Hello people! I have completed my master's a month ago! i am actively looking for salesforce developer job! I am at level 0 in terms of experience! although i have 1 year of experience! but whenever i see any applications i always see the minimum requirement of 2 years and above! I have been looking for like months now! are there no opportunities for freshers in salesforce? or is there some other approach i need to follow! I would be appearing for Salesforce Developer - I certification this month! please guide me so that i can find a job of my interest! Thank you

<apex:page standardcontroller="Position__c">

    <p>This map shows the locations of candidates who have 
       applied for the {!Position__c.Name} position.</p>

    <!-- For development use only.
         Add a Google API key to use in production. See 
         https://developers.google.com/maps/documentation/javascript/tutorial 
         for details of how to obtain a Google API key. -->
    <apex:includeScript value="https://maps.googleapis.com/maps/api/js"/>
    
    <script type="text/javascript">
        var applicants = [];
        var countApplicantsGeocoded = 0;
        var map;
        var mapBoundary;
        var geocoder;
        var applicantInfoPanel = new google.maps.InfoWindow();
        
        function loadMap() {
            var mapCanvas = document.getElementById('{!$Component.mapContainer}');
            var mapOptions = {
                center: { lat: 40, lng: -95 },
                zoom: 4,
                maxZoom: 10,
                scrollwheel: false
            };
            map = new google.maps.Map(mapCanvas, mapOptions);
            mapBoundary = new google.maps.LatLngBounds();
                   
            loadApplicants();
            plotApplicantMarkers();
        }
        
        // Convert applicants from sObjects to JavaScript objects
        function loadApplicants() {
            <apex:repeat value="{!Position__c.Job_Applications__r}" var="jobApp">
                applicants.push({ 
                    name: "{!JSENCODE(jobApp.Candidate__r.First_Name__c + ' ' + 
                                     jobApp.Candidate__r.Last_Name__c)}",
                    address: "{!JSENCODE(jobApp.Candidate__r.Street__c  + ', ' + 
                                        jobApp.Candidate__r.City__c + ', ' + 
                                        jobApp.Candidate__r.State_Province__c)}",
                    viewLink: "{!JSENCODE(LINKTO(jobApp.Candidate__r.First_Name__c + 
                                           ' ' + jobApp.Candidate__r.Last_Name__c, 
                                        $Action.Candidate__c.View, 
                                        jobApp.Candidate__c))}"
                });
            </apex:repeat>
        }
        
        // Place markers on the map for each applicant
        function plotApplicantMarkers() {
            geocoder = new google.maps.Geocoder();
            for(var idex = 0 ; idex < applicants.length ; idex++) {
                geocodeAndCreateMarker(applicants[idex]);
            }
        }
        
        // Convert address to lat & long, and create actual marker
        function geocodeAndCreateMarker(applicant) {
            geocoder.geocode({'address':applicant.address},function(results, status){

                countApplicantsGeocoded++;

                // Add marker for geocoded address
                if(status == google.maps.GeocoderStatus.OK) {
                    var marker = new google.maps.Marker({
                        map: map,
                        position: results[0].geometry.location,
                    });
                    mapBoundary.extend(marker.position);
                    
                    google.maps.event.addListener(marker, 'click', function() {
                        applicantInfoPanel.setContent(applicant.viewLink + 
                            "<br/>\n" + applicant.address);
                        applicantInfoPanel.open(map, marker);
                    });
                }
                
                // If we're done geocoding, re-center and zoom the map
                if(countApplicantsGeocoded >= applicants.length) {
                    map.fitBounds(mapBoundary);
                }
            });
        }
        
        google.maps.event.addDomListener(window, 'load', loadMap);
    </script>

    <apex:outputPanel layout="block" id="mapContainer" style="height: 400px">
        Loading map...
    </apex:outputPanel>

</apex:page>




Can someone help me why i am getting this error while greating a visualforce page! 

Error: Invalid field Candidate__r for SObject Job_Application__c