diff --git a/.github/workflows/reusable-run-linting-check-and-unit-tests.yml b/.github/workflows/reusable-run-linting-check-and-unit-tests.yml
index 577a66f53d..fad0e768af 100644
--- a/.github/workflows/reusable-run-linting-check-and-unit-tests.yml
+++ b/.github/workflows/reusable-run-linting-check-and-unit-tests.yml
@@ -48,6 +48,7 @@ jobs:
           "packages/jmespath",
           "packages/logger",
           "packages/tracer",
+          "packages/parser",
         ]
       fail-fast: false
     steps:
@@ -91,13 +92,11 @@ jobs:
       - name: Run linting
         run: |
           npm run lint -w packages/metrics \
-            -w packages/parameters \
-            -w packages/parser
+            -w packages/parameters
       - name: Run unit tests
         run: |
           npm t -w packages/metrics \
-            -w packages/parameters \
-            -w packages/parser
+            -w packages/parameters
   check-examples:
     runs-on: ubuntu-latest
     env:
diff --git a/.husky/pre-push b/.husky/pre-push
index c3b8dee21d..ca1c0af1f6 100755
--- a/.husky/pre-push
+++ b/.husky/pre-push
@@ -1,6 +1,9 @@
 npm t \
   -w packages/metrics \
-  -w packages/parameters \
-  -w packages/parser
+  -w packages/parameters
 
-npx vitest --run --coverage --changed="$(git merge-base HEAD main)" tests/unit
+npx vitest --run \
+  --exclude tests/unit/layer-publisher.test.ts \
+  --coverage --coverage.thresholds.100 \
+  --changed="$(git merge-base HEAD main)" \
+  tests/unit
diff --git a/packages/parser/jest.config.cjs b/packages/parser/jest.config.cjs
deleted file mode 100644
index 23684da5b4..0000000000
--- a/packages/parser/jest.config.cjs
+++ /dev/null
@@ -1,30 +0,0 @@
-module.exports = {
-  displayName: {
-    name: 'Powertools for AWS Lambda (TypeScript) utility: PARSER',
-    color: 'blue',
-  },
-  runner: 'groups',
-  preset: 'ts-jest',
-  moduleNameMapper: {
-    '^(\\.{1,2}/.*)\\.js$': '$1',
-  },
-  transform: {
-    '^.+\\.ts?$': ['ts-jest'],
-  },
-  moduleFileExtensions: ['js', 'ts'],
-  collectCoverageFrom: ['**/src/**/*.ts', '!**/node_modules/**'],
-  testMatch: ['**/?(*.)+(spec|test).ts'],
-  roots: ['<rootDir>/src', '<rootDir>/tests'],
-  testPathIgnorePatterns: ['/node_modules/'],
-  testEnvironment: 'node',
-  coveragePathIgnorePatterns: ['/node_modules/', '/types'],
-  coverageThreshold: {
-    global: {
-      statements: 100,
-      branches: 100,
-      functions: 100,
-      lines: 100,
-    },
-  },
-  coverageReporters: ['json-summary', 'text', 'lcov'],
-};
diff --git a/packages/parser/package.json b/packages/parser/package.json
index c4961de3b7..ad30a4805d 100644
--- a/packages/parser/package.json
+++ b/packages/parser/package.json
@@ -10,10 +10,14 @@
     "access": "public"
   },
   "scripts": {
-    "test": "npm run test:unit",
-    "test:unit": "jest --group=unit --detectOpenHandles --coverage --verbose",
-    "jest": "jest --detectOpenHandles --coverage --verbose",
-    "watch": "jest --watch",
+    "test": "vitest --run tests/unit",
+    "test:unit": "vitest --run tests/unit",
+    "test:unit:coverage": "vitest --run tests/unit --coverage.enabled --coverage.thresholds.100 --coverage.include='src/**'",
+    "test:unit:types": "vitest --run tests/types --typecheck",
