Md. Latiful Kabir

Software Engineer

system online Open to new opportunities

MD · LATIFUL · KABIR

I build software
that ships.

Full-stack engineer across the JavaScript & Python ecosystems — React, Next.js, Node and FastAPI. I build products that actually ship: auth systems, AI tooling, and a fleet of live apps & public APIs.

Software Engineer Dhaka, BD
Résumé GitHub LinkedIn Contact
0

apps deployed

live on vercel

0

public apis

openapi · no-key

90K +

users reached

affpilot · global

FlowGenX

current post

gen-ai engineer

deploy log
▸ Doetra Photo Restorer deployed · OK ▸ Doetra Bg Remover deployed · OK ▸ Canvo deployed · OK ▸ Parallax deployed · OK ▸ Orrery deployed · OK ▸ Islamic Prayer Times deployed · OK ▸ Embiggen deployed · OK ▸ Awqat deployed · OK ▸ Swelter deployed · OK ▸ Declino deployed · OK ▸ Tessera deployed · OK ▸ Verdant deployed · OK ▸ Vitals deployed · OK ▸ Astraea deployed · OK ▸ Rave deployed · OK ▸ Horizon deployed · OK ▸ Miqaat deployed · OK ▸ Hueology deployed · OK ▸ Doetra Photo Restorer deployed · OK ▸ Doetra Bg Remover deployed · OK ▸ Canvo deployed · OK ▸ Parallax deployed · OK ▸ Orrery deployed · OK ▸ Islamic Prayer Times deployed · OK ▸ Embiggen deployed · OK ▸ Awqat deployed · OK ▸ Swelter deployed · OK ▸ Declino deployed · OK ▸ Tessera deployed · OK ▸ Verdant deployed · OK ▸ Vitals deployed · OK ▸ Astraea deployed · OK ▸ Rave deployed · OK ▸ Horizon deployed · OK ▸ Miqaat deployed · OK ▸ Hueology deployed · OK
01

Terminal

type a command · it's real
visitor@latiful.kabir — shell
try →
visitor@latiful.kabir:~$
02

Operator Profile

dossier
// readme operator.md

I'm a full-stack engineer working across the JavaScript and Python ecosystems — React, Next.js and TypeScript on the front end, Node.js or FastAPI on the back end, whichever the problem calls for. I care most about the parts that are easy to get wrong: authentication (OAuth 2.0 and JWT), data modelling across PostgreSQL, MongoDB and MySQL through ORMs like Prisma and Drizzle, and the messy glue of third-party integrations. I've shipped products used by tens of thousands of people, and lately I've been building AI-powered tools end to end. I started out in C and Java, grew into the web stack, and I'm picking up Rust and Go on the side. Mostly I just like turning fuzzy problems into clean, practical software that ships.

$ readme.md · 124 words plain text
spec sheet id · public
based in
Dhaka, Bangladesh
focus
Full-stack Auth AI tooling
languages
Bangla Native speaker English Intermediate
interests
Open Source Development Cloud Architecture Emerging Technologies
@Saimon8420 open ↗
03

Deployment History

career log

  1. Dec 2025

    ▸ present

    10 mo

    Software Engineer - Gen AI @ FlowGenX AI

    San Francisco, California, United States Remote

    FlowGenX AI is an agentic AI platform designed for enterprise integration and automation. The platform enables businesses to deploy intelligent AI agents that orchestrate complex workflows and integrate with various systems, featuring multi-agent coordination, universal API connectivity, knowledge base management, and enterprise-grade security.

    • Building and developing connectors for third-party integrations including Google Sheets, Google Ads, Meta Ads, PayPal, Dropbox, Google Pub/Sub, Airtable, and more to enable seamless enterprise automation workflows.
    • Maintaining and enhancing the core platform built with Next.js, ensuring stability, performance, and scalability.
    • Identifying and resolving bugs and issues across the platform to improve reliability and user experience.
    • Implementing new features and enhancements to expand platform capabilities and meet evolving business requirements.
    Next.js

  2. Mar 2025

    — Dec 2025

    10 mo

    Full-Stack Developer (Front-End Focused) @ Affpilot AI

    DOHS, Mirpur-12, Dhaka, Bangladesh Onsite

    Affpilot AI is an AI-powered content creation tool designed for bloggers and marketers to automate the generation of SEO-optimized articles, product reviews, and other content. Key features include bulk article generation (up to 1,000 articles in one click), auto-posting capabilities for WordPress and Blogger, and advanced SEO tools for keyword research and grouping. The platform offers specialized generators for various content types, such as Amazon review articles, biography articles, comparison articles, and informational articles. It also provides tools for content optimization like paragraph rewriting, sentence correction, and FAQ generation.

