.NET Core Technical Architect

About TCS:

Join Tata Consultancy Services, Asia Pacific and be part of an organization committed to sustainable development for our future. TCS follows the Tata group philosophy of building sustainable businesses that are rooted in the community and demonstrate care for the environment. Our unique values position us to combine a purpose-driven worldview with digital innovation, collaborating with customers, communities and governments to lead and shape innovative solutions for a sustainable future. TCS has been carbon neutral in its operations across 11 countries, 12 delivery centres and 18 offices in Asia Pacific since 2022. This is only the initial stage in TCS’ journey as we strive to achieve long-term net zero emissions by 2030.

Corporate sustainability is embedded in our triple-bottom-line, focusing on people, the planet, and our purpose. Our offices are designed with eco-friendly features that significantly reduce our carbon footprint and enhance energy efficiency. We actively champion green initiatives, such as promoting paperless operations, implementing energy-efficient practices, and fostering employee engagement in sustainability efforts. When you become part of the TCS family, you will play an essential role dedicated to innovation, excellence, and crafting a brighter, greener future together. Join us and be a part of our mission to drive sustainability through technology and talent at Tata Consultancy Services, APAC today.

Role Overview

We are looking for a senior, hands-on Technical Architect to lead the design and delivery of a next-generation AI-powered self-service platform for a large enterprise client in the media and advertising sector. The platform enables users to move from a natural-language brief to a fully priced, bookable plan in minutes.

The solution is a containerised .NET Core + React application deployed on AWS EKS, integrated with the client's internal order management system (via async queue) and CRM (via custom APIs), augmented by a conversational AI agent hosted on GCP Vertex AI Agent Engine (Google ADK / LangGraph / Gemini).

The role blends enterprise application architecture, cloud-native engineering and Agentic AI design — ideal for a senior engineer-architect who has evolved from strong backend/full-stack roots into cloud + AI system design.

Key Responsibilities

• Own end-to-end architecture across UI (React/Node/TypeScript), API (.NET Core), integrations, cloud and AI layers
• Architect API-first, event-driven, cloud-native solutions on AWS EKS with enterprise CI/CD
• Design the Agentic AI layer on GCP Vertex AI (ADK / LangGraph / Gemini), aligned with client's data platform
• Define integration patterns: async messaging (AWS MQ) with OMS, and custom CRM APIs
• Enforce trust boundaries, entitlements, audit and multi-tenant isolation through the core API
• Design in-app identity + MFA for MVP, with a clean path to Auth0 / OIDC
• Guide teams on design, coding practices, evals, guardrails and delivery excellence
• Partner with Product Owner, Delivery Lead and client architecture / security stakeholders

Required Skills & Experience

• 12+ years total experience; 4+ years as Technical / Solution Architect
• Strong hands-on in .NET Core (mandatory) and React / Node / TypeScript
• Proven AWS EKS + VPC + AWS MQ architecture experience
• Hands-on Agentic AI experience with Vertex AI, Google ADK, LangGraph, Gemini
• Solid CRM (Salesforce or equivalent) + async integration experience
• Strong understanding of security, identity (MFA, OIDC/Auth0), audit and multi-tenant design
• Excellent design fundamentals — patterns, distributed systems, event-driven design
• Prior exposure to media, broadcast, ad-sales (OMS/TMS) or BFSI is a plus
• Strong communication, leadership and Agile delivery mindset

Preferred Certifications

AWS Solutions Architect · GCP Professional Cloud Architect · Generative AI Leader/Engineer