+    "test:unit:watch": "vitest tests/unit",
+    "test:e2e:nodejs18x": "echo 'Not implemented'",
+    "test:e2e:nodejs20x": "echo 'Not implemented'",
+    "test:e2e": "echo 'Not implemented'",
     "build:cjs": "tsc --build tsconfig.json && echo '{ \"type\": \"commonjs\" }' > lib/cjs/package.json",
     "build:esm": "tsc --build tsconfig.esm.json && echo '{ \"type\": \"module\" }' > lib/esm/package.json",
     "build": "npm run build:esm & npm run build:cjs",
diff --git a/packages/parser/tests/unit/types.test.ts b/packages/parser/tests/types/envelopes.test.ts
similarity index 93%
rename from packages/parser/tests/unit/types.test.ts
rename to packages/parser/tests/types/envelopes.test.ts
index 344a3afd0d..72cfbca86b 100644
--- a/packages/parser/tests/unit/types.test.ts
+++ b/packages/parser/tests/types/envelopes.test.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it } from 'vitest';
 import { z } from 'zod';
 import {
   ApiGatewayEnvelope,
@@ -30,7 +31,7 @@ describe('Types ', () => {
     { envelope: LambdaFunctionUrlEnvelope, name: 'LambdaFunctionUrl' },
     { envelope: VpcLatticeEnvelope, name: 'VpcLattice' },
     { envelope: VpcLatticeV2Envelope, name: 'VpcLatticeV2' },
-  ])('should infer object for $name envelope', (testCase) => {
+  ])('infers object types for $name envelope', (testCase) => {
     type Result = ParserOutput<typeof userSchema, typeof testCase.envelope>;
     // Define the expected type
 
@@ -57,7 +58,7 @@ describe('Types ', () => {
     { envelope: SqsEnvelope, name: 'Sqs' },
     { envelope: SnsEnvelope, name: 'Sns' },
     { envelope: SnsSqsEnvelope, name: 'SnsSqs' },
-  ])('should infer array type with $name envelope', (testCase) => {
+  ])('infers array types with $name envelope', (testCase) => {
     // Define the expected type
     type Result = ParserOutput<typeof userSchema, typeof testCase.envelope>;
 
diff --git a/packages/parser/tests/unit/envelope.test.ts b/packages/parser/tests/unit/envelope.test.ts
index 9d4fea59db..17659a6941 100644
--- a/packages/parser/tests/unit/envelope.test.ts
+++ b/packages/parser/tests/unit/envelope.test.ts
@@ -1,9 +1,4 @@
-/**
- * Test decorator parser
- *
- * @group unit/parser
- */
-
+import { describe, expect, it } from 'vitest';
 import { ZodError, z } from 'zod';
 import { Envelope } from '../../src/envelopes/envelope.js';
 
diff --git a/packages/parser/tests/unit/envelopes/apigw.test.ts b/packages/parser/tests/unit/envelopes/apigw.test.ts
index 8c0486884d..f50ffb9174 100644
--- a/packages/parser/tests/unit/envelopes/apigw.test.ts
+++ b/packages/parser/tests/unit/envelopes/apigw.test.ts
@@ -1,9 +1,4 @@
-/**
- * Test built-in API Gateway REST envelope
- *
- * @group unit/parser/envelopes/apigw
- */
-
+import { describe, expect, it } from 'vitest';
 import { ZodError } from 'zod';
 import { ApiGatewayEnvelope } from '../../../src/envelopes/index.js';
 import { ParseError } from '../../../src/errors.js';
diff --git a/packages/parser/tests/unit/envelopes/apigwv2.test.ts b/packages/parser/tests/unit/envelopes/apigwv2.test.ts
index b3f97512c8..8c96c7cdc3 100644
--- a/packages/parser/tests/unit/envelopes/apigwv2.test.ts
+++ b/packages/parser/tests/unit/envelopes/apigwv2.test.ts
@@ -1,9 +1,4 @@
-/**
- * Test built-in API Gateway HTTP API (v2) envelope
