diff --git a/packages/backend-common/src/middleware/errorHandler.test.ts b/packages/backend-common/src/middleware/errorHandler.test.ts
index e9808ec633..32c55e0c45 100644
--- a/packages/backend-common/src/middleware/errorHandler.test.ts
+++ b/packages/backend-common/src/middleware/errorHandler.test.ts
@@ -57,7 +57,6 @@ describe('errorHandler', () => {
 
       // mutate the response object to test the middleware.
       // it's hard to catch errors inside middleware from the outside.
-      // @ts-ignore
       res.send = mockSend;
       throw new Error('some message');
     });
diff --git a/packages/core-components/src/components/ProgressBars/LinearGauge.tsx b/packages/core-components/src/components/ProgressBars/LinearGauge.tsx
index f1e4fb3334..643c3ec2ac 100644
--- a/packages/core-components/src/components/ProgressBars/LinearGauge.tsx
+++ b/packages/core-components/src/components/ProgressBars/LinearGauge.tsx
@@ -17,7 +17,6 @@
 import React from 'react';
 import { useTheme } from '@material-ui/core/styles';
 import Tooltip from '@material-ui/core/Tooltip';
-// @ts-ignore
 import { Line } from 'rc-progress';
 import { BackstageTheme } from '@backstage/theme';
 import { getProgressColor, GaugePropsGetColor } from './Gauge';
diff --git a/packages/core-components/src/layout/Sidebar/SidebarGroup.tsx b/packages/core-components/src/layout/Sidebar/SidebarGroup.tsx
index bc7688153a..16395d86f2 100644
--- a/packages/core-components/src/layout/Sidebar/SidebarGroup.tsx
+++ b/packages/core-components/src/layout/Sidebar/SidebarGroup.tsx
@@ -96,12 +96,11 @@ const MobileSidebarGroup = (props: SidebarGroupProps) => {
 
   return (
     // Material UI issue: https://github.com/mui-org/material-ui/issues/27820
-    // @ts-ignore
     <BottomNavigationAction
       label={label}
       icon={icon}
-      component={Link}
-      to={to ? to : location.pathname}
+      component={Link as any}
+      to={(to ? to : location.pathname) as any}
       onChange={onChange}
       value={value}
       selected={selected}
diff --git a/packages/create-app/src/createApp.ts b/packages/create-app/src/createApp.ts
index ac42ed0ff3..d4d30364dc 100644
--- a/packages/create-app/src/createApp.ts
+++ b/packages/create-app/src/createApp.ts
@@ -16,7 +16,7 @@
 
 import chalk from 'chalk';
 import { Command } from 'commander';
-import inquirer, { Answers, Question } from 'inquirer';
+import inquirer, { Answers } from 'inquirer';
 import { resolve as resolvePath } from 'path';
 import { findPaths } from '@backstage/cli-common';
 import os from 'os';
@@ -34,7 +34,7 @@ export default async (cmd: Command, version: string): Promise<void> => {
   /* eslint-disable-next-line no-restricted-syntax */
   const paths = findPaths(__dirname);
 
-  const questions: Question[] = [
+  const answers: Answers = await inquirer.prompt([
     {
       type: 'input',
       name: 'name',
@@ -54,11 +54,9 @@ export default async (cmd: Command, version: string): Promise<void> => {
       type: 'list',
       name: 'dbType',
       message: chalk.blue('Select database for the backend [required]'),
-      // @ts-ignore
       choices: ['SQLite', 'PostgreSQL'],
     },
-  ];
-  const answers: Answers = await inquirer.prompt(questions);
+  ]);
   answers.dbTypePG = answers.dbType === 'PostgreSQL';
   answers.dbTypeSqlite = answers.dbType === 'SQLite';
 
diff --git a/packages/test-utils/src/testUtils/logCollector.test.ts b/packages/test-utils/src/testUtils/logCollector.test.ts
index d877e4d10b..fc66d7a26e 100644
--- a/packages/test-utils/src/testUtils/logCollector.test.ts
+++ b/packages/test-utils/src/testUtils/logCollector.test.ts
@@ -62,8 +62,7 @@ describe('logCollector', () => {
 
       expect(logs.log).toEqual(['a', '1']);
       expect(logs.warn).toEqual(['b', '2']);
-      // @ts-ignore
-      expect(logs.error).toEqual([]);
+      expect((logs as any).error).toEqual([]);
     });
 
     expect(missedLogs.log).toEqual([]);
@@ -82,10 +81,8 @@ describe('logCollector', () => {
         console.log('1');
       });
 
