diff --git a/.env b/.env
index f6804bf..cc6f623 100644
--- a/.env
+++ b/.env
@@ -164,3 +164,11 @@ TZ=UTC
 APP_NAME="Stock Bot Platform"
 APP_VERSION=1.0.0
 APP_DESCRIPTION="Advanced Stock Trading and Analysis Platform"
+
+# PostgreSQL
+DATABASE_POSTGRES_HOST=localhost
+DATABASE_POSTGRES_PORT=5432
+DATABASE_POSTGRES_DATABASE=trading_bot
+DATABASE_POSTGRES_USER=trading_user
+DATABASE_POSTGRES_PASSWORD=trading_pass_dev
+EOF < /dev/null
diff --git a/apps/data-service/src/index.ts b/apps/data-service/src/index.ts
index 944b161..21c40ce 100644
--- a/apps/data-service/src/index.ts
+++ b/apps/data-service/src/index.ts
@@ -1,12 +1,8 @@
-/**
- * Data Service - Market data ingestion service
- */
-
 // Framework imports
 import { Hono } from 'hono';
 import { cors } from 'hono/cors';
+import { initializeConfigSync } from '@stock-bot/config';
 // Library imports
-import { initializeServiceConfig } from '@stock-bot/config';
 import { getLogger, setLoggerConfig, shutdownLoggers } from '@stock-bot/logger';
 import { connectMongoDB } from '@stock-bot/mongodb-client';
 import { connectPostgreSQL } from '@stock-bot/postgres-client';
@@ -16,17 +12,14 @@ import { ProxyManager } from '@stock-bot/utils';
 // Local imports
 import { exchangeRoutes, healthRoutes, queueRoutes } from './routes';
 
-// Initialize configuration with automatic monorepo config inheritance
-const config = await initializeServiceConfig();
+const config = initializeConfigSync();
 const serviceConfig = config.service;
 const databaseConfig = config.database;
 const queueConfig = config.queue;
 
-// Initialize logger with config
-const logConfig = config.log;
-if (logConfig) {
+if (config.log) {
   setLoggerConfig({
-    logLevel: logConfig.level,
+    logLevel: config.log.level,
     logConsole: true,
     logFile: false,
     environment: config.environment,
@@ -101,9 +94,21 @@ async function initializeServices() {
     // Initialize queue system
     logger.debug('Initializing queue system...');
     const queueManagerConfig: QueueManagerConfig = {
-      redis: queueConfig.redis,
+      redis: queueConfig?.redis || {
+        host: 'localhost',
+        port: 6379,
+        db: 1,
+      },
       defaultQueueOptions: {
-        defaultJobOptions: queueConfig.defaultJobOptions,
+        defaultJobOptions: queueConfig?.defaultJobOptions || {
+          attempts: 3,
+          backoff: {
+            type: 'exponential',
+            delay: 1000,
+          },
+          removeOnComplete: true,
+          removeOnFail: false,
+        },
         workers: 5,
         concurrency: 20,
         enableMetrics: true,
diff --git a/libs/config/src/config-manager.ts b/libs/config/src/config-manager.ts
index e904b27..e06d098 100644
--- a/libs/config/src/config-manager.ts
+++ b/libs/config/src/config-manager.ts
@@ -82,6 +82,51 @@ export class ConfigManager<T = Record<string, unknown>> {
     return this.config;
   }
 
+  /**
+   * Initialize the configuration synchronously (only env vars, no file loading)
+   */
+  initializeSync(schema?: ConfigSchema): T {
+    if (this.config) {
+      return this.config;
+    }
+
+    this.schema = schema;
+
+    // Only use EnvLoader for sync initialization
+    const envLoader = this.loaders.find(loader => loader.constructor.name === 'EnvLoader');
+    if (!envLoader) {
+      throw new ConfigError('No EnvLoader found for synchronous initialization');
+    }
+
+    // Load env vars synchronously
+    const envLoaderInstance = envLoader as any;
+    const config = envLoaderInstance.loadSync ? envLoaderInstance.loadSync() : {};
+
+    // Add environment if not present
+    if (typeof config === 'object' && config !== null && !('environment' in config)) {
+      (config as Record<string, unknown>)['environment'] = this.environment;
+    }
+
+    // Validate if schema provided
+    if (this.schema) {
+      try {
+        this.config = this.schema.parse(config) as T;
+      } catch (error) {
+        if (error instanceof z.ZodError) {
+          throw new ConfigValidationError(
+            'Configuration validation failed',
+            error.errors
+          );
+        }
+        throw error;
+      }
+    } else {
+      this.config = config as T;
+    }
+
+    return this.config;
+  }
+
   /**
    * Get the current configuration
    */
diff --git a/libs/config/src/index.ts b/libs/config/src/index.ts
index 7001670..93ee4f5 100644
--- a/libs/config/src/index.ts
+++ b/libs/config/src/index.ts
@@ -27,6 +27,62 @@ import { EnvLoader } from './loaders/env.loader';
 // Create singleton instance
 let configInstance: ConfigManager<AppConfig> | null = null;
 
+// Synchronously load critical env vars for early initialization
+function loadCriticalEnvVarsSync(): void {
+  // Load .env file synchronously if it exists
+  try {
+    const fs = require('fs');
+    const path = require('path');
+    const envPath = path.resolve(process.cwd(), '.env');
+    if (fs.existsSync(envPath)) {
+      const envContent = fs.readFileSync(envPath, 'utf-8');
+      const lines = envContent.split('\n');
+      
+      for (const line of lines) {
+        const trimmed = line.trim();
+        if (!trimmed || trimmed.startsWith('#')) continue;
+        
+        const equalIndex = trimmed.indexOf('=');
+        if (equalIndex === -1) continue;
+        
+        const key = trimmed.substring(0, equalIndex).trim();
+        let value = trimmed.substring(equalIndex + 1).trim();
+        
+        // Remove surrounding quotes
+        if ((value.startsWith('"') && value.endsWith('"')) || 
+            (value.startsWith("'") && value.endsWith("'"))) {
+          value = value.slice(1, -1);
+        }
+        
+        // Only set if not already set
+        if (!(key in process.env)) {
+          process.env[key] = value;
+        }
+      }
+    }
+  } catch (error) {
+    // Ignore errors - env file is optional
+  }
+}
+
+// Load critical env vars immediately
+loadCriticalEnvVarsSync();
+
+/**
+ * Initialize configuration synchronously (env vars only)
+ * This should be called at the very start of the application
+ */
+export function initializeConfigSync(): AppConfig {
+  if (!configInstance) {
+    configInstance = new ConfigManager<AppConfig>({
+      loaders: [
+        new EnvLoader(''), // Environment variables only for sync
+      ]
+    });
+  }
+  return configInstance.initializeSync(appConfigSchema);
+}
+
 /**
  * Initialize the global configuration
  */
diff --git a/libs/config/src/loaders/env.loader.ts b/libs/config/src/loaders/env.loader.ts
index 9ca82ec..7d444ce 100644
--- a/libs/config/src/loaders/env.loader.ts
+++ b/libs/config/src/loaders/env.loader.ts
@@ -26,6 +26,10 @@ export class EnvLoader implements ConfigLoader {
   }
 
   async load(): Promise<Record<string, unknown>> {
+    return this.loadSync();
+  }
+
+  loadSync(): Record<string, unknown> {
     try {
       // Load root .env file - try multiple possible locations
       const possiblePaths = ['./.env', '../.env', '../../.env'];