Rahul Sahay

CEO

Bengaluru, Karnataka, India18 yrs 4 mos experience
AI EnabledHighly Stable

Key Highlights

  • Expert in cloud-native architecture and AI-driven systems.
  • Led modernization initiatives for global enterprises.
  • Former Microsoft MVP with extensive teaching experience.
Stackforce AI infers this person is a Cloud and AI Architect specializing in enterprise-scale modernization and microservices.

Contact

LinkedIn

Skills

Core Skills

Cloud ComputingMicroservicesArtificial Intelligence (ai).net

Other Skills

Domain ArchitectureSoftware ArchitectureMachine LearningMicrosoft Azure Machine LearningSystem DesignAzureKubernetes.NET CoreMicroservices ArchitectureCloud SolutionsUser Interface DevelopmentSystem Performance EnhancementArchitectsPlatform ArchitectureReact.js

About

I help developers and architects design scalable systems and stay relevant in the age of Cloud and AI. As a Principal Architect at Datamatics, I’m leading enterprise-scale modernization and AI-driven transformation for global insurance giant BUPA — turning complex, legacy ecosystems into cloud-native, intelligent platforms that are agile, secure, and built to scale. With 18+ years in the industry, I work at the intersection of Architecture, Cloud, and Artificial Intelligence, defining blueprints for next-generation systems that are modular, API-first, and AI-ready. 🔹 Modernization & Architecture Driving large-scale Lift & Shift to Azure programs, transforming legacy applications into .NET Core–based microservices with Apigee, OAuth, Kubernetes, and Service Mesh at the core. Establishing API-first engineering patterns built on Clean Architecture, Domain-Driven Design (DDD), and OpenTelemetry to ensure observability, traceability, and operational excellence. Championing DevSecOps and CI/CD frameworks that enable rapid, secure, and reliable delivery across environments. 🔹 AI & Intelligent Automation Spearheading enterprise AI initiatives, including RAG-based chatbot platforms and Model Context Protocol (MCP)–driven systems for contextual, multi-modal intelligence. Leading development of Voice Assistant platforms combining NLU, LLMs, and cloud-native microservices to enable human-like enterprise interactions. Driving adoption of AI-assisted engineering — from code intelligence and documentation automation to semantic search and intelligent monitoring. 🔹 Engineering Leadership Architecting standardized patterns for microservices, observability, and zero-trust security. Promoting “API-first + AI-ready” principles to future-proof enterprise platforms. Mentoring teams to embrace cloud-native design, event-driven architecture, and measurable modernization outcomes. 🧠 Beyond work Former Microsoft MVP (7× Honoree) IIT Madras (Machine Learning) Udemy Instructor with 47K+ learners, teaching Cloud, Microservices, and AI system design 💡 My belief: Great systems — and great engineers — are built on strong fundamentals and clear mental models. 👉 Follow me if you’re interested in cloud-native architecture, microservices, AI-first engineering, or learning how real-world enterprise systems are designed and evolved.

Experience

Datamatics

Principal Architect

Sep 2025 – Present · 7 mos · Bangalore Urban · Hybrid

  • Leading enterprise-wide cloud modernization and AI transformation initiatives — architecting scalable, secure, and intelligent platforms that redefine how legacy systems evolve.
  • ✅ Key Contributions:
  • Defined the modern microservices and API-first architecture using .NET Core, Azure, Kubernetes, and Service Mesh for next-gen enterprise platforms.
  • Spearheaded Lift & Shift to Azure initiatives with focus on clean architecture, observability (OpenTelemetry), and zero-trust security.
  • Established an AI engineering foundation integrating Generative AI, RAG (Retrieval Augmented Generation), and MCP (Model Context Protocol) to power intelligent assistants and automated workflows.
  • Designed and implemented an enterprise Chatbot and Voice Assistant Bot, enabling contextual, conversational, and voice-driven interactions across systems.
  • Championed engineering excellence through Clean Architecture, DDD, and DevSecOps pipelines, ensuring standardization, agility, and audit-ready governance.
  • Collaborating with cross-functional teams to drive AI-first, cloud-native design patterns across all modernization initiatives.
Domain ArchitectureSoftware ArchitectureMachine LearningArtificial Intelligence (AI)Microsoft Azure Machine LearningSystem Design+2

Ibm

Architect | Microservices Architecture | Cloud Solutions | UI Development

Jun 2024 – Oct 2025 · 1 yr 4 mos · Bengaluru, Karnataka, India · Hybrid

  • Spearheaded the design and implementation of a new UI platform that transformed user interactions, resulting in a significant boost in user satisfaction metrics across applications.
  • Migrated legacy systems to modern architectures, achieving a remarkable 25% reduction in system downtime while enhancing overall maintainability for seamless operation.
  • Championed the adoption of microservices architecture which enabled a 40% increase in scalability to accommodate growing user demands without compromising performance.
  • Collaborated with cross-functional teams to ensure timely delivery of projects while maintaining high standards of quality and performance throughout the development lifecycle.
  • Skills: Microservices Architecture, Cloud Solutions, User Interface Development, System Performance Enhancement.
Microservices ArchitectureCloud SolutionsUser Interface DevelopmentSystem Performance EnhancementMicroservicesCloud Computing

