Personio

You can use such a shortcode to display the employees list or grid. By using the attributes you can filter the fields with a regular expression. You have to set up these fields in Personio. But on the settings page of this plugin you can see the available fields.

[personio_team office=Berlin gender=male custom_999999=foo]

If you need addtional filtering then you can add a hook like the following.

if (!function_exists('wp_personio_filter_team')) {
    function wp_personio_filter_team($employees)
    {
        return array_filter($employees, function($employee){
            return $employee->attributes->gender->value == 'male';
        }, ARRAY_FILTER_USE_BOTH);
    }

    add_filter('wp_personio_filter_team', 'wp_personio_filter_team');
}

After installing and activating this plugin you need to enter the client ID and secret on the settings page. You can get these from Personio.