Backend - Senior Software Engineer About US Paytm is India s largest digital payments and financial services platform leading the mobile QR revolution We power millions of businesses and individuals and we re building scalable resilient systems to serve half a billion Indians and beyond Here at Paytm technology isn t just about keeping up it s about building the future We believe the next generation of engineers must not only scale systems to billions but also leverage AI and GPT tools to accelerate innovation About the role 1 You will design build scale code and optimize systems that operate at massive transaction volumes 120 million transactions per day 2 You ll go deep into systems thinking microservices caching messaging and scalable data architectures 3 You ll also be encouraged to actively use AI tools like GPT and others in your development workflow to code faster smarter and better What We re Looking For 1 3 to 6 years of backend development experience in Java 2 Real-world experience with high-TPS large-scale systems or a burning desire to master them 3 Hands-on with Kafka Redis RDBMS and distributed microservices architectures 4 Exposure to AWS Cloud Infrastructure and cloud-native patterns 5 Passion for scaling performance tuning and system optimizations 6 Someone who loves to experiment with AI tools like GPT Copilot OpenHands for code generation optimization or workflow improvement 7 You love writing clean productive production-ready code but you are even more obsessed with system performance uptime and user impact Preferred Qualifications Bachelor s Master s Degree in Computer Science or equivalent Skills that Will Help You Succeed 1 Languages Java Node js 2 Databases Postgres MySQL CASSANDRA 3 Messaging Systems Kafka RabbitMQ 4 Caching Redis Aerospike5 Platforms AWS Microservices 4 Monitoring Elastic Search Kibana Graphana 5 Obsessed with low latency high throughput systems 6 Fluent with AI-powered coding assistance a big plus Why You Should Join Us 1 You ll build at true scale systems handling millions of transactions per day sub-100ms latencies and five 9s availability 2 You ll work in a team that is serious about engineering no fluff just deep tech deep impact 3 You ll be encouraged to use AI tools daily coding debugging testing and even invent new ways of using AI in software development 4 You ll work alongside engineers who love tech deeply and where innovation is the default expectation 5 Paytm offers you a career not just a job to become a next-gen tech leader Compensation If you are the right fit we believe in creating wealth for you With enviable 500 mn registered users 21 mn merchants and depth of data in our ecosystem we are in a unique position to democratize credit for deserving consumers merchants - and we are committed to it India s largest digital lending story is brewing here It is your opportunity to be a part of the story