Tata Consultancy Services (TCS) is one of the world's largest global IT and consulting firms, delivering technology solutions across banking, healthcare, energy, telecom, government, and Fortune 100 enterprises. TCS partnered with BAAS to support several high-visibility engineering initiatives requiring deep technical expertise, scalable system design, and rapid delivery capability. BAAS provided full-stack development, cloud architecture, automation engineering, microservices modernization, and long-term system support across multiple enterprise programs under the TCS umbrella.
Project Overview
TCS required highly specialized engineering support to enhance and modernize mission-critical systems for its clients. BAAS was brought in to modernize legacy applications, build scalable microservices and backend systems, develop enterprise web components and APIs, improve automation, testing, and deployment pipelines, strengthen data processing and integration across platforms, and deliver consistent, high-quality engineering output for large-scale programs.
What We Delivered
1. Legacy System Modernization - Helped re-engineer large monolithic applications into microservices-based platforms. Migrated services to modern frameworks such as Java Spring Boot, Node.js, Python, and .NET Core. Improved maintainability, performance, and scalability across multiple client systems.
2. Full-Stack Application Development - Built enterprise-grade web applications with Angular, React, and modern UI/UX standards. Delivered backend services, data engines, security layers, and real-time features for multiple solutions. Ensured high availability and fault tolerance for applications serving global user bases.
3. Microservices Architecture & API Ecosystem - Designed modular microservices for authentication, billing, workflow management, data processing, and customer-facing features. Developed secure APIs enabling communication between new and legacy systems. Ensured compliance with enterprise SLAs and security requirements.
4. Cloud Architecture & DevOps Automation - Supported deployment and scaling on AWS, Azure, and Google Cloud environments. Implemented CI/CD pipelines, infrastructure-as-code, container orchestration (Docker/Kubernetes), and automated monitoring. Reduced deployment times and improved reliability across distributed teams.
5. Data Engineering & Integration - Built ETL pipelines to process large datasets across financial, operational, and customer domains. Improved data accuracy and availability through validation, transformation, and deduplication logic. Integrated data systems with analytics tools to support business intelligence and reporting.
6. Automated Testing & Quality Engineering - Created full testing suites: unit tests, integration tests, performance tests, and security tests. Built simulation environments to replicate high-volume enterprise workloads. Ensured consistent system quality across multiple releases and client programs.
Impact
Accelerated digital transformation initiatives for TCS clients - BAAS engineering enabled faster delivery of modernized systems and scalable architectures
Improved performance & reliability of enterprise applications - Legacy modernization and microservices transitioned systems into future-ready architectures
Reduced technical debt - Refactoring and cloud migration eliminated long-standing system bottlenecks
Higher engineering velocity & quality - Test automation, CI/CD, and strong architecture practices improved output across programs
