Gaurav
Jain
Solution Architect & Technology Leader | Publicis Sapient
Who I am
Technology leader and Solution Architect with 16+ years of experience designing and delivering scalable enterprise platforms for global brands. I specialise in Java-based distributed systems, microservices architecture, and data engineering — turning complex business problems into resilient, cloud-native solutions.
My work spans Java/Spring Boot microservices, Spark/Scala data pipelines, ML platforms, and production systems on GCP — paired with modern DevOps practices using Docker, Kubernetes, and infrastructure-as-code. I lead cross-functional engineering teams, define technical strategy, and mentor senior engineers.
Recently certified as a Google Cloud Generative AI Leader, I am now applying Agentic AI architectures, RAG-based workflows, and LLM design patterns to unlock next-generation enterprise capabilities.
Years in Engineering
Years at Publicis Sapient
Google Cloud Certs
Based in London
Career Timeline
Credentials
Professional Cloud Developer
Technical Arsenal
Core Engineering
Data Engineering
Cloud & DevOps
AI / GenAI
Selected Work
Data Platform & Spark Pipelines
Architected large-scale data engineering platform processing millions of daily events. Built Spark/Scala pipelines for real-time analytics, reducing batch processing time by 60%. Designed data lake on GCP with partitioned storage and automated data quality checks.
Machine Learning Platform
Designed and delivered a self-service ML platform enabling data scientists to train, deploy, and monitor models without DevOps dependency. Implemented real-time event streaming for fraud detection use cases, reducing infrastructure costs by 40%.
Microservices Migration & Architecture
Led technology strategy to decompose a monolithic e-commerce platform into domain-driven microservices. Designed Spring Boot architecture serving 10M+ users with OAuth 2.0 security layer. Reduced deployment cycles from weeks to hours.
Enterprise SSO & Identity Platform
Designed and implemented enterprise-wide Single Sign-On using OKTA as identity provider, unifying authentication across 15+ applications. Reduced login friction and cut support tickets by 30%.
International Money Transfer Platform
Developed core modules for ACH, Direct to Bank, and Money In Minutes products — high-throughput financial transaction processing serving millions of global transfers.
RAG Knowledge Engine
Personal project: Agentic RAG pipeline that ingests enterprise documents, builds vector embeddings, and serves context-aware answers via a conversational interface.