01
Engineering
B.E. in Computer and Communication Engineering at Panimalar, Chennai. Learning how systems talk to each other.
THE ENGINEER BEHIND THE SYSTEMS
I’m Hariharan.
I build
things that react.
A backend engineer’s rigor.
An AI builder’s curiosity.
01 / WHO I AM
Some products live
or die on their APIs.
I’m a software engineer in Bengaluru. I build APIs and AI-powered products end to end, like PlatePielet, an AI restaurant-intelligence platform. At Neptune Controls I build real-time backends with Node.js, Python and React, running in production security and industrial environments.
02 / WHY I BUILD
Some problems need a pipeline.
Others need an agent.
Now I’m building AI-powered systems too: LLM architectures, RAG pipelines, MCP servers, automation workflows and agents, bridging industrial data and intelligent automation. On the side I ship small tools, like jwt-timeline on npm, that make an ordinary debugging day a little easier.
03 / THE EVOLUTION
Never just one thing.
An engineering journey.
Still being written.
02
Web Developer
Shipping MERN projects on GitHub: dashboards, chat apps and a donation platform. Learning by building.
03
Frontend Intern
Next.js and SaaS at Spectravach. The company website, built for SEO and performance.
04
Software Engineer
Real-time backends at Neptune Controls. OPC UA/DA, MQTT and camera integrations, live in production.
05
AI Builder
Built PlatePielet end to end, an AI restaurant-intelligence platform. Now RAG pipelines, MCP servers and agents.
THE CURRENT CHAPTER 02 / THE WORK, IN NUMBERS
Curiosity. In motion.
01 /1+
Years shipping to production
02 /500+
CodeChef problems solved
03 /3+
Certifications
04 /100+
Projects on GitHub
05 /1
Package on npm
06 /8.3
CGPA, B.E. Computer & Communication
CERTIFICATIONS
Learning, on the record.
Cloud and automation
credentials.
01
Microsoft Azure Fundamentals (AZ-900)
Microsoft. Cloud concepts, Azure services, security, governance and cost management.
02
TCS Cloud Computing
TCS. Cloud models, virtualization, deployment models and core cloud services.
03
Zoho Deluge Programming
Zoho. Deluge scripting, workflow automation and custom function development.
TECHNICAL STACK
The stack, end to end.
Languages, frameworks,
data and cloud.
01
Languages
JavaScript, Python, SQL, Java
02
Backend
Node.js, Express.js, REST APIs, WebSockets, event-driven systems
03
Frontend
React.js, Next.js, Tailwind CSS, ShadCN, Angular
04
Real-time
OPC UA/DA, MQTT
05
Databases
MongoDB, Oracle, SQL Server
06
Cloud and DevOps
Docker, AWS, AWS Lambda, Azure Blob Storage, Git, GitHub
07
AI systems
LLM architectures, RAG pipelines, MCP servers, automation workflows, AI agents
08
Tools
Postman, SSMS, VS Code
04 / HOW I WORK
01
Start with the API contract.
+02
Make it fail gracefully.
+03
Care about latency.
+04
Keep learning.
+ 05 / WHAT COMES NEXT
More agents. More pipelines.
One system at a time.
More AI systems and more open source. jwt-timeline is the start of a growing set of tools that move freely between APIs and AI.
06 / THE NEXT CHAPTER
Have an idea?
Let’s make it real.
A pipeline. An API. An agent. Something entirely new.
Let’s create something together