Work

Everything in one place: the research, the tools, the businesses, and the rest of a working life. Engineering is my training, research is my direction, and running businesses is how I pay for both and keep them honest.

Engineering research

My research asks how a drone can make good decisions on its own: perceiving its surroundings, weighing options under uncertainty and energy limits, and acting with a reason it can show. Solar-electric flight is the complementary line, extending endurance so the decisions have time to matter.

Undergraduate thesis, 2022

Design and analysis of a solar-powered quadcopter, written for my BEng in Aeronautical Engineering at Nanchang Hangkong University. It is the honest starting point of the parity question the current software now answers reproducibly: can a solar multirotor ever harvest as much energy as it consumes? The reproducible answer is no, and the reason why shapes the research.

Solar charge-consumption parity in multirotor UAVs

Preprint in preparation, planned November 2026

A research paper on the parity result, built on solar-uav-sim. Journal submission to follow. Nothing else is listed here, because nothing else exists yet.

Interests

Autonomous UAV decision-making, solar-electric endurance, counter-UAS concepts, applied aerodynamics, aviation data systems.

Engineering tools

Seven open-source Python projects, each with a full automated test suite, continuous integration, and a public v1.0.0 release. 121 tests across the seven projects. Every number quoted on this site can be checked against the code.

Solar flight

solar-uav-sim

Solar UAV endurance simulator. Simulates a solar drone across 24 hours with real solar geometry, panel and battery models, and momentum-theory propulsion, then solves for charge-consumption parity. Headline result: a 3 kg quadcopter with 1 square metre of panel harvests 1,567 Wh against 6,613 Wh consumed over a Dhaka solstice day, and the parity solver shows even tripled sunlight cannot close the gap. Grows out of my 2022 undergraduate thesis.

Autonomy

drone-autonomy-sim

Onboard autonomy simulation. A drone in a grid world senses obstacles within a limited radius, plans with A*, replans in flight when the world changes, and follows a battery-reserve rule that sends it home when continuing is unsafe. Every decision is logged with its reason.

Defence

counter-uas-sim

Counter-drone defence simulation for research and education. Noisy detection, Kalman filter tracking, a documented threat score, proportional-navigation guidance for a low-cost interceptor, and seeded Monte Carlo analysis: intercept probability 0.795, USD 550 per successful intercept against USD 55,031 for a missile-class system using publicly reported estimates.

Atmosphere

isa-aero

International Standard Atmosphere and aerodynamics utilities. Atmosphere state to 51 km, airspeed conversions, Reynolds and Mach, lift, drag, and stall speed. Reproduces the official ISA table values.

Weather

metar-decoder

METAR aviation weather decoder. Raw airport weather reports parsed into structured data and plain English. Pure Python standard library, zero dependencies.

Aerodynamics

naca-airfoil

NACA 4-digit airfoil generator and analyzer. Geometry, thin-airfoil theory, Selig and CSV export, plots. Documents openly where thin-airfoil theory departs from wind-tunnel data, and why.

Missions

drone-mission-planner

Multirotor mission feasibility. Waypoints, polygon geofence checks, energy estimates against battery and reserve, and a FEASIBLE, MARGINAL, or INFEASIBLE verdict naming the binding constraint.

In progress

What is coming

The parity preprint in November 2026. Version 1.1 of the flagships: a vortex panel method for naca-airfoil, endurance-limited guidance comparisons for counter-uas-sim, larger autonomy scenarios. A short demo video of the autonomy decision log.

Business ventures

An organized record, most recent first, with honest status labels.

Subtle Corp 2024 to present

IT services and e-commerce, Chattogram. Trade licensed with Chattogram City Corporation. Member of e-CAB (2025).

Rasa Electronics 2022 to present

Electronics supplier, importer, and exporter, Chattogram. Trade licensed with Chattogram City Corporation. Member of the Chattogram Chamber of Commerce.

Ekarigori Limited 2019 to 2025, dissolved

My first company: a brand, PR, and reputation management agency, run for six years before it was dissolved in 2025. Profiled by IBTimes India and Jagonews24. The operating experience behind everything since: sourcing, trading, and running a small team on thin margins. Through it, young entrepreneurs, artists, and small businesses got a platform (see Community).

Coding

Freelance developer and designer on Fiverr and Upwork from 2012 to 2018: websites, print-on-demand, dropshipping storefronts, and digital marketing builds for clients in several countries. Today the coding is the open-source engineering tools above, and this website itself.

Working set

Python, JavaScript, HTML/CSS, WordPress.

Creative

Cryptocurrency and Blockchain Explained

Book, Amazon, June 2021. ISBN 9798527906318

A plain-language guide to cryptocurrency and blockchain, published on Amazon. Amazon author page.

Meraki

Album, released via DistroKid

Recording artist with releases on Spotify and other platforms. The album Meraki includes the tracks "Sayonara", "Rewink", and "Storms".

Community

Covid-19 field hospital, Chattogram

April 2020

Selected volunteer at Bangladesh's first Covid-19 field hospital in Faujdarhat: 60 beds, 25 volunteers selected from about 287 applicants. Covered by The Daily Star in its English and Bangla editions.

Saint Martin's Island cleanup

February 2020

One of eleven students who collected around 500 kg of waste from Saint Martin's Island over 24 to 26 February 2020, campaigning for regular cleanups to protect the island's biodiversity. Named and quoted in The Daily Star.

Youth platform

Through Ekarigori, work and visibility for young entrepreneurs, artists, and small businesses in Bangladesh.

Mentions

Coverage that happened, not coverage chased. Every item below was checked against the article itself.

The Daily Star, February 2020

"Young tourists collect 500 kg trash from St Martin's Island": named and quoted as one of the eleven students in the cleanup. Read the article.

The Daily Star, April 2020

"First field hospital ready to fight the coronavirus": named as a selected volunteer at the field hospital, in the English edition and the Bangla edition. Read the article.

Jagonews24, August 2021

Interview profile in Jago Jobs: the path from schoolboy businesses and freelancing to founding Ekarigori while finishing an aeronautical engineering degree in China. Read the interview.

IBTimes India

Founder profile of Ekarigori's PR and brand work. Read the profile.

Sport

Ispahani Cricket Academy

2009 to 2012

Trained and played at the academy in Chattogram.

Fatikchari Upazila Krira Songstha

Second division, 2013

Played second-division cricket for the Fatikchari upazila side.

Brothers Union

2013 to 2014

Wicket-keeper batsman.

Kollol Krira Chakra

First division, 2014

Played first-division cricket for Kollol Krira Chakra.

Durbar Cricket Academy

Mentor, 2014 to 2017

Mentored young players at the academy.