Align div next to two other grouped div's - css

Question

How can I get that yellow box aligned like on the picture? I tried some stuff with table cells but it kinda destroyed everything. I also played a bit with the float conditions but the results were horrible too. Can you help me?
Here's my code:
HTML
<div class="job_board">
<div class="job_box">
<span class="job_title_working_field"> <!-- Just made that span for grouping but it's unnecessary. -->
<div class="job_title"><h1>Product Development <span class="light">(m/w)</span></h1></div>
<div class="working_field">Fahrzeugtechnik · Mechatronik · Maschinenbau</div>
</span>
<div class="slide_button"></div>
</div>
</div>
CSS
.light {
font-weight: normal;
}
.job_box {
width: 100%;
padding: 30px 50px;
background-color: #082730;
color: white;
text-align: center;
display: table;
}
.working_field {
font-weight: bold;
margin: 0;
font-size: 0.8em;
}
span.job_title_working_field {
table-cell;
}
.slide_button {
position: absolute;
width: 50px;
height: 100%;
background: yellow;
display: table-cell;
}
JSFiddle

Answer 1

Since .slide_button is within an element, you would simply relatively position the parent element:
.job_box {
position: relative;
width: 100%;
padding: 30px 50px;
background-color: #082730;
color: white;
text-align: center;
display: table;
font-family: "Helvetica", sans-serif;
}
And then absolutely position the yellow .slide_button element at the top/right - relative to the parent.
UPDATED EXAMPLE HERE
.slide_button {
position: absolute;
right: 0;
top: 0;
width: 50px;
height: 100%;
background: yellow;
}
If you look at the above example, you will notice that a horizontal scrollbar is present. If you want to remove this, use box-sizing:border-box in order to include the padding within the .job_box element's dimension calculations.
UPDATED EXAMPLE HERE
.job_box {
box-sizing:border-box;
-moz-box-sizing:border-box;
}
It's also worth noting that I removed the default 8px margin on the body element.. body{margin:0}

Answer 2

I changed the markup order a little and updated the css
you are combining too many styles: table-cell + absolute + float don't mix well
http://jsfiddle.net/pixelass/3Qqz4/2/
HTML:
<div class="job_board">
<div class="job_box">
<div class="slide_button"></div>
<div class="job_title_working_field">
<div class="job_title">
<h1>Product Development <span class="light">(m/w)</span></h1>
</div>
<div class="working_field">Fahrzeugtechnik · Mechatronik · Maschinenbau</div>
</div>
</div>
</div>
CSS:
* {
margin: 0;
padding: 0;
}
.light {
font-weight: normal;
}
.job_box {
width: 100%;
background-color: #082730;
color: white;
text-align: center;
display: block;
font-family:"Helvetica", sans-serif;
position: relative;
height: 120px;
vertical-align: top;
}
.job_title h1 {
margin: 0;
}
.working_field {
font-weight: bold;
margin: 0;
font-size: 0.8em;
}
.job_title_working_field {
padding: 30px 50px;
}
.slide_button {
width: 50px;
height: 100%;
background: yellow;
float: right;
}