test_post_meta.php

<?php
 
remove_action('genesis_loop', 'genesis_do_loop');
add_action('genesis_loop', 'custom_loop');
function custom_loop() {
    echo '<h1 class="entry-title" itemprop="headline">'.get_the_title().'</h1>';
 
 
    echo '<div class="clear"></div>';
    echo '<div class="singlebio">';
 
    echo '<div class="biotop">';
    echo '<div class="one-half singleimage">';
    echo '<img src="' . the_post_thumbnail( 'biography' ). '" />';
    echo '</div>';
    echo '<div class="one-half singleabout ">';
    the_post();
    $con=get_the_content();
 
    echo '<p>'.$con.'</p>';
    echo '</div>';
    echo '<div class="clear"></div>';
    echo '</div>';
 
    echo '<div class="biomiddle">';
    $rows = get_field('member_quality');
    if($rows)
    {
 
        foreach($rows as $row)
        {
            echo '<div class="biomid">';
            echo '<div class="one-half">';
            echo '<div><b>'.$row['heading'].'</b></div>';
            echo '</div>';
            echo '<div class="one-half">';
            echo '<div>'.$row['description'].'</div>';
            echo '</div>';
            echo '<div class="clear"></div>';
            echo '</div>';
 
        }
 
    }
    echo '</div>';
 
 
    echo '<strong>Career summary</strong>';
    echo '<div class="biobottom">';
    $pgmeta = get_post_custom();
    var_export( $pgmeta );

    // You should get an array returned with all the custom fields in it. One of them should be  "career_summary".
    // If $pgmeta is empty, then you might have something out of alignment with the $post object.
    // Might need to declare " global $post; ", then use the $post->ID parameter in the get_post_custom() function.
    
    // If you can see the right custom field in the array, then you should be able to use that get_field() function. 
    // get_field(), too, might need the post ID. I can't recall


/*    $rows = get_field('career_summary');
    if($rows)
    {
 
        foreach($rows as $row)
        {
            echo '<div class="biomid">';
            echo '<div class="one-third">';
            echo '<div><b>'.$row['year'].'</b></div>';
            echo '</div>';
            echo '<div class="one-third">';
            echo '<div>'.$row['position'].'</div>';
            echo '</div>';
            echo '<div class="one-third">';
            echo '<div>'.$row['description'].'</div>';
            echo '</div>';
            echo '<div class="clear"></div>';
            echo '</div>';
 
        }
 
    }
*/
    echo '</div>';
 
    echo '</div>';
}
remove_action('genesis_before_post_content', 'genesis_post_info');
 
genesis();
?>

This https://gist.github.com/pmgllc/cfc68efe39f6fca8a48b doesn't return a value for $summary_year

The dump from your code does show a ton of fields. Quality and Summary.