Java • Spring Boot • Flutter • Angular • SAP ABAP
Md. Aktarul Ahsan
Full Stack Web and Mobile Application Specialist
Senior software professional with 8+ years of experience building enterprise ERP systems, scalable REST APIs, and cross-platform mobile applications. Creator of 60+ published apps on Google Play, 5 apps on Apple App Store, and reaching 2M+ app users worldwide. Skilled in Java, Spring Boot, Flutter, Angular, SAP ABAP, and production app deployment.
Years Experience
Projects Done
Play Store Apps
App Store Apps
App Users
REST APIs
About Me
I specialize in enterprise software development, ERP systems, mobile applications, and cloud-ready solutions. With 8+ years of industry experience, 25+ completed projects, 60+ apps published on Google Play Store, and 5 apps on Apple App Store with 2M+ active users, I have delivered production applications for sales, HR, order management, inventory, restaurant POS, dealer management, and business automation.
My strength is building complete systems from database design and backend API development to responsive web dashboards, Flutter mobile apps, testing, deployment, and Play Store release management.
Professional Focus
- ✓ Enterprise ERP and business systems
- ✓ Flutter Android and iOS applications
- ✓ Spring Boot REST API architecture
- ✓ SAP S/4HANA ABAP reports and forms
- ✓ App publishing and monetization
Work Experience
Assistant Manager - Web and Mobile Application Specialist
March 2022 - PresentEnergypac Power Generation PLC
- • Develop enterprise web and mobile applications using Java, Spring Boot, Angular, and Flutter.
- • Build SAP ABAP reports, ALV reports, SmartForms, enhancements, and module pool programs.
- • Work on ERP, order management, HR, dealer management, and mobile field applications.
- • Handle API integration, database design, performance optimization, testing, and deployment support.
Programmer - Java and Android
August 2019 - March 2022Deeplaid Laboratories Ltd
- • Designed and maintained Java applications and responsive web applications.
- • Developed mobile applications using Flutter and Android technologies.
- • Worked on order management, employee portal, HR, and inventory-related systems.
- • Participated in analysis, coding, testing, debugging, and process improvement.
Programmer - Java
March 2019 - August 2019My Soft Ltd
- • Developed hospital management features for Combined Military Hospital.
- • Used Java, Spring Boot, Angular, Oracle, and SQL for enterprise application development.
Technical Skills
Backend
JavaSpring BootHibernateJPAREST APIMicroservicesJWTMobile
FlutterDartAndroidGetXFirebaseGoogle MapsIn-App PurchaseFrontend
AngularTypeScriptJavaScriptHTMLCSSBootstrapTailwind CSSDatabase
OracleMySQLSQLSQLiteFirebase RTDBDevOps and Tools
GitDockerJenkinsKubernetesPostmanMavenGradleSAP and ERP
SAP ABAPS/4HANAALV ReportSmartFormsBAPIBADIModule PoolProven Engineering Track Record
Featured Projects & Portfolio
Selected production applications across Enterprise ERP, Cross-Platform Mobile Apps (Flutter), Cloud Microservices, and SAP Systems.
Restaurant POS & Kitchen Display System
Complete cloud & offline Point of Sale solution for dine-in restaurants and cafÊs. Manages table bookings, split bills, KOT orders, Bluetooth/Ethernet thermal printing, and live kitchen queues.
Energypac Dealer & Field Force Automation (DMS)
Nationwide dealer network management and sales force automation platform for Energypac Power Generation PLC, handling secondary orders, credit limits, and field collections.
Kuaishou Video Downloader HD
High-performance global Android utility app built with Flutter. Features multithreaded fast video downloading, offline HD player, and Google Play in-app subscription billing.
Combined Military Hospital (CMH) Bed & Patient Care
Enterprise hospital management system developed for Combined Military Hospital. Manages patient admission, live bed allocation, doctor rosters, OT scheduling, and diagnostic workflows.
Deeplaid Pharma Order & Distribution Portal
Centralized pharmaceutical supply chain and field representative (MPO) order management application covering product catalogs, batch expiry monitoring, and dispatch allocations.
Enterprise HRMS & Geofenced Attendance Suite
Comprehensive human resource suite connecting physical biometric devices, mobile geofenced check-in, dynamic leave approval hierarchy, payroll generation, and tax computations.
SAP S/4HANA ALV Reports & SmartForms Suite
Enterprise SAP ABAP programming across MM, SD, and FICO modules. Developed custom interactive ALV reports, mission-critical SmartForms, BAPIs, BADIs, and module pool screen programs.
Logistics Fleet & Courier Delivery Driver App
Cross-platform Flutter application for logistics couriers and delivery riders featuring real-time waypoint navigation, in-app barcode parcel scanning, OTP verification, and cash-on-delivery (COD) wallet.
Microservices API Gateway & Enterprise SSO
High-throughput API Gateway and Single Sign-On (SSO) identity management layer built with Spring Cloud and Spring Security to orchestrate 100+ internal enterprise REST APIs.
Retail Warehouse & Barcode Inventory Automation
Industrial warehouse mobility solution designed for Honeywell and Zebra handheld terminals to handle barcode receiving, bin location mapping, order picking, and stock audits.
Flutter Masterclass Mobile Learning App
Interactive mobile learning platform engineered for developer training. Provides protected video streaming, downloadable resource packs, interactive quizzes, and payment integrations.
Labour Law Legal Compliance & Audit Engine
Statutory compliance analysis platform designed for corporate HRs, industrial factories, and legal practitioners adhering to Bangladesh Labour Act 2006 & Labour Rules 2015.
Need a Custom Enterprise App or Mobile Solution?
With 8+ years experience delivering 25+ projects and 60+ published apps, I can architect, build, and deploy your next web or mobile application.
Education and Certifications
Academic Degrees
- M.Sc in Pathology - National University
- B.Sc in Botany - National University
- H.S.C Science - Kurigram Govt College
- S.S.C Science - Kurigram Govt High School
Professional Certifications
- đ Oracle Certified Associate OCA
- đ Enterprise System Analysis and Design - J2EE - IDB-BISEW
- đ Mobile Application Development - Android - BASIS BITM
Let's Build Something Great
Open to discussing enterprise application development, Flutter mobile apps, ERP solutions, SAP ABAP work, freelance projects, and software engineering opportunities.