diff --git a/backend/src/graphql/directive/isAuthorized.ts b/backend/src/graphql/directive/isAuthorized.ts
index 117cff056..b8595a2bd 100644
--- a/backend/src/graphql/directive/isAuthorized.ts
+++ b/backend/src/graphql/directive/isAuthorized.ts
@@ -1,8 +1,3 @@
-/* eslint-disable @typescript-eslint/no-unsafe-member-access */
-/* eslint-disable @typescript-eslint/no-unsafe-call */
-/* eslint-disable @typescript-eslint/no-explicit-any */
-/* eslint-disable @typescript-eslint/no-unsafe-argument */
-
 import { User } from '@entity/User'
 import { AuthChecker } from 'type-graphql'
 
@@ -10,9 +5,10 @@ import { INALIENABLE_RIGHTS } from '@/auth/INALIENABLE_RIGHTS'
 import { decode, encode } from '@/auth/JWT'
 import { RIGHTS } from '@/auth/RIGHTS'
 import { ROLE_UNAUTHORIZED, ROLE_USER, ROLE_ADMIN } from '@/auth/ROLES'
+import { Context } from '@/server/context'
 import { LogError } from '@/server/LogError'
 
-export const isAuthorized: AuthChecker<any> = async ({ context }, rights) => {
+export const isAuthorized: AuthChecker<Context> = async ({ context }, rights) => {
   context.role = ROLE_UNAUTHORIZED // unauthorized user
 
   // is rights an inalienable right?
@@ -47,7 +43,7 @@ export const isAuthorized: AuthChecker<any> = async ({ context }, rights) => {
   }
 
   // check for correct rights
-  const missingRights = (<RIGHTS[]>rights).filter((right) => !context.role.hasRight(right))
+  const missingRights = (<RIGHTS[]>rights).filter((right) => !context.role?.hasRight(right))
   if (missingRights.length !== 0) {
     throw new LogError('401 Unauthorized')
   }
diff --git a/backend/src/graphql/resolver/ContributionResolver.ts b/backend/src/graphql/resolver/ContributionResolver.ts
index f6ce30e52..1884fecc4 100644
--- a/backend/src/graphql/resolver/ContributionResolver.ts
+++ b/backend/src/graphql/resolver/ContributionResolver.ts
@@ -1,4 +1,3 @@
-/* eslint-disable @typescript-eslint/restrict-template-expressions */
 import { IsNull, getConnection } from '@dbTools/typeorm'
 import { Contribution as DbContribution } from '@entity/Contribution'
 import { ContributionMessage } from '@entity/ContributionMessage'
@@ -229,11 +228,11 @@ export class ContributionResolver {
     contributionMessage.createdAt = contributionToUpdate.updatedAt
       ? contributionToUpdate.updatedAt
       : contributionToUpdate.createdAt
-    const changeMessage = `${contributionToUpdate.contributionDate}
+    const changeMessage = `${contributionToUpdate.contributionDate.toString()}
     ---
     ${contributionToUpdate.memo}
     ---
-    ${contributionToUpdate.amount}`
+    ${contributionToUpdate.amount.toString()}`
     contributionMessage.message = changeMessage
     contributionMessage.isModerator = false
     contributionMessage.userId = user.id
@@ -259,7 +258,7 @@ export class ContributionResolver {
     @Ctx() context: Context,
   ): Promise<Decimal[]> {
     logger.info(
-      `adminCreateContribution(email=${email}, amount=${amount}, memo=${memo}, creationDate=${creationDate})`,
+      `adminCreateContribution(email=${email}, amount=${amount.toString()}, memo=${memo}, creationDate=${creationDate})`,
     )
     const clientTimezoneOffset = getClientTimezoneOffset(context)
     if (!isValidDateString(creationDate)) {
diff --git a/backend/src/index.ts b/backend/src/index.ts
index b522e1ff5..86f78326d 100644
--- a/backend/src/index.ts
+++ b/backend/src/index.ts
@@ -1,4 +1,3 @@
-/* eslint-disable @typescript-eslint/no-explicit-any */
 import { CONFIG } from './config'
 import { startValidateCommunities } from './federation/validateCommunities'
 import { createServer } from './server/createServer'
diff --git a/backend/src/seeds/factory/creation.ts b/backend/src/seeds/factory/creation.ts
index 6a3aaa3e7..5b4c56c57 100644
--- a/backend/src/seeds/factory/creation.ts
+++ b/backend/src/seeds/factory/creation.ts
@@ -2,9 +2,6 @@
 /* eslint-disable @typescript-eslint/no-unsafe-assignment */
 /* eslint-disable @typescript-eslint/no-unsafe-member-access */
 /* eslint-disable @typescript-eslint/unbound-method */
-/* eslint-disable @typescript-eslint/no-explicit-any */
-/* eslint-disable @typescript-eslint/explicit-module-boundary-types */
-
 import { Contribution } from '@entity/Contribution'
 import { Transaction } from '@entity/Transaction'
 import { ApolloServerTestClient } from 'apollo-server-testing'
@@ -12,7 +9,6 @@ import { ApolloServerTestClient } from 'apollo-server-testing'
 import { findUserByEmail } from '@/graphql/resolver/UserResolver'
 import { CreationInterface } from '@/seeds/creation/CreationInterface'
 import { login, createContribution, confirmContribution } from '@/seeds/graphql/mutations'
-// import CONFIG from '@/config/index'
 
