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

- Robust 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