Reajul Haque Reayz

Senior Software Engineer | Full Stack Developer | Expert in ASP.NET

Experienced Software Engineer with a demonstrated history of working in the computer software industry. Skilled in ASP.NET, Entity Framework, JavaScript, PostgreSQL, PostGIS, Docker, MicroServices, ReactJS, etc.

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7 Years of
Experience
Reayz

Professional Experience

Senior Software Engineer
Enosis Solutions | 2020 - Present
  • Designed and implemented scalable cloud-native applications for real-time geospatial data visualization, reporting, and operational workflows within the maritime domain.
  • Processed and optimized large-scale AIS vessel tracking datasets (350M+ rows) in PostgreSQL/PostGIS, significantly improving geospatial query performance and enabling smooth map rendering with Google Maps and OpenLayers Maps integrations.
  • Redesigned and optimized response streaming architecture to efficiently transmit large datasets in incremental chunks, significantly improving system responsiveness and achieving a 95% user satisfaction rate.
  • Applied advanced caching strategies, background processing, and concurrency patterns (multithreading, concurrent dictionaries) to reduce query latency by 25%.
  • Containerized applications using Docker and implemented CI/CD pipelines in GitLab/Azure DevOps to automate deployment and testing.
  • Built multi-tenant SaaS solutions leveraging ASP.NET Core, Web Forms, and Web API frameworks, ensuring scalability, maintainability, and security.
  • Collaborated with distributed Agile teams, participating in sprint planning, daily stand-ups with the offshore team, and code reviews to deliver features on time.
  • Gained hands-on experience with cloud platforms and services, including Azure VMs, Blob Storage, AWS S3, and Azure DevOps pipelines.
Software Engineer
Enosis Solutions | 2018 - 2020
  • Developed full-stack web applications using ASP.NET Web Forms, MVC, and Entity Framework, delivering core features for authentication, access control, incident reporting, and risk management.
  • Implemented localization and multi-timezone support to improve usability across distributed teams and global user bases.
  • Resolved critical production issues, enhancing system stability and reducing incident response times.
  • Participated in requirements analysis, technical design, and task estimation within Agile teams.
  • Improved code maintainability and readability by applying modular design, SOLID principles, and reusable components.

Projects

AIS Vessel Tracking and Fleet Management Platform

Delivered a scalable cloud platform for real-time and historical vessel monitoring, customizable fleet management, geofencing alarms, video playback, offline AIS data capture, and detailed reporting.

Official Project
ASP.NET Framework ASP.NET Core JavaScript Docker MySQL PostgreSQL PostGIS
FriendsBook (Microservices based Social Platform)

Developed a containerized microservices platform