Mobile Application Developer with 4+ years of experience building Android and Flutter apps across FieldForce, HealthTech, EdTech, EnterpriseTech, AgriTech and FinTech platforms. Skilled in Kotlin, Java, Jetpack Compose, Flutter, REST APIs and offline-first architecture. Experienced in delivering scalable features, modernizing legacy systems, improving app performance, and shipping 18 production-ready apps to Google Play and the App Store, used by thousands of users.
I build mobile products that hold up in the real world
Most of my work ships to field staff, health workers, and everyday users on unreliable networks. That shapes how I build: offline-first, resilient, and measured by outcomes, not screens.
HealthTech
Nationwide telehealth and maternal-care apps: real-time video consultations over WebRTC and Agora tuned for rural, low-network zones, plus pre-pregnancy, pregnancy and postnatal modules that lift retention and daily engagement.
FinTech
Microfinance and banking flows at scale: real-time loan processing, instant transaction alerts, reconciliation, and fraud reduction.
EnterpriseTech
Enterprise sales-force and PSO platforms: doctor-visit tracking, portfolio and RX tools, automated TA/DA, and reporting dashboards that raise field productivity and visibility.
FieldForce
Offline-first field apps with sync-on-connectivity, GPS tracking, and multilingual UIs; deployed across countries, including survey operations in Uganda.
AgriTech
Offline-first tools for agricultural officers with reliable sync-on-connectivity and consistent field data capture, cutting manual recording effort by a third.
EdTech
Corporate learning-and-development platforms with automated assessments, real-time progress dashboards, and interactive courses that raise completion rates.
Experience
4+ years shipping production mobile apps
English · ProficientBangla · Native
Impact
Key achievements
Concrete engineering outcomes from production apps used by thousands of people.
>99%
stability
Stable Production Releases
Shipped production apps to Google Play and the App Store with 99%+ crash-free users, monitored via Firebase Crashlytics.
50-60%
smaller APK
App Size Compression
Reduced APK size by 50-60% through ProGuard/R8, asset optimization, and module restructuring.
-12%
crash rate
Crash Rate Reduction
Lowered crash rates by 12% by migrating legacy Java modules to Kotlin and modernizing architecture.
+30%
faster launch
App Load Time Optimization
Improved launch speed by 30% with lazy-loading, optimized queries, and refined initialization flows.
+35%
data consistency
Offline-First System
Built a robust offline-first architecture, improving field data consistency by 35%.
-40%
sync failures
Background Sync Efficiency
Reduced sync failures by 40%, ensuring smoother scheduled updates.
Toolkit
Skills & technologies
The stack I reach for across Android and Flutter work: from UI down to sync and delivery.
Mobile Frameworks
Android (Jetpack Compose)
Android (XML)
Flutter
Kotlin Multiplatform (KMP)
Compose Multiplatform (CMP)
Languages
Kotlin
Java
Dart
Architecture
MVVM
Clean Architecture
SOLID Principles
Libraries
Hilt
Koin
Coroutines
Retrofit
Ktor
Room DB
GetX
APIs & Backend
REST APIs
Secure API Integration
Offline-First Data Sync
Cloud & Real-Time
WebRTC
Agora SDK
Push Notifications
Firebase (Analytics, FCM, Crashlytics)
Maps & Location
GPS / Location Services
Google Maps SDK
Geotagging
DevOps & Tools
Git
GitHub
GitHub Actions
Xcode Cloud (CI/CD)
TestFlight
Google Play Console
App Store Connect
Android Studio
Postman
Process
Agile
Scrum
Code Reviews
Redmine
Other
Material Design
Performance Optimization
Modular UI Components
Crash Reduction
Kotlin Migration
Experience
Where I've worked
Progression, ownership, and the outcomes I delivered at each step.
Shipped production-ready Flutter and Android modules to Google Play and the App Store, ensuring stable releases and rapid feature rollout, using Xcode Cloud CI/CD and TestFlight for iOS releases.
Delivered Flutter enterprise apps for Prime Bank, Eastern Bank, Dhaka Bank, NRB Bank and IDLC Finance, used daily by their employees.
Improved app performance, stability, and architecture through optimized state management, caching, and reusable modular components shared across the company's apps.
Enhanced background sync reliability, reducing sync failures by 40% across multiple apps.
Refactored and modernized legacy modules, improving maintainability and code quality for long-term scalability.
Cut load time and enhanced responsiveness by optimizing API sequencing, reducing heavy initialization, and restructuring database access.
Collaborated in Agile teams to deliver features with end-to-end ownership, from REST API integration through production release.
Jr. Software Engineer
Mar 2023 - Jan 2025
Built and maintained native Android apps using Kotlin, XML, MVVM, and Jetpack components, including field and telehealth apps that processed 455K+ loan proposals and 5.7K+ video consultations.
Contributed to module development, bug fixing, and performance tuning across production apps.
Optimized Room (local SQLite database) queries and offline sync for faster reads and smoother offline use, enabling up to 50% faster data submission in low-network areas.
Migrated legacy Java modules to modern Kotlin, cutting crash rates by 12% and improving stability.
Resolved bottlenecks in key user journeys by reworking the underlying business logic, delivering a faster, smoother experience.