    • Spearheading development of the Affpilot AI platform — an AI-powered content automation system with over 90,000+ global users.
    • Leading front-end initiatives using React.js, TypeScript, and Tailwind CSS, ensuring seamless scalability and performance.
    • Built interactive dashboards for bulk content generation, SEO automation, and one-click publishing to WordPress/Blogger.
    • Integrated RESTful APIs for content generation, keyword analysis, and real-time job tracking.
    • Collaborated cross-functionally for the AppSumo global launch, enhancing onboarding flow and multilingual UI/UX.
    • Improved code modularity and component reusability, reducing front-end code redundancy by 25%.
    TypeScriptReact.jsTailwind CSSREST

  3. Jun 2024

    — Feb 2025

    9 mo

    Software Developer @ AdsPillar (PlanPost AI)

    Begum Rokeya Sarani, Mirpur, Dhaka, Bangladesh Onsite

    PlanPost AI is an AI marketing assistant that helps users create content, ads, and manage SEO. It offers features such as generating 30 days of social media posts, ad copy, graphics, and videos in seconds. Key functionalities include a bulk social media post generator, a free online graphic design tool, an AI ad creative generator, and an AI agent chatbot for customer engagement. The platform aims to save time, reduce costs, and help businesses grow faster by streamlining content creation and ad campaign management.

    • Contributed to PlanPost AI, an AI-driven social media content creation and scheduling platform.
    • Developed backend APIs with Python (FastAPI) and crafted responsive UIs using React.js.
    • Designed and launched Canvas, a manual graphics design tool inspired by Figma/Canva.
    • Integrated AI-assisted media rendering workflows and implemented scalable client-server communication models.
    • Enhanced backend performance, reducing API latency by 40%.
    React.jsPythonFastAPIFigma

  4. Feb 2024

    — May 2024

    4 mo

    Software Developer Intern @ AdsPillar

    Begum Rokeya Sarani, Mirpur, Dhaka, Bangladesh Onsite

    Supported full-stack development of internal projects using React.js, Node.js, and Python. Participated in Agile sprints, performed debugging, and contributed to QA testing pipelines. Assisted in integrating third-party APIs and improving code efficiency through refactoring.

    • Supported full-stack development of internal projects using React.js, Node.js, and Python.
    • Participated in Agile sprints, performed debugging, and contributed to QA testing pipelines.
    • Assisted in integrating third-party APIs and improving code efficiency through refactoring.
    React.jsPythonNode.jsAgile
04

Flagship Systems

selected builds
flagship · operational

Doetra — AI SEO Article Generator

Full-stack AI SaaS, built end-to-end as a solo developer, that generates SEO-optimized product review and informational articles with auto-generated images and one-click WordPress publishing. Live app at app.doetra.com with a Next.js marketing site at doetra.com.

Five article generation flows

product Roundup reviews, Info (educational) articles, Outline-to-Article, plus bulk Roundup and bulk Info batch jobs with queue-based async processing and live status tracking.

AI text generation via

AI text generation via OpenAI gpt-4o-mini; AI image generation via Together AI's Flux Schnell (black-forest-labs/FLUX.1-schnell) for featured images and up to 3 inline section images per article.

Live Amazon Creators API

Live Amazon Creators API integration across 31 search indexes with in-stock filtering and per-site Amazon affiliate tag management.

Full WordPress integration supporting

Full WordPress integration supporting publish, schedule, and draft statuses, categories, featured images, and inline image uploads via the /wp-json/wp/v2 REST API. WordPress credentials encrypted at rest with AES-256-GCM.

