Senior Full Stack Engineer (Voice AI)

Company Description

Launched in 2007 by Aloke Bajpai & Rajnish Kumar, ixigo (Le Travenues Technology Limited) is a technology company focused on empowering Indian travellers to plan, book and manage their trips across rail, air, buses and hotels. ixigo assists travellers in making smarter travel decisions by leveraging artificial intelligence. The ixigo, ConfirmTkt and AbhiBus apps allow travellers to book train tickets, flight tickets, bus tickets, hotels, and cabs, and provide travel utility tools and services developed using in-house proprietary algorithms and crowd-sourced information. With over 54 crore Annual Active Users in Fiscal 2025, ixigo is the leading OTA for Next Billion Users in India. For more information, please visit http://www.ixigo.com

Job Description

We are looking for a Senior Full Stack Engineer with strong backend engineering skills and hands-on experience with AI. You should be comfortable working across the stack, but your core strength should be building scalable backend systems, APIs, and AI-powered product features. You will own features end-to-end, from architecture and development to deployment, monitoring, and support.

Roles & Responsibilities

• Design, build, and maintain scalable backend services, APIs, and distributed systems
• Build AI-powered features using LLMs such as OpenAI, Anthropic, Gemini, or similar
• Develop RAG pipelines, vector search, agent workflows, and AI integrations
• Work with databases including SQL and NoSQL; optimize schemas, queries, and indexes
• Build async and event-driven systems using queues, workers, WebSockets, or streaming
• Develop frontend features using React, Next.js, TypeScript, HTML, and CSS
• Collaborate with Product, Design, QA, and Engineering teams to ship high-quality products
• Own features across the full lifecycle: design, build, deploy, monitor, and support

Skills required

• 4-6 years of software engineering experience
• Strong proficiency in Node.js, TypeScript, REST APIs, GraphQL, and backend architecture
• Good hands-on experience with React / Next.js and modern frontend development
• Strong understanding of databases, caching, async processing, and system design
• Experience integrating LLMs or building AI-powered product features
• Familiarity with RAG, vector databases, prompt engineering, AI observability, and latency optimization
• Experience with testing, performance optimization, security, and production deployments

Nice to Have

• Experience with real-time audio, STT/TTS, conversational AI, or multimodal AI
• Experience with Docker, Kubernetes, AWS/GCP/Azure, or CI/CD pipelines
• Open-source contributions or strong personal projects

What We Value

• Backend-first engineering mindset with full-stack execution ability
• Strong ownership and ability to drive projects independently
• Curiosity for AI and modern engineering practices
• Clear communication and comfort working in a fast-paced startup environment

Additional Information

Responsible for safeguarding sensitive company data against unauthorized access, use, or disclosure, and for reporting any suspected security incidents in line with the organization's ISMS (Information Security Management System) policies and procedures.