VISAKHAPATNAM, INDIA — SELECTED WORK / 2026
I build software that does more than sit on a screen — city-scale simulation, automation engines that drive other software, and AI tooling that handles real work.
01 — 06
City-scale digital twin & infrastructure simulation
A 3D twin of central London built on real OpenStreetMap geometry, with the water network modelled as a graph you can break, isolate and repair to watch failure propagate.
3D BUILDINGS + TERRAIN
PRESSURE SIMULATION
PIPE BREAK / REPAIR
BUILDING ISOLATION
ROAD CLOSURE STATE
CASE STUDY →
Browser automation platform
Records a browser session once, then replays it as a parameterised workflow — scheduled, retried, logged and monitored from one dashboard.
NODE.JS · EXPRESS · PLAYWRIGHT · SQLITE
Desktop automation engine
Software controlling software: drives WhatsApp Desktop through the Windows accessibility tree, routes every message through a webhook, and persists state before each irreversible step so a crash can be recovered from.
PYTHON · WINDOWS UI AUTOMATION · MONGODB · PYSIDE6
WhatsApp automation & messaging infrastructure
A FastAPI bridge over WhatsApp messaging rather than a chat client: authenticated send and media operations, validated configuration, and MongoDB Atlas archival of everything that passes through.
Privacy detection & data masking
Finds sensitive information before it becomes a problem. A hybrid regex and spaCy NLP pipeline reads PDF, DOCX, CSV, XLSX and TXT files, scores risk, then masks what it finds — in batch, from the CLI or the web app.
Personal productivity system
Tasks, notes and time in one calm surface. The engineering sits underneath: one store abstraction serving either local storage or Supabase, optimistic mutations, realtime sync, and a PWA shell that works offline.
LOCAL / CLOUD ABSTRACTION
OPTIMISTIC MUTATIONS
REALTIME SYNC
ZUSTAND · SUPABASE
PWA + SHORTCUTS
SEP 2025 — PRESENT
Software Engineering Intern · Remote
FEB 2025 — PRESENT
Co-founder · Technical Lead, AI/ML & Data Science
JUN — JUL 2025
Python Programming Intern
TensorFlow · OpenCV · YOLO · LangChain · spaCy · LLMs · prompt engineering · NLP
Playwright · Selenium · n8n · Windows UI Automation · webhooks · schedulers · retries
FastAPI · Flask · Node.js · Express · REST APIs · SQLAlchemy · auth & RBAC
React · TypeScript · JavaScript · Zustand · Tailwind · Cesium / Resium · PWA
Python · pandas · matplotlib · NetworkX · SQL · SQLite · MongoDB · Supabase · OpenStreetMap / Overpass
Git · Cursor · Claude Code · v0 · Bolt · multithreading · testing · deployment
observation · situations · environment
loads of free AI tools · computers & machines
9×
HACKATHON WINNER
10+
HACKATHONS ORGANISED
100+
MEMBERS UPSKILLED
6
SYSTEMS SHIPPED ABOVE
SOURCE: CODOLIO PROFILE
The other side of building systems: breaking problems down.
#29
GLOBALLY ON CODOLIO
4,644 problems.
29 contests.
Still solving.
4,644
QUESTIONS SOLVED
29
CONTESTS ATTENDED
180
ACTIVE DAYS
5,618
SUBMISSIONS
114
MAX STREAK
24
AWARDS
LEETCODE
1784
CURRENT RATING
1784
MAX RATING
20 CONTESTS
CODECHEF ★★★★★
2017
CURRENT RATING
2192
MAX RATING
9 CONTESTS
MOST RECENT CONTEST
LEETCODE WEEKLY 518
06 SEP 2026 · RANK 233
I build systems that ship — not prototypes that collect stars.
Most of what I make sits somewhere between AI, systems and automation: things that drive other software, model infrastructure, or read documents nobody wants to read. I learn by building, and the projects on this page are how I got here.
I'm a dual-degree student — B.Tech in Computer Science at GVPCDPGC and B.Sc in Data Science & Programming at IIT Madras — currently interning remotely as a software engineer at BrainyMed, where the work is workflow automation and end-to-end systems.
I move fast on new tooling, but I still build foundations from scratch when it matters.
VENKATA SAI VARSHITH SANDAKA · VISAKHAPATNAM, INDIA · +91 79811 49423