  • Dual authentication: Google OAuth (@react-oauth/google on frontend, google-auth-library on backend) plus email/password with verification codes and password reset; JWT access tokens (15m) + refresh tokens (7d) in httpOnly cookies.
  • Abuse protection: Fingerprint.js device fingerprinting on signup, Redis-backed per-endpoint rate limiting (login, register, generate, bulk), Helmet security headers, and a CORS allow-list.
  • Frontend: React 19 + TypeScript + Vite + Redux Toolkit + Tailwind + Radix UI + Tiptap 3.20 rich-text editor with an AI-powered internal linking service between articles.
  • Admin panel covering user management, article moderation, API usage audit, bulk job monitoring, plan and credit-pack CRUD, an internal blog CMS, and an email campaign builder with reusable templates, variable substitution, and per-plan user targeting.
  • Billing via Stripe: subscription plans and one-time credit packs with signed webhooks, and configurable per-article-type credit costs (roundup, info, outline, per extra image) editable live from the admin dashboard.
  • Transactional email via Nodemailer + Hostinger SMTP for signup verification, password reset, and Stripe-webhook-triggered order confirmations.
  • Backend: Node.js + Express + MongoDB/Mongoose + Redis caching (24-hour TTL on Amazon search results), running in PM2 cluster mode (2 instances, 1 GB max memory) with Vercel-compatible serverless detection.
Launch
app.doetra.com Screenshot of Doetra — AI SEO Article Generator
Parallax — Your Sky, Right Now open ↗

A live sky-visualization web app that consumes my own Horizon (Sun & Moon) and Orrery (planetary) APIs to show exactly what's above you at this moment — read back in plain language, with a full English ⇄ Bengali interface.

  • Sky Compass: a top-down radar that tracks the Sun by day and the phase-accurate Moon by night — and the next body to rise when both are down — plotting real altitude/azimuth and refreshing live.
  • Plain-language hero lede generated in code from live data (e.g. "The Sun hangs 72° over the east-southeast, setting in 7h 49m…").
  • Two honest views with a toggle: a geocentric "from Earth" sky dial and a heliocentric "from above" orrery, at real ecliptic longitudes.
  • Full internationalization (English ⇄ বাংলা) via a hand-rolled, type-safe i18n layer — Bengali numerals and per-language sentence generation, not word-for-word swaps.
  • Detail cards (Sun, the full twilight set, Moon), upcoming moon phases, and a responsive monthly almanac (desktop grid + a mobile daylight-ribbon agenda).
  • Built with Vite + React 19 + TypeScript (strict) + Tailwind, backed by 100+ Vitest tests; consumes real-data REST APIs I built and deployed.
live
al-quran-client-site src ↗

A web application for reading the Quran, with features like advanced search, multiple translations, audio recitations, and customizable themes.

  • Comprehensive Browsing: Navigate the Quran by Surah, Juz, Hizb, Manzil, Ruku, Sajda, and Page.
  • Advanced Search: Quickly find verses with a powerful and intuitive search functionality.
  • Multiple Translations: Compare and understand verses with multiple translations side-by-side.
  • Audio Recitations: Listen to beautiful recitations of each verse.
  • Customizable Themes: Switch between light and dark modes for a comfortable reading experience.
  • Responsive Design: Enjoy a seamless experience on any device, from desktops to mobile phones.
  • Elegant UI: A clean and modern user interface built with Shadcn/ui and Tailwind CSS.
  • State Management: Efficient and predictable state management with Redux Toolkit.
github
hadith_explorer src ↗

A modern, fully responsive web application for exploring authentic Islamic Hadiths in Arabic, English, and Urdu.

  • Access 9 major Hadith collections including Sahih Bukhari, Sahih Muslim, Jami' Al-Tirmidhi, Sunan Abu Dawood, Sunan Ibn-e-Majah, Sunan An-Nasa'i, Mishkat Al-Masabih, Musnad Ahmad, and Al-Silsila Sahiha.
  • Search Hadiths by text in English, Arabic, or Urdu with real-time results and pagination.
  • Filter by book collection and authenticity status (Sahih, Hasan, Da'eef).
  • Browse chapters within each book with multilingual chapter titles.
  • View complete Hadith texts and narrator chains in all supported languages with RTL support for Arabic and Urdu.
  • Fully Responsive Design: Optimized for mobile, tablet, and desktop with touch-friendly navigation.
  • Light & Dark Mode: Seamless theme switching with system preference detection and persistent user choice.
  • Clean & Elegant UI: Built with shadcn/ui, Tailwind CSS, and smooth transitions for an enhanced user experience.
github
islamic-prayer-times src ↗

A comprehensive web application providing accurate Islamic prayer times, fasting schedules, Qibla direction, and Hijri calendar conversion for Muslims worldwide.

