I build backend systems, AI-powered workflows, and developer infrastructure.

Currently working as a Software Engineer I at Rocket India, working on production systems involving distributed services, AI pipelines, Kubernetes, Kafka, and cloud infrastructure.

I'm interested in opportunities involving backend engineering, fintech, AI systems, distributed systems, and product engineering.

Backend Engineering
        ↓
Distributed Systems
        ↓
AI / GenAI Applications
        ↓
Cloud & Infrastructure
        ↓
Fintech & Developer Platforms

I enjoy taking problems from:

"How should this work?" → "How should this scale?" → "How do we make it reliable?"

• LLM-powered applications
• RAG systems
• AI workflow orchestration
• Prompt engineering
• AI output validation & reliability
• Gemini
• Local-first AI with Ollama
• Python AI services

A self-hosted workflow orchestration platform inspired by systems such as Temporal and Kubernetes.

Focus:

• Distributed workflow execution
• Worker-based architecture
• HTTP & AI workflow nodes
• Kafka-based event processing
• PostgreSQL persistence
• Redis
• Kubernetes
• AI/LLM integration
• Execution context management
• Workflow versioning
• Control-plane / worker separation

Built with: Java • Spring Boot • PostgreSQL • Redis • Kafka • Kubernetes • AI

Production-oriented AI pipeline for automated financial document processing.

SFTP
 ↓
Document Processing
 ↓
AI / LLM
 ↓
Validation & Mapping
 ↓
Workflow Execution
 ↓
Vendor Review System

Technologies:

Python • FastAPI • Gemini • Kubernetes • Kafka • GCP • Firestore • Playwright

The interesting part isn't just calling an LLM.

It's making AI output reliable enough to be used inside real business workflows.

An AI-powered financial research project focused on combining:

• Market data
• Financial news
• AI analysis
• Historical information
• Structured investment insights

Built with a local-first / low-cost architecture.

        System Design
             │
             ▼
    Distributed Systems
             │
             ▼
       Backend Design
             │
       ┌─────┴─────┐
       ▼           ▼
     Java        .NET
       │           │
       └─────┬─────┘
             ▼
        AI Systems
             │
             ▼
      Fintech Products

• System Design
• Distributed Systems
• Java & Spring Boot
• .NET
• AI Agents
• RAG
• LLM Infrastructure
• Event-driven architecture
• Cloud architecture
• Fintech systems

Payments • Lending • Credit • Financial Data • Investment Infrastructure

LLM Applications • AI Agents • RAG • AI Infrastructure • AI Reliability

Distributed Systems • Event-Driven Systems • APIs • Workflow Engines • Scalability

Kubernetes • Cloud • Observability • Developer Infrastructure

Currently preparing deeply for:

Data Structures & Algorithms
              +
System Design
              +
Backend Engineering
              +
Java / Spring Boot
              +
.NET
              +
AI Systems

I focus on understanding why a system works, not just memorizing interview answers.

I'm open to conversations about:

• Backend Engineering
• Fintech
• AI Engineering
• Distributed Systems
• Interesting engineering problems
• Software Engineering opportunities

📫 Email: ezhilan.dev.4@gmail.com

💼 LinkedIn: linkedin.com/in/ezhilan-nagarajan

🌐 Portfolio: ezhilan-portfolio.netlify.app

I like building systems that are simple enough to understand, reliable enough to trust, and scalable enough to matter.