Experience: 2–4 Years

Technology: MEAN Stack | TypeScript | Real-Time Systems | AI/LLM

Job Summary-

We are looking for a skilled Full Stack Developer with 2–4 years of experience who is proficient in the MEAN stack (MongoDB, Express.js, Angular, Node.js) and TypeScript. The ideal candidate should have hands-on experience building scalable SaaS applications, real-time communication systems, API integrations, and AI-powered solutions.

Key Responsiblities:

- Develop, maintain, and enhance scalable web applications using MongoDB, Express.js, Angular, Node.js, and TypeScript .
- Design and implement real-time systems using WebSockets, WebRTC, streaming audio, event-driven architectures, queues, and asynchronous processing.
- Build and integrate applications with telephony and SIP providers , handling real-world production challenges, reliability, and third-party API limitations.
- Integrate messaging platforms and APIs , including the WhatsApp Business API , ensuring robust and reliable communication workflows.
- Work with LLM APIs, tool/function calling, and speech/voice AI models to develop AI-powered features and workflows.
- Evaluate AI solutions not only for accuracy but also for latency, cost, scalability, reliability, and failure handling .
- Design efficient MongoDB schemas and data models for multi-tenant SaaS applications.
- Develop and maintain secure,



scalable RESTful APIs and backend services .
- Build data models and workflows supporting contacts, conversations, tickets, workflows, and role-based access control (RBAC) .
- Troubleshoot, debug, and optimize applications across development and production environments.
- Collaborate with product, engineering, and cross-functional teams to translate business requirements into scalable technical solutions.

Required Skills:
- 2–4 years of professional experience in Full Stack Development.
- Strong hands-on expertise in the MEAN stack :
- MongoDB
- Express.js
- Angular
- Node.js
- Strong proficiency in TypeScript and JavaScript .
- Experience with WebSockets, WebRTC, real-time communication, streaming, and event-driven systems .
- Experience working with queues and asynchronous processing .
- Hands-on experience integrating third-party APIs, telephony/SIP platforms, and messaging APIs .
- Familiarity with WhatsApp Business API or similar communication platforms.
- Experience working with LLM APIs, function/tool calling, and speech/voice AI models .
- Solid understanding of MongoDB schema design, API development, and multi-tenant SaaS architecture .
- Understanding of authentication, authorization, and role-based access control (RBAC) .
- Strong debugging, problem-solving, and production troubleshooting skills.

📌 MEAN Stack Developer (Angular Exp. Mandatory) | 2+ YOE (Noida)
🏢 Axionix Technologies
📍 Noida