\usepackage[
    backend=biber,
    style=alphabetic,
    backref=true,% Show page numbers where citations appear
    maxbibnames=99,% Show all authors in bibliography
    maxalphanames=1,% Show only one author in citations keys
    maxcitenames=1,% Show only one authors in citations in text
]{biblatex}

\renewcommand*{\labelalphaothers}{} % Remove "et al." in citations

% Define citation style to be [Author, Year]
\DeclareLabelalphaTemplate{
    \labelelement{
        \field[final]{shorthand}
        \field{labelname}
        \field{label}
    }
    \labelelement{
        \literal{,\addhighpenspace}
    }
    \labelelement{
        \field{year}
    }
}

% Remove some fields from bibliography
\AtEveryBibitem{
    \clearfield{doi}%
    \clearfield{day}%
    \clearfield{location}%
    \clearfield{month}%
    \clearfield{series}%
}