Full Stack Engineer · Tokyo, Japan

Md Biplob Hossain

15+ years building web applications, APIs, and CMS platforms

$ whoami
Md Biplob Hossain

$ focus --today
useful products
clean architecture
curious experiments

$ status
senior engineer (full stack) @ macareux digital inc.

15+

years building software

7

roles across the career timeline

13

selected projects on this page

2

public destinations for work and writing

01 — About

Build calmly. Ship thoughtfully.

I spend most of my time on systems that have to stay up: content platforms, subscription products, and the packages underneath them. At Macareux Digital I lead client delivery on Concrete CMS — core contributions, marketplace add-ons, SSO, and payment integrations for brands such as Rakuten, NTT Docomo, and Daily Portalz. Earlier I designed iOS app interfaces and built REST APIs at product studios in Tokyo and Dhaka. I like leaving a codebase easier to change than I found it.

See the work history  ↗

02 — Experience

Work history

  1. Sep 2016 – Present

    Senior Engineer (Full Stack)

    Macareux Digital Inc. · formerly concrete5 Japan Inc.

    Lead engineer for Concrete CMS client delivery: reusable packages, site upgrades, payments, SSO, and intranet apps for Japanese brands.

    • Translate client requirements into Concrete CMS packages, upgrades, and intranet applications, working with a team lead on scope and delivery.
    • Upgrade and operate Concrete CMS sites and servers on AWS, including security patches and production diagnostics.
    • Contribute to Concrete CMS core and maintain internal and marketplace packages for payments, SSO, forms, and import/export.
    • Integrate billing and identity services — Stripe, Amazon Pay, Pay.jp, Okta, SAML, and Azure AD — into editorial sites.
    • Build REST APIs and WebViews that sit behind iOS and Android clients, including healthcare and subscription products.
    • Run marketing automation with Mautic and keep internal tools such as the support desk and LDAP intranet in good health.
  2. Aug 2016 – Sep 2016

    Full Stack Web Developer

    Carpaydiem Co., Ltd

    Short contract to rebuild a used-car dealer site on FuelPHP, covering front end, back end, and SEO.

    • Rebuild the dealer catalogue and enquiry flows on FuelPHP with a Bootstrap 3 front end.
    • Fix inherited bugs and tighten page templates for crawlability and sharing.
    • Review the existing stack, then migrate templates and business logic without a long freeze.
  3. Jan 2016 – Feb 2016

    Software Engineer / Web Developer

    Beatone Inc.

    CakePHP APIs and WebViews for iOS and Android products, plus QA and a small team.

    • Turn feature specs into data models and REST endpoints for smartphone apps.
    • Implement in-app WebViews and marketing pages from wireframes.
    • Coordinate a small team through build, QA, and release for Video Downloader and OpenBag.
  4. Feb 2015 – Jan 2016

    Software Engineer / Web Developer

    AIRCAST Corp.

    Lead CakePHP engineer for consumer smartphone products: APIs, WebViews, and the public site.

    • Write SRS notes, model data, and design REST APIs consumed by iOS and Android clients.
    • Build WebViews and campaign sites that wrap those APIs.
    • Make targeted changes in a legacy Perl system without a full rewrite.
    • Maintain internal PHP tools and keep an eye on application traffic.
  5. Jan 2014 – Jan 2015

    Senior Web Developer

    SmartMux Limited

    Team lead for CakePHP APIs, admin panels, and publisher, hotel, and music products.

    • Lead a small team from spec through API, WebView, and admin UI.
    • Own data modeling and MySQL schema for new mobile products.
    • Build REST APIs and WebViews for iOS and Android, plus the PHP admin that publishers used.
    • Configure Apache, MySQL, FTP, and mail for project environments.
  6. Aug 2011 – Dec 2013

    Web Developer & Designer

    SmartMux Limited

    Designed iOS and Android app interfaces and the sites around them; also ran hosting and the office network.

    • Design GUI, iconography, and interaction flow for iOS and Android applications in Photoshop and Illustrator.
    • Build support and marketing sites for each App Store listing.
    • Manage domains, shared hosting, and the office MikroTik/Wi-Fi network.
    • Contribute Objective-C in Xcode when a screen needed more than a static design.
  7. Jul 2011 – Aug 2011

    Network Engineer

    NP Communications

    First professional role: internal PHP tools, Linux services, and CRM/network administration.

    • Build small internal web apps in PHP, HTML, and CSS.
    • Configure Apache, MySQL, FTP, and mail on Linux.
    • Administer CRM and the office networking gear.

