diff --git a/src/apps/review/src/lib/contexts/ChallengeDetailContextProvider.tsx b/src/apps/review/src/lib/contexts/ChallengeDetailContextProvider.tsx
index 7e304a5ca..bdc92d857 100644
--- a/src/apps/review/src/lib/contexts/ChallengeDetailContextProvider.tsx
+++ b/src/apps/review/src/lib/contexts/ChallengeDetailContextProvider.tsx
@@ -5,7 +5,11 @@ import { FC, PropsWithChildren, useContext, useMemo } from 'react'
 import { useParams } from 'react-router-dom'
 
 import { convertBackendSubmissionToSubmissionInfo } from '../models'
-import type { ChallengeDetailContextModel, SubmissionInfo } from '../models'
+import type {
+    ChallengeDetailContextModel,
+    ReviewAppContextModel,
+    SubmissionInfo,
+} from '../models'
 import {
     useFetchChallengeInfo,
     useFetchChallengeInfoProps,
@@ -16,11 +20,13 @@ import {
 } from '../hooks'
 
 import { ChallengeDetailContext } from './ChallengeDetailContext'
+import { ReviewAppContext } from './ReviewAppContext'
 
 export const ChallengeDetailContextProvider: FC<PropsWithChildren> = props => {
     const { challengeId = '' }: { challengeId?: string } = useParams<{
         challengeId: string
     }>()
+    const { loginUserInfo }: ReviewAppContextModel = useContext(ReviewAppContext)
     // fetch challenge info
     const {
         challengeInfo,
@@ -37,10 +43,21 @@ export const ChallengeDetailContextProvider: FC<PropsWithChildren> = props => {
         isLoading: isLoadingChallengeResources,
         resourceMemberIdMapping,
     }: useFetchChallengeResourcesProps = useFetchChallengeResources(challengeId)
+    const submissionViewer = useMemo(
+        () => ({
+            roles: myRoles,
+            tokenRoles: loginUserInfo?.roles,
+            userId: loginUserInfo?.userId,
+        }),
+        [loginUserInfo?.roles, loginUserInfo?.userId, myRoles],
+    )
     const {
         challengeSubmissions,
         isLoading: isLoadingChallengeSubmissions,
-    }: useFetchChallengeSubmissionsProps = useFetchChallengeSubmissions(challengeId)
+    }: useFetchChallengeSubmissionsProps = useFetchChallengeSubmissions(
+        challengeId,
+        submissionViewer,
+    )
 
     const submissionInfos = useMemo<SubmissionInfo[]>(
         () => challengeSubmissions.map(convertBackendSubmissionToSubmissionInfo),
diff --git a/src/apps/review/src/lib/hooks/useFetchChallengeSubmissions.ts b/src/apps/review/src/lib/hooks/useFetchChallengeSubmissions.ts
index 4c28a8ac0..aa82a69f1 100644
--- a/src/apps/review/src/lib/hooks/useFetchChallengeSubmissions.ts
+++ b/src/apps/review/src/lib/hooks/useFetchChallengeSubmissions.ts
@@ -5,6 +5,7 @@ import {
 import useSWR, { SWRResponse } from 'swr'
 
 import { handleError } from '~/libs/shared'
+import { UserRole } from '~/libs/core'
 
 import { BackendSubmission, BackendSubmissionStatus } from '../models'
 import { fetchSubmissions } from '../services'
@@ -22,6 +23,12 @@ interface ChallengeSubmissionsMemoResult {
     filteredSubmissions: BackendSubmission[]
 }
 
+export interface ChallengeSubmissionsViewer {
+    roles?: Array<string | undefined | null>
+    tokenRoles?: Array<string | undefined | null>
+    userId?: string | number | null
+}
+
 /**
  * Fetch challenge submissions
  * @param challengeId challenge id
@@ -29,6 +36,7 @@ interface ChallengeSubmissionsMemoResult {
  */
 export function useFetchChallengeSubmissions(
     challengeId?: string,
+    viewer?: ChallengeSubmissionsViewer,
 ): useFetchChallengeSubmissionsProps {
     // Use swr hooks for submissions fetching
     const {
@@ -46,6 +54,92 @@ export function useFetchChallengeSubmissions(
         isPaused: () => !challengeId,
     })
 
