Scale CPaaS Infrastructure & Reliability

### Freelance Platform Lead / DevOps & SRE Consultant — CPaaS

We are looking for an experienced **Platform Lead / DevOps & SRE Consultant** to scale and production-harden our existing CPaaS platform.

### Our Stack
- **Node.js + TypeScript**
- **PostgreSQL**
- **DigitalOcean**
- WhatsApp Business API
- RCS
- SMS

We have **3 full-stack developers**, each with ~4 years of experience.

### Key Requirement

We need someone who can **take ownership of platform scalability, reliability and infrastructure** and help us achieve **10M+ messages/day**.

Responsibilities:

- Audit current architecture and infrastructure
- Identify performance and scalability bottlenecks
- Design scalable, highly available architecture
- Optimize Node.js, PostgreSQL, APIs, queues/workers and infrastructure
- Implement CI/CD, monitoring, logging and alerting
- Set up load/stress testing and capacity benchmarking
- Establish maximum sustainable **TPS**
- Improve fault tolerance, auto-scaling and disaster recovery
- Conduct production-readiness and reliability assessment
- Work closely with our 3 developers and guide them on platform architecture

### Expected Outcome

We need **proven, measurable capacity**, including:

- Maximum sustainable TPS
- 10M+ messages/day capacity validation
- Load/stress test results
- Bottlenecks identified and resolved
- Scalable production architecture
- Monitoring & alerting setup
- Reliability and disaster-recovery recommendations

### Must Have

- Strong **DevOps + SRE + Platform Engineering** experience
- Experience scaling **high-TPS / distributed systems**
- Strong **Node.js + TypeScript + PostgreSQL**
- Docker/Kubernetes experience
- CI/CD, observability and infrastructure automation
- Load/performance testing
- Cloud infrastructure experience
- CPaaS/messaging/SMS/WhatsApp/RCS experience preferred

**Please mention in your proposal:**
1. Highest TPS you have handled
2. Highest daily traffic/message volume
3. Largest platform you have scaled
4. Your experience with Node.js + PostgreSQL at scale
5. Cloud/DevOps/SRE technologies you have worked with
6. One real example where you improved platform capacity or reliability

**We need a hands-on Platform Lead who can build, test and prove the capacity—not just provide recommendations.**