Rahul Mantri

Senior Fullstack Developer specializing in Python, TypeScript, AI Voice Agents, and scalable SaaS platforms. Experienced in building production-grade conversational AI systems, real-time voice pipelines, multi-tenant backends, LLM integrations, cloud infrastructure, and full-stack applications. Strong experience with FastAPI, Next.js, PostgreSQL, Redis, Pipecat, AWS, and Terraform.

Senior Fullstack Developer at Slaab AI (2024-05 – Present)

• Architected and built BotSlaab, an AI-powered voice and chat agent platform using Pipecat, integrating multiple TTS/STT providers including Google Cloud, ElevenLabs, Cartesia, Sarvam, and Chirp.
• Developed real-time WebRTC and WebSocket voice pipelines, VAD systems, and multi-model LLM orchestration for production conversational AI applications.
• Built AI agent workflows using Mastra, PostgreSQL, and pgvector, enabling context-aware multi-turn conversations and knowledge retrieval.
• Integrated payment gateways including Stripe, Telr, and UPI, implementing transaction workflows and secure webhook processing.
• Led Web3 token projects under @Slaab AI, including smart contract deployment and on-chain application integrations.

Flutter Developer at OneKnotOne Technologies (2023-12 – 2024-04)

• Developed and maintained a Flutter-based e-commerce mobile application using Firebase, implementing authentication, real-time data synchronization, and payment gateway integrations for Android and iOS.

SAP Trainee at Code Unnati (2022-08 – 2023-04)

• Participated in SAP’s Industry 4.0 hands-on learning program with practical exposure to enterprise systems and industrial automation workflows.

Bachelor of Computer Science in B.Tech in CSE – Parul University (2020 – 2024)

Gujarat HSC – Agasti Education, Kosamba (2019 – 2020)

Gujarat SSC – Good Shepherd English School, Kim (2017 – 2018)