Prothes Barai and Shreyasi Madhu, founders of PSBM Labs, working together
BARISAL, BANGLADESH

Two engineers.
One lab. Software that ships.

PSBM Labs is a small, independent studio building mobile apps and custom software — from the first line of code through to release and support. No account managers, no hand-offs — the people who scope your project are the people who build it.

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organization.status
organizationPSBM Labs
foundersProthes Barai · Shreyasi Madhu
locationBarisal, Bangladesh
focusApp & Software Development
active_projects6
statusaccepting new work
0
Products shipped
0
Founding engineers
0
Sectors served
0%
In-house delivery
What we do

Software, built end to end

We work as a small, hands-on team — one point of contact from planning through to a published, maintained product.

▣

App Development

Android and cross-platform apps designed, built, and published — including ongoing maintenance after release.

◆

Software Development

Custom software, internal tools, and backend systems built around how a business actually works.

◈

IT Consulting

Technical planning and architecture guidance for teams deciding what to build and how.

⟐

Maintenance & Support

Version updates, bug fixes, and monitoring after launch, so products keep running without surprises.

See full service details & engagement models →
Selected work

A few recent builds

A sample of products designed and engineered in-house. See the full portfolio for the complete list, tech stacks, and case notes.

01Live
Retail · Mobile + Web

Setu POS

Point-of-sale and inventory system for small retail shops, with offline billing and stock sync.

KotlinFirebaseRoom DB
02Live
Agriculture · Mobile

Krishi Bazar

Marketplace app connecting farmers directly with local buyers, with price alerts and order tracking.

FlutterNode.jsMongoDB
05Live
Logistics · Web dashboard

FreightTrack BD

Fleet and shipment tracking dashboard for regional logistics operators, with route history and alerts.

PythonDjangoPostgreSQL
View the full portfolio →
KotlinFlutterGoPythonDjangoFirebaseMySQLPostgreSQLMongoDBBootstrap 5jQueryREST APIs KotlinFlutterGoPythonDjangoFirebaseMySQLPostgreSQLMongoDBBootstrap 5jQueryREST APIs
How we work

A straightforward build process

Every engagement follows the same four stages, kept lean because the team building it is small.

01

Scope

We define the problem, users, and the smallest version worth shipping first.

02

Build

Design and development happen in short cycles, with working builds shared regularly.

03

Launch

We handle release — app store submission, deployment, and go-live checks.

04

Support

Post-launch monitoring, fixes, and updates, handled by the same team that built it.

Who we are

Run directly by its founders

No layers between you and the people writing the code.

Prothes Barai

Prothes Barai

FOUNDER & ENGINEER

Leads app and software development at the studio, from architecture to release.

More about the team ↗
Shreyasi Madhu

Shreyasi Madhu

CO-FOUNDER & ENGINEER

Works alongside on product direction and engineering across the studio's projects.

More about the team ↗
Angkan Barai

Angkan Barai

PRIMARY MAINTAINER & CO-FOUNDER

Keeps the studio's shipped products stable — owns maintenance, monitoring, and updates after launch.

More about the team ↗
Client feedback

What partners say about working with us

★★★★★

"Setu POS replaced three separate notebooks in our shop. Support has been fast whenever we've needed a fix."

RA
Rafiqul Alam
Shop owner, Barisal
★★★★★

"The team scoped Krishi Bazar tightly and shipped the first working version faster than we expected."

NH
Nasrin Haque
Program lead, agri-cooperative
★★★★★

"EduPortal has cut our attendance and reporting work down considerably. Clear communication throughout."

KI
Kamrul Islam
School administrator

Have a product in mind?

Tell us what you're building — we'll reply with next steps within one business day.

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