Abhishek Sinha

Bridging the gap between complex technology and measurable business ROI through innovation.
Passionate problem-solver with 21+ years of transforming complex business challenges into cutting-edge technology solutions. Specializing in enterprise architecture, cloud modernization, and AI-driven digital transformation across diverse industries.
Abhishek Sinha
Colwell & Salmon

About Me

I’m a PreSales Manager and enterprise solutions architect who thrives on turning complex problem spaces into clean, scalable systems. Over 21+ years, I’ve focused on modernization, AI-enabled transformation, and building assets that make adoption practical and measurable.

Recently, I led validation and enablement for CAST Imaging’s MCP server rollout—testing multi‑IDE integrations, crafting reusable demo assets, and driving customer confidence with prescriptive playbooks and ROI narratives. I anchor solution design in clear business outcomes and responsible AI usage.

As a Generative AI Leader (Google Cloud certified), I bring provider‑agnostic, business‑level expertise across gen AI fundamentals, cross‑cloud patterns and offerings, techniques to improve model output quality, and strategies for responsible, outcome‑led adoption—applied across AWS and multi‑cloud environments, including NyaySamwad/NyayRAG.

I complemented this with NVIDIA Deep Learning Institute’s "Building RAG Agents with LLMs" training—centered on practical deployment and advanced orchestration. Key outcomes: composing LLM systems via internal and external reasoning; designing dialog management that maintains state and coerces information into structured formats; using embedding models for efficient similarity queries for retrieval and dialog guardrailing; and implementing, modularizing, and evaluating a RAG agent that answers questions on research papers without fine‑tuning. This strengthened my hands‑on practice in GPU‑accelerated workflows and performance‑aware deployment.

I founded and architected NyaySamwad, built atop NyayRAG—a proprietary retrieval and orchestration layer. It applies dialog state management, structured reasoning, and embeddings‑based guardrails to deliver predictable answers, and is deployed on AWS serverless with a cloud‑agnostic architecture for portability and performance.

Beyond my professional work, I share learnings via my podcast and YouTube channel, and I enjoy experimenting in the kitchen or long‑distance running—both give me space to think through tough architecture problems.

21+
Years of Experience
100+
Solutions Delivered
25+
Technologies Mastered

Insights & Media

Articles & Thought Leadership
Architecture & Strategy

Exploring the intersection of business value and technical innovation. Deep dives into Enterprise Architecture, GenAI, and Digital Transformation.

Read Articles
Video Content
Tech Talks & Stories

Visual storytelling covering tech trends, architecture concepts, and personal journeys. Bridging technology with real-world experiences.

Watch Channel

Featured Content

LinkedIn Article

When Your AI Intern Lies to Your Face (The Hallucination Problem)

Understanding why AI models hallucinate and practical strategies like grounding and self-correction to manage it in professional workflows.
YouTube Video

Modernizing Legacy Apps with CAST Imaging MCP+LLMs

A deep dive into accelerating legacy application modernization using software intelligence and Large Language Models.
LinkedIn Article

Building Resilient Systems

Key patterns for high availability in distributed systems, discussing circuit breakers and eventual consistency.

Professional Experience

Manager Pre-Sales / Solutions Architect
CAST Software India
Oct 2019 — Present
  • Leading pre-sales solutions and technical demos, PoCs for CAST Imaging and Highlight, securing high-value clients.
  • Drive end‑to‑end pre‑sales for CAST Imaging MCP, covering discovery, demos/PoCs, and executive alignment.
  • Validate MCP integrations across Trae, AWS Q, and VS Code, ensuring performance and compatibility.
  • Accelerate RFPs and modernization by translating business needs into actionable use cases and migration artifacts.
  • Delivered technical talks and sessions to showcase CAST product capabilities.
  • Managed full pre-sales lifecycle including training, implementation, and PoCs.
  • Authored winning RFPs/proposals with compelling value propositions and ROI measurements.
  • Contributed to customer success and project management within the solutions team.
Solutions Architect
Happiest Minds Technologies
Sep 2014 — Sep 2019
  • Architected and delivered end-to-end technology solutions including cloud migrations, big data implementations, and greenfield application development.
  • Led cross-functional teams in designing scalable architectures that supported 10k+ users, while implementing DevOps practices that reduced deployment time by 25% and improved system reliability to 99.9% uptime.
Technical Leader
Atos India
May 2011 — Sep 2014

Spearheaded CRM migrations and modernization. Implemented lean methodologies improving efficiency by 45%.

