I am a Backend Engineer with 3+ years of experience building scalable business applications, SaaS platforms, secure integrations, and data-driven backend systems.

I specialize in designing backend architectures, REST APIs, database optimization, third-party integrations, and reliable production workflows using Node.js, Laravel, MySQL, and cloud technologies.

Currently focused on building scalable systems, improving backend performance, and exploring AI-powered application development with LLM-based workflows.

• Backend Architecture & API Design
• Scalable SaaS Application Development
• Database Design & Query Optimization
• Third-party API Integrations
• Secure Authentication & Authorization Systems
• Cloud Storage & File Processing Systems
• AI-assisted Development & LLM Integrations

Backend development for a fleet management platform handling logistics operations.

Key contributions:

• Designed scalable backend services for trip management, fuel analytics, tyre tracking, payroll, and profitability reporting.
• Built data-heavy workflows requiring optimized database operations.
• Implemented caching strategies for improving API and dashboard performance.
• Integrated payment workflows using Razorpay.

Secure financial compliance system integrating with India's NIC GST E-Invoicing APIs.

Highlights:

• Implemented RSA-based authentication.
• Applied AES-256 encryption for secure payload processing.
• Automated invoice generation, validation, cancellation, and GST calculations.
• Built reliable workflows for compliance-driven financial operations.

Cloud-native file management utility built for scalable storage operations.

Features:

• AWS S3 and DigitalOcean Spaces integration.
• OTP-based authentication.
• Secure pre-signed URL downloads.
• Chunked file downloads supporting large files.
• Stream-based archive generation without temporary storage.

Enterprise order management platform supporting large-scale business operations.

Implemented:

• Order lifecycle management.
• Inventory workflows.
• Delivery tracking.
• Audit logging for business activity tracking.
• Database optimization for operational efficiency.

Product-based HR management platform.

Built:

• Employee lifecycle workflows.
• Leave and attendance management.
• Approval systems.
• Role-Based Access Control (RBAC).
• Scheduled background jobs for automated processes.

• RESTful API Design
• Authentication & Authorization
• Role-Based Access Control
• Audit Logging
• Database Indexing
• Query Optimization
• Secure File Handling
• Webhook Integrations
• Background Automation

Interested in building AI-powered applications using:

• LLM APIs
• Prompt Engineering
• Retrieval-Augmented Generation (RAG)
• AI-assisted Development Workflows
• Document Processing Systems

Exploring intelligent automation patterns for building reliable AI-enabled products.

• Anthropic Claude Code Certificate
  AI-assisted development and LLM-powered engineering workflows.

LinkedIn: YOUR_LINKEDIN
Email: rockyrawat@gmail.com