Arun Hosamani

Senior Backend Engineer | Node.js | TypeScript | Microservices | AWS | Distributed Systems | Redis | System Design | 8 Years

At LTIMindtree, I design and build backend services supporting a global QSR platform deployed across 200+ locations.

Key contributions include

• Architected a serverless recommendation engine processing 5,000+ daily requests with 100–200 ms response times.
• Built a distributed cache synchronization service using MySQL, Redis, and SQS, reducing downstream API latency to 50–100 ms.
• Developed a centralized DLQ monitoring platform that reduced failure detection from 15 minutes to under 3 minutes, improving production observability and operational reliability.
• Designed scalable event-driven backend services using AWS serverless technologies and asynchronous messaging patterns.

Previously at Techspian, I developed a contract management platform serving 40+ agencies, improving search performance through DynamoDB Streams and Elasticsearch while enhancing backend engineering standards and observability.

Engineering Focus

• Distributed Systems
• System Design
• Performance Optimization
• Scalability
• Reliability Engineering
• Caching Strategies
• Event-Driven Architectures
• Production Systems
• Backend Platform Development