Led a cross-functional backend team delivering production-grade microservices and real-time APIs, scaling to thousands of active users with 99.99% uptime. Architected AI integrations using Vertex AI and OpenAI APIs with secure API key management, message routing, and feedback-loop accuracy monitoring, improving automated support resolution by 40%. Built high-availability data ingestion pipelines (Airflow, Spark, Pub/Sub, BigQuery), reducing data freshness lag by 65% and cutting data loss with DLQs and automatic replay. Reduced backend latency by 45% through asynchronous FastAPI patterns, Redis caching, and query tuning. Productionized RAG chat systems with Pinecone embeddings and vector search, boosting assistant adoption. Implemented DevOps automation (Docker, Kubernetes, GitHub Actions) enabling 3x faster deployments with zero-downtime rollouts. Mentored engineers and ensured high-quality releases with testing and observability.

Full Stack Engineer at Cognizant

January 1, 2020 - January 1, 2023

Developed a national UAE rental exchange platform using Python + React + GIS, delivering real-time property availability, rental history, and pricing across major cities. Engineered geospatial features (OpenLayers, Mapbox, PostGIS) with spatial indexing for near-instant interactive maps. Built geospatial ETL pipelines; integrated AI/LLM services (OpenAI) for market analytics, automated pricing estimation, and property classification. Launched intelligent rental chatbot increasing self-service adoption; utilized Pinecone for vector search to match neighborhoods and predict rental trends. Implemented secure APIs with OAuth2; optimized backend with Redis caching, async I/O, PostGIS indexing; Built CI/CD pipelines; Migrated spatial workloads to managed cloud.

Software Engineer at Capgemini

January 1, 2017 - January 1, 2020

Implemented OCPP 1.6J communication services in Node.js for charging stations; developed EMS/CMS microservices; implemented secure payments and PCI tokenization; built real-time reporting and alerting; optimized Node.js performance with event-driven streams, caching, and async execution. Established microservices DevOps practices with Docker, container-based deployments, and environment automation. Collaborated with hardware teams and external CPO/OEM partners to validate OCPP compliance and charger compatibility. Created fault-tolerant reporting & alerting with anomaly detection and escalation workflows; contributed to frontend development using React with real-time dashboards.

Backend Developer at NTT DATA

January 1, 2014 - January 1, 2017

Developed RESTful APIs using Node.js + Express.js and Python (Django/FastAPI) to support authentication, billing, and reporting across multiple web products. Built and optimized PostgreSQL/MySQL schemas, indexes, and stored routines to improve query performance and data integrity. Implemented JWT-based auth, role permissions, and secure API request flows. Integrated third-party APIs and created reusable service modules. Developed asynchronous background jobs (Celery/Redis and BullMQ/Kafka) to improve responsiveness. Wrote unit and integration tests and contributed to CI/CD pipelines.