-      // @ts-ignore
-      expect(logs.log).toEqual([]);
-      // @ts-ignore
-      expect(logs.warn).toEqual([]);
+      expect((logs as any).log).toEqual([]);
+      expect((logs as any).warn).toEqual([]);
       expect(logs.error).toEqual(['c', '3']);
     });
 
diff --git a/packages/test-utils/src/testUtils/testingLibrary.ts b/packages/test-utils/src/testUtils/testingLibrary.ts
index 9fb47cbc90..bfe617a436 100644
--- a/packages/test-utils/src/testUtils/testingLibrary.ts
+++ b/packages/test-utils/src/testUtils/testingLibrary.ts
@@ -36,6 +36,5 @@ export async function renderWithEffects(
   await act(async () => {
     value = render(nodes);
   });
-  // @ts-ignore
-  return value;
+  return value!;
 }
diff --git a/plugins/auth-backend/src/lib/passport/PassportStrategyHelper.test.ts b/plugins/auth-backend/src/lib/passport/PassportStrategyHelper.test.ts
index f7cb500d92..893be26852 100644
--- a/plugins/auth-backend/src/lib/passport/PassportStrategyHelper.test.ts
+++ b/plugins/auth-backend/src/lib/passport/PassportStrategyHelper.test.ts
@@ -146,8 +146,7 @@ describe('PassportStrategyHelper', () => {
         }
       }
       class MyCustomRefreshTokenSuccess extends passport.Strategy {
-        // @ts-ignore
-        private _oauth2 = new MyCustomOAuth2Success();
+        _oauth2 = new MyCustomOAuth2Success();
         userProfile(_accessToken: string, callback: Function) {
           callback(null, {
             provider: 'a',
@@ -183,8 +182,7 @@ describe('PassportStrategyHelper', () => {
         }
       }
       class MyCustomRefreshTokenSuccess extends passport.Strategy {
-        // @ts-ignore
-        private _oauth2 = new MyCustomOAuth2Error();
+        _oauth2 = new MyCustomOAuth2Error();
       }
 
       const mockStrategy = new MyCustomRefreshTokenSuccess();
@@ -209,8 +207,7 @@ describe('PassportStrategyHelper', () => {
         }
       }
       class MyCustomRefreshTokenSuccess extends passport.Strategy {
-        // @ts-ignore
-        private _oauth2 = new MyCustomOAuth2AccessTokenMissing();
+        _oauth2 = new MyCustomOAuth2AccessTokenMissing();
       }
 
       const mockStrategy = new MyCustomRefreshTokenSuccess();
diff --git a/plugins/catalog-backend-module-ldap/src/ldap/vendors.ts b/plugins/catalog-backend-module-ldap/src/ldap/vendors.ts
index 3df29a5fb9..447df8aaa5 100644
--- a/plugins/catalog-backend-module-ldap/src/ldap/vendors.ts
+++ b/plugins/catalog-backend-module-ldap/src/ldap/vendors.ts
@@ -94,7 +94,6 @@ function formatGUID(objectGUID: string | Buffer): string {
 
   // check each byte
   for (let i = 0; i < data.length; i++) {
-    // @ts-ignore
     let dataStr = data[i].toString(16);
     dataStr = data[i] >= 16 ? dataStr : `0${dataStr}`;
 
diff --git a/plugins/code-coverage-backend/src/service/CoverageUtils.test.ts b/plugins/code-coverage-backend/src/service/CoverageUtils.test.ts
index 97a99c10b2..e0b4c6589e 100644
--- a/plugins/code-coverage-backend/src/service/CoverageUtils.test.ts
+++ b/plugins/code-coverage-backend/src/service/CoverageUtils.test.ts
@@ -15,6 +15,7 @@
  */
 import fs from 'fs';
 import { Readable } from 'stream';
+import { Request } from 'express';
 import {
   calculatePercentage,
   aggregateCoverage,
@@ -202,12 +203,9 @@ describe('CodeCoverageUtils', () => {
     it('rejects missing content type', () => {
       let err: Error | null = null;
       try {
-        const mockRequest: Partial<Request> = {
-          // @ts-ignore
+        utils.validateRequestBody({
           headers: {},
-        };
-        // @ts-ignore
-        utils.validateRequestBody(mockRequest as Request);
+        } as Request);
       } catch (error: any) {
         err = error;
       }
@@ -217,15 +215,11 @@ describe('CodeCoverageUtils', () => {
     it('rejects unsupported content type', () => {
       let err: Error | null = null;
       try {
-        const mockRequest: Partial<Request> = {
+        utils.validateRequestBody({
           headers: {
-            // @ts-ignore
             'content-type': 'application/json',
           },
-        };
-
-        // @ts-ignore
-        utils.validateRequestBody(mockRequest as Request);
+        } as Request);
       } catch (error: any) {
         err = error;
       }
@@ -233,35 +227,28 @@ describe('CodeCoverageUtils', () => {
     });
 