- *
- * @group unit/parser/envelopes/apigwv2
- */
-
+import { describe, expect, it } from 'vitest';
 import { ZodError } from 'zod';
 import { ApiGatewayV2Envelope } from '../../../src/envelopes/index.js';
 import { ParseError } from '../../../src/errors.js';
diff --git a/packages/parser/tests/unit/envelopes/cloudwatch.test.ts b/packages/parser/tests/unit/envelopes/cloudwatch.test.ts
index 4a62d28b93..40f13ac6b7 100644
--- a/packages/parser/tests/unit/envelopes/cloudwatch.test.ts
+++ b/packages/parser/tests/unit/envelopes/cloudwatch.test.ts
@@ -1,11 +1,6 @@
-/**
- * Test built in schema envelopes for CloudWatch
- *
- * @group unit/parser/envelopes
- */
-
 import { gzipSync } from 'node:zlib';
 import { generateMock } from '@anatine/zod-mock';
+import { describe, expect, it } from 'vitest';
 import { ZodError } from 'zod';
 import { ParseError } from '../../../src';
 import { CloudWatchEnvelope } from '../../../src/envelopes/index.js';
diff --git a/packages/parser/tests/unit/envelopes/dynamodb.test.ts b/packages/parser/tests/unit/envelopes/dynamodb.test.ts
index b04b01b4a5..0d40811445 100644
--- a/packages/parser/tests/unit/envelopes/dynamodb.test.ts
+++ b/packages/parser/tests/unit/envelopes/dynamodb.test.ts
@@ -1,11 +1,6 @@
-/**
- * Test built in schema envelopes for api gateway v2
- *
- * @group unit/parser/envelopes
- */
-
 import { generateMock } from '@anatine/zod-mock';
 import type { AttributeValue, DynamoDBStreamEvent } from 'aws-lambda';
+import { describe, expect, it } from 'vitest';
 import { ZodError, z } from 'zod';
 import { DynamoDBStreamEnvelope } from '../../../src/envelopes/index.js';
 import { ParseError } from '../../../src/errors.js';
diff --git a/packages/parser/tests/unit/envelopes/eventbridge.test.ts b/packages/parser/tests/unit/envelopes/eventbridge.test.ts
index 8761c23e7a..5b4443cd92 100644
--- a/packages/parser/tests/unit/envelopes/eventbridge.test.ts
+++ b/packages/parser/tests/unit/envelopes/eventbridge.test.ts
@@ -1,11 +1,6 @@
-/**
- * Test built in schema envelopes for event bridge
- *
- * @group unit/parser/envelopes
- */
-
 import { generateMock } from '@anatine/zod-mock';
 import type { EventBridgeEvent } from 'aws-lambda';
+import { describe, expect, it } from 'vitest';
 import { ZodError } from 'zod';
 import { EventBridgeEnvelope } from '../../../src/envelopes/index.js';
 import { ParseError } from '../../../src/errors.js';
diff --git a/packages/parser/tests/unit/envelopes/kafka.test.ts b/packages/parser/tests/unit/envelopes/kafka.test.ts
index ff750f48e0..33bb9eae60 100644
--- a/packages/parser/tests/unit/envelopes/kafka.test.ts
+++ b/packages/parser/tests/unit/envelopes/kafka.test.ts
@@ -1,11 +1,6 @@
-/**
- * Test built in schema envelopes for api gateway v2
- *
- * @group unit/parser/envelopes
- */
-
 import { generateMock } from '@anatine/zod-mock';
 import type { MSKEvent, SelfManagedKafkaEvent } from 'aws-lambda';
+import { describe, expect, it } from 'vitest';
 import { ParseError } from '../../../src';
 import { KafkaEnvelope } from '../../../src/envelopes/index.js';
 import { TestEvents, TestSchema } from '../schema/utils.js';
diff --git a/packages/parser/tests/unit/envelopes/kinesis-firehose.test.ts b/packages/parser/tests/unit/envelopes/kinesis-firehose.test.ts
