\documentclass[a4paper,10pt]{article}
\usepackage{enumitem}
\usepackage{hyperref}
\usepackage[margin=1in]{geometry}
% \usepackage{date}

% Define variables
%% Job related
\newcommand{\companyName}{RCSS}
\newcommand{\hiringManager}{Hiring Team}
\newcommand{\companyAddress}{Kitchener, ON}
\newcommand{\position}{Part-Time Clerk}

%% Personal
\newcommand{\name}{Murtadha Nisyif}
\newcommand{\address}{Kitchener, Ontario, Canada}
\newcommand{\email}{\href{mailto:mnisyif@gmail.com}{mnisyif@gmail.com}}
\newcommand{\phone}{+1 (519) 502-8463}
% \newcommand{\links}{\href{https://m.nisyif.com}{Website} | \href{https://www.linkedin.com/in/mnisyif}{LinkedIn} | \href{https://www.github.com/mnisyif}{GitHub}}

% Header
\begin{document}
\noindent \textbf{\huge \name} \\
\address \\
\email \\
\phone \\
% \links \\
\vspace{1em}

\noindent \today \\

\noindent \hiringManager \\
\companyName \\
\companyAddress \\

\noindent Dear \hiringManager, \\
\vspace{1em}

\input{sections/01-intro.tex}
\vspace{1em}

\input{sections/02-body.tex}
\vspace{1em}

\input{sections/03-closing.tex}

\end{document}