Who's building
I'm Karthik, a solo builder in Bangalore. I run Hivelinks Technologies, design and install smart homes, and spend my off hours flashing firmware onto things that have no business being connected. Firmware, hardware, backend, dashboard: one pair of hands across the whole stack.
Software that runs the daily work of a business, not just records it.
Machines, vehicles and meters reporting in, live.
The code that makes the hardware behave.
Smart homes that still work when the internet doesn't.
You see it working before you commit. No slide decks standing in for software.
Built around your process, not a template you bend yourself to fit.
One person from firmware to dashboard. Nothing lost in handoffs between vendors.
Systems still running five years on. I build things I can keep alive.
Admissions, attendance, fees and communication for schools, run from one place.
Payroll, attendance and statutory compliance without the monthly scramble.
Live vehicle location, trips and alerts for fleets on the move.
Industrial equipment reporting its own health, online and on call.
Cameras across many sites, watched from a single screen.
Residential automation designed, installed and supported across Bangalore.
ProblemA growing compliance practice was tracking hundreds of filings across spreadsheets, email and memory. One missed deadline meant a penalty.
ProcessMapped every recurring obligation, then built the workflow around the operator's real routine instead of an idealised one.
SolutionOne system that knows what is due, who owns it, and what is slipping, with reminders that fire before deadlines, not after.
ProblemField equipment gave no signal until it failed. Every fault was a surprise and a site visit.
ProcessAdded sensing to existing machines rather than replacing them, and sent telemetry over whatever network the site already had.
SolutionA live dashboard showing every unit health, with alerts that reach the team before the customer notices.
After hours
Off the clock I am still building. Different stakes, same itch: make one thing talk to another and do something useful.
I flash microcontrollers for fun and write the firmware that makes them behave. A board, a sensor, a radio, and an evening quietly disappears.
Breadboards, solder, the occasional custom PCB. I like understanding a system down to the trace, not just the API on top of it.
I run my own stack. Local-first automations, dashboards I built myself, data that stays in the house. Owning it beats renting someone cloud.