\fill}}r}
			\textbf{\LARGE Aldrik Ramaekers} & \href{mailto:aldrik.ramaekers@protonmail.com}{aldrik.ramaekers@protonmail.com}\\
			{Senior Software Engineer} & \href{http://www.memes.com/}{http://www.memes.com/} \\
			\end{tabular*}
\\
\vspace{0.1in}}

\mywebheader

% new to old
\resheading{Companies}
	\begin{itemize}
		\item
			\ressubheading{\href{https://www.yunify.nl/}{Yunify Applications}}{}{{Software Engineer Intern}}{2018 - 2019}
	\end{itemize}
	
% new to old
\resheading{Education}
	\begin{itemize}
		\item
			\ressubheading{\href{https://www.leeuwenborgh.nl/}{ROC Leeuwenborgh - Sittard}}{}{{Software development \& Media design}}{2016 - 2019}
	\end{itemize}
	
\resheading{Skills}
		\begin{description}
			\item[Specialties:] {\footnotesize parallelism (multithreading), distribution, game-development, mobile applications, real time, IPv4/IPv6 networking, security, debugging, project maintenance, coding rules and philosophy, self-discipline}
			\item[Computer languages:] {\footnotesize C++, C, C\#, Go, PHP, JavaScript, SQL, Shell Scripts}
			\item[Operating systems:] {\footnotesize Linux (Debian), Windows 7/8.1/10}
			\item[Networking:] {Ethernet, WiFi, IPv4, IPv6, TCP, UDP, routing, filtering, VPN, HTTP, FTP}
			\item[Software:] {Git, Visual Studio 15/17, Visual Studio Code, {\LaTeX}, Sublime Text 2, CMake, OpenVPN, Wireshark, Apache, MySQL }
			\item[Languages:] {English(written, spoken), Dutch (native)}
		\end{description}

\resheading{Projects}
		\begin{itemize}
			\resitem{\href{https://play.google.com/store/apps/developer?id=Aldrik+Ramaekers}{https://play.google.com/store/apps/developer?id=Aldrik+Ramaekers} - Released android apps}	
		\end{itemize}

% new to old
\resheading{Professional Experience}
		\begin{itemize}
			\item
				\ressubheading{\href{https://www.yunify.nl/}{Yunify Applications}}{}{Software Engineer Intern}{February 2018 - February 2019}
				{ \footnotesize
					\begin{itemize}
						\resitem{Back-end \& front-end webdevelopment and maintenance}
						\resitem{\textbf{Technical enviroment:} C\#, HTML, CSS, MSSQL, Linux, Windows 10}
					\end{itemize}
				}
		\end{itemize}
\end{document}