     it('parses the body', () => {
-      const mockRequest: Partial<Request> = {
+      const data: Readable = utils.validateRequestBody({
         headers: {
-          // @ts-ignore
           'content-type': 'text/xml',
         },
-        // @ts-ignore
         body: Readable.from(
           '<?xml version="1.0" encoding="UTF-8" standalone="yes"?><report name="example"></report>',
         ),
-      };
-
-      // @ts-ignore
-      const data: Readable = utils.validateRequestBody(mockRequest as Request);
+      } as Request);
 
       expect(data.read()).toContain('<?xml');
     });
   });
 
   describe('processCoveragePayload', () => {
-    const mockRequest: Partial<Request> = {
+    const mockRequest = {
       headers: {
-        // @ts-ignore
         'content-type': 'text/xml',
       },
-      // @ts-ignore
       body: Readable.from(
         '<?xml version="1.0" encoding="UTF-8" standalone="yes"?><report name="example"></report>',
       ),
-    };
+    } as Request;
 
     it('ignores scm if annotation is not set', async () => {
       const entity: Entity = {
@@ -273,12 +260,8 @@ describe('CodeCoverageUtils', () => {
         apiVersion: 'backstage.io/v1alpha1',
       };
 
-      const {
-        scmFiles,
-        sourceLocation,
-        vcs,
-        body, // @ts-ignore
-      } = await utils.processCoveragePayload(entity, mockRequest);
+      const { scmFiles, sourceLocation, vcs, body } =
+        await utils.processCoveragePayload(entity, mockRequest);
       let data;
       // in normal flow the express app will already have done this through the middleware
       parseString((body as Readable).read(), (_e, r) => {
@@ -312,11 +295,8 @@ describe('CodeCoverageUtils', () => {
         apiVersion: 'backstage.io/v1alpha1',
       };
 
-      const {
-        scmFiles,
-        sourceLocation,
-        vcs, // @ts-ignore
-      } = await utils.processCoveragePayload(entity, mockRequest);
+      const { scmFiles, sourceLocation, vcs } =
+        await utils.processCoveragePayload(entity, mockRequest);
 
       expect(scmFiles.length).toBe(scmFiles.length);
       expect(vcs).not.toBeUndefined();
diff --git a/plugins/kubernetes-backend/src/kubernetes-auth-translator/ServiceAccountKubernetesAuthTranslator.ts b/plugins/kubernetes-backend/src/kubernetes-auth-translator/ServiceAccountKubernetesAuthTranslator.ts
index 6e5b8b9558..ec90f82c91 100644
--- a/plugins/kubernetes-backend/src/kubernetes-auth-translator/ServiceAccountKubernetesAuthTranslator.ts
+++ b/plugins/kubernetes-backend/src/kubernetes-auth-translator/ServiceAccountKubernetesAuthTranslator.ts
@@ -23,10 +23,7 @@ export class ServiceAccountKubernetesAuthTranslator
 {
   async decorateClusterDetailsWithAuth(
     clusterDetails: ServiceAccountClusterDetails,
-    // To ignore TS6133 linting error where it detects 'requestBody' is declared but its value is never read.
-    // @ts-ignore-start
-    requestBody: KubernetesRequestBody, // eslint-disable-line @typescript-eslint/no-unused-vars
-    // @ts-ignore-end
+    _requestBody: KubernetesRequestBody,
   ): Promise<ServiceAccountClusterDetails> {
     return clusterDetails;
   }
diff --git a/plugins/kubernetes-backend/src/service/KubernetesFanOutHandler.ts b/plugins/kubernetes-backend/src/service/KubernetesFanOutHandler.ts
index b15ec1386e..bf8f9ec9d8 100644
--- a/plugins/kubernetes-backend/src/service/KubernetesFanOutHandler.ts
+++ b/plugins/kubernetes-backend/src/service/KubernetesFanOutHandler.ts
@@ -110,8 +110,7 @@ const isString = (str: string | undefined): str is string => str !== undefined;
 const numberOrBigIntToNumberOrString = (
   value: number | BigInt,
 ): number | string => {
-  // @ts-ignore
-  return typeof value === 'bigint' ? value.toString() : value;
+  return typeof value === 'bigint' ? value.toString() : (value as number);
 };
 
 const toClientSafeResource = (
diff --git a/plugins/tech-radar/src/utils/polyfills/getBBox.ts b/plugins/tech-radar/src/utils/polyfills/getBBox.ts
index 3f7fa213b1..7102d3d653 100644
--- a/plugins/tech-radar/src/utils/polyfills/getBBox.ts
+++ b/plugins/tech-radar/src/utils/polyfills/getBBox.ts
@@ -19,8 +19,7 @@
 // JSDOM doesn't support this: https://github.com/jsdom/jsdom/issues/1664
 class GetBBoxPolyfill {
   static exists(): boolean {
-    // @ts-ignore
-    return typeof window.Element.prototype.getBBox !== 'undefined';
+    return typeof (window.Element.prototype as any).getBBox !== 'undefined';
   }
 
