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Backend & real-time systems

Sea.Ship.Math.

Websites and web apps,
built end to end.
Open to freelance work. By Yash.

Authored sea / ab4fcf43Make your own

Look closer.
Keep going.

Every finished thing has a drawing underneath. This is where I keep mine.

Work

Ideas, made
tangible.

I am a backend engineer first, so the client work is shown as the system underneath: a law practice found through search, a platform that took businesses off paper, and a security system that runs in real time. And two projects of my own.

For clients

01 / System drawingLive site · 2026
WRITTEN BY THE OWNERGENERATED IN ADVANCEREAD BYFROM SEARCH ALONEMarkdown filesFROM A TEMPLATEBuild checksA MISTAKE STOPS THE DEPLOYStatic pagesFULL TEXT · JSON-LD · LLMS.TXT · RSSSearch enginesGOOGLE · BINGAI assistantsCRAWLERS LET INEnquiriesA CLIENT · INTERNSHIP APPLICATIONS

01 / A client's law practice

Built to be found.

Found through search.
Edited without a developer.

The website for an Indian intellectual property law practice, a profession that may not advertise, built so search engines and AI assistants find it and its owner publishes without a developer.

In a single month, from search alone: five internship applications and a new client.

Read the case study of Velora Rights →
02 / System drawingPrivate: no screenshots
MODULES CHOSEN BY THE BUSINESSPRIVATE BUSINESS DATAINSIGHTS THAT ADAPTMADE FOR THE PEOPLE USING ITSalesBuyingInventoryEnquiriesPostgreSQLEACH BUSINESS KEPT APARTInsightsADAPT TO SELECTED MODULESDashboardsOWNER · MANAGER · WORKERBilingual/multilingual UIICONS · COLOUR

02 / A client's SaaS product

Off paper, into one system.

Modular operations software for teams moving off paper: clients choose and pay for what they need, their data stays separate, and practical insights adapt to the modules they use.

Four businesses onboarded, with teams of 2 to 12.

Read the case study of Business Operations Platform →
03 / System drawingPrivate: no screenshots
PRIVATE SITE LANSEPARATE SERVICESTO PEOPLE AND MONITORINGFibre-optic sensorsHIGH-FREQUENCY DATALocal serverRASPBERRY PI · ANOMALIESAdmin serverMINIMUM ALERT DATAVideo serviceRTSP → BROWSEROwners & managersFOUR CHANNELSMonitoring screenMAP · CAMERAS · WEBCAMS

03 / A client's security system

A cable that raises the alarm.

Fibre-optic sensing turned into live security alerts: Raspberry Pis detect anomalies on private LANs; only alert details reach the notification server, while operators see events beside switchable CCTV and webcam video.

Deployed at five sites over a year and a half.

Read the case study of Real-time Intrusion Detection →

Of my own

04

A personal archive

Wedding Photo Platform

A wedding told in chapters, photo reels and albums, where guests find every photograph they appear in.

7,504 photographs, 92 people found by face, nothing paid per image.

Read the case study of Wedding Photo Platform →
05

Everyday operations

Household Hub

Rent, tenants and household spending in one place, with reminders sent over WhatsApp and handwritten expense slips read into entries you review.

Runs a family's rent and spending; its users include a grandmother.

Read the case study of Household Hub →

About

Yash
Shrivastava.

A founding engineer with more than five years in backend and real-time systems. I have led whole systems from the first plan to the deployed product; Maxsash Studio is where I build them now, from the drawing underneath to the finished thing. Working with me means talking to the person who writes the code.

Based in
Tikamgarh, India. Working remotely.
Experience
Java developer, then full-stack developer at a product SaaS company, 2021–2026. Founding engineer on two freelance platforms.
Works with
Java · Spring Boot · Python · TypeScript · React · Next.js · PostgreSQL · MongoDB · InfluxDB · Docker
Portrait of Yash Shrivastava
The drawing underneath: a photograph, engraved in the waves of Home water, the studio's own sea.

Open to freelance work

Something
to build?

Write with the idea, who it is for and when you would like it live. A few lines are enough to start.

What to expect

  1. 01

    Plan

    Who it is for, what the first version must do and what can wait. Advice on what will work for your business, not what looks fancy or costs too much. A short plan before any code.

  2. 02

    Build

    The screens, the backend and the database, built together so they fit, and shown to you as they take shape.

  3. 03

    Launch

    Deployed on your domain and handed over with everything you need to own it: the code, the accounts, and how to run it.

Backend or real-time work on its own is welcome too: APIs, event-driven systems, a database that has slowed down.

The navigator’s notebookObservations & constructions