Divyansh Sikarwar Email & Phone Number

Gurugram, Hr, In

Noida, Uttar Pradesh, India

Working closely with a team of experienced developers to Learn, Develop, Monitor, and Maintain the company's backend infrastructure.• Implemented a cost-efficient notification service algorithm in the central engineering team, optimising attachment consolidation, which improved user engagement and reduced email costs by ∼25%.• Designed a granular view-level string permission system in Django, boosting security and access control. Reduced unauthorised access incidents by 30%, improving overall data protection and compliance.• Integrated Redis across microservices for caching, task queuing, and scheduling, reducing average API response time by ∼2.5 seconds and improving scalability.• Optimised logging system in a multi-process Django service, managing 1GB+ of logs per day across 15+ Gunicorn processes, by integrating logrotate service and cron to eliminate concurrency issues.Awards & Recognitions : Rising Star Award | Quarter 2 (Apr - Jun 2024).

Mumbai, Maharashtra, India

• Engineered and maintained the SmartBooks backend in Go, generating over 15L monthly revenue. Overcame challenges using Redis cache optimisations, Cron Jobs, and Elasticsearch.• Improved Redis Cluster latency from ∼2.00 ms to peaks of ∼400 μs through optimising recommendation microservice APIs by leveraging concurrent data retrieval from the primary database.• Streamlined and Engineered RabbitMQ Workers to Merge and Split Emails Between Email Service Providers and internal services, reducing costs by over 50,000 Rs per day.• Wrote the recommendation algorithm impacting more than 2 million active paid users for Testbook’s flagship in-house book e-commerce system named SmartBook.• Architected and orchestrated high-throughput scalable APIs, managing over 10k API requests per second on average, ensuring peak performance and reliability.• Upgraded the primary API service to cut virtual machine group startup time by ∼10 seconds, leveraging go-routines and channels for concurrent processes.• Designed scalable back-end applications using Golang and Python that served more than 100K concurrent users without major downtimes.

Mumbai, Maharashtra, India

• Built and maintained web applications using various Full-Stack technologies.• Worked with backend technologies such as Node.js to build and integrate APIs and database systems.• Utilized version control systems such as Git for efficient collaboration and code management.