03 — Selected work

Projects worth opening

View all projects  →
Macareux Stripe Subscription Package

Macareux Stripe Subscription

Macareux Digital Inc.

Marketplace add-on for monthly and yearly Stripe subscriptions, with gated content for Concrete CMS.

Concrete CMS PHP MySQL Stripe
biplob.me Personal

biplob.me

Personal / Independent

Self-hosted portfolio and CV CMS: one database feeds the public profile, HTML preview, and A4 PDF.

Laravel Filament Tailwind CSS MySQL
biplob.dev Personal

biplob.dev

Personal / Independent

Personal engineering journal — the writing home that sits beside the career site.

WordPress
FT
Personal

Family tree

Personal / Independent

Private family-history site for relatives to browse people, places, and stories.

Laravel Bootstrap
MB Super Shop Personal

MB Super Shop

Personal / Independent

Grocery e-commerce with inventory, POS, and a Next.js storefront on a Laravel API.

Laravel Next.js
MB Electronics Personal

MB Electronics

Personal / Independent

Electronics e-commerce with inventory, POS, and automated operational reports.

Laravel Tailwind CSS
WA
Professional

WalkJapan

Macareux Digital Inc.

Walking-tour operator site with third-party booking (Peak15) and Flywire payments on Concrete CMS.

Concrete CMS PHP MariaDB AWS Peak15 Flywire
UR
Professional

UrFund

Macareux Digital Inc.

Operations system for a fund manager: products, reporting, and staff workflows on Concrete CMS.

Concrete CMS PHP MariaDB AWS
DH
Professional

Docomo HealthCare

Macareux Digital Inc.

NTT Docomo healthcare platform: Concrete CMS packages, REST APIs, and WebViews, with DynamoDB and Lambda around the edges.

Concrete CMS PHP MySQL DynamoDB Lambda Node.js
GS
Professional

Grand Seiko

Macareux Digital Inc.

Invitation-only seminar programme: guest lists, booking, and tickets on Concrete CMS.

Concrete CMS PHP MySQL
RN
Professional

Rakuten News Network SSO

Macareux Digital Inc.

Okta SSO and directory sync for Rakuten News Network on Concrete CMS.

Concrete CMS PHP MySQL Okta
DP
Professional

Daily Portalz

Macareux Digital Inc.

Paid editorial site: Amazon Pay and Pay.jp subscriptions, gated articles, and static HTML published to S3.

Concrete CMS PHP MySQL Amazon Pay Pay.jp Riot.js AWS
SA
Professional

Smile Assist Tokyo

AIRCAST Corp.

Assistance-service product: CakePHP 3 API, WebView, and public site, delivered as project lead.

CakePHP 3 Bootstrap 3 PHP MySQL

04 — Skills

Tools I reach for

Grouped by how I actually use them — languages, stack, and the services around the work.

Languages

4 skills

English (Business) Japanese (Basic) Bangla (Native) Hindi (Basic)

Back end

11 skills

PHP Laravel Filament Concrete CMS MySQL MariaDB REST APIs Symfony CakePHP FuelPHP CodeIgniter

Front end

8 skills

HTML5 CSS3 JavaScript jQuery Ajax Bootstrap Tailwind CSS Riot.js

Cloud & DevOps

6 skills

AWS Docker Git Composer Deployer Apache

CMS & Commerce

5 skills

Concrete CMS WordPress WooCommerce OpenCart Joomla

Payments & APIs

6 skills

Stripe Amazon Pay Pay.jp Okta SAML Backlog API

05 — Writing

Longer notes live on biplob.dev

This profile is for career highlights and selected work. The writing site keeps longer notes in their own focused home.

Read biplob.dev

06 — Background

School, certifications, and the rest

Education

  • MSc in Information and Communication Engineering

    Islamic University, Kushtia, Bangladesh

    2009–2011

  • BSc in Information and Communication Engineering

    Islamic University, Kushtia, Bangladesh

    2005–2009

  • HSC in Science

    Shishukunja School & College, Jhenidah, Bangladesh

    2002–2004

  • SSC in Science

    Benipur High School, Jhenidah, Bangladesh

    2000–2002

Certifications

  • JLPT N5 Japan Foundation 2020
  • TOEIC ETS · 750 2015
  • CSS oDesk · GPA 4.88/5, Top 10% 2015
  • Twitter Bootstrap oDesk · GPA 4.10/5, Top 20% 2015

Training

  • Networking & ISP setup with Linux

  • Workshop on Computer Hardware

    CSM

Interests

Web application development Learning new technologies Reading Traveling Sports Music