Viswajeth TSR, senior backend engineerViswajethTSR.

Multi-tenant SaaS & HRMS platform

Internal product · YM Automation

One platform, many businesses. Every tenant gets its own database, provisioned automatically, with a central master DB for registration, billing and licensing.

1. sign-up→
2. provisioning engine→
3. tenant DB→
4. HRMS live

• Attendance three ways: geofenced mobile check-in, face recognition (Flutter + TensorFlow Lite) and shift scheduling.
• Dynamic settings per business — payroll, shifts, departments, designations, overtime and leave policies — without code changes.
• Scales by adding tenant databases, not by growing one shared schema.

Ather EV component test bench

Salzer Electronics

Small inductors and capacitors for EV assemblies, tested automatically: the software triggers every measurement and has the result back in milliseconds.

1. software→
2. PUSR (LAN)→
3. RS232→
4. meter→
5. result · ms

• A GW Instek meter measures resistance and inductance; a second meter runs high-voltage and insulation-resistance tests.
• Commands leave the PC over the local network to a PUSR serial server, then go out over RS232 to each meter — results return the same way.
• Configurable multi-step test workflows replace notebook and Excel logging.

25% less testing time than manual

Transformer test bench

Salzer Electronics

The same RS232 pipeline, made highly dynamic: 1- and 3-phase transformers and inductors run through four instruments and come out with a customer-ready report.

1. software→
2. PUSR→
3. RS232 × 4 meters→
4. calculations→
5. customer report

• Four stations: HV & insulation resistance, impulse winding, inductance & resistance, and Yokogawa load-loss.
• Test plans configurable per product; readings calculated and compiled automatically.
• Customer report generated at the end of every run.

20% less testing time than manual

MQTT industrial oven automation

Salzer Electronics

After testing, transformers and inductors are cured in industrial ovens. The software sets and watches every cycle over MQTT.

1. software→
2. Mosquitto→
3. Siemens controller + HMI→
4. oven

• Writes set temperatures and cycle times, triggers emergency stop, and monitors the door and live temperature.
• Mosquitto runs on the host PC; the oven's Siemens controller drives the hardware and its HMI publishes telemetry to the broker.
• The software subscribes and turns it into live dashboards and batch-cycle records.

Medical waste management platform

Medicare Envirosystems

Three apps that became one — agreements, colour-coded bags and the collection fleet — because only hospitals under agreement can buy bags and hand over waste.

1. agreement→
2. bags sold (QR)→
3. route→
4. collection→
5. treatment

• Agreement lifecycle for 4,000+ hospitals: contracts, renewals and their states.
• Colour-coded bags sold to contracted hospitals, each tracked by QR from sale to collection.
• Flutter fleet app for route allocation and collection — drivers scan bags, log fuel and incidents.

Foot pressure monitor

VIT

A mobile app that listens to a Bluetooth module reading six pressure points — three under each foot — and turns the stream into reports.

1. 6 sensors→
2. Bluetooth module→
3. app→
4. reports

• Pairs with the Bluetooth module and listens to live pressure data from all six sensors.
• Builds reports from the readings, foot by foot and point by point.