Assistant Manager
Videocon Telecommunications
Dec 2010 — May 2011

Vendor management and business analysis for regulatory compliance and application delivery.

Application Consultant
IBM India
Dec 2007 — Dec 2010

Managed development and maintenance of Clarify and Siebel CRM applications.

Lead Analyst
Patni Computer Systems
Aug 2005 — Dec 2007

Team management and development for Clarify 11.5 applications.

Lead Analyst
Colwell and Salmon
Nov 2004 — Apr 2005

Application management and maintenance.

Endorsements

"Abhishek is a visionary architect who understands both the code and the business case. His leadership on the CAST rollout was exceptional."

— Senior VP, Enterprise Tech

"A rare combination of deep technical expertise and strategic thinking. He transformed our approach to cloud modernization."

— CTO, FinTech Startup

"His ability to bridge the gap between complex AI concepts and practical implementation is unmatched. A true asset to any team."

— Director of Engineering

Innovation & Leadership

NyaySamwad - Advanced Serverless AI Legal Chatbot

Proprietary NyayRAG System

Founded, architected and developed a scalable AI legal chatbot for Telegram and WhatsApp, evolving the core engine from a standard conversational model to a specialized Retrieval-Augmented Generation (RAG) system. This advanced solution is built to deliver highly accurate and context-aware legal information.

Key Technical Contributions:

Proprietary RAG System

Designed and implemented a custom RAG solution named NyayRAG, trained on a curated corpus of public legal documents to provide domain-specific and authoritative responses.

Advanced AI Integration

Developed the system on AWS Bedrock, leveraging its foundation models and capabilities to power the RAG and conversational AI components.

Agentic Framework Development

Currently working on transitioning the system towards an Agentic RAG framework, creating multi-step workflows to automate and streamline responses for complex legal use cases.

Serverless Architecture

Utilized AWS Lambda for business logic and Amazon DynamoDB for scalable chat data storage, ensuring high availability and cost-effective operations.

Impact: This project highlights deep expertise in business acumen, problem solving, solutions architecture, advanced generative AI development (RAG and Agentic systems), serverless computing, and the strategic use of AWS Bedrock to build sophisticated, domain-specific AI applications.

Skills & Expertise

Technology Architecture

Enterprise Architecture & TOGAF
Cloud Solutions (AWS & Azure)
Software Intelligence Platforms

Problem-Solving & Innovation

Digital Transformation Strategy
Legacy System Modernization
AI & Machine Learning Integration

Solution Delivery

Technical Presales & Solution Design
Cross-Industry Implementation
Performance Optimization

Education

Bachelor of Technology

Uttar Pradesh Technical University, Lucknow
November 2000 — June 2004
Majoring in Electronics and Telecommunication

Indian School Certificate

New Delhi, I.S.C., Prayagraj
April 1997 — May 1998
Majoring in Science, Mathematics, Hindi and English

Indian Council for Secondary Education

New Delhi, I.C.S.E., Prayagraj
April 1995 — May 1996
Majoring in Science, Mathematics, Social Studies, Hindi, English and Commerce

Certifications & Credentials

AI & Emerging Tech
Certified Big Data Developer
Wiley
Android Application Programming
Aptech Ltd
Cloud & Architecture
TOGAF 9.1 Enterprise Architect
The Open Group
AWS Certified Solutions Architect
Amazon Web Services
AWS Certified Developer – Associate
Amazon Web Services
Microsoft Certified: Azure Fundamentals
Microsoft
IBM
Certified SOA Practitioner
IBM
Systems & Management
Lean Foundation – Navigator
Atos
Siebel 8.0 Consultant
Oracle
OCA - Oracle Database 10g Associate
Oracle
I.E.L.T.S. (7.5 Score)
British Council
Spanish Language (Level 1)
Instituto Hispania

Let's Connect

I'm always open to discussing new projects, creative ideas, or opportunities to be part of an ambitious vision. Feel free to get in touch.

Location

Bangalore, India

Phone

+91-9818364419

Email

iam@theabhisheksinha.com