➤ Migrated a legacy RDBMS-based non-scalable data aggregator architecture to a system that is able to collect thousands of data points per second from different APIs based on AWS Lambda, SQS, Kinesis Firehose, S3, and Snowflake.➤ Implementing and maintaining social data collectors (Facebook, LinkedIn, Twitter, Instagram, Chargebee, Intercom, GoogleAds, etc ) that collect different types of data points from different APIs on top of AWS Well-Architected Pillars.➤ Implementing a robust ETL pipeline for the BI & Analytics team based on AWS Glue, spark and Terraform.➤Generating reporting data from structured and unstructured records. Using SQL, Snowflake-script, Spark, Athena, Glue, Python-Script.➤Implementing reporting service which is ensuring reporting data within a millisecond

➤ Leading a group of talented developers to build custom applications and multiple challenging projects with limited resources and delivered on time.➤ Migrate existing monolithic ERP (Oracle Forms, Oracle Db) to cloud-based microservice architecture solution (Spring, Angular, PostgreSQL) that ensuring high reliable, scalable, performance. Inwhwre migrates 1000+ Forms, 3K+ Reports, 10K+ DB object.➤ Built a high performance scalable, durable, and reliable platform ( 10K/sec TPS, MongoDB, Golang, Spring Webflux, Android, Docker, F5 load launcher ) for Bangladesh National Census Data collection survey system for collecting 50 million households and 180 million peoples data by 400K enumerators (apps user). Also prepare a real-time GIS-based survey monitoring system for 50K+ supervisor, 7K+ zonal, district, divisional census coordinators.➤ Build a cloud-based Real-Time Video Intelligence Systems (Python, Flask, Mysql, Redis, MongoDB, TensorFlow, caffe2, LSHash, Docker, Jetson Nano.) for face attendance, violence detection, parson tracking, product load-unload, car counting, etc.➤ Developed Lightweight Business Intelligence (Java, Spring, Angular, google chart, D3, Highchart, Dynamic Jasper, POI, Redis, MongoDB) that can easily connect any type of data source (MYSQL, ORACLE, PG, SQL SERVER, EXCEL), rearrange data using data builder, make dashboard easily(drag and drop) and share anyone anywhere. ➤ Stablished Real-time GIS-based highly scalable GPS tracking server for Mosquito Control Monitoring System (monitoring fogger man movement and fuel consumption) for Dhaka South City Corporation. That simultaneously connect a huge number of IoT based fogging device and collect sensor(GPS, sound, fule) data. Also Develop level 5 polygonal (city, zone, ward, and area) and line path (road) GIS for fogging area allocation and display fogging status on maps with crystal clear detail right down to street level.

➤ Develop multi-tenant School Management System for rural areas. That ensures teacher management, course management, student management, enrollment, exam, result, attendance etc. The platform has two interoperable applications one is online and offline based android app which is used by teachers and a web-based (PostgreSQL, J2EE) back office.➤ Develop multi-tenant Hospital Management System (PostgreSQL, Spring boot, AngularJS) for the remote area (5 land hospitals, 15+ ship floating hospitals). The system runs online and offline mode simultaneously and sync with the center system when the internet available. This system ensuring OPD, IPD, LIS, Patient Card, Reception, Cashcounter, Pharmacy module.➤ Developed healthcare management platform which provides primary healthcare under WHO guidelines for remote and challenging areas. Particularly designed for the community health workers. The platform has two interoperable applications one is an android based mobile app which is used by the community health workers, and a web application used by the Doctors and Management Team. This solution is capable of generating automatic prescriptions from algorithm-based questionnaires and patient previous history. When it finds any complexity it automatically connects to the doctor center. It covers 250+ health workers, 1M+ health service, 90K+ beneficiaries (Java, J2EE, JAX-RS, Groovy, Grails, Android, Mysql, Google ODK)

➤ Developed a powerful sales force management system for pharmaceutical companies (Sanofi Bangladesh) to manage their sales team and medical reps efficiently. This ensuring Location tracking, Activities Tracking, Work Planning, Customers Management, Order Collection, Assign Tasks, Doctor Visit, Google Maps navigation➤ Build an Android-based survey platform for accumulating agro product information and farmer’s field data. For empowering local rural communities to increase crop, livestock, and fisheries productivity. introduced climate-smart agricultural technologies, agronomic practices, crop varieties, and production technology packages better suited for evolving climatic and environmental conditions in target areas. ➤ Developed a Fintech application (Android, iOS, Windows ) for LankaBangla Finance Ltd. It provides a different type of information to account holders like balance query, mini statement of credit card, checkbook request, nearest booth location etc.

➤ Analyze, design and develop Integrated Medical Image Capturing and Reporting Software for Endoscope, Laparoscopy, Uretheroscope, Arthroscope, Electron Microscopes and many more.➤ Design and develop Laboratory Information Systems (LIS) Interfaces with Medical Lab Analyzer for test data exchange unidirectional or bidirectional mode via Serial port/ TCP IP Communication.➤ Develop an MVP PACS Solution (picture archiving and communication system) with RIS (Radiology Information System) which provides economical storage, retrieval, management, distribution and presentation of medical images(DICOM). ➤ Develop mobile-based EMR Android app that connects with existing HIS and transforms point of care. It saves time for doctors and nurses for accessing patient data any time and anywhere, whether online or offline.

Teach java and C++ and take lab for Object Oriented Programming course