Requirements

1. Backend Architecture & System Design

• Design and implement scalable backend architecture
  
• Define service boundaries, modular structure, and API standards
  
• Ensure high performance, reliability, and maintainability
  
• Make key decisions on:
  • Data modeling
    
  • Caching strategies
    
  • Async processing
    

2. API Development & Integration

• Build robust REST APIs for:
  • Onboarding & authentication
    
  • Contacts management
    
  • Outreach campaigns
    
  • Email workflows
    
  • Dashboard analytics
    
• Ensure clean API contracts for frontend integration
  
• Implement authentication, authorization, and role -based access
  

3. Database Design (PostgreSQL)

• Design normalized and scalable schemas
  
• Optimize queries for performance
  
• Handle:
  • Indexing strategies
    
  • Transaction management
    
  • Data migrations
    
• Work with high -volume datasets:
  • Contacts
    
  • Outreach logs
    
  • Email tracking
    

4. Agentic AI Workflow Integration

• Build and integrate agentic workflows using LangGraph (or similar)
  
• Design systems for:
  • Automated outreach logic
    
  • Intelligent email generation
    
  • Decision -making pipelines
    
• Manage orchestration of multi -step AI workflows
  

5. Data Pipelines & Processing

• Design and implement data pipelines for:
  • Contact ingestion (bulk uploads)
    
  • Email tracking and analytics
    
  • Event processing
    
• Handle asynchronous processing:
  • Queues
    
  • Workers
    
• Ensure data consistency and reliability
  

6. Observability & Monitoring

• Implement observability using OpenTelemetry
  
• Enable:
  • Tracing
    
  • Logging
    
  • Metrics collection
    
• Ensure system is production -ready and debuggable
  

7. Performance & Scalability

• Optimize APIs and database queries
  
• Design systems for scale:
  • Large contact datasets
    
  • High email volume
    
• Implement:
  • Caching layers
    
  • Background jobs where required
    

8. Collaboration & Ownership

• Work closely with:
  • Frontend developers
    
  • Product / architecture team
    
  • AI / ML engineers
    
• Translate product requirements into backend systems
  
• Take full ownership of delivery and timelines
  

9. Testing & Deployment

• Write clean, testable code
  
• Implement unit and integration tests
  
• Support CI/CD pipelines
  
• Ensure production stability and bug fixes
  
  

Required Skills

Core Backend

• Strong experience in Node.js and Express.js
  
• Deep understanding of REST API design
  
• Experience with scalable backend architectures
  

Database

• Strong expertise in PostgreSQL
  
• Experience in:
  • Schema design
    
  • Query optimization
    
  • Handling large datasets
    

AI / Agentic Systems

• Hands -on experience with LangGraph or similar frameworks
  
• Understanding of:
  • LLM workflows
    
  • Agent orchestration
    
  • Prompt pipelines
    

Data & Systems

• Experience building data pipelines
  
• Knowledge of async processing (queues/workers)
  
• Understanding of distributed systems concepts
  

Observability

• Experience with OpenTelemetry
  
• Familiarity with logging, tracing, and monitoring systems