AI & Generative AI
LLMs, RAG, AI agents, personal memory systems, embeddings, vector search and practical applications of Generative AI.
TECHNOLOGIST · ARCHITECT · EXPLORER
A lifetime in technology.
Still exploring.
Exploring technology through architecture, artificial intelligence, data platforms and digital systems — drawing on more than three decades of experience while continuing to learn, experiment, build and write.
Years in technology
Leadership scale · up to 700
Industry experience
01 / ABOUT
A long technology journey shaped by building products, platforms, teams and ideas across multiple industries.
Let’s exchange ideasI have spent more than three decades in technology across engineering, product strategy, enterprise architecture, IT operations and leadership. My experience spans organizations and domains including healthcare, banking and financial services, consumer products, utilities, smart cities and digital platforms.
Today, I continue to explore AI, data, software architecture and personal technology projects. VengaManga is where I bring together my technical writing, experiments, open-source work and ideas such as the Personal Digital Life OS — my exploration of a long-term AI-powered Second Brain.
02 / TECHNOLOGY FOCUS
Areas I continue to explore, build, teach and write about.
LLMs, RAG, AI agents, personal memory systems, embeddings, vector search and practical applications of Generative AI.
Enterprise architecture, APIs, cloud, microservices, event driven systems, integration patterns and scalable platform design.
Relational, NoSQL and vector databases, data engineering, analytics, lakehouse architecture, search and data governance.
Application security, identity, OAuth, sessions, privacy, secure digital platforms and resilient system design.
AWS, Azure and GCP architecture, DevOps and DevSecOps, deployment strategies, observability and platform operations.
Product strategy, technology roadmaps, digital transformation, design thinking and turning emerging technologies into useful systems.
03 / SELECTED WORK
Personal technology work, experiments and long-term ideas that keep me learning and building.
Personal AI research
A personal AI memory platform designed around persistent memory, evidence, agents, workflows and long-term digital continuity across a person's life.
Open-source experiments
Hands-on experiments with LLMs, agents, RAG, embeddings, vector databases, model routing and practical AI application architectures.
Ideas, documented
More than a decade of technical writing covering AI, data, architecture, cloud, security, digital systems and emerging technology.
04 / WRITING & THINKING
Long-form technology writing, architecture ideas, experiments and reflections developed over many years.
My current Blogspot archive contains articles on AI, data, architecture, cloud, cybersecurity, digital platforms and technology leadership.
The archive will later move to blog.vengamanga.com.
Explore the full archive (opens in a new tab)Source code and personal experiments spanning Python, AI, databases, automation, utilities and other technology projects.
Explore repositories (opens in a new tab)PERSONAL AI RESEARCH
The Personal Digital Life OS — my Second Brain project — explores whether AI can become a trusted, long-term digital memory of a person's life. The concept brings together personal memory, documents, messages, photos, workflows, reminders, home systems and specialist agents while preserving evidence, access control and user ownership.
This is currently a personal research and development project. Public registration is not enabled yet.
Personal context.
Long-term continuity.
Grounded knowledge.
Traceable sources.
Your data.
Your control.
A second brain. Built around you.
05 / LET’S CONNECT
I am always interested in exchanging ideas around technology, architecture, AI, data and the Personal Digital Life OS.