Senior Backend Engineer

Job Description We are seeking an exceptional senior backend engineer to architect and build the robust, scalable backend systems that power our AI agents for enterprises. You'll work directly with our CTO and engineering team to design high-performance, mission-critical backend infrastructure that handles real-time financial data processing, regulatory compliance, and seamless integration with banking systems. This role is for a backend specialist who thrives on solving complex technical challenges, from designing asynchronous processing systems and optimising database performance to building resilient microservices that can handle enterprise-scale workloads. If you're passionate about backend engineering, love working with cutting-edge technologies, and want to build systems that directly impact how financial institutions operate, this is the perfect opportunity for you. Responsibilities: - Design and implement scalable, fault-tolerant backend architectures for high-volume data processing. - Build secure and robust RESTful APIs and GraphQL endpoints. - Develop high-performance asynchronous systems using Python (asyncio) and Node.js, integrated with message queues. - Architect efficient database schemas (SQL/NoSQL) and implement caching strategies for low-latency response times. - Build WebSocket-based systems for real-time AI agent interactions. - Create seamless integrations with banking APIs, payment gateways, and other third-party services. - Write clean, maintainable, well-tested code with comprehensive unit and integration tests. - Implement logging, monitoring, and alerting systems for production environments. Requirements: - 3+ years of backend experience in production-grade systems. - Strong experience with Python, including deep knowledge of asyncio, OOP, and design patterns. - Familiarity with security protocols (OAuth, JWT) or financial compliance. - Knowledge of ETL pipelines or large-scale data processing. - Strong experience with Node.js and event-driven programming. - Hands-on experience with FastAPI and Express.js . - Advanced knowledge of PostgreSQL / MySQL (query optimisation, tuning). - Working knowledge of NoSQL (Elasticsearch, Redis). - Experience designing and deploying microservices-based systems. - Solid understanding of async processing with message queues (RabbitMQ, Kafka, SQS). - Proficiency with any cloud services and containerisation (Docker, Kubernetes). Company Summary Timepay.ai is an enterprise Voice AI Agent platform that makes customer conversations intelligent, scalable, and human-like. Our flagship Vox TTS engine powers millions of voice interactions with sub-100ms latency, 15+ emotional tones, and native support for 10+ Indic languages with code-mixing. We help enterprises across BFSI, Insurance, Healthcare, and E-commerce automate customer support, collections, sales, and appointment scheduling without sacrificing the human touch. Built in India. Trusted by leading enterprises. Powering millions of conversations daily. We're on a mission to give every business the power of human-like voice AI. From our autonomous voice agents to the flagship Vox TTS engine, we're making conversations intelligent, scalable, and accessible. Timepay.ai was born from a simple observation: businesses spend billions on customer communication, yet most interactions still feel robotic and frustrating. We asked ourselves what if every business could have voice AI that truly understands, empathises, and resolves? What if a small lending company in India could have the same quality voice automation as a Fortune 500 company? That question led us to build Vox, our flagship TTS engine that sounds indistinguishable from humans. With emotional intelligence, native Indic language support, and sub-100ms latency, Vox powers millions of conversations daily. Today, we're helping businesses across banking, insurance, healthcare, and e-commerce transform their customer communication. But we're just getting started. To democratize voice AI technology, making human-like conversational experiences accessible to businesses of every size, in every language. A world where every customer interaction is intelligent, empathetic, and effortless, where voice AI handles the routine so humans can focus on what matters.

Required Skills ['Node.js', 'Python', 'Agentic AI', 'Generative AI', 'MySQL', 'NoSQL', 'PostgreSQL'] Additional Information Source recruiter: Siva Prasad Source recruiter designation: Talent Acquisition Associate Company tagline: We build intelligent voice agents and tts models for enterprises Employee count: 1 Company founded: 2024 Website: https://timepay.ai/ LinkedIn: https://www.linkedin.com/company/timepay\-ai/about/ Instahyre score: NA Strong match: NA Accept outstation: false Company tagline: We build intelligent voice agents and tts models for enterprises Logo: https://media.instahyre.com/images/profile/base/employer/54099/59959841ba/timepay\_ai\_logo.webp