I'm Gagan Deep Singh, a software engineer who thrives at the intersection of enterprise scale and startup speed. I currently work as a Software Architect at Marriott International, building systems that serve millions of users worldwide.
I'm also a Founding Engineer at Xylo AI, where we're building an AI-powered customer insights platform from the ground up, doing full-stack development with a focus on ML pipelines and real-time analytics.
Outside of work, I'm building GLINCKER , a social-commerce platform, and contributing to open-source projects like GeoKit and Glin Profanity.
I write about software architecture, AI engineering, and lessons learned from building at scale. When I'm not coding, you'll find me exploring new technologies or mentoring junior developers.
Recent Posts
View allBuilding Glin-Profanity: A Multilingual Profanity Filter for 24+ Languages
How I built glin-profanity, a fast profanity detection library supporting 24+ languages with context-aware filtering, severity scoring, and MCP server integration.
Publishing 15+ npm Packages as a Solo Developer: What I Learned
Hard-won lessons from publishing across three npm scopes: monorepo trade-offs, versioning, CI/CD, MCP servers, and the download numbers that surprised me.
Building profClaw: An AI Agent Engine from Scratch
Why I built profClaw, a local-first AI agent engine that runs on Docker, VPS, or your laptop. Architecture decisions, deployment modes, and what I learned about agentic AI.
Generative Engine Optimization: Auditing Websites for AI-Readiness
What GEO is, why it matters for the AI search era, and how I built GeoKit to audit any website's AI-readiness with a 0-100 score.
Launching theSVG: The Open SVG Brand Library
Why I built theSVG.org, a free library of 4,000+ brand SVGs with variants, an npm ecosystem, and an MCP server for AI assistants.
Open Source
Experience
Software Architect
Marriott International
Building and scaling enterprise software systems for one of the world's largest hospitality companies.
Founder & Lead Architect
GLINCKER / GLINR Studios
Building an all-in-one platform with URL shortening, QR codes, AI moderation, and GLINR Studios developer tools suite. 10+ npm packages published.
Founding Engineer
Xylo AI
Building AI-powered customer insights platform. Full-stack development with focus on ML pipelines and real-time analytics.
Software Engineer
Ameriprise Financial
Built fintech solutions at enterprise scale. Modernized legacy systems and improved platform reliability.
Education
M.S. Software Engineering
University of St. Thomas
What People Say
“Gagan is the kind of engineer who sees the full picture, from system design to developer experience. His open-source work on GeoKit and glin-profanity shows the depth of his thinking.”
A.R.
Staff Engineer, Fortune 500 Tech
“Working with Gagan on GLINCKER was like having an architect and a builder in one person. He doesn't just plan systems. He ships them.”
M.K.
Product Designer, GLINR Studios
“His npm packages are some of the most thoughtfully designed tools I've used. The documentation is clear, the APIs are clean, and everything just works.”
S.P.
Full-Stack Developer, Open Source Contributor