00 / Hello

Zahid Khan.

I build systems.

Software products businesses and increasingly, things that touch the physical world.

I studied electronics. I ended up building software. Software led me into AI, products and companies. Now I’m slowly finding my way back toward machines and the physical world.

Currently

Stayin · Machynx

Engineer · Builder · Co-founder·India

01 /

Trajectory of disciplines

2020 → Present
2020 — 2024

B.Tech in Electronics & Communication

Amrita Vishwa Vidyapeetham. Formally studied electronics, signals, and communication theory while building software in the margins.

2022 — 2026

Freelance Full-Stack Engineering

Ground-level learning through production code: deployment bugs, databases, client expectations, and the work between them.

2023 — 2025

Truwave Software · Part-time Developer

Built digital workflows for backflow and water-meter inspection across NestJS backends, web portals, and Flutter applications.

2024

IEEE INDICON Research Publication

Co-authored research on detecting Atrial Fibrillation from noisy Photoplethysmography wrist signals using pulse interval dynamics.

Jan 2024 — Aug 2024

Bosch · Powertrain Solutions Intern

Worked in the safety department around a transmission control unit: C, IBM Rhapsody, AEEPro, and ISO 26262 functional-safety thinking. An eye-opening first close look at how software becomes part of an automobile.

2024 — 2025

Emblock · Software Engineer

Worked on backend software for industrial machine monitoring, MQTT telemetry, PostgreSQL storage, and operator assistance tools.

2025 — 2026

Bosch · ML Engineer Apprentice

Worked with global teams across Databricks, Azure, PyTorch, Qwen-VL, Transformers, and attention-map analysis. Focused on taking transformer work from local experiments through Azure production training and GitHub CI/CD.

2024 — present

Stayin · Co-founder & CTO

Owning the technical surface end to end: product decisions, backend, schema design, infrastructure, DevOps, architecture trade-offs, and the work required to make an Indian metro residential rental platform useful.

02 /

What I’m building now.

Stayin / changing responsibility

The codebase wasn’t the thing getting complicated.

The responsibility was. Stayin began as a software problem, then became a product, an operation and a team that needed clear decisions.

CO-FOUNDER · CTO
Backend

Build the APIs, design the database and make the first version work.

What changed for me

At some point my work stopped being measured only by what I personally implemented. The clarity I gave other people started mattering just as much.

03 /

Industrial systems and earlier work.

Truwave Software

Digital workflows for backflow and water-meter inspection, moving from paper records toward structured tools.

Workflow / step-through

Physical pen-and-paper records filled manually during inspections.

Hardware → edge → Machynx Cloud
BUS: RS485 / MODBUS RTUINGESTION: MQTT / TLSSTREAM: 1,622 PKTS
01 / MACHINE
Shop-floor equipment

Motors, PLCs and existing signals stay where they are.

RS485 / MODBUS
02 / EDGE NODE
Local evidence

Firmware reads, buffers and forwards telemetry.

MQTT / TLS
03 / MACHYNX CLOUD
Data + answers

Time-series data becomes useful context for Lynx.

Fleet / machine context

Choose a machine before asking Lynx. Fleet questions add the machines together.

3 MACHINES · ₹8,920 SAVED TODAY
FLEET OUTPUT2,924 UNITS
FLEET SAVINGS8,920
AVG AVAILABILITY97.2%
ASKING ABOUTPRESS 01
Lynx / Press 01 conversation
LIVE TELEMETRY
YOUWhat’s the uptime?
LYNX CHATBOTThe line has been available for 18h 42m today.
Quick messages
STAGE FOCUS: Start with the equipment itself: motors, PLCs and existing signals are the evidence layer.HONEST HARDWARE CRAFT
04 / Bosch × CARIAD · Automated driving

From questioning labels to understanding perception.

I entered automotive computer vision through the data side, working with multimodal models and annotation quality. The question was simple: which samples deserve a second look before a label is trusted as ground truth?

In the Bosch–CARIAD automated-driving environment, I worked with perception data covering traffic-management infrastructure and temporary road scenes: poles, bollards, hydrants, traffic cones, traffic lights, signs and construction zones.

