Why I Built This
I am the founder of Data Sunita platform. I build systems focused on productivity tracking, telemetry analytics, cybersecurity learning, and personal data intelligence.
My goal is to create self-hosted platforms that help people understand time usage, attention, habits, and device behaviour using real data — not synthetic metrics from apps that profit off your attention.
I believe the most powerful thing you can do in the modern world is own your own data. Not surrender it to platforms in exchange for a free service. Not let algorithms decide what you see, think, or do next.
By day, I work as a backend and embedded-systems developer based in Bengaluru, and as a Teaching Assistant at PES University's ISFCR, where I help build the IoT/embedded-systems and Ethical Hacking & Exploit Development coursework — the same hands-on, systems-first mindset that shapes Data Sunita.
// mission statement
"Build systems that let humans reclaim their time, attention,
and agency — one data point at a time."
— Rachappa Biradar, sunita.space
What I'm Building
Telemetry Systems
Passive data collection from laptops, phones, and wearables — unified into a single stream.
Productivity Analytics
Pattern recognition across digital behaviour — identifying focus killers and attention leaks.
Cybersecurity Learning
Active practice on TryHackMe — building the security layer for the Data Sunita platform.
Where I Work
TA — IoT & Embedded Systems
PES University, ISFCR · 2026 – Present
Build lecture and lab material on ESP32 architecture, memory, GPIO, and
communication protocols (UART, SPI, I2C, CAN, Wi-Fi, Bluetooth). Authored a
professional IoT project proposal with a custom architecture diagram
(ESP32-C3 sensor nodes, MQTT/CoAP, Redis, PostgreSQL) used as course
reference material.
TA — Ethical Hacking & Exploit Dev.
PES University, ISFCR (M.Tech) · 2026 – Present
Design lab exercises and grade ISA/ESA assessments for the Executive
M.Tech course. Built and maintain a dedicated TryHackMe room and a live
target domain for reconnaissance exercises (passive/active recon,
Wireshark analysis, Nmap scanning); ran hands-on workshops on phishing,
Wi-Fi Evil Twin, and call-bombing attacks.
Selected Work
Secure Multi-Protocol IoT Gateway
Node.js · MongoDB · MQTT · Raspberry Pi · Arduino
Embedded IoT gateway collecting real-time telemetry from Raspberry Pi and
Arduino sensor nodes without data loss, integrating Wi-Fi, Bluetooth,
Zigbee, and LoRa into a single MQTT-based gateway.
Digital Addiction Relapse Prediction
Node.js · Express · Python · Scikit-learn
REST APIs for real-time usage-log ingestion, a feature pipeline (Usage
Velocity, Activity Ratio, App Entropy), and a Random Forest model
(ROC-AUC 0.80) served via a real-time relapse-risk scoring API.
Real-Time ESP32 Motion Capture
ESP32 · IMU Sensors · MQTT · NTP · Redis · WebSockets
Multi-IMU motion-capture pipeline synchronized via NTP and streamed over
MQTT, using Redis for frame buffering/sync and WebSockets to drive a
browser-based 3D skeleton visualizer.
Cybersecurity Lab & Home Lab
Proxmox · Ubuntu Server · Docker · Wazuh · Nmap · Burp Suite
Isolated virtualized lab environments on Proxmox for security
experimentation, plus a self-hosted home lab for servers, networking,
and web apps/APIs, monitored with Wazuh.
Technical Skills
Background
B.Tech in Computer Science
PES University, Bengaluru · CGPA: 6.7