+    const normalizedRoles = useMemo<string[]>(
+        () => (viewer?.roles ?? [])
+            .map(role => (role ? `${role}`.toLowerCase()
+                .trim() : ''))
+            .filter(Boolean),
+        [viewer?.roles],
+    )
+    const normalizedTokenRoles = useMemo<string[]>(
+        () => (viewer?.tokenRoles ?? [])
+            .map(role => (typeof role === 'string' ? role.toLowerCase()
+                .trim() : ''))
+            .filter(Boolean),
+        [viewer?.tokenRoles],
+    )
+    const hasSubmitterRole = useMemo<boolean>(
+        () => normalizedRoles.some(role => role.includes('submitter')),
+        [normalizedRoles],
+    )
+    const hasCopilotRole = useMemo<boolean>(
+        () => normalizedRoles.some(role => role.includes('copilot')),
+        [normalizedRoles],
+    )
+    const hasReviewerRole = useMemo<boolean>(
+        () => normalizedRoles.some(role => role.includes('reviewer')),
+        [normalizedRoles],
+    )
+    const hasManagerRole = useMemo<boolean>(
+        () => normalizedRoles.some(role => role.includes('manager')),
+        [normalizedRoles],
+    )
+    const hasScreenerRole = useMemo<boolean>(
+        () => normalizedRoles.some(role => role.includes('screener')),
+        [normalizedRoles],
+    )
+    const hasApproverRole = useMemo<boolean>(
+        () => normalizedRoles.some(role => role.includes('approver')),
+        [normalizedRoles],
+    )
+    const isProjectManager = useMemo<boolean>(
+        () => normalizedTokenRoles.some(
+            role => role === UserRole.projectManager.toLowerCase(),
+        )
+            || normalizedRoles.some(role => role.includes('project manager')),
+        [normalizedRoles, normalizedTokenRoles],
+    )
+    const isAdmin = useMemo<boolean>(
+        () => normalizedTokenRoles.some(
+            role => role === UserRole.administrator.toLowerCase(),
+        )
+            || normalizedRoles.some(role => role.includes('admin')),
+        [normalizedRoles, normalizedTokenRoles],
+    )
+    const canViewAllSubmissions = useMemo<boolean>(
+        () => (viewer ? (
+            isAdmin
+                || hasCopilotRole
+                || hasReviewerRole
+                || hasManagerRole
+                || hasScreenerRole
+                || hasApproverRole
+                || isProjectManager
+        ) : true),
+        [
+            viewer,
+            isAdmin,
+            hasCopilotRole,
+            hasReviewerRole,
+            hasManagerRole,
+            hasScreenerRole,
+            hasApproverRole,
+            isProjectManager,
+        ],
+    )
+    const viewerMemberId = useMemo<string | undefined>(
+        () => {
+            const raw = viewer?.userId
+            if (raw === undefined || raw === null) {
+                return undefined
+            }
+
+            const normalized = `${raw}`.trim()
+            return normalized.length ? normalized : undefined
+        },
+        [viewer?.userId],
+    )
+
     // Show backend error when fetching data fail
     useEffect(() => {
         if (error) {
@@ -69,6 +163,10 @@ export function useFetchChallengeSubmissions(
         const normalizedDeletedIds = new Set<string>()
         const normalizedDeletedLegacyIds = new Set<string>()
         const activeSubmissions: BackendSubmission[] = []
+        const shouldRestrictToCurrentMember = Boolean(
+            hasSubmitterRole
+            && !canViewAllSubmissions,
+        )
 
         const normalizeStatus = (status: unknown): string => {
             if (typeof status === 'string') {
@@ -105,12 +203,23 @@ export function useFetchChallengeSubmissions(
             activeSubmissions.push(submission)
         })
 
+        const visibleSubmissions = shouldRestrictToCurrentMember
+            ? activeSubmissions.filter(submission => (viewerMemberId
+                ? `${submission?.memberId ?? ''}` === viewerMemberId
+                : false))
+            : activeSubmissions
+
         return {
             deletedLegacySubmissionIds: normalizedDeletedLegacyIds,
             deletedSubmissionIds: normalizedDeletedIds,
-            filteredSubmissions: activeSubmissions,
+            filteredSubmissions: visibleSubmissions,
         }
-    }, [challengeSubmissions])
+    }, [
+        challengeSubmissions,
+        canViewAllSubmissions,
+        hasSubmitterRole,
+        viewerMemberId,
+    ])
 
     return {
         challengeSubmissions: filteredSubmissions,
diff --git a/src/apps/review/src/lib/hooks/useFetchScreeningReview.ts b/src/apps/review/src/lib/hooks/useFetchScreeningReview.ts
index 370816480..257cd3ba0 100644
--- a/src/apps/review/src/lib/hooks/useFetchScreeningReview.ts
+++ b/src/apps/review/src/lib/hooks/useFetchScreeningReview.ts
@@ -436,7 +436,16 @@ export function useFetchScreeningReview(): useFetchScreeningReviewProps {
         reviewers: challengeReviewers,
         resources,
         myResources,
+        myRoles,
     }: ChallengeDetailContextModel = useContext(ChallengeDetailContext)
+    const submissionViewer = useMemo(
+        () => ({
+            roles: myRoles,
+            tokenRoles: loginUserInfo?.roles,
+            userId: loginUserInfo?.userId,
+        }),
+        [loginUserInfo?.roles, loginUserInfo?.userId, myRoles],
+    )
 
     const challengeLegacy = (challengeInfo as unknown as {
         legacy?: {
@@ -451,7 +460,10 @@ export function useFetchScreeningReview(): useFetchScreeningReviewProps {
         deletedLegacySubmissionIds,
         deletedSubmissionIds,
         isLoading,
-    }: useFetchChallengeSubmissionsProps = useFetchChallengeSubmissions(challengeId)
+    }: useFetchChallengeSubmissionsProps = useFetchChallengeSubmissions(
+        challengeId,
+        submissionViewer,
+    )
 
     const visibleChallengeSubmissions = useMemo<BackendSubmission[]>(
         () => challengeSubmissions,
diff --git a/start.sh b/start.sh
index e1df7e04f..00f210d4f 100644
--- a/start.sh
+++ b/start.sh
@@ -4,10 +4,9 @@
 
 export ESLINT_NO_DEV_ERRORS=true
 export HTTPS=true
-export HOST=local.topcoder-dev.com
-export REACT_APP_HOST_ENV=${REACT_APP_HOST_ENV:-dev}
 export PORT=443
-
+export REACT_APP_HOST_ENV=${REACT_APP_HOST_ENV:-dev}
+export HOST=local.topcoder-dev.com
 # if [[ ! -e ./.environments/.env.local ]]; then
 #     filename=.env.${REACT_APP_HOST_ENV:-dev}
 #     cp ./.environments/$filename ./.environments/.env.local