Error: Unknown property 'InlineTechnicianController.TechnicianWrapper.Technician'

Hi ,
I am getting this Error while saving my VF page can anyone tel where I did the mistake and here is my code. Thanks in Advance.

=======PAGE======
<apex:page controller="InlineTechnicianController" id="mypage" sidebar="false">
    <apex:form id="form1" >
    <apex:pageBlock id="pgBlok" rendered="{!isSaved}">
<apex:pageblockButtons location="top">
<apex:commandButton value="Edit Dates" action="{!editTechDate}" reRender="form1"/>
      </apex:pageblockButtons>
         <apex:pageBlockSection columns="1">
                <apex:pageBlockTable value="{!Technician}" var="tc">

                    <apex:column headerValue="StartDate"><apex:outputText value="{!tc.StartDate}" ></apex:outputText></apex:column>
                    <apex:column headerValue="EndDate"><apex:outputText value="{!tc.EndDate}"></apex:outputText></apex:column>

                </apex:pageBlockTable>
         </apex:pageBlockSection>

      </apex:pageBlock>
    <apex:pageBlock id="pgBlok1" rendered="{!isEdit}">
<apex:pageblockButtons location="top">
    <apex:commandButton value="Add Row" action="{!addTechDate}" reRender="form1"/>
    <apex:commandButton value="Save Row" action="{!saveTechDate}" reRender="form1"/>
   
</apex:pageblockButtons>
         <apex:pageBlockSection columns="1">
                <apex:pageBlockTable value="{!Technician}" var="tc">

                    <apex:column headerValue="StartDate"><apex:inputText value="{!tc.StartDate}" size="10" id="demo" onfocus="DatePicker.pickDate(false, this , false);"></apex:inputText></apex:column>
                    <apex:column headerValue="EndDate"><apex:inputText value="{!tc.EndDate}" size="10" id="demo1" onfocus="DatePicker.pickDate(false, this , false);"></apex:inputText></apex:column>
                    <apex:column >
                           <apex:commandLink action="{!doRemove}" value="Remove Row" reRender="form1">
                           <apex:param name="removeRow" value="{!tc.Technician}" />
                           </apex:commandLink>
                   </apex:column>

                </apex:pageBlockTable>
         </apex:pageBlockSection>

      </apex:pageBlock>

    </apex:form>
</apex:page>

======CONTROLLER=======
public class InlineTechnicianController
{
//Globally Declared Variables and Properties.

    public boolean isEdit {get;set;}
    public boolean flag {get;set;}
    public boolean isSaved {get;set;}
    public Integer rowNum {get;set;}

//Constructor
public InlineTechnicianController() {
            isSaved = true;
    }
public InlineTechnicianController(ApexPages.StandardController controller)
    {
        flag=false;
        isEdit=false;
        isSaved = true;
}

//Wrapper Classes
public class TechnicianWrapper
    {
        public String StartDate{get;set;}
        public String EndDate{get;set;}

}

    //Methods
      Engineer__c newList= [select Id,Start_Date_Long__c,End_Date_Long__c from Engineer__c where Id=:ApexPages.currentPage().getParameters().get('id')];

      public List<TechnicianWrapper> techList = new List<TechnicianWrapper>();

      public List<TechnicianWrapper> getTechnician() // For populating Dates
    {

        if(techList.isEmpty())//Avoids list getting repopulated with same Values over and over again.
        {
          if(newList.Start_Date_Long__c!=null)// Only if fields from which the data is getting filled are populated.
            {
                List<String> sdate,edate;
                sdate= newList.Start_Date_Long__c.split(';',-1);
                for(Integer iterator=0;iterator<sdate.size();iterator++)
                {
                    TechnicianWrapper instance = new TechnicianWrapper();
                    instance.StartDate = sdate[iterator];

                    if(newList.End_Date_Long__c!=null )
                    {
                    instance.EndDate = edate[iterator];
                    }else
                    {
                    instance.EndDate ='';
                    }

                   techList.add(instance);
                   System.debug('techList====='+techList);
                }
            }
        }
        System.debug('techList====='+techList);
        return techList;

    }
    public PageReference editTechDate()
    {
        isEdit=true;
        isSaved = false;
        return null;
    }
    public PageReference addTechDate()
    {

       TechnicianWrapper instance = new TechnicianWrapper();
       techList.add(instance);
       return null;
    }
    public PageReference saveTechDate()
    {

        Boolean isError=false;
        Boolean isError2=false;
        Boolean isError3=false;
        Boolean isError4=false;
        Boolean isError5=false;

        String sdt='', edt='';


        if(flag)
        {
          techList = new List<TechnicianWrapper>();
        }
       // Set<String> avoidDuplicate = new Set<String>();

        for(TechnicianWrapper iterator:techList)
        {


            if(sdt=='')
            {
                sdt = iterator.StartDate;
                edt = iterator.EndDate;

            }
            else
            {
                sdt = sdt+';'+iterator.StartDate;
                edt = edt+';'+iterator.EndDate;

            }
            // avoidDuplicate.add(iterator.systemType);

             if(iterator.startDate=='')
             {
                isError3 = true;
            }

            if(iterator.StartDate!='' && iterator.EndDate=='')
            {
                isError4 = true;
            }
             if(iterator.StartDate=='' && iterator.EndDate!='')
            {
                isError5 = true;
            }

        }
        /*
         if(techList.size()!=avoidDuplicate.size())
            {
            isError2 = true;
            }
            */

         Engineer__c newList= [select Id,Start_Date_Long__c,End_Date_Long__c from Engineer__c
                            where Id=:ApexPages.currentPage().getParameters().get('id')];

         newList.Start_Date_Long__c = sdt;
         newList.End_Date_Long__c = edt;


         if(isError)
        {
            ApexPages.Message myMsg=new ApexPages.Message(ApexPages.Severity.Error, 'Pass and Fail cannot be selected at the same time.');
            ApexPages.addMessage(myMsg);
        }
        else if(isError3)
        {
            ApexPages.Message myMsg=new ApexPages.Message(ApexPages.Severity.Error, 'Cannot save without Start & End Dates. ');
            ApexPages.addMessage(myMsg);
        }
        else if(isError4)
        {
            ApexPages.Message myMsg=new ApexPages.Message(ApexPages.Severity.Error, 'Cannot save without End Date');
            ApexPages.addMessage(myMsg);
        }
         else if(isError5)
        {
            ApexPages.Message myMsg=new ApexPages.Message(ApexPages.Severity.Error, 'Cannot save without Start Date');
            ApexPages.addMessage(myMsg);
        }
        else
        {

        //try{

                update newList;

                Engineer__c newList2= [select Id,Start_Date_Long__c,End_Date_Long__c from Engineer__c
                        where Id=:ApexPages.currentPage().getParameters().get('id') limit 1];
        /*}catch(exception e){
            ApexPages.Message myMsg=new ApexPages.Message(ApexPages.Severity.Error, e.getMessage());
            ApexPages.addMessage(myMsg);
        }*/
        isEdit=false;
        isSaved = true;
    }
    return null;
    }

   Public PageReference doRemove()
    {
        rowNum = Integer.valueOf(apexpages.currentpage().getparameters().get('index'));
        techList.remove(rowNum);
        return null;
     }

}