Ranajit Das
Enterprise Solutions Architect @Tata Consultancy Services
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WORK HISTORY
Enterprise Solutions Architect @Tata Consultancy Services
Nottingham, GB
As a Techno-Functional Enterprise Architect, I specialize in AWS cloud architecture, enterprise transformation, cloud & application security, performance engineering, and data migration strategies. Currently serving as Technical Architect for TCS BaNCS Life & Pensions, I lead five global implementations across cloud and on-premise deployments, combining solution design expertise with strategic engagement at the CTO level.Core Expertise:Cloud & Security: AWS architecture, deployment strategy, orchestration, cloud & application security, multi-tier capacity planning.AI & Innovation: Generative AI (RAG), automation-driven modernization, AI-enabled migration accelerators.Data Migration & Cutover: Legacy-to-cloud migrations using Talend & custom AI tools, with large-scale mapping, masking, and cutover execution.Performance Engineering: Optimization of RDBMS (Oracle, PostgreSQL), NoSQL (MongoDB, DynamoDB), and Core Java tuning (heap, GC, threads).Integration & Applications: Microservices, API modeling, Apache Kafka, CI/CD pipelines (Jenkins, Docker, ECS, EKS).Development & Automation: Hands-on in Java, Python, Node.js, PL/SQL; automation with JMeter, LoadRunner, Selenium, Cucumber, TestNG, JUnit.Success HighlightsLed the digital transformation of Now Pensions, migrating from a legacy platform to TCS BaNCS Cloud, ensuring scalability, modernization, and regulatory compliance.Designed a complete AWS architecture leveraging Generative AI RAG, setting benchmarks for digital innovation.Executed large-scale data migration strategies with Talend and AI tools, enabling secure and timely cutovers.Delivered performance gains across databases, middleware, and applications, improving throughput and reducing latency.Managed five concurrent TCS BaNCS global implementations with zero critical outages, driving enterprise transformation and delivery excellence.
EDUCATION
A.K Ghosh Memorial
Secondary, Science
Jodhpur Park Boys High School
Higher Secondary, Science
West Bengal University of Technology, Kolkata
Bachelor of Technology (B.Tech.), Electrical, Electronics and Communications Engineering
SKILLS
ABOUT RANAJIT DAS
Enterprise Architect with deep techno-functional expertise in AWS cloud, AI, application/cloud security, and performance engineering.Hands-on leader driving five global TCS BaNCS Life & Pensions implementations, specializing in Group Pensions (HK, UK, Ireland).Proven data migration strategist using Talend and AI tools, with strong cutover execution experience in large-scale transformations.Skilled in cloud-native architectures, Generative AI (RAG), microservices, and CI/CD with hands-on coding in Java, Python, Node.js, PL/SQL.Trusted advisor to CTOs and senior stakeholders, bridging strategic vision with technical execution to deliver secure, scalable, and future-ready architectures.
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