<apex:component id="Job_Applicant_Details" controller="Job_Applicant_DetailsController">
<apex:attribute name="fName" type="String" assignTo="{!FullName}" description="Fullname of the applicant"/>

<apex:outputpanel id="panel" >
    <apex:form id="frmApplicant">
        <apex:outputlabel value="Name"/><br></br>
        <apex:inputtext id="FullName" value="{!fName}"/>
</apex:form>
</apex:outputpanel>

</apex:component>

<c:Job_Applicant_Details/>
        <apex:form >
            <apex:outputpanel >
                        <apex:outputlabel value="Skills"/>
                        <br></br>
                       <apex:inputfield id="Skills" value="{!Job_Applicant_Details__c.Skills}"/>
                        <br></br>
                   <apex:commandbutton id="btn_submit" value="Submit"/>
            </apex:outputpanel>
            </apex:form>