THINKER DESIGNER BUILDER
Open to opportunities
Currently at Capillary Technologies Solution Architect · US
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I lead engineering teams, design systems that scale, and ship products that matter. 12+ years turning ambitious ideas into platforms used by hundreds of thousands.

+0 YEARS OF
EXPERIENCE
+0 TEAMS
BUILT
+0 USERS
IMPACTED

SYSTEM DESIGN,
CLOUD ARCHITECTURE

Designing distributed systems and cloud-native platforms that scale to 500K+ users. From microservices to event-driven architectures built for reliability and speed.

Microservices AWS Kubernetes API Design

AI ENGINEERING,
TEAM BUILDING

Building production-ready AI agents, RAG pipelines, and LLM-powered products. Growing high-performing engineering teams that ship with speed and craft.

LLM Agents RAG LangChain Hiring
RECENT PROJECTS

Sidekick

AI / ML — 100% Local AI Assistant
PythonFlutterOllamaGraph RAG

Summer formerly Toast App

Hospitality — Contactless Dining POS · 100xVC Backed ($250K)
FlutterNode.jsRazorpayAWS
12 YEARS OF EXPERIENCE

Capillary Technologies

Solution Architect (US)

Leading integrations for Fortune 500 clients including Sunoco, NASCAR, RCG, and Altria using Capillary's loyalty platform. AI Hackathon Runners Up, now being developed as an internal product. Built a local-first AI productivity app leveraging open-source LLMs.

Jun 2024 — Present

Rareblue Technologies

Co-Founder & CTO

Developed a contactless dining POS system using QR codes and built the infrastructure for scalability. Hired and groomed a lean remote team with 10x output. Acquired a seed investment of $250,000 from 100x VC.

Dec 2019 — Jan 2024

Songline Analytics

Tech Lead

Designed mobile wallet system and centralized logging/monitoring for microservices for ManaDr. Led cross-functional teams across Singapore, Vietnam, and Bengaluru. Improved debugging and observability standards across systems.

Sep 2018 — Dec 2019

Global Analytics

Software Engineer → Senior Software Engineer

Optimized MySQL performance and improved microservices scalability and API efficiency. Built a live log-driven documentation system to improve developer visibility and impact analysis.

Jun 2015 — Aug 2018
TECH STACK
OpenAI
Anthropic
Gemini
LangChain
LlamaIndex
Ollama
Strands
Google ADK
Langfuse
Docling
OpenAI
Anthropic
Gemini
LangChain
LlamaIndex
Ollama
Strands
Google ADK
Langfuse
Docling
AWS
Python
Docker
Kubernetes
MongoDB
PostgreSQL
Redis
Kafka
Flutter
Microservices
AWS
Python
Docker
Kubernetes
MongoDB
PostgreSQL
Redis
Kafka
Flutter
Microservices
AI & LEADERSHIP THOUGHTS
Local AI Privacy

I Ran 100% Local AI for 6 Months. Here's What I Learned.

Privacy regulations, real performance benchmarks, and the architecture that works — from building Sidekick.

Mar 15, 2025 10 min
RAG LLMs

RAG Is Lying to You: The Hidden Failure Modes Nobody Talks About

5 production failure modes, Graph RAG's real value, and the stack that actually works.

Feb 28, 2025 12 min
Team Building Leadership

The AI-Native Engineering Team: What 12 Years of Hiring Taught Me

Copilot raises the floor but increases bugs 41%. How my hiring criteria is changing.

Feb 10, 2025 8 min
Enterprise Strategy

Why Your Enterprise AI Initiative Is Probably Going to Fail

Gartner: 85% failure rate. 6 patterns that kill every initiative — and a 10-point checklist.

Jan 22, 2025 11 min
Strategy Vision

The AI Moat Illusion: Why Your Competitive Advantage Isn't the Model

Llama 3.1 ≈ GPT-4 capability. The 4 real moats and why the model is the least interesting part.

Jan 5, 2025 9 min
LET'S CONNECT

Looking for a technical leader to take your product from idea to scale? Let's talk.

rsarun66@gmail.com LinkedIn