  • Accurate prayer time calculations for Fajr, Sunrise, Dhuhr, Asr, Maghrib, and Isha with real-time countdown and progress indicators, supporting 12 different calculation methods and Shafi/Hanafi madhab options.
  • Fasting schedule with Sahur and Iftar times, countdown timers, fasting duration calculation, and Ramadan awareness features.
  • Qibla direction finder with precise calculation based on user location, interactive compass, and distance to Makkah.
  • Hijri calendar with Gregorian to Hijri date conversion, Arabic/English display, and White Days (Ayyam Al-Beed) tracker.
  • Privacy-focused design with all calculations performed locally on the device — no data sent to external servers.
  • Built with React 18, TypeScript, Vite, Tailwind CSS, Zustand, and Radix UI with Dark/Light/System theme support.
github
Canvo — Browser Design Studio open ↗

A fast, free, browser-based graphic-design studio (a mini-Canva) built with React 18 and Fabric.js — no login, no download. Make social posts, thumbnails, slides, flyers and logos, then export up to 5K. Live at canvo-dev.vercel.app.

  • 115+ curated shapes across Custom (speech bubbles, badges, banners, arrows, organic blobs), Plain and Rounded panels, plus 300+ searchable Lucide icons and 49 Google Fonts.
  • Insert any image and clip it into a shape or into editable text; background/overlay images with a 5 MB limit and live thumbnail previews; high-resolution PNG export up to 5K.
  • Full editor: 15 artboard presets, smart 8px snapping guides, 50-state undo/redo, layers, grouping, alignment, and stroke / fill / shadow / opacity controls on a Fabric.js canvas.
  • Animated marketing landing page (React Router) with a light/dark theme toggle; premium coral→amber dark UI set in Bricolage Grotesque, Figtree and JetBrains Mono.
  • Mobile-first and fully responsive — the editor goes canvas-first on phones with dismissible overlay panels and a scrollable bottom action bar; zoom clamped to 50–200%.
live
islamic_card_designer src ↗

Browser-based design tool for creating customizable Islamic greeting cards, inspired by Figma and Canva.

  • 80+ pre-built templates for Eid ul-Fitr, Eid ul-Adha, Ramadan, Milad-un-Nabi, and other Islamic occasions, organized by style (Minimal, Floral, Geometric, Calligraphy).
  • Fabric.js-powered canvas editor with 15 aspect ratio presets, smart snapping guides, 10%–500% zoom, and 50-state undo/redo.
  • 60+ geometric shapes, 300+ Lucide icons with real-time search, and a 20+ category asset library (mosques, lanterns, patterns, calligraphy).
  • Rich text editing with 49 Google Fonts via WebFontLoader; image filters including sepia, blur, grayscale, and duotone.
  • High-resolution export from HD (1280×720) up to 5K (5120×2880) in PNG, JPEG, and WebP.
  • Built with React 18 + Context API + Tailwind CSS + shadcn/ui, optimized with lazy-loaded panels, virtualized asset grids, and code-split bundles.
github
05

Backend APIs

10 services · online

10 free, public, no-key REST APIs — documented with OpenAPI, deployed on Vercel.

Free public astronomy API — planetary positions, rise/set & transit times, twilight, Moon phases, solar & lunar eclipse prediction (global + local visibility), equinoxes & solstices, plus conjunctions & greatest elongations. Pure-computation engine, no data feeds.

ExpressTypeScriptOpenAPIastronomy-engine
Docs Try in console

Free public thermal-comfort & heat-safety API — Heat Index, Wind Chill, Humidex, Dew Point, Wet-Bulb, Apparent Temperature, WBGT and UTCI with safety categories & plain-English guidance for any weather reading, in metric or imperial. Pure-computation engine, no API key.

