Suman Kumar

Code With Kolin2001 →15·10·2026

Suman
Kumar

AI & automation engineer who builds in public and teaches how.

Last shipped
MakeACalc10 Sept 2026
GitHub this year
615 contributionslive, including private work
Right now
--:--:-- ISTBengaluru

Chapter 1 · First computer, then college

Origin

– 2016

  1. 2001

    First computer: an Intel Pentium 1

    My father bought it.

    2009

    Pentium 4

    My father bought it.

  2. 2012 – 2016

    NMAM Institute of Technology, Nitte

    B.E., Electrical & Electronics Engineering

    Nitte, Karkala taluk, Udupi district, Karnataka

    Four years of engineering at NMAMIT — then an autonomous college affiliated to Visvesvaraya Technological University.

    Most of what stuck came from building things: a quadcopter around a microcontroller and ESCs, a 4×4×4 RGB LED cube, and a pile of smaller projects.

  3. 2013

    First laptop: HP Envy

    In my second year of engineering.

    2014

    Core i3 (4th gen) desktop

  4. 21 December 2016

    The camera goes on

    First video: 21 December 2016. Prank videos, for about six months — then I stopped making them.

Chapter 2 · Paid work, and a camera on the side

First job

– 2019

  1. C:\WORK> January 2017 – April 2019

    CSS Corp

    System Engineer

    First job: system engineering, test automation and Python. CSS Corp was a digital technology and customer-experience services provider — it became Movate in 2022, after I left.

  2. C:\VIDEO> 2017

    Bike, road, camera

    30+ places across India

    The channel came back around riding — daily life and travel, and it has been running ever since. More than 30 places across India so far.

Chapter 3 · Engineering, and everything at once

Engineer

– 2023

  1. DWG 009 · Machine

    Acer Predator Helios 300 (Core i7, 8th gen)

    Date10 April 2019
    ChapterEngineer
    Rev2019
  2. DWG 010 · Role

    HCLTech

    Python Automation Engineer

    L4/L7 protocol automation for Cisco Systems: SNMP features, traps and decryption tested on every new build, then automated — vWAAS and WAVE appliances.

    Performance and load testing for TFO optimisation with IxLoad, plus reproducing customer defects from dumps.

    DateMay 2019 – February 2021
    ChapterEngineer
    Rev2019
  3. DWG 011 · Channel

    Lockdown, live

    12k followers

    Gaming streams through the pandemic, up to 12,000 followers. I met a lot of creators that way, and some are still on my contact list.

    Date2020
    ChapterEngineer
    Rev2020
  4. DWG 012 · Life

    Bought a house

    Signed in 2021. Moved in on 30 June 2023.

    Date2021 – 2023
    ChapterEngineer
    Rev2021
  5. DWG 013 · Machine

    Ryzen 5 3600 desktop

    Date2021
    ChapterEngineer
    Rev2021
  6. DWG 014 · Role

    Ribbon Communications

    R&D Testing Engineer II

    R&D testing on Kubernetes and Python, at a company whose job is moving real-time voice and data safely across networks — session border controllers, voice core, IP optical transport.

    DateFebruary 2021 – May 2023
    ChapterEngineer
    Rev2021
  7. DWG 015 · Life

    Married

    DateNovember 2021
    ChapterEngineer
    Rev2021

Chapter 4 · The classroom goes global

Teacher

– 2025

  1. March 2023

    Four offers

    Head down on new skills, back on the market, out with offers from Nokia, Tejas, Arista and Juniper.

    Milestone

  2. May 2023 → now

    Juniper Networks

    Software Engineer 3

    Python and computer networking, in the place where networking is the product. Hewlett Packard Enterprise completed its acquisition of Juniper two years in.

    Role

  3. August 2023 → now

    topmate.io

    Career Coach500+ mentored · top 0.1%

    One-to-one career coaching, alongside the day job. Top 0.1% of coaches on the platform.

    Role

  4. 2024

    Desktop upgrade: Ryzen 5 5600X

    Machine

  5. 2024

    @codewithkolin

    50K followers

    The teaching account started in 2024. 50,000 followers as of September 2026.

    Channel

  6. 2025

    MacBook Pro M4

    Machine

  7. December 2025

    Became a father

    Life

900+

students taught since 2020

One dot for each of them.

Chapter 5 · One ship a week

Builder

→ now

  1. Milestone

    2026

    Networking, deeply

    Two tracks this year: networking down to the protocol level for the day job, automation and AI for everything else.

  2. Milestone

    2026

    One a week

    1 ship / week

    An app, a SaaS, a web app or a tool — one shipped every week. Everything else in this chapter is the receipt.

  3. LaunchedLive

    10 Sept 2026

    CalculateEveryday

    55 calculators that publish their own formula, source, and where they break — finance, health, math, conversion, and date-time. Its own standalone…

    toolsPrivate repo · described by outcome · hover to read
  4. LaunchedLive

    10 Sept 2026

    Code Beautifier

    60 developer tools and 12 printable cheat sheets — JSON, SQL, HTML/CSS/JS formatters, encoders, hashing, OpenAPI/GraphQL codegen, Docker/K8s/GitHub…

    toolsPrivate repo · described by outcome · hover to read
  5. LaunchedLive

    10 Sept 2026

    MakeACalc

    An AI-powered custom-calculator builder — describe the calculator you need, get a working, embeddable one back. Ships as its own product at…

    appsPrivate repo · described by outcome · hover to read
  6. Sealed

    September 2026

    One thing I'm not telling you yet

    Opens 2036

    There's one more thing. I'll tell you in 2036.

    Sealed · Opens 2036 · 3,365 days to go · hover to read

Today · --:--:-- IST

You are here.

Everything above is how I got here. This is what's on the bench right now.

Current focus · updated 13 September 2026

Building
codewithkolin.com — the career story behind all this
Just shipped
CalculateEveryday, Code Beautifier and MakeACalc — all launched 10 September
Teaching
900+ students at courses.codewithkolin.com
Writing
Daily build-in-public posts on X
Filming
The first long-form videos for YouTube
Learning
MCP servers and agentic workflows
Machine
MacBook Pro M4
Students taught
900+since 2020
GitHub this year
615contributionslive, including private work
Public repos
14live from GitHub
YouTube · builds
First video incoming306 subscribers as of Sep 2026