index 8e67e7d3ea..1f9d7baa89 100644
--- a/packages/parser/tests/unit/envelopes/kinesis-firehose.test.ts
+++ b/packages/parser/tests/unit/envelopes/kinesis-firehose.test.ts
@@ -1,10 +1,5 @@
-/**
- * Test built in schema envelopes for Kinesis Firehose
- *
- * @group unit/parser/envelopes
- */
-
 import { generateMock } from '@anatine/zod-mock';
+import { describe, expect, it } from 'vitest';
 import { ZodError, type z } from 'zod';
 import { ParseError } from '../../../src';
 import { KinesisFirehoseEnvelope } from '../../../src/envelopes/index.js';
diff --git a/packages/parser/tests/unit/envelopes/kinesis.test.ts b/packages/parser/tests/unit/envelopes/kinesis.test.ts
index f5350b3173..28c98ee382 100644
--- a/packages/parser/tests/unit/envelopes/kinesis.test.ts
+++ b/packages/parser/tests/unit/envelopes/kinesis.test.ts
@@ -1,11 +1,6 @@
-/**
- * Test built in schema envelopes for Kinesis
- *
- * @group unit/parser/envelopes
- */
-
 import { generateMock } from '@anatine/zod-mock';
 import type { KinesisStreamEvent } from 'aws-lambda';
+import { describe, expect, it } from 'vitest';
 import { KinesisEnvelope } from '../../../src/envelopes/index.js';
 import { ParseError } from '../../../src/errors.js';
 import { TestEvents, TestSchema } from '../schema/utils.js';
diff --git a/packages/parser/tests/unit/envelopes/lambda.test.ts b/packages/parser/tests/unit/envelopes/lambda.test.ts
index d8ed4ef50a..2260e099ed 100644
--- a/packages/parser/tests/unit/envelopes/lambda.test.ts
+++ b/packages/parser/tests/unit/envelopes/lambda.test.ts
@@ -1,11 +1,6 @@
-/**
- * Test built in schema envelopes for Lambda Functions URL
- *
- * @group unit/parser/envelopes
- */
-
 import { generateMock } from '@anatine/zod-mock';
 import type { APIGatewayProxyEventV2 } from 'aws-lambda';
+import { describe, expect, it } from 'vitest';
 import { ZodError } from 'zod';
 import { ParseError } from '../../../src';
 import { LambdaFunctionUrlEnvelope } from '../../../src/envelopes/index.js';
diff --git a/packages/parser/tests/unit/envelopes/sns.test.ts b/packages/parser/tests/unit/envelopes/sns.test.ts
index f741d50a78..ff420961c9 100644
--- a/packages/parser/tests/unit/envelopes/sns.test.ts
+++ b/packages/parser/tests/unit/envelopes/sns.test.ts
@@ -1,11 +1,6 @@
-/**
- * Test built in schema envelopes for SNS
- *
- * @group unit/parser/envelopes
- */
-
 import { generateMock } from '@anatine/zod-mock';
 import type { SNSEvent, SQSEvent } from 'aws-lambda';
+import { describe, expect, it } from 'vitest';
 import { ZodError, type z } from 'zod';
 import { SnsEnvelope, SnsSqsEnvelope } from '../../../src/envelopes/index.js';
 import { ParseError } from '../../../src/errors.js';
diff --git a/packages/parser/tests/unit/envelopes/sqs.test.ts b/packages/parser/tests/unit/envelopes/sqs.test.ts
index 61bf8cdf0d..9e09bbf1d2 100644
--- a/packages/parser/tests/unit/envelopes/sqs.test.ts
+++ b/packages/parser/tests/unit/envelopes/sqs.test.ts
@@ -1,11 +1,6 @@
-/**
- * Test built in schema envelopes for sqs
- *
- * @group unit/parser/envelopes
- */
-
 import { generateMock } from '@anatine/zod-mock';
 import type { SQSEvent } from 'aws-lambda';
+import { describe, expect, it } from 'vitest';
 import { ZodError } from 'zod';
