Software Engineer – Kolkata, India

Job Description

Are you looking for software engineer jobs in Kolkata? Fusion CX is hiring a Software Engineer to work on a high-impact, AI-driven platform that combines real-time communication technologies with modern backend and frontend development. This is a single open position, to be filled either from Kolkata or Legazpi, and is ideal for engineers who want hands-on ownership, exposure to advanced AI systems, and the opportunity to build scalable products used in real-world environments.
Job Description:

Fusion CX is hiring a Software Engineer to join our engineering team in Kolkata. You will work closely with distributed teams across India and the Philippines, contributing to an AI-driven platform built on modern real-time communication and AI technologies such as WebRTC, SIP, LLMs, STT, and TTS.

This role requires hands-on development expertise, strong accountability for deliverables, and the ability to thrive in a fast-paced engineering environment.

Tech Stack
• Backend: Python
• Frontend: Next.js
• Database: PostgreSQL

Key Responsibilities
• Collaborate with cross-location engineering teams on feature development and integrations
• Integrate Stripe and other third-party services into existing systems
• Develop, test, and maintain scalable software solutions
• Enhance and extend features within the current application architecture
• Debug, troubleshoot, and resolve technical issues efficiently
• Improve application performance, reliability, and maintainability
• Stay updated with emerging AI technologies and software engineering best practices

This is a single position and will be filled from either the Kolkata, India, location or the Legazpi, Philippines location, based on final selection.
Job Requirements:

Required Qualifications
• Strong experience with Python and Next.js
• Experience working with PostgreSQL
• Hands-on experience with Docker
• Comfortable working in Ubuntu/Linux environments
• Proven experience integrating and working with Stripe
• Experience working with LiveKit
• Familiarity with LLM, STT, and TTS providers such as:
• OpenAI
• Deepgram
• ElevenLabs

Optional / Nice-to-Have
• Familiarity with AWS EC2
• Experience using Jira, Confluence, Notion, or similar collaboration tools
• Experience with GitLab for version control and CI/CD pipelines

Work Mode
• On-site
• Kolkata, India

Why Join Fusion CX?

Join Fusion CX in Kolkata and work on cutting-edge, AI-driven engineering projects with real-world impact. You will collaborate closely with global engineering teams while building scalable, high-performance systems using modern technologies. Fusion CX offers a structured, on-site engineering environment where ownership, problem-solving, and technical depth are valued. This role provides long-term growth opportunities for engineers who want to strengthen their backend, frontend, and AI integration skills while contributing to products used at scale.