Software Engineer (SDE 1)
Chalo MobilityJul, 2021 - Apr, 20242 yr 9 months
ETA Prediction Model: Developed an XGBoost-based ETA prediction model using GPS and stop-arrival data, improving accuracy from 50% to 85% and increasing user engagement by 89%. Delivered actionable insights for operations team via the Operator App. (Python, Decision Trees, XGBoost, AWS SageMaker, hyperparameter tuning) Route Prediction Algorithm: Independently developed a real-time bus movement-based prediction algorithm, increasing live bus availability by 78% and streamlining field operations. GPS Ingestion Optimization: Replaced a legacy API-based ingestion pipeline with a RabbitMQ-based architecture, reducing latency by 200ms per packet, cutting infrastructure costs and enabling scalable onboarding of new agencies. Reports Orchestrator: Designed and scaled a reporting service into the Operator App using Java, Python, ELK and Postgres, automating scheduling workflows and reducing issue triage time by 40% through cross-functional collaboration. Migration & Observability: Led ELK stack upgrade (6.7 to 8.9) and mentored junior developers while integrating Log4j2 (distributed tracing) and Datadog to improve logging and monitoring across all microservices.