   static create(
@@ -44,8 +43,7 @@ class GetBBoxPolyfill {
       return;
     }
 
-    // @ts-ignore
-    delete window.Element.prototype.getBBox;
+    delete (window.Element.prototype as any).getBBox;
   }
 }
 
diff --git a/plugins/techdocs/src/client.test.ts b/plugins/techdocs/src/client.test.ts
index 9853b99f2f..076d90cdad 100644
--- a/plugins/techdocs/src/client.test.ts
+++ b/plugins/techdocs/src/client.test.ts
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import { Config } from '@backstage/config';
+import { MockConfigApi } from '@backstage/test-utils';
 import { UrlPatternDiscovery } from '@backstage/core-app-api';
 import { IdentityApi } from '@backstage/core-plugin-api';
 import { NotFoundError } from '@backstage/errors';
@@ -35,9 +35,11 @@ const mockEntity = {
 
 describe('TechDocsStorageClient', () => {
   const mockBaseUrl = 'http://backstage:9191/api/techdocs';
-  const configApi = {
-    getOptionalString: () => 'http://backstage:9191/api/techdocs',
-  } as Partial<Config>;
+  const configApi = new MockConfigApi({
+    techdocs: {
+      requestUrl: 'http://backstage:9191/api/techdocs',
+    },
+  });
   const discoveryApi = UrlPatternDiscovery.compile(mockBaseUrl);
   const identityApi: jest.Mocked<IdentityApi> = {
     signOut: jest.fn(),
@@ -52,8 +54,11 @@ describe('TechDocsStorageClient', () => {
   });
 
   it('should return correct base url based on defined storage', async () => {
-    // @ts-ignore Partial<Config> not assignable to Config.
-    const storageApi = new TechDocsStorageClient({ configApi, discoveryApi });
+    const storageApi = new TechDocsStorageClient({
+      configApi,
+      discoveryApi,
+      identityApi,
+    });
 
     await expect(
       storageApi.getBaseUrl('test.js', mockEntity, ''),
@@ -69,8 +74,11 @@ describe('TechDocsStorageClient', () => {
   });
 
   it('should return base url with correct entity structure', async () => {
-    // @ts-ignore Partial<Config> not assignable to Config.
-    const storageApi = new TechDocsStorageClient({ configApi, discoveryApi });
+    const storageApi = new TechDocsStorageClient({
+      configApi,
+      discoveryApi,
+      identityApi,
+    });
 
     await expect(
       storageApi.getBaseUrl('test/', mockEntity, ''),
@@ -82,7 +90,6 @@ describe('TechDocsStorageClient', () => {
   describe('syncEntityDocs', () => {
     it('should create eventsource without headers', async () => {
       const storageApi = new TechDocsStorageClient({
-        // @ts-ignore Partial<Config> not assignable to Config.
         configApi,
         discoveryApi,
         identityApi,
@@ -106,7 +113,6 @@ describe('TechDocsStorageClient', () => {
 
     it('should create eventsource with headers', async () => {
       const storageApi = new TechDocsStorageClient({
-        // @ts-ignore Partial<Config> not assignable to Config.
         configApi,
         discoveryApi,
         identityApi,
@@ -132,7 +138,6 @@ describe('TechDocsStorageClient', () => {
 
     it('should resolve to cached', async () => {
       const storageApi = new TechDocsStorageClient({
-        // @ts-ignore Partial<Config> not assignable to Config.
         configApi,
         discoveryApi,
         identityApi,
@@ -153,7 +158,6 @@ describe('TechDocsStorageClient', () => {
 
     it('should resolve to updated', async () => {
       const storageApi = new TechDocsStorageClient({
-        // @ts-ignore Partial<Config> not assignable to Config.
         configApi,
         discoveryApi,
         identityApi,
@@ -174,7 +178,6 @@ describe('TechDocsStorageClient', () => {
 
     it('should log values', async () => {
       const storageApi = new TechDocsStorageClient({
-        // @ts-ignore Partial<Config> not assignable to Config.
         configApi,
         discoveryApi,
         identityApi,
@@ -203,7 +206,6 @@ describe('TechDocsStorageClient', () => {
 
     it('should throw NotFoundError', async () => {
       const storageApi = new TechDocsStorageClient({
-        // @ts-ignore Partial<Config> not assignable to Config.
         configApi,
         discoveryApi,
         identityApi,
@@ -229,7 +231,6 @@ describe('TechDocsStorageClient', () => {
 
     it('should throw generic errors', async () => {
       const storageApi = new TechDocsStorageClient({
-        // @ts-ignore Partial<Config> not assignable to Config.
         configApi,
         discoveryApi,
         identityApi,