Gaurav Khandelwal
Back End Developer @LotusFlare
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WORK HISTORY
Back End Developer @LotusFlare
IN
Designed and implemented WaitFor and NotifyTo orchestration states to enable event-driven workflows within the Orchestration Engine, supporting inter-execution communication and asynchronous coordination. Utilised Cassandra and Redis to persist events and coordinate event flow.Implemented a distributed execution scheduling system in Lua, leveraging Redis for low-latency time-based scheduling and Cassandra for durable state persistence. The system handles configurable execution delays with TTL management and input validation, achieving high throughput while ensuring data durability across service restarts.Designed and implemented a termination mechanism to halt workflows at any point in a distributed microservice architecture. Leveraged Cassandra to retrieve active reservations and Redis for immediate cleanup of pending executions, ensuring consistent system state.Led a data compression optimization initiative for Cassandra-persisted data, utilizing Prometheus for real-time metric-driven benchmarking of Snappy and ZSTD algorithms. Successfully transitioned data storage to ZSTD based on empirical data, achieving ∼ 25% reduction in data size and significantly improving storage efficiency and data transfer speeds between distributed systems. Developed and maintained critical APIs and their Swagger YAML specifications for a global orchestration service, built on OpenResty. These APIs powered the LotusFlare DNO Cloud product, supporting 10+ telecom operators worldwide. Ensured correctness and reliability through rigorous local and Postman-based integration testing.
EDUCATION
Swami Keshwanand Inst. Of Tech. Mgt. & Gramothan,Jaipur
Bachelor of Technology - BTech, Computer Software Engineering
Keshav Public Senior Secondary School Jaipur
12 , Mathematics and Computer Science
Indian Institute Of Information Technology Allahabad
Master of Technology - MTech, Software Engineer
ABOUT GAURAV KHANDELWAL
Backend Engineer with nearly 3 years of experience designing scalable, distributed backend systems. Skilled in Lua, Python, C++, Redis, Cassandra, and Kafka, with expertise in event-driven architectures and microservices.Focused on optimizing performance and building reliable APIs that serve millions of users. Currently contributing to the LotusFlare DNO Cloud platform, delivering features and workflow automation for 10+ telecom operators worldwide.Feel free to connect to discuss scalable backend solutions, distributed systems, or tech innovation.
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