Riju Brata Chatterjee
Bengaluru,Karnataka
Summary
Strategic Cloud and Enterprise Architect with over 12 years of experience designing large-scale AWS and cloud-native platforms across financial services, cybersecurity, and global enterprise environments. Proven ability to translate business goals into scalable architecture strategies, lead multi-region cloud transformations, and optimize infrastructure economics. Trusted advisor to C-level stakeholders with a track record of delivering enterprise architectures that improve reliability, accelerate platform adoption, and generate over $1M in infrastructure savings.
Overview
13
13
years of professional experience
Work History
Principal Cloud Solutions Architect/Lead Devops Enablement Engineer
FICO
Bengaluru
10.2023 - Current
- Defined the architectural roadmap for a global AWS ecosystem supporting mission-critical financial platforms using EKS, Lambda, Bedrock RAG, and event-driven architectures processing over 6 million events daily with sub-second latency.
- Delivered over $1.3M in annual infrastructure savings by implementing a multi-account FinOps strategy using Crossplane and ArgoCD to automate Spot instance lifecycle management and resource rightsizing across global environments using Karpenter.
- Architected and deployed enterprise-grade AI agents using Amazon Bedrock AgentCore, enabling secure, multi-turn reasoning workflows with integrated Guardrails for PII masking and toxicity filtering.
- Eliminated 90% of security and compliance drift by implementing policy guardrails using Open Policy Agent (OPA) and Kyverno across enterprise EKS clusters aligned with CIS and NIST standards.
- Reduced enterprise search latency by 40% by designing a production-grade Bedrock GenAI framework using optimized vector embeddings in OpenSearch integrated with DynamoDB to support more than 6 million daily transactions.
- Strengthened global platform resiliency by architecting a multi-region disaster recovery architecture with an RTO under 15 minutes, ensuring zero data loss for event-driven workloads across highly available regions with 99.99% uptime.
- Accelerated code-to-production velocity by engineering an automated Pull Request orchestration workflow using GitHub Actions and Terraform; integrated Policy-as-Code (OPA) to trigger automated approvals and merges for low-risk infrastructure changes, reducing manual review bottlenecks while maintaining 100% compliance with security guardrails.
- Integrated DevSecOps into the CI/CD lifecycle, automating vulnerability scanning (Trivy/Snyk) and license compliance checks within GitHub Actions to shift security left.
- Standardized global deployment patterns by implementing ArgoCD ApplicationSets, enabling consistent GitOps-based management across multi-cluster and multi-region environments.
Senior Staff Architect, Infrastructure Delivery/Senior Software Engineer II - DevOps
Rakuten India
Bengaluru
02.2022 - 10.2023
- Influenced more than $2M in infrastructure investment decisions by partnering with CTO leadership to translate global expansion strategies into scalable AWS architecture roadmaps.
- Designed and deployed a High-Performance RAG (Retrieval-Augmented Generation) Architecture for e-commerce search, integrating Amazon OpenSearch as a vector store to enable semantic product discovery.
- Architected a Secure Generative AI Gateway on AWS, utilizing Amazon Bedrock and AWS Lambda to provide standardized, audited access to Foundation Models for enterprise-wide financial scoring applications.
- Engineered an "Agentic Compliance Auditor" using Amazon Bedrock Agents and Knowledge Bases, automating the cross-referencing of internal security docs with CIS/NIST benchmarks.
- Implemented AI Governance-as-Code by integrating Bedrock Guardrails with Open Policy Agent (OPA), ensuring PII redaction and toxicity filtering across all LLM-integrated microservices.
- Improved streaming data performance by 300% while reducing operational overhead by 40% by modernizing legacy Kafka infrastructure to AWS MSK, supporting high-throughput workloads processing over 2 million transactions per day.
- Migrated more than 100 on-premises servers to AWS using AWS MGN and DMS migration frameworks, achieving zero downtime and reducing infrastructure total cost of ownership by 25%.
