diff --git a/src/backend/agents/generate_persona.py b/src/backend/agents/generate_persona.py
index 58a5e88..6609c1e 100644
--- a/src/backend/agents/generate_persona.py
+++ b/src/backend/agents/generate_persona.py
@@ -15,9 +15,7 @@ import random
 import re
 import json
 import time
-import time
 import os
-import random
 
 from .base import Agent, agent_registry
 from models import (
@@ -119,13 +117,6 @@ Provide the resume in Markdown format. DO NOT provide any commentary before or a
 """
 
 # Debug version to identify the issue
-import random
-import logging
-
-# Set up logging to see what's happening
-logging.basicConfig(level=logging.INFO)
-logger = logging.getLogger(__name__)
-
 
 class EthnicNameGenerator:
     def __init__(self):
diff --git a/src/backend/database/manager.py b/src/backend/database/manager.py
index e2a36a8..46c480c 100644
--- a/src/backend/database/manager.py
+++ b/src/backend/database/manager.py
@@ -1,5 +1,5 @@
 from redis.asyncio import Redis, ConnectionPool
-from typing import Optional, Optional
+from typing import Optional
 import json
 import logging
 import os
diff --git a/src/backend/routes/admin.py b/src/backend/routes/admin.py
index faf317c..3dc722a 100644
--- a/src/backend/routes/admin.py
+++ b/src/backend/routes/admin.py
@@ -10,13 +10,8 @@ from fastapi import (
     Depends,
     Body,
     Request,
-    HTTPException,
-    Depends,
     Query,
     Path,
-    Body,
-    APIRouter,
-    Request,
 )
 
 from fastapi.responses import JSONResponse
diff --git a/src/backend/routes/auth.py b/src/backend/routes/auth.py
index 3a20a9b..e086bcd 100644
--- a/src/backend/routes/auth.py
+++ b/src/backend/routes/auth.py
@@ -31,7 +31,6 @@ from models import (
     MFAVerifyRequest,
     ResendVerificationRequest,
     MFARequestResponse,
-    MFARequestResponse,
 )
 from utils.dependencies import get_current_admin, get_database, get_current_user, create_access_token
 from utils.responses import create_success_response, create_error_response
diff --git a/src/backend/routes/chat.py b/src/backend/routes/chat.py
index 0b8d6cc..42f9978 100644
--- a/src/backend/routes/chat.py
+++ b/src/backend/routes/chat.py
@@ -6,7 +6,7 @@ import uuid
 from datetime import datetime, UTC
 from typing import Dict, Any
 
-from fastapi import APIRouter, Depends, Body, Depends, Query, Path, Body, APIRouter
+from fastapi import Depends, Query, Path, Body, APIRouter
 
 from fastapi.responses import JSONResponse
 
@@ -19,7 +19,7 @@ import backstory_traceback
 
 import entities.entity_manager as entities
 
-from models import Candidate, ChatMessageUser, Candidate, BaseUserWithType, ChatSession, ChatMessage
+from models import Candidate, ChatMessageUser, BaseUserWithType, ChatSession, ChatMessage
 
 
 # Create router for authentication endpoints