ExpressTypeScriptOpenAPIUTCI
Docs

Free public magnetic-declination & geomagnetic-field API — World Magnetic Model declination, inclination, field intensity & components, secular drift, grid variation, and true↔magnetic bearing conversions for any location & date. Pure-computation engine, no API key.

ExpressTypeScriptOpenAPIgeomagnetism
Docs

Free public geospatial-geometry API — measure area/length/centroid, geodesic distance & bearing, buffers, polygon overlay (union/intersect/difference), spatial predicates, convex & concave hulls, simplification, and TIN/Voronoi/isoline/IDW interpolation. Send GeoJSON, get GeoJSON back; powered by Turf.js, no API key.

ExpressTypeScriptOpenAPITurf.js
Docs

Free public carbon-footprint & emissions API — CO₂e for driving, flights & public transport, electricity by national grid, household fuels, diet & food, and freight shipping, plus real-world equivalencies. Bundled published emission factors (DEFRA, IEA, Poore & Nemecek); every response carries a not-a-certified-audit disclaimer.

ExpressTypeScriptOpenAPIzod
Docs

Free public clinical-calculators & medical-scores API — BMI/BSA, kidney function (eGFR, creatinine clearance), ASCVD cardiac risk, electrolyte & acid-base labs, GCS & APGAR scores, obstetric dating, and weight/BSA drug dosing. Validated published formulas; every response carries a not-medical-advice disclaimer.

ExpressTypeScriptOpenAPIzod
Docs

Free public astrology API — natal birth charts, planetary positions, houses, aspects, transits, synastry, composite & solar-return charts, all with built-in interpretations. Pure-computation engine, no data feeds.

ExpressTypeScriptOpenAPIastronomy-engine
Docs

Free public Human Design API — full BodyGraph (Type, Authority, Profile, Centers, Channels, the 64 Gates, Definition & Incarnation Cross) from birth data, plus two-person connection charts, live transits and interpretations.

ExpressTypeScriptOpenAPIastronomy-engine
Docs

Free public Sun & Moon REST API — sunrise/sunset, the full twilight set, golden & blue hour, solar position, day length, plus moonrise/set, illumination, phase and upcoming phase forecasts.

ExpressTypeScriptOpenAPISunCalc
Docs Try in console

Free public Islamic prayer-times & fasting API — prayer & fasting schedule, Hijri calendar, Qibla direction, makruh windows and Islamic event countdowns.

ExpressTypeScriptOpenAPIadhan
Docs Try in console
06

The Fleet

47 apps · auto-synced

47 apps deployed on Vercel — this grid rebuilds itself from my account, so new launches appear on their own.

Screenshot of Doetra Photo Restorerlive
Doetra Photo RestorerUtilities
Screenshot of Doetra Bg Removerlive
Doetra Bg RemoverUtilities
Screenshot of Canvolive
Canvo

Browser design studio — a free, no-login Canva-style editor: 100 ready-made templates, 211 shapes, millions of free stock photos, 300+ icons and 49 fonts on an infinite canvas, with smart guides, align & distribute and export up to 5K.

Design & makers
Screenshot of Parallaxlive
Parallax

Your sky, right now — a live radar that tracks the Sun by day and the phase-accurate Moon by night, reads the sky back in plain language, and toggles between the geocentric sky and a heliocentric orrery. Consumes my Horizon + Orrery APIs; fully English & বাংলা.

Sky
Screenshot of Islamic Prayer Timeslive
Islamic Prayer Times

Prayer Times — a client-side Islamic prayer & fasting schedule (the app the Miqaat API was derived from).

Islamic
Screenshot of Embiggenlive
Embiggen

Image upscaler — sharpen and enlarge photos 2×/4× with in-browser Real-ESRGAN AI, no upload.

AI tools
Screenshot of Awqatlive
Awqat

Prayer & fasting timetable studio — turn the Miqaat API into shareable daily cards, monthly tables and full-year posters in English, Bengali & Arabic; export PNG or PDF.

Islamic
Screenshot of Hueologylive
Hueology

Color-palette studio — pull palettes from a photo, build harmonies, check WCAG contrast, export CSS/Tailwind/SCSS/JSON/SVG/PNG.

Design & makers
Screenshot of Crosslylive
Crossly

Crossword maker — type clue/answer pairs and it interlocks them into a real numbered crossword with a printable puzzle + answer key.

