MERN Stack Developer; CPaaS

Position: MERN Stack Developer (CPaaS Experience Required)
We are looking for an experienced MERN Stack Developer with hands-on exposure to CPaaS (Communication Platform as a Service) platforms. The ideal candidate will be responsible for developing and maintaining scalable communication solutions, including customer onboarding, campaign management, and billing workflows.

Key Responsibilities

- Develop and maintain web applications using the MERN stack (Mongo

DB, Express.js, React.js, Node.js)
- Design and implement backend APIs for messaging, voice, Whats App, OTP, and campaign workflows
- Build modules for customer onboarding, KYC, campaign management, routing, and billing systems
- Integrate third-party APIs (SMS gateways, Whats App Business API, DLT platforms, payment gateways, etc.)
- Optimize applications for maximum speed and scalability
- Ensure system security, compliance (TRAI/DLT), and data protection standards
- Work closely with product, Dev Ops, and business teams for feature development
- Troubleshoot, debug, and upgrade existing systems

Required

Skills & Qualifications

- Minimum 3+ years of experience in MERN stack development
- Strong experience in Node.js, Express.js, Mongo

DB, and React.js
- Hands-on experience working on or integrating with CPaaS platforms
- Understanding of SMS, Voice, Whats App APIs, SIP, SMPP, or messaging protocols

- Experience with RESTful APIs and microservices architecture
- Knowledge of authentication systems (JWT, OAuth, RBAC)

- Experience with cloud platforms (AWS, Azure, or GCP)
- Familiarity with Git and CI/CD pipelines

Good to Have

- Experience with high-volume messaging systems
- Knowledge of telecom compliance (TRAI, DLT registration, template approval)
- Experience building billing engines or usage-based pricing systems
- Docker/Kubernetes knowledge