Mobile Application Developer with 4+ years of experience building Android and Flutter apps across HealthTech, FinTech, EnterpriseTech, FieldForce, AgriTech and EdTech platforms. Skilled in Kotlin, Jetpack Compose, Flutter, REST APIs and offline-first architecture. I deliver scalable features, modernize legacy systems, improve app performance, and ship production-ready apps 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 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
Successful App Launches
Released multiple production apps with >99% stability, fast approval cycles, and smooth onboarding.
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% via Kotlin migration, refactoring, and modernized 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
Enhanced sync reliability, reducing failures by 40% and 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
KMP
Languages
Kotlin
Java
Dart
Architecture
MVVM
Clean Architecture
SOLID Principles
Libraries & Tools
Hilt
Coroutines
Retrofit
Room DB
GetX
Firebase (Analytics, FCM)
APIs & Backend
REST APIs
Secure API Integration
Offline-First Data Sync
Cloud & Real-Time
WebRTC
Agora SDK
Push Notifications
Firebase Services
Maps & Location
GPS / Location Services
Maps SDK
Geotagging
DevOps & Tools
Git
GitHub
Android Studio
Postman
Other
Performance Optimization
Modular UI Components
Crash Reduction
Kotlin Migration
Experience
Where I've worked
Progression, ownership, and the outcomes I delivered at each step.
Increased user engagement by 30% through personalized content, and developed core pregnancy and postnatal modules with weekly doctor-guideline videos supporting mothers with practical health advice.
Developed Eastern Bank Limited’s enterprise performance monitoring platform, implementing API-driven dynamic Customer Visit forms, PTP Collection, real-time KPI dashboards, Android/iOS location tracking, employee route visualization, performance alerts and client visit tracking to support data-driven decision making across teams, while centralizing customer follow-ups, Knowledge Center, Speak-up, and Legal Case Studies.
Improved microfinance operations by enabling real-time loan processing and field reporting, driving 155K+ loan proposals and 144K disbursements in six months, with improved guarantor transparency, faster workflows, and reduced fraud.
Developed a fully offline-first field app for agricultural officers with seamless sync-on-connectivity. Reduced manual recording efforts by 35% and ensured consistent field data capture.
Enhanced operational efficiency and security with instant transaction notifications, cutting reconciliation workload by 70%, reducing irregularities by 55%, and boosting user trust by 15%.
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.
Enhanced a leading pregnancy-tracker app by increasing retention by 28% and boosting DAU by 30% through personalized notifications and optimized caching flows.
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.
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.
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.