Design & makers
07

Live Ops

real-time · client-side
systems status pinging 10 services…
  • Miqaat Prayer times & fasting ····
  • Horizon Sun & Moon ····
  • Orrery Ephemeris / astronomy ····
  • Astraea Astrology / natal charts ····
  • Rave Human Design ····
  • Vitals Clinical calculators ····
  • Verdant Carbon footprint ····
  • Tessera Geospatial geometry ····
  • Declino Geomagnetic field ····
  • Swelter Thermal comfort ····
interactive · run it live no key required
GET —
idle 
// pick an endpoint and hit Run — the live JSON shows up here.

also live · 7 more free APIs

astraea rave vitals verdant tessera declino swelter
where & when · your location · qibla also live · miqaat api
live · prayer times Miqaat API

location

locating…

hijri

—

qibla

—

next prayer

— --:--:--

—

Fajr

··:··

Sunrise

··:··

Dhuhr

··:··

Asr

··:··

Maghrib

··:··

Isha

··:··

Sehri ends

··:··

Iftar

··:··

Fetching your local schedule…

mission map

qibla — · — km to Makkah

Dhaka · home Makkah
home Makkah you
08

Source Activity

@Saimon8420
contribution signal @Saimon8420 ↗
miqaat Free public Islamic prayer times, fasting, Hijri calendar & Qibla REST API. Express + TypeScript on Vercel, powered by adhan & hijri-converter. JavaScript islamic-prayer-times Comprehensive Islamic companion app featuring accurate prayer time calculations, Sahur/Iftar countdowns, Hijri calendar, Qibla direction, and support for 12+ calculation methods. TypeScript 1 al-quran-client-site A modern, responsive, and feature-rich web application for reading and exploring the Holy Quran. TypeScript 1 hadith_explorer Hadith Explorer is a modern, open-source web application designed to provide easy, intuitive, and multilingual access to authentic Islamic Hadith collections. Built with React 18, TypeScript, Vite, Tailwind CSS, and shadcn/ui, and powered by Redux Toolkit (RTK Query) for efficient data fetching. TypeScript islamic_card_designer A browser-based design tool for creating beautiful, customizable Islamic greeting cards. Browse 80+ pre-built templates for Eid, Ramadan, Jumma, and other Islamic occasions — or build your own from scratch with a full-featured canvas editor, Islamic design elements, multi-language greetings, and high-resolution export up to 5K. JavaScript awqat Design studio that turns the Miqaat API into beautiful, shareable prayer & fasting timetables — daily cards, monthly tables and full-year posters in English, Bengali and Arabic. TypeScript
view all repositories
09

Systems / Stack

56 technologies

Expert

9 technologies

  • JavaScript
  • TypeScript
  • React.js
  • Next.js
  • HTML5
  • CSS3
  • Tailwind CSS
  • Git
  • GitHub

Advanced

18 technologies

  • Python
  • Shadcn UI
  • Magic UI
  • Astro
  • Redux Toolkit
  • React Query
  • Zustand
  • Context API
  • Node.js
  • Express.js
  • FastAPI
  • PostgreSQL
  • MongoDB
  • Prisma
  • JWT
  • OAuth 2.0
  • Vercel
  • Postman

Proficient

22 technologies

  • Angular
  • Vue.js
  • Material UI
  • Chakra UI
  • DaisyUI
  • MySQL
  • Supabase
  • Drizzle ORM
  • Mongoose
  • ClerkAuth
  • Docker
  • GitHub Actions
  • Railway
  • Render
  • Firebase
  • Jest
  • React Testing Library
  • Figma
  • Notion
  • VS Code
  • Trello
  • Slack

Familiar

7 technologies

  • Java
  • C
  • Rust
  • Go
  • Bun.js
  • Elysia.js
  • Passport.js
10

Credentials

education
B.Sc

2016 — 2021

Daffodil International University

B.Sc. in Computer Science and Engineering (CSE)

Computer Science and Engineering

HSC

2013 — 2015

BAF Shaheen College, Tejgaon

Higher Secondary Certificate (Science)

Science

SSC

2011 — 2013

Jan-E-Alam Sarker High School

Secondary School Certificate (Science)

Science