Active Pillar
AI Systems & Agentic Workflows
Architecting asynchronous, event-driven microservices designed for intensive, heavy-I/O model inference pipelines.
sivarajan@architect:~# whoami _
> Systems Thinker. AI Platform Architect. Fractional CTO.
Core Identity
CTO-level engineering leader with 30+ years of continuity across platform engineering, distributed systems, SaaS modernization, and production-grade AI-native product architecture. I bridge the critical gap between executive product vision and hands-on technical execution.
What keeps me in this work after three decades is the same thing that got me into it: the moment a system that used to fight you starts working with you instead.
Available for fractional mandates · up to 20 hrs/week · 15 days’ noticeSystem Topology / Live Context
Career Timeline
1994
Started as a programmer — GM/GMAC, Remedy
2003
Co-founder & Technical Director, TechnoTryst
2014
Director of Technology, media & streaming
2022
CTO — 1,100+ engineers, $20M+ portfolio
2026
Fractional CTO & independent builder
Active Pillar
Architecting asynchronous, event-driven microservices designed for intensive, heavy-I/O model inference pipelines.
Active Pillar
Engineering scalable spatial and data platforms for real estate, utilizing modern stacks to accelerate property search and asset valuation algorithms.
Active Pillar
Implementing hybrid machine learning models and predictive analysis layers to generate automated workflows in regulated domains.
Active Pillar
Providing fractional CTO advisory and zero-to-one product engineering governance without the overhead of a full-time executive.
The Differentiator: Continuity across technology eras. From early web-tier architectures to modern enterprise AI, my value lies in selecting tech stacks based on true economic outcomes, not market hype.
I take on fractional CTO mandates as an individual — this site, and the contact details below, are for that work directly with me.
For engagements that need delivery capacity behind the advisory — a build team, not just a roadmap — I route work through my own entities:
Both are active, commercial entities we own and operate. If a mandate needs execution capacity, not just my time, that’s where it happens.
Available for fractional architecture mandates, cross-border system migrations, and deep AI-native capability consulting.