 import { SqsEnvelope } from '../../../src/envelopes/sqs.js';
 import { ParseError } from '../../../src/errors.js';
diff --git a/packages/parser/tests/unit/envelopes/vpc-lattice.test.ts b/packages/parser/tests/unit/envelopes/vpc-lattice.test.ts
index 6fee771a98..f9390315ad 100644
--- a/packages/parser/tests/unit/envelopes/vpc-lattice.test.ts
+++ b/packages/parser/tests/unit/envelopes/vpc-lattice.test.ts
@@ -1,10 +1,5 @@
-/**
- * Test built in schema envelopes for VPC Lattice
- *
- * @group unit/parser/envelopes
- */
-
 import { generateMock } from '@anatine/zod-mock';
+import { describe, expect, it } from 'vitest';
 import { ZodError } from 'zod';
 import { ParseError } from '../../../src';
 import { VpcLatticeEnvelope } from '../../../src/envelopes/index.js';
diff --git a/packages/parser/tests/unit/envelopes/vpc-latticev2.test.ts b/packages/parser/tests/unit/envelopes/vpc-latticev2.test.ts
index 6c06f642f9..83f656b766 100644
--- a/packages/parser/tests/unit/envelopes/vpc-latticev2.test.ts
+++ b/packages/parser/tests/unit/envelopes/vpc-latticev2.test.ts
@@ -1,10 +1,5 @@
-/**
- * Test built in schema envelopes for VPC Lattice V2
- *
- * @group unit/parser/envelopes
- */
-
 import { generateMock } from '@anatine/zod-mock';
+import { describe, expect, it } from 'vitest';
 import { ZodError } from 'zod';
 import { ParseError } from '../../../src';
 import { VpcLatticeV2Envelope } from '../../../src/envelopes/index.js';
diff --git a/packages/parser/tests/unit/helpers.test.ts b/packages/parser/tests/unit/helpers.test.ts
index e46c36b2b6..d52d0f44df 100644
--- a/packages/parser/tests/unit/helpers.test.ts
+++ b/packages/parser/tests/unit/helpers.test.ts
@@ -1,8 +1,4 @@
-/**
- * Test decorator parser
- *
- * @group unit/parser
- */
+import { describe, expect, it } from 'vitest';
 import { z } from 'zod';
 import { JSONStringified } from '../../src/helpers.js';
 import { AlbSchema } from '../../src/schemas/alb.js';
diff --git a/packages/parser/tests/unit/parser.decorator.test.ts b/packages/parser/tests/unit/parser.decorator.test.ts
index ef87d96765..7e0a3d3293 100644
--- a/packages/parser/tests/unit/parser.decorator.test.ts
+++ b/packages/parser/tests/unit/parser.decorator.test.ts
@@ -1,12 +1,7 @@
-/**
- * Test decorator parser
- *
- * @group unit/parser
- */
-
 import { generateMock } from '@anatine/zod-mock';
 import type { LambdaInterface } from '@aws-lambda-powertools/commons/lib/esm/types';
 import type { Context } from 'aws-lambda';
+import { describe, expect, it } from 'vitest';
 import type { z } from 'zod';
 import { EventBridgeEnvelope } from '../../src/envelopes/index.js';
 import { ParseError } from '../../src/errors.js';
diff --git a/packages/parser/tests/unit/parser.middy.test.ts b/packages/parser/tests/unit/parser.middy.test.ts
index 32d13ad05e..0528f71737 100644
--- a/packages/parser/tests/unit/parser.middy.test.ts
+++ b/packages/parser/tests/unit/parser.middy.test.ts
@@ -1,12 +1,7 @@
-/**
- * Test middleware parser
- *
- * @group unit/parser
- */
-
 import { generateMock } from '@anatine/zod-mock';
 import middy from '@middy/core';
 import type { Context } from 'aws-lambda';
+import { describe, expect, it } from 'vitest';
 import type { ZodSchema, z } from 'zod';
 import { ParseError } from '../../src';
 import { EventBridgeEnvelope, SqsEnvelope } from '../../src/envelopes';
diff --git a/packages/parser/tests/unit/schema/alb.test.ts b/packages/parser/tests/unit/schema/alb.test.ts
index 1d9a21c67e..2e71f92438 100644
--- a/packages/parser/tests/unit/schema/alb.test.ts
+++ b/packages/parser/tests/unit/schema/alb.test.ts
@@ -1,8 +1,4 @@
-/**
- * Test built in schema
- *
- * @group unit/parser/schema/
- */
+import { describe, expect, it } from 'vitest';
 import { AlbMultiValueHeadersSchema, AlbSchema } from '../../../src/schemas/';
 import { TestEvents } from './utils.js';
 
diff --git a/packages/parser/tests/unit/schema/apigw.test.ts b/packages/parser/tests/unit/schema/apigw.test.ts
index 64a3ea965d..fa205b532b 100644
--- a/packages/parser/tests/unit/schema/apigw.test.ts
+++ b/packages/parser/tests/unit/schema/apigw.test.ts
@@ -1,8 +1,4 @@
-/**
- * Test built-in API Gateway REST schemas
- *
- * @group unit/parser/schema/apigw
- */
+import { describe, expect, it } from 'vitest';
 import {
   APIGatewayProxyEventSchema,
   APIGatewayRequestAuthorizerEventSchema,
diff --git a/packages/parser/tests/unit/schema/apigwv2.test.ts b/packages/parser/tests/unit/schema/apigwv2.test.ts
index 73a03a3431..a1ab6874c3 100644
--- a/packages/parser/tests/unit/schema/apigwv2.test.ts
+++ b/packages/parser/tests/unit/schema/apigwv2.test.ts
@@ -1,8 +1,4 @@
-/**
- * Test built-in API Gateway HTTP API (v2) schemas
- *
- * @group unit/parser/schema/apigwv2
- */
+import { describe, expect, it } from 'vitest';
 import {
   APIGatewayProxyEventV2Schema,
   APIGatewayRequestAuthorizerEventV2Schema,
diff --git a/packages/parser/tests/unit/schema/cloudformation-custom-resource.test.ts b/packages/parser/tests/unit/schema/cloudformation-custom-resource.test.ts
index e00530f3bc..445aac7366 100644
--- a/packages/parser/tests/unit/schema/cloudformation-custom-resource.test.ts
+++ b/packages/parser/tests/unit/schema/cloudformation-custom-resource.test.ts
@@ -1,9 +1,4 @@
-/**
- * Test built in schema
- *
- * @group unit/parser/schema/
- */
-
+import { describe, expect, it } from 'vitest';
 import {
   CloudFormationCustomResourceCreateSchema,
   CloudFormationCustomResourceDeleteSchema,
diff --git a/packages/parser/tests/unit/schema/cloudwatch.test.ts b/packages/parser/tests/unit/schema/cloudwatch.test.ts
index e126bdb7fb..3fd6dc115f 100644
--- a/packages/parser/tests/unit/schema/cloudwatch.test.ts
+++ b/packages/parser/tests/unit/schema/cloudwatch.test.ts
@@ -1,9 +1,4 @@
-/**
- * Test built in schema
- *
- * @group unit/parser/schema/
- */
-
+import { describe, expect, it } from 'vitest';
 import { CloudWatchLogsSchema } from '../../../src/schemas/';
 import { TestEvents } from './utils.js';
 
diff --git a/packages/parser/tests/unit/schema/dynamodb.test.ts b/packages/parser/tests/unit/schema/dynamodb.test.ts
index f0d90fbc5b..a569032836 100644
--- a/packages/parser/tests/unit/schema/dynamodb.test.ts
+++ b/packages/parser/tests/unit/schema/dynamodb.test.ts
@@ -1,9 +1,4 @@
-/**
- * Test built in schema
- *
- * @group unit/parser/schema/
- */
-
+import { describe, expect, it } from 'vitest';
 import { DynamoDBStreamSchema } from '../../../src/schemas/';
 import { TestEvents } from './utils.js';
 
diff --git a/packages/parser/tests/unit/schema/eventbridge.test.ts b/packages/parser/tests/unit/schema/eventbridge.test.ts
index 4423318874..480d7a4030 100644
--- a/packages/parser/tests/unit/schema/eventbridge.test.ts
+++ b/packages/parser/tests/unit/schema/eventbridge.test.ts
@@ -1,9 +1,4 @@
-/**
- * Test built in schema
- *
- * @group unit/parser/schema/
- */
-
+import { describe, expect, it } from 'vitest';
 import { EventBridgeSchema } from '../../../src/schemas/';
 import { TestEvents } from './utils.js';
 
diff --git a/packages/parser/tests/unit/schema/kafka.test.ts b/packages/parser/tests/unit/schema/kafka.test.ts
index 6292f3001f..0c4fe096ba 100644
--- a/packages/parser/tests/unit/schema/kafka.test.ts
+++ b/packages/parser/tests/unit/schema/kafka.test.ts
@@ -1,9 +1,4 @@
-/**
- * Test built in schema
- *
- * @group unit/parser/schema/
- */
-
+import { describe, expect, it } from 'vitest';
 import {
   KafkaMskEventSchema,
   KafkaRecordSchema,
diff --git a/packages/parser/tests/unit/schema/kinesis.test.ts b/packages/parser/tests/unit/schema/kinesis.test.ts
index f8e7d93608..5ff2453f49 100644
--- a/packages/parser/tests/unit/schema/kinesis.test.ts
+++ b/packages/parser/tests/unit/schema/kinesis.test.ts
@@ -1,10 +1,5 @@
-/**
- * Test built in schema
- *
- * @group unit/parser/schema/
- */
-
 import { gunzipSync } from 'node:zlib';
+import { describe, expect, it } from 'vitest';
 import {
   KinesisDataStreamRecord,
   KinesisDataStreamSchema,
diff --git a/packages/parser/tests/unit/schema/lambda.test.ts b/packages/parser/tests/unit/schema/lambda.test.ts
index e9b0a3449b..dfce359967 100644
--- a/packages/parser/tests/unit/schema/lambda.test.ts
+++ b/packages/parser/tests/unit/schema/lambda.test.ts
@@ -1,9 +1,4 @@
-/**
- * Test built in schema
- *
- * @group unit/parser/schema/
- */
-
+import { describe, expect, it } from 'vitest';
 import { LambdaFunctionUrlSchema } from '../../../src/schemas/';
 import { TestEvents } from './utils.js';
 
diff --git a/packages/parser/tests/unit/schema/s3.test.ts b/packages/parser/tests/unit/schema/s3.test.ts
index 8798155472..dcc3a7918e 100644
--- a/packages/parser/tests/unit/schema/s3.test.ts
+++ b/packages/parser/tests/unit/schema/s3.test.ts
@@ -1,9 +1,4 @@
-/**
- * Test built in schema
- *
- * @group unit/parser/schema/
- */
-
+import { describe, expect, it } from 'vitest';
 import {
   S3EventNotificationEventBridgeSchema,
   S3ObjectLambdaEventSchema,
diff --git a/packages/parser/tests/unit/schema/ses.test.ts b/packages/parser/tests/unit/schema/ses.test.ts
index 7c27a83d97..67ee78ac95 100644
--- a/packages/parser/tests/unit/schema/ses.test.ts
+++ b/packages/parser/tests/unit/schema/ses.test.ts
@@ -1,9 +1,4 @@
-/**
- * Test built in schema
- *
- * @group unit/parser/schema/
- */
-
+import { describe, expect, it } from 'vitest';
 import { SesRecordSchema, SesSchema } from '../../../src/schemas/';
 import type { SesEvent } from '../../../src/types';
 import type { SesRecord } from '../../../src/types/schema';
diff --git a/packages/parser/tests/unit/schema/sns.test.ts b/packages/parser/tests/unit/schema/sns.test.ts
index 7ddb7f1132..8ea5bde8fc 100644
--- a/packages/parser/tests/unit/schema/sns.test.ts
+++ b/packages/parser/tests/unit/schema/sns.test.ts
@@ -1,9 +1,4 @@
-/**
- * Test built in schema
- *
- * @group unit/parser/schema/
- */
-
+import { describe, expect, it } from 'vitest';
 import {
   SnsNotificationSchema,
   SnsRecordSchema,
diff --git a/packages/parser/tests/unit/schema/sqs.test.ts b/packages/parser/tests/unit/schema/sqs.test.ts
index 9514338395..7e52ce99ef 100644
--- a/packages/parser/tests/unit/schema/sqs.test.ts
+++ b/packages/parser/tests/unit/schema/sqs.test.ts
@@ -1,9 +1,4 @@
-/**
- * Test built in schema
- *
- * @group unit/parser/schema/
- */
-
+import { describe, expect, it } from 'vitest';
 import { SqsRecordSchema, SqsSchema } from '../../../src/schemas/';
 import type { SqsEvent } from '../../../src/types';
 import type { SqsRecord } from '../../../src/types/schema';
diff --git a/packages/parser/tests/unit/schema/utils.ts b/packages/parser/tests/unit/schema/utils.ts
index cb0647aed7..aa5c9ab531 100644
--- a/packages/parser/tests/unit/schema/utils.ts
+++ b/packages/parser/tests/unit/schema/utils.ts
@@ -102,7 +102,10 @@ const filenames = [
 
 type TestEvents = { [K in (typeof filenames)[number]]: unknown };
 const loadFileContent = (filename: string): string =>
-  readFileSync(`./tests/events/${filename}.json`, 'utf-8');
+  readFileSync(
+    join(__dirname, '..', '..', 'events', `${filename}.json`),
+    'utf-8'
+  );
 
 const createTestEvents = (fileList: readonly string[]): TestEvents => {
   const testEvents: Partial<TestEvents> = {};
diff --git a/packages/parser/tests/unit/schema/vpc-lattice.test.ts b/packages/parser/tests/unit/schema/vpc-lattice.test.ts
index 643714fb47..472e6514e6 100644
--- a/packages/parser/tests/unit/schema/vpc-lattice.test.ts
+++ b/packages/parser/tests/unit/schema/vpc-lattice.test.ts
@@ -1,9 +1,4 @@
-/**
- * Test built in schema
- *
- * @group unit/parser/schema/
- */
-
+import { describe, expect, it } from 'vitest';
 import { VpcLatticeSchema } from '../../../src/schemas/';
 import { TestEvents } from './utils.js';
 
diff --git a/packages/parser/tests/unit/schema/vpc-latticev2.test.ts b/packages/parser/tests/unit/schema/vpc-latticev2.test.ts
index 5e1b6c7343..5c731a3a70 100644
--- a/packages/parser/tests/unit/schema/vpc-latticev2.test.ts
+++ b/packages/parser/tests/unit/schema/vpc-latticev2.test.ts
@@ -1,9 +1,4 @@
-/**
- * Test built in schema
- *
- * @group unit/parser/schema/
- */
-
+import { describe, expect, it } from 'vitest';
 import { VpcLatticeV2Schema } from '../../../src/schemas/';
 import { TestEvents } from './utils.js';
 
diff --git a/packages/parser/vitest.config.ts b/packages/parser/vitest.config.ts
new file mode 100644
index 0000000000..9f1196ef1f
--- /dev/null
+++ b/packages/parser/vitest.config.ts
@@ -0,0 +1,8 @@
+import { defineProject } from 'vitest/config';
+
+export default defineProject({
+  test: {
+    environment: 'node',
+    setupFiles: ['../testing/src/setupEnv.ts'],
+  },
+});
diff --git a/vitest.config.ts b/vitest.config.ts
index 5bbd1d007c..5f320c2df3 100644
--- a/vitest.config.ts
+++ b/vitest.config.ts
@@ -21,7 +21,8 @@ export default defineConfig({
         'packages/logger/src/types/**',
         'packages/metrics/**',
         'packages/parameters/**',
-        'packages/parser/**',
+        'packages/parser/src/types/**',
+        'layers/**',
         'packages/testing/**',
         'packages/tracer/src/types/**',
       ],