Available Open to Senior & Lead mobile roles · EU

Senior mobile engineer.
Builds the app and the team.

Android · Flutter · BLE / IoT · Team Lead · CSM

8+ years shipping Android & Flutter in production. Led Truely's mobile engineering team through 8× user growth, ran a 4–5 person consultancy squad end-to-end, and owned a telecom company's entire mobile function solo. Certified Scrum Master — and still shipping code every week.

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Based Dhaka · Remote
Current Truely Pte Ltd
Status Available
Visa EU Blue Card
9:41 ● ● ● ▮
TT
Taqi Tanzil
@taqi92
Experience
8+ years mobile
Leadership
3+ years leading
Platforms
Android · Flutter
Hardware
BLE · eSIM · IoT
BUILD SUCCESSFUL
8×
User growth on a global
eSIM platform
9×
Revenue growth
in 12 months
40k
Concert attendees auth'd,
zero downtime
150+
Countries served
by shipped platform
About

Senior engineer who's already led teams.

I started as an Android developer in 2017 and never stopped shipping. Along the way I picked up the part of the job most engineers avoid — hiring, sprint facilitation, client discovery, the difficult conversations — and found I liked it as much as the code.

At Miaki I was the sole mobile engineer for a telecom VAS platform — I owned Android development end-to-end, built the release pipeline from scratch, and cut crash rates 30%. At Dhrubok I led a 4–5 person squad through full product lifecycles — discovery to Play Store — and ran the agile ceremonies as a Certified Scrum Master.

At Truely I lead mobile engineering on a global eSIM platform — hired the team's second engineer, own sprint planning and architecture, built the CI/CD pipeline that cut release cycles 40%, and bridged the Flutter app into native Android eUICC APIs. The platform grew 8× users and 9× revenue across 150+ countries during my time on it.

I'm looking for senior and lead mobile roles where building the team matters as much as building the product — with engineering management as the longer arc. Berlin, Amsterdam, remote-EU all welcome.

Taqi T.
Experience

Eight years.
One thread.

From solo Android engineer to leading mobile teams — the through-line is shipping production mobile, then teaching the team to ship it without me.

Team Lead, Mobile Engineering · Truely Pte Ltd

Mar 2025 — Present
Remote · Singapore
  • Lead Truely's mobile engineering team — hired its second engineer, own sprint planning and architecture decisions during 8× user growth and 9× revenue growth.
  • Bridged the Flutter app into native Android eUICC/LPA APIs for eSIM provisioning — resolving OEM-specific edge cases across Samsung, Pixel, OnePlus and Xiaomi.
  • Built CI/CD pipelines for automated build, test and Play Store deployment — release cycles down 40%; handle App Store submissions end-to-end (code signing, provisioning, CocoaPods).
  • Mentor engineers on architecture, Coroutines and Flutter async patterns; built the reusable UI component library and Bloc/CLEAN skeleton the squad ships on daily.

Senior Software Engineer · Potential Inc.

Feb 2024 — Feb 2025
Remote · South Korea
  • Shipped 5+ production apps across healthcare, industrial IoT and social; accelerated team delivery ~20% via a reusable Flutter/Bloc skeleton.
  • Led development of Dexulin (clinical diabetic monitoring) — Google Fit + BLE InBody device integration; MVVM + Clean, Jetpack Compose.
  • Architected TOMO (Flutter community social app) and a BLE industrial Flutter app for forklift operators.

Mobile Team Lead · Dhrubok Infotech

Feb 2021 — Jul 2023
Dhaka · 4–5 person mobile squad
  • Led a 4–5 person cross-functional mobile team through complete product lifecycles — discovery, scoping, architecture, sprint execution, QA and Play Store release.
  • Applied Certified Scrum Master practice: facilitated sprint planning, stand-ups, retrospectives and stakeholder demos.
  • Contributed to interviewing and onboarding mobile engineers; defined the code review standards still in use.
  • Sole-engineer when scope demanded — Coke Studio event auth handled 40,000 attendees with zero downtime and offline fallback.