 export const nMonthsBefore = (date: Date, months = 1): string => {
   return new Date(date.getFullYear(), date.getMonth() - months, 1).toISOString()
diff --git a/backend/src/seeds/index.ts b/backend/src/seeds/index.ts
index 8ca42fc79..c2533765e 100644
--- a/backend/src/seeds/index.ts
+++ b/backend/src/seeds/index.ts
@@ -1,10 +1,3 @@
-/* eslint-disable @typescript-eslint/no-unsafe-return */
-/* eslint-disable @typescript-eslint/no-unsafe-member-access */
-/* eslint-disable @typescript-eslint/no-unsafe-assignment */
-/* eslint-disable @typescript-eslint/no-unsafe-call */
-/* eslint-disable @typescript-eslint/no-explicit-any */
-/* eslint-disable @typescript-eslint/explicit-module-boundary-types */
-
 import { entities } from '@entity/index'
 import { createTestClient } from 'apollo-server-testing'
 import { name, internet, datatype } from 'faker'
@@ -43,10 +36,12 @@ export const cleanDB = async () => {
   }
 }
 
-const resetEntity = async (entity: any) => {
+const [entityTypes] = entities
+
+const resetEntity = async (entity: typeof entityTypes) => {
   const items = await entity.find({ withDeleted: true })
   if (items.length > 0) {
-    const ids = items.map((i: any) => i.id)
+    const ids = items.map((i) => i.id)
     await entity.delete(ids)
   }
 }
diff --git a/backend/src/server/context.ts b/backend/src/server/context.ts
index a52c979e3..c7e59365b 100644
--- a/backend/src/server/context.ts
+++ b/backend/src/server/context.ts
@@ -13,6 +13,7 @@ export interface Context {
   role?: Role
   user?: dbUser
   clientTimezoneOffset?: number
+  gradidoID?: string
   // hack to use less DB calls for Balance Resolver
   lastTransaction?: dbTransaction
   transactionCount?: number
diff --git a/backend/src/server/plugins.ts b/backend/src/server/plugins.ts
index cb0e4e443..1da062b83 100644
--- a/backend/src/server/plugins.ts
+++ b/backend/src/server/plugins.ts
@@ -5,7 +5,6 @@
 /* eslint-disable @typescript-eslint/no-unsafe-return */
 /* eslint-disable @typescript-eslint/no-explicit-any */
 /* eslint-disable @typescript-eslint/explicit-module-boundary-types */
-
 import clonedeep from 'lodash.clonedeep'
 
 const setHeadersPlugin = {
diff --git a/backend/test/helpers.ts b/backend/test/helpers.ts
index b43dc2d96..d42db959f 100644
--- a/backend/test/helpers.ts
+++ b/backend/test/helpers.ts
@@ -1,12 +1,4 @@
-/* eslint-disable @typescript-eslint/no-unsafe-assignment */
-/* eslint-disable @typescript-eslint/no-unsafe-return */
-/* eslint-disable @typescript-eslint/no-unsafe-call */
-/* eslint-disable @typescript-eslint/no-unsafe-member-access */
 /* eslint-disable @typescript-eslint/unbound-method */
-/* eslint-disable @typescript-eslint/no-explicit-any */
-/* eslint-disable @typescript-eslint/explicit-module-boundary-types */
-/* eslint-disable @typescript-eslint/no-unsafe-argument */
-
 import { entities } from '@entity/index'
 import { createTestClient } from 'apollo-server-testing'
 
@@ -15,6 +7,7 @@ import { createServer } from '@/server/createServer'
 import { i18n, logger } from './testSetup'
 
 export const headerPushMock = jest.fn((t) => {
+  // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment, @typescript-eslint/no-unsafe-member-access
   context.token = t.value
 })
 
@@ -34,7 +27,7 @@ export const cleanDB = async () => {
   }
 }
 
-export const testEnvironment = async (testLogger: any = logger, testI18n: any = i18n) => {
+export const testEnvironment = async (testLogger = logger, testI18n = i18n) => {
   const server = await createServer(context, testLogger, testI18n)
   const con = server.con
   const testClient = createTestClient(server.apollo)
@@ -43,10 +36,12 @@ export const testEnvironment = async (testLogger: any = logger, testI18n: any =
   return { mutate, query, con }
 }
 
-export const resetEntity = async (entity: any) => {
+const [entityTypes] = entities
+
+export const resetEntity = async (entity: typeof entityTypes) => {
   const items = await entity.find({ withDeleted: true })
   if (items.length > 0) {
-    const ids = items.map((i: any) => i.id)
+    const ids = items.map((i) => i.id)
     await entity.delete(ids)
   }
 }
diff --git a/backend/test/testSetup.ts b/backend/test/testSetup.ts
index 12bd25d64..a61556798 100644
--- a/backend/test/testSetup.ts
+++ b/backend/test/testSetup.ts
@@ -1,5 +1,3 @@
-/* eslint-disable @typescript-eslint/no-unsafe-assignment */
-/* eslint-disable @typescript-eslint/no-unsafe-return */
 import { CONFIG } from '@/config'
 import { i18n } from '@/server/localization'
 import { backendLogger as logger } from '@/server/logger'
@@ -10,7 +8,7 @@ CONFIG.EMAIL_TEST_MODUS = false
 jest.setTimeout(1000000)
 
 jest.mock('@/server/logger', () => {
-  const originalModule = jest.requireActual('@/server/logger')
+  const originalModule = jest.requireActual<typeof logger>('@/server/logger')
   return {
     __esModule: true,
     ...originalModule,
@@ -27,7 +25,7 @@ jest.mock('@/server/logger', () => {
 })
 
 jest.mock('@/server/localization', () => {
-  const originalModule = jest.requireActual('@/server/localization')
+  const originalModule = jest.requireActual<typeof i18n>('@/server/localization')
   return {
     __esModule: true,
     ...originalModule,