Oil & Gas Company Modernizes
MVaR Platform with AWS

Client

A multinational oil & gas company running a legacy Market Value at Risk (MVaR) platform built on aging Java and ASP.NET technologies, facing performance and agility constraints.

Challenges

High technical debt from a tightly coupled monolithic system.
Long development and release cycles.
Low stability and time‑consuming troubleshooting.
Heavy reliance on support teams for reporting.
Outdated technology stack with security risks.

Solution

Re‑architected the legacy monolith into a cloud‑native .NET microservices platform on AWS
Containerized services and deployed them on Amazon ECS, enabling elastic scaling and modular deployments
Designed independent layers—web, API, database, notifications, queuing—for flexibility and faster change cycles
Used separate Amazon ECS clusters for UI/API vs ingestion/processing workloads
Implemented AWS Application Load Balancer for smart routing and high availability
Integrated Microsoft Entra ID (Azure AD)-based SSO and strengthened security with AWS‑aligned best practices
Enabled real‑time observability via Amazon CloudWatch and centralized logging.

Outcomes Delivered

40% improvement in operational efficiency
80% improvement in runtime performance
80% reduction in technical debt
60% faster time‑to‑market
65% reduction in dev‑test‑deploy cycle time

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Contributors

Dhiraj Thakur is a Solutions Architect with Amazon Web Services, specializing in Generative AI and data analytics domains. He works with AWS customers and partners to architect and implement scalable analytics platforms and AI-driven solutions. With deep expertise in Generative AI services and implementation, end-to-end machine learning implementation, and cloud-native data architectures, he helps organizations harness the power of GenAI and analytics to drive business transformation. He can be reached via LinkedIn

Lakshmi Prabhakar - A solution-driven technology engineer focused on solving real-time client problems and delivering impactful transformation.

Shivanand Chidanand Tori - Cloud‑focused Digital Solution Specialist translating technology into business value and measurable impact.