Clients
Brands behind the apps
The companies whose apps I have built and shipped.
Work
Selected projects
Shipped apps across banking, healthcare, NGO and field operations, built to speed up workflows, cut manual work and lift engagement. Tap a project for the full breakdown.
Led end-to-end development of the app, reaching 350K+ downloads and increasing user engagement by 30% through personalized content. Built its pre-pregnancy, pregnancy and post-pregnancy modules, covering ovulation tracking, week-by-week pregnancy and baby growth, doctor-guideline videos, vaccination schedules and care checklists.
+30%
engagement
350K+
total downloads
FlutterDartGetXREST APIsFirebase AnalyticsFCM+1 more
Built Eastern Bank's enterprise performance platform on Android and iOS, with API-driven dynamic customer-visit forms, PTP collection, real-time KPI dashboards, and employee location and route tracking.
100% API-Driven
dynamic customer visit form
2 Platforms
location tracking
6+
business capabilities
FlutterDartGetXREST APIsFCMGPS / Location Services+3 more
Digitized microfinance field operations for 3K+ field officers across 290+ branches, processing 455K+ loan proposals and 437K+ loans disbursed, with credit scoring, lead-to-admission pipelines, and legal case management.
Built a fully offline-first field app for agricultural officers with sync-on-connectivity, cutting manual recording effort by 35% and ensuring consistent field data capture.
Enhanced the microfinance passbook app, cutting reconciliation workload by 70% and irregularities by 55% through instant transaction notifications, improving operational efficiency and security, with a 15% increase in user trust.
Built IDLC Finance's official Learning & Development app, giving every employee on-demand access to assigned trainings, interactive video courses, and knowledge assessments with certifications. A personalized course catalog, real-time progress tracking, and deadline reminders help new joiners and seasoned staff upskill efficiently and contribute to a high-performance culture.
Modernized a PSO platform with Jetpack Compose, reducing sync issues by 40% and enhancing field operations with doctor-visit tracking, portfolio tools, and RX submission - boosting sales productivity and healthcare-professional engagement.
Delivered core modules for a nationwide telehealth system across Doctor, Patient, and HealthWorker apps serving 2K+ users, enabling 5.7K+ video consultations. Improved stability with a 12% crash reduction through Kotlin-based refactoring.
Built health-worker workflows across Doctor and HealthWorker apps optimized for rural low-network conditions, achieving 50% faster data submission and improving patient coverage across remote zones.
Delivered a precise field-automation platform with 10K+ monthly reports, automated TA/DA for 200+ field employees, and background location tracking with route mapping - boosting field visibility and operational efficiency.
10K+
reports / month
200+
field employees
KotlinJetpack ComposeHiltRoomGPS / Location ServicesGoogle Maps SDK+1 more
Enhanced a leading pregnancy-tracker app by increasing retention by 28% and boosting DAU by 30% through personalized notifications and optimized caching flows.
+28%
retention
+30%
daily active users
KotlinJetpack ComposeMVVMHiltRoomPush Notifications+1 more
Improved survey efficiency by 40% with 100% offline data capture and secure data pipelines, while enabling cross-country deployment for SAJIDA Foundation, including usage in Uganda.
+40%
survey efficiency
100%
offline capture
KotlinJetpack ComposeOffline-FirstMultilingual UIRoomHilt+1 more
Developed Renata PLC's L&D platform, cutting reporting effort by 25% and increasing course-completion rates with automated assessments, dashboards, real-time tracking, and interactive content.
Built a field sales and distribution app for Golden Harvest's FMCG operations, equipping field representatives with mobile order capture, GPS route and location tracking, and real-time sales reporting. Managers gain live visibility into field coverage and performance, improving accountability and operational efficiency across the distribution network.
1.2K+
field reps
33K+
orders / month
FlutterDartGetXREST APIsFCMGPS / Location Services+1 more
Built a secure, intelligent workforce performance-management platform for modern enterprises and operational teams. Employees, managers, and administrators can monitor KPIs, track individual and team performance, and analyze productivity through real-time insight dashboards, with role-based access control and enterprise-grade security supporting accurate, transparent, data-driven decisions.
Built a clinical scheduling app for a Psychological Health & Wellness Care (PHWC) practice, letting staff manage appointments, patient calendars, and clinician availability in one place. Automated reminders reduce no-shows and keep sessions on track, while secure API integration keeps patient scheduling data reliable and up to date across the team.
Built NRB Bank's official Relationship Management platform, giving branch staff, managers, and executives a real-time view of performance against daily, monthly, and yearly targets. Relationship managers track KPIs across Total Deposit Net Growth (CASA & TD), Asset Growth & Disbursement, MSME, and Credit Cards, climb staff-, branch-, and pan-bank leaderboards, drill into position reports, and complete assigned learning modules, turning scattered performance data into a single, data-driven RM cockpit.
Built Prime Bank PLC's official Learning Management System, delivering self-paced video courses, quizzes and assessments, and downloadable digital certificates to 3.5K+ employees on Android and iOS. Automated assessments and certification cut training-admin effort by 70%, while a personalized dashboard with progress tracking, performance rankings, and deadline reminders keeps staff on track.