Junior Android Developer · Miaki Media

Jul 2018 — Jan 2021
Dhaka · Sole mobile engineer
  • Owned the company's Android development end-to-end as its sole mobile engineer — processes, tooling and release pipeline for a telecom VAS platform.
  • Delivered VAS-enabled Android apps — subscription, billing, operator-grade authentication with carrier backends — while migrating the codebase Java → Kotlin.
  • Reduced crash rate 30% via systematic profiling and memory-leak analysis; shipped a flagship app from zero to Play Store on schedule.

Junior Android Developer · Binary Ventures

Sep 2017 — Jun 2018
Dhaka
  • Contributed to a ride-sharing Android app — real-time map tracking, driver-rider matching and trip management.
Selected work

Things I've actually shipped.

A small slice — the ones that taught me the most about scaling teams, shipping under deadline, and integrating hardware that doesn't lie.

eSIM · Global / 01

Truely eSIM Platform

Multi-module Android + Flutter platform serving 150+ countries. Led the architectural refactor, owned CI/CD, mentored the squad. 8× users, 9× revenue, 40% faster releases.

AndroidFluttereSIM APICI/CDMulti-module
Concert attendees
40k

Authenticated in real-time on Coke Studio with zero downtime. Offline-first fallback under live-event pressure.

Healthcare · BLE / 02

Dexulin — Clinical Diabetic Monitoring

Tech lead on a clinical-grade Android app: Google Fit integration plus BLE communication with InBody body-composition devices.

KotlinComposeBLEGoogle Fit
IoT · Industrial / 03

Forklift Operator App

BLE-driven Flutter app for industrial forklift operators. Platform channels, ruggedised UX, low-latency device pairing — where a dropped connection is a safety issue.

FlutterBLEPlatform Channels
Social / 04

TOMO Community

Flutter community/social app — feed, identity, real-time interactions. The build where the Bloc/CLEAN skeleton was first proven.

FlutterBlocFirebase
Events / 05

Coke Studio Event Auth

Sole-engineer build of the concert auth system. Offline-first fallback, ticket validation, edge-case handling under pressure.

AndroidOffline-firstQR + NFC
Telecom · VAS / 06

Miaki VAS Suite

Sole mobile engineer shipping multiple VAS Android apps for a major telecom. Crash rate reduced 30%.

AndroidKotlinPerformance
Technical foundation

The stack.

Hands-on depth in mobile, the hardware adjacent to it, and the delivery pipeline that gets it to users.

01

Android

  • Kotlin
  • Jetpack Compose
  • Coroutines & Flow
  • MVVM + Clean
  • Hilt
  • Room
  • Retrofit
  • Multi-module
02

Flutter

  • Dart
  • Bloc
  • GetX
  • Dio
  • CLEAN architecture
  • Platform Channels
  • App Store releases (signing · CocoaPods)
03

Hardware & IoT

  • BLE
  • Google Fit
  • InBody
  • eSIM / eUICC
04

Architecture

  • Multi-module
  • Offline-first
  • SOLID
  • Performance
  • Testing
05

Backend & delivery

  • REST
  • GraphQL
  • Firebase
  • GCP
  • GitHub Actions
  • Docker
06

Leadership & process

  • Certified Scrum Master
  • Sprint facilitation
  • Hiring & onboarding
  • Mentoring
  • Client-facing communication
  • Cross-functional delivery
  • Code review standards
Education & credentials

The paper trail.

2017 — 2019

M.Sc., Information Technology

Jahangirnagar University · Savar, BD
2013 — 2017

B.Sc., Computer Science & Engineering

University of Asia Pacific · Dhaka, BD
2022

Certified Scrum Master

Scrum Alliance

Other certifications

  • Google Code Jam — Android Track
  • Frontend Developer (Flutter) — Mangtas
  • National Mobile App Developer Training
  • Ministry of ICT, Bangladesh
Contact

Hiring a senior mobile engineer
who can also
lead the team?

t.tanzil92@gmail.com ↗
LinkedIn GitHub +880 1937 970970