Exotel - Member of Technical Staff II - Billing Platform

Tech @ Exotel : Exotel Engineering builds fault-tolerant, scalable, and real-time distributed systems. Our tech stack includes Golang, Java, PHP, MySQL, Apache Kafka, Kubernetes, Beanstalkd, and Elasticsearch. We follow best practices in clean abstractions, loosely coupled services, and DevOps-driven operations. We strongly believe in "you build it, you own it." Team IPO Readiness : The IPO Readiness pod owns Exotel's billing and revenue platform - real-time call/SMS billing, balance deduction, invoicing, payment processing, and credit control. The platform handles approximately 200k transactions per minute across Voice, Messaging, and other Exotel solutions. Role : Member of Technical Staff II: As an MTS-II on IPO Readiness, you will design, build, and integrate components across the billing platform and support IPO-readiness initiatives (controls, monitoring, automation). You will work on feature delivery, production support, and cross-system integrations with ERP (Business Central), payment gateways, and the Zuora migration path. Key Responsibilities: - Develop and maintain microservices and batch jobs in Golang, Java, or PHP. - Build and extend REST APIs and Kafka consumers/producers for billing events, sync flows, and fallback pipelines. Must-Have Skills: - Strong computer science fundamentals (data structures, algorithms). - Proficiency in at least one of: Golang (preferred), Java, or PHP. - Experience building scalable distributed systems and event-driven architectures. - Hands-on MySQL - schema design, query tuning, replication awareness. - Experience with Apache Kafka and asynchronous processing (consumers, lag, fallback/retry patterns). - Kubernetes basics - pods, deployments, namespaces, ArgoCD or equivalent GitOps. - DevOps mindset - you build it, you own it; comfortable with logs, metrics, and incident triage. Good-to-Have Skills : - Exposure to billing, invoicing, payments, or ERP integrations (Zuora, Business Central, Razorpay). - Experience with Beanstalkd, Jenkins, Prometheus/Grafana/Loki. - Scripting in Python for ops automation and report generation. - Familiarity with ITGC/SOX-style controls and audit documentation. Experience : - 2 - 5 years. Location : - Bangalore (On-site).