These objects are static or slow-moving, but they still shape the vehicle’s decision-making. A useful perception system has to detect them, place them in context and distinguish a harmless roadside object from something that changes the path ahead.

FOCUS: Multimodal learning · dataset quality · model debugging
BUILT WITH: Python · PyTorch · Transformers · Qwen-VL
OBJECT DOMAIN: Traffic-management infrastructure
Bosch × CARIAD / traffic-management perceptionQUESTION: CAN I MOVE FORWARD?
ROAD-SIDE POLESCROSS-ATTENTION / ILLUSTRATIVE
Roadside poles
SAFE

Static roadside infrastructure is detected beyond the vehicle’s path.

Dataset quality / second opinion
ANNOTATION
car
VLM SECOND OPINION
looks consistent

I experimented with using a vision-language model to question existing labels. Disagreement, confidence and margin checks surface suspicious samples for human review instead of silently overwriting ground truth.

What I learned from the difficult cases

The model learned useful structure, but class imbalance and ambiguous labels made failure analysis more valuable than a single accuracy score. It pushed me to look beyond model tuning and understand the dataset that shaped every result.

05 /

Selected projects

01.

Flopods

A small experiment in making software feel less like a dashboard and more like a place to think.

GitHub →
02.

Traffic VLM

Exploring visual language models and the practical edges of dataset quality work.

GitHub →
03.

Turbo Nest Next Prisma Template

A full-stack starting point for building serious TypeScript applications.

GitHub →
04.

AFib / PPG signal processing

Detection of Atrial Fibrillation using PPG Signals — published at IEEE INDICON 2024. The work combines derived and morphological PPG features, including entropy, RMSSD, onset amplitude, crest interval and pulse width.

Publication →
06 / Now

Where attention is going.

Learning what factory floors actually need.

building
  • + Stayin
  • + Machynx
learning
  • + industrial systems
  • + product
  • + business / finance
  • + AI / engineering
outside
  • + badminton
  • + reading
  • + tarantulas
07 / Outside work

A life around the work.

I care about companies almost as much as engineering, so over time I started caring less about individual technologies and more about whether something useful actually gets built.

Outside work I play badminton, read, spend time with my tarantulas, and disappear into subjects I know very little about until I understand slightly more than I did before.

My tarantula babies

I also keep tarantulas. They’re quiet, strange little creatures that I’m probably far too attached to. The tiny one wandering around this website is there because of them.

Current edges

Badminton · Reading · Tarantulas · Product & startups · AI / computer vision · Software systems · Manufacturing — learning · Business

08 /

Things I work with.

Backend

Node.js · NestJS · TypeScript · Python · API design · MatLab

Data & schema

PostgreSQL · MySQL · Prisma · Redis · Schema design

Cloud & DevOps

AWS · Azure · Docker · Nginx · Cloudflare · GitHub CI/CD

AI & vision

PyTorch · Transformers · Qwen-VL · Databricks · LangGraph · Computer vision · Attention maps

Industrial systems

MQTT · RS485 / Modbus · Telemetry · Embedded direction · Manufacturing

Safety & tools

C · ISO 26262 · IBM Rhapsody · AEEPro · Functional safety

Frontend

React · React Native · Flutter

Product & architecture

Product decisions · Architecture trade-offs · Operator workflows · Team engineering

Currently learning more about

Industrial systems · Embedded systems · Manufacturing · Product · Business / finance

09 /

Where I’m trying to go.

BUILD
  • make Stayin meaningfully better
  • turn Machynx into something factories genuinely use
  • grow beyond pure software work
LEARN
  • manufacturing
  • embedded / hardware systems
  • finance
  • product
  • leadership
MAKE
  • strange experiments
  • more things connecting software to physical systems
LIVE
  • badminton
  • reading
  • travel
  • life outside work
Notebook / quiet for now

Nothing to show here yet.

11 / Talk

Let’s talk about the thing you’re trying to make.

Work, startups, products, AI, industrial systems, collaboration—or simply something interesting.

Contact

Tell me a little about it.

Work, startups, products, AI, industrial systems, collaboration—or simply something interesting.

Send me a message first. I’ll share my direct details once I’ve checked the request.

10 / Meet

A conversation, if useful.

Pick a real open window. I only show times that are actually available.

Times are shown in the host’s timezone.