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  <xsd:element id="rubi_ConvertiblePreferredStockWarrantsFairValueDisclosure" name="ConvertiblePreferredStockWarrantsFairValueDisclosure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="rubi_DeferredOfferingCostsIncurredbutNotyetPaid" name="DeferredOfferingCostsIncurredbutNotyetPaid" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="rubi_DocumentandEntityInformationAbstract" name="DocumentandEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="rubi_EmployeeandCertainExecutivesMember" name="EmployeeandCertainExecutivesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="rubi_EvergreenAnnualIncrease" name="EvergreenAnnualIncrease" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="rubi_FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisLiabilityConversionofWarrantstoStock" name="FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisLiabilityConversionofWarrantstoStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="rubi_InitialPublicOfferingSharesSoldbyExistingStockholders" name="InitialPublicOfferingSharesSoldbyExistingStockholders" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="rubi_InitialPublicOfferingSharessoldDuringIPOOverAllotmentOption" name="InitialPublicOfferingSharessoldDuringIPOOverAllotmentOption" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="rubi_InternalUseSoftwareDevelopmentCostsNet" name="InternalUseSoftwareDevelopmentCostsNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="rubi_LeaseArrangementTypeAxis" name="LeaseArrangementTypeAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="rubi_LeaseArrangementTypeDomain" name="LeaseArrangementTypeDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="rubi_NetExerciseOfWarrantSharesCommonStock" name="NetExerciseOfWarrantSharesCommonStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="rubi_NewYorkLeaseMember" name="NewYorkLeaseMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="rubi_OperatingLeasesEnteredSincePriorYearEndFutureMinimumPaymentsDue" name="OperatingLeasesEnteredSincePriorYearEndFutureMinimumPaymentsDue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="rubi_OtherBalanceSheetAmountsAbstract" name="OtherBalanceSheetAmountsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="rubi_ProccedsfromIssuanceInitialPublicOfferingNetofOfferingCosts" name="ProccedsfromIssuanceInitialPublicOfferingNetofOfferingCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="rubi_Reclassificationofdeferredofferingcoststoadditionalpaidincapital" name="Reclassificationofdeferredofferingcoststoadditionalpaidincapital" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="rubi_Reclassificationofpreferredstockwarrantliabilitiestoadditionalpaidincapital" name="Reclassificationofpreferredstockwarrantliabilitiestoadditionalpaidincapital" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="rubi_SeriesBConvertiblePreferredStockMember" name="SeriesBConvertiblePreferredStockMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="rubi_SeriesCConvertiblePreferredStockMember" name="SeriesCConvertiblePreferredStockMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="rubi_SharebasedCompensationAwardTrancheOneMember" name="SharebasedCompensationAwardTrancheOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="rubi_SharebasedCompensationAwardTrancheThreeMember" name="SharebasedCompensationAwardTrancheThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="rubi_SharebasedCompensationAwardTrancheTwoMember" name="SharebasedCompensationAwardTrancheTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="rubi_SiliconValleyBankMember" name="SiliconValleyBankMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="rubi_StockIssuedDuringPeriodSharesStockWarrantsNetExercised" name="StockIssuedDuringPeriodSharesStockWarrantsNetExercised" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="rubi_StockIssuedDuringPeriodValueStockWarrantsNetExercised" name="StockIssuedDuringPeriodValueStockWarrantsNetExercised" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
</xsd:schema>





