diff --git a/backend/.eslintrc.json b/backend/.eslintrc.json
index 8aabb955f..6089815ec 100644
--- a/backend/.eslintrc.json
+++ b/backend/.eslintrc.json
@@ -8,9 +8,13 @@
     "plugin:@typescript-eslint/recommended"
   ],
   "rules": {
-    "@typescript-eslint/no-unused-vars": ["warn", { "argsIgnorePattern": "^_", "varsIgnorePattern": "^_" }],
+    "@typescript-eslint/no-unused-vars": [
+      "warn",
+      { "argsIgnorePattern": "^_", "varsIgnorePattern": "^_", "caughtErrorsIgnorePattern": "^_" }
+    ],
     "@typescript-eslint/no-extra-semi": "off",
     "@typescript-eslint/no-explicit-any": "off",
+    "@typescript-eslint/no-unused-expressions": ["off", { "allowTernary": true }],
     "simple-import-sort/imports": "warn",
     "simple-import-sort/exports": "warn",
     "no-console": "warn"
diff --git a/backend/src/clients/cognito.ts b/backend/src/clients/cognito.ts
index 4def2fe0a..927f36148 100644
--- a/backend/src/clients/cognito.ts
+++ b/backend/src/clients/cognito.ts
@@ -14,7 +14,7 @@ export async function listUsers(query: string, exactMatch = false) {
   try {
     dnName = config.oauth.cognito.userIdAttribute
     userPoolId = config.oauth.cognito.userPoolId
-  } catch (e) {
+  } catch (_e) {
     throw ConfigurationError('Cannot find userIdAttribute in oauth configuration', { oauthConfiguration: config.oauth })
   }
 
diff --git a/backend/src/connectors/fileScanning/clamAv.ts b/backend/src/connectors/fileScanning/clamAv.ts
index 6f2b9f364..c56368725 100644
--- a/backend/src/connectors/fileScanning/clamAv.ts
+++ b/backend/src/connectors/fileScanning/clamAv.ts
@@ -27,7 +27,7 @@ export class ClamAvFileScanningConnector extends BaseFileScanningConnector {
         try {
           av = await new NodeClam().init({ clamdscan: config.avScanning.clamdscan })
           log.info('Clam AV initialised.')
-        } catch (error) {
+        } catch (_error) {
           log.warn(`Could not initialise Clam AV, retrying (attempt ${retryCount})...`)
           this.init(++retryCount)
         }
diff --git a/backend/src/connectors/fileScanning/index.ts b/backend/src/connectors/fileScanning/index.ts
index d4f373879..a6cf587f2 100644
--- a/backend/src/connectors/fileScanning/index.ts
+++ b/backend/src/connectors/fileScanning/index.ts
@@ -24,7 +24,7 @@ export function runFileScanners(cache = true) {
           const scanner = new ClamAvFileScanningConnector()
           await scanner.init()
           fileScanConnectors.push(scanner)
-        } catch (error) {
+        } catch (_error) {
           throw ConfigurationError('Could not configure or initialise Clam AV')
         }
         break
@@ -33,7 +33,7 @@ export function runFileScanners(cache = true) {
           const scanner = new ModelScanFileScanningConnector()
           await scanner.init()
           fileScanConnectors.push(scanner)
-        } catch (error) {
+        } catch (_error) {
           throw ConfigurationError('Could not configure or initialise ModelScan')
         }
         break
diff --git a/backend/src/connectors/fileScanning/modelScan.ts b/backend/src/connectors/fileScanning/modelScan.ts
index 2a6437934..e00af3cec 100644
--- a/backend/src/connectors/fileScanning/modelScan.ts
+++ b/backend/src/connectors/fileScanning/modelScan.ts
@@ -26,7 +26,7 @@ export class ModelScanFileScanningConnector extends BaseFileScanningConnector {
         try {
           await getModelScanInfo()
           log.info('ModelScan initialised.')
-        } catch (error) {
+        } catch (_error) {
           log.warn(`Could not initialise ModelScan, retrying (attempt ${retryCount})...`)
           this.init(++retryCount)
         }
diff --git a/backend/src/migrations/011_find_and_remove_invalid_users.ts b/backend/src/migrations/011_find_and_remove_invalid_users.ts
index a0fa6970d..25c05ccb6 100644
--- a/backend/src/migrations/011_find_and_remove_invalid_users.ts
+++ b/backend/src/migrations/011_find_and_remove_invalid_users.ts
@@ -20,7 +20,7 @@ export async function up() {
         if (collaborator.entity !== '') {
           try {
             await authentication.getUserInformation(collaborator.entity)
-          } catch (err) {
+          } catch (_err) {
             invalidUsers.push(collaborator.entity)
           }
         }