Publicis sapient

Architect | Microservices Architecture | AWS | AI | UI Development

Dec 2020 – Jun 2024 · 3 yrs 6 mos · Bangalore Urban, Karnataka, India

  • Engineered a centralized data hub at Nationwide, enhancing customer care representatives' access to customer information for improved service delivery.
  • Collaborated with Nationwide to develop critical systems supporting customer journeys, including account opening and loan applications.
  • Implemented a system to assess eligibility criteria for issuing new cards, ensuring compliance with banking regulations.
  • Successfully engineered a centralized data hub, improving customer service efficiency by 30%, empowering care reps with unified customer insights.
  • Developed a regulatory-compliant card eligibility system, reducing manual review effort by 40%.
  • Seamlessly integrated multiple data sources, boosting data accessibility and accelerating decision-making across customer journeys (account opening, loans, service).
  • Championed Agile best practices, mentoring team members and fostering a high-performance delivery culture.
ArchitectsPlatform ArchitectureMicroservicesReact.js.NET CoreArtificial Intelligence (AI)+3

Kongsberg digital

Senior Software Development Engineer | Microservices | .Net Core | Angular | Azure

May 2017 – Dec 2020 · 3 yrs 7 mos · Bengaluru Area, India

  • Spearheaded the design and development of a cutting-edge client onboarding platform for the energy sector using Angular and .NET Core technologies.
  • Architected and implemented a microservices-based framework to promote scalability and maintainability.
  • Collaborated with the Architect to develop innovative design strategies and translate them into actionable user stories for seamless integration.
ArchitectsArchitectural DevelopmentDockerKubernetesAngular.NET Core+3

Nasdaq

Lead Application Developer | .Net Core | Angular | Azure

Feb 2016 – Apr 2017 · 1 yr 2 mos · Bengaluru Area, India

  • Developed new APIs to enhance business functionality and address client issues listed with Nasdaq.
  • Implemented cutting-edge technologies like MVC, C#, WEB-API, and JavaScript Frameworks to maintain and create new features.
  • Utilized Agile Methodology to streamline development processes and ensure efficient project delivery.
Angular.NET CoreASP.NET Web APISpring Boot.NET

Dell technologies

Lead Application Developer | ASP.Net MVC | Web API | .Net Core

Jun 2013 – Feb 2016 · 2 yrs 8 mos · Bangaon Area, India

  • Led a team of 7 developers in the implementation of ERP solutions, integrating new projects with existing business modules.
  • Developed cutting-edge technologies including Spring MVC, Hibernate, ASP.NET MVC, and Angular for both client and server-side applications.
  • Architected frameworks for entire solutions, ensuring scalability and efficiency in project development.
Architectural DevelopmentMicroservices.NET CoreASP.NET MVCASP.NET Web API.NET

Mindtree

Developer | VB.Net | .Net Framework | WCF

Oct 2011 – May 2013 · 1 yr 7 mos

  • Developed an eCommerce App for a contest using .Net technology, showcasing the project with a hosted prototype and demo.
  • Currently working on the AMEX project, tracking global credit card transactions in the ISP system.
  • Utilized Visual Studio 2010, SQL Server 2008, Entity Framework, Jquery, Ajax, and Java-Scripts for project development.
C#VB.net.Net frameworkMicrosoft SQL Server.NET

Tata consultancy services

Software Developer | Java | .Net

Jan 2008 – Nov 2011 · 3 yrs 10 mos · Mumbai Area, India

  • Led the Development team in delivering end-to-end solutions to three banking clients, including Central Bank of India, Allahabad Bank, and Bank of Maharashtra.
  • Designed and implemented a new website for State Bank of India's SME module, enhancing user experience and functionality.
  • Acted as the first point of contact for technical issues, feasibility assessments, and critical requests from clients, ensuring timely and effective resolutions.
.NETWCFVisual Basic .NET (VB.NET)C#

Infinity - training

Developer

Oct 2007 – Feb 2008 · 4 mos · Ranchi Area, India

  • Developed Student registration system to track existing and enroll new students.
  • Implemented automated notification system for timely communication with students.
  • Trained in .NET and ORACLE, learning coding standards and problem-solving approach.
.NETJavaOracle Database

Education

BLDEA COLLEGE OF ENGG AND TECHNOLOGY

Bachelor of Engineering (B.E.) — Information Technology

Jan 2003 – Jan 2007

DAV public school

XIIth STD — Science

Jan 2000 – Jan 2002

Saraswati Vidya mandir

Xth STD — Science

Jan 1999 – Jan 2000

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