- Accelerated enterprise cloud adoption by establishing an Architecture Review Board, mentoring over 20 senior engineers, and authoring organization-wide reference architectures used by more than 50 engineering teams.
- Automated blue-green and canary deployment strategies for mission-critical applications, significantly reducing the impact of failed releases and ensuring zero-downtime updates using Istio.
Senior Site Reliability Engineer
Palo Alto Networks
Bengaluru
02.2021 - 02.2022
- Reduced AWS infrastructure costs by $250K annually by optimizing EKS node groups, implementing automated scaling policies, and improving storage tiering strategies.
- Improved platform reliability to 99.99% availability by implementing observability frameworks using Prometheus, Grafana, and OpenTelemetry to monitor over 5,000 containers.
- Reduced mean time to recovery by 60% through centralized monitoring and automated alerting across distributed services.
- Accelerated deployment pipelines by redesigning CI/CD processes using Terraform and GitHub automation, reducing deployment cycles from two hours to fifteen minutes and enabling daily releases across 5,000+ containers.
- Automated 'Error Budget' tracking and SLI/SLO alerting within Prometheus, shifting the team culture toward data-driven reliability and incident response.
Senior Consultant
Mercedes-Benz Research & Development India
Bengaluru
04.2018 - 02.2021
- Accelerated development velocity and reduced operational costs by 40% by migrating more than 50 enterprise applications from legacy environments to containerized AWS EKS architectures.
- Eliminated major licensing costs and delivered $500K in annual savings by leading Oracle to Amazon Aurora database modernization initiatives.
- Reduced infrastructure provisioning timelines from weeks to hours by implementing Infrastructure as Code using Terraform and CloudFormation for more than 50 global workloads.
- Strengthened enterprise security posture by implementing IAM, Cognito, and centralized authentication policies, achieving full compliance with organizational standards for all internal and external users.
- Built automated 'Landing Zones' on AWS using Terraform and Control Tower, ensuring every new environment was pre-configured with centralized logging, VPC peering, and IAM guardrails.
Associate System Engineer
Tech Mahindra
Bengaluru
08.2013 - 04.2018
- Improved system uptime by 80% while managing cloud-hosted infrastructure supporting more than 2,000 global websites for Nestlé by automating Unix and DevOps operational workflows.
- Reduced manual operational effort by 50% through automation scripting and infrastructure orchestration.
Education
MBA - Information Technology
Dayanand Sagar University
Bengaluru01-2022
Bachelor of Computer Applications (BCA) -
West Bengal University of Technology
Durgapur01-2013
Skills
- AWS Cloud Architecture
- Enterprise Architecture Strategy
- Cloud Migration & Modernization
- Serverless & Event-Driven Architectures
- Kubernetes (EKS) & Platform Engineering
- Infrastructure as Code (Terraform, Crossplane)
- FinOps & Cloud Cost Optimization
- Security & Compliance Architecture (OPA, Kyverno, CIS/NIST)
- Containers: Kubernetes, Docker
- CI/CD & Automation: ArgoCD, GitHub Actions, Jenkins, Custom Terraform Providers
- Platform Engineering: Internal Developer Portals (Backstage), Service Mesh (Istio/Linkerd), Helm Charts
- Cloud Native Security: DevSecOps integration, Secret Management (HashiCorp Vault, AWS Secrets Manager)
- Observability & Reliability Engineering
Languages
English
Hindi
Bengali
Timeline
Principal Cloud Solutions Architect/Lead Devops Enablement Engineer
FICO
10.2023 - Current
Senior Staff Architect, Infrastructure Delivery/Senior Software Engineer II - DevOps
Rakuten India
02.2022 - 10.2023
Senior Site Reliability Engineer
Palo Alto Networks
02.2021 - 02.2022
Senior Consultant
Mercedes-Benz Research & Development India
04.2018 - 02.2021
Associate System Engineer
Tech Mahindra
08.2013 - 04.2018
MBA - Information Technology
Dayanand Sagar University
Bachelor of Computer Applications (BCA) -
West Bengal University of Technology