diff --git a/package-lock.json b/package-lock.json
index 6a7a827..3356918 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "draftapply",
-  "version": "1.0.0",
+  "version": "2.4.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "draftapply",
-      "version": "1.0.0",
+      "version": "2.4.0",
       "license": "MIT",
       "devDependencies": {
         "vitest": "^2.1.0"
diff --git a/shared/role-profile-service.js b/shared/role-profile-service.js
index 06b335b..8a687d4 100644
--- a/shared/role-profile-service.js
+++ b/shared/role-profile-service.js
@@ -122,6 +122,41 @@ export const ROLE_PROFILES = [
     ],
     positioning: 'Position the CV around analytical judgement, decision support, data quality, stakeholder requirements, and reporting outcomes. Avoid advanced modelling claims unless the CV proves them.',
   },
+  {
+    id: 'data_engineer',
+    family: 'Data Engineering',
+    domain: 'data_engineering',
+    aliases: [
+      'data engineer',
+      'database architect',
+      'data architect',
+      'database developer',
+      'database programmer',
+      'data warehouse developer',
+      'data warehousing specialist',
+      'etl developer',
+    ],
+    titlePatterns: [
+      /\bdata\s+engineer\b/i,
+      /\bdatabase\s+architect\b/i,
+      /\bdata\s+architect\b/i,
+      /\bdata\s+warehouse\b/i,
+      /\bdata\s+warehousing\b/i,
+      /\betl\s+developer\b/i,
+    ],
+    credibilitySignals: ['data pipelines', 'ETL/ELT delivery', 'data modelling', 'data quality', 'warehouse performance', 'reliable datasets'],
+    evidencePatterns: [/\betl|elt\b/i, /\bpipeline\b/i, /\bdata\s+model/i, /\bwarehouse\b/i, /\b(sql|postgres|mysql|snowflake|bigquery|redshift)\b/i, /\bairflow|prefect|dagster\b/i, /\bdbt\b/i],
+    riskClaims: ['enterprise data strategy ownership', 'org-wide data governance ownership', 'security/compliance sign-off', '24/7 production on-call'],
+    transferableEvidence: ['backend engineering -> data service reliability', 'analytics/reporting -> dataset quality improvement', 'platform engineering -> workflow orchestration and observability'],
+    skillCategories: [
+      { label: 'Pipelines & Orchestration', skills: ['ETL/ELT', 'Batch Pipelines', 'Streaming Basics', 'Workflow Orchestration'] },
+      { label: 'Data Modelling & Warehousing', skills: ['Dimensional Modelling', 'Schema Design', 'Data Warehousing', 'Performance Tuning'] },
+      { label: 'Quality & Reliability', skills: ['Data Quality Checks', 'Testing', 'Monitoring', 'Incident Response'] },
+      { label: 'SQL & Storage', skills: ['SQL', 'PostgreSQL', 'Snowflake', 'BigQuery', 'Redshift'] },
+      { label: 'Automation & Governance', skills: ['Automation', 'Documentation', 'Lineage Basics', 'Access Controls Basics'] },
+    ],
+    positioning: 'Position the CV around reliable data pipelines, data modelling, warehouse performance, data quality, and dependable datasets for stakeholders. Avoid data strategy/governance ownership claims unless explicitly proven.',
+  },
   {
     id: 'customer_success',
     family: 'Customer Success / Support',
diff --git a/tests/role-profile-service.test.js b/tests/role-profile-service.test.js
index 4e81309..4d490c9 100644
--- a/tests/role-profile-service.test.js
+++ b/tests/role-profile-service.test.js
@@ -24,6 +24,13 @@ describe('RoleProfileService', () => {
     expect(service.classify({ jobTitle: 'Healthcare Administrator' })?.id).toBe('healthcare_admin');
   });
 
+  it('classifies data-engineering job titles into the data engineering role profile', () => {
+    expect(service.classify({ jobTitle: 'Data Engineer' })?.id).toBe('data_engineer');
+    expect(service.classify({ jobTitle: 'Database Architect' })?.id).toBe('data_engineer');
+    expect(service.classify({ jobTitle: 'ETL Developer' })?.id).toBe('data_engineer');
+    expect(service.enrichJDData({ jobTitle: 'Data Engineer' }).domain).toBe('data_engineering');
+  });
+
   it('enriches parsed JD data with positioning, credibility signals, risks, and skill categories', () => {
     const enriched = service.enrichJDData({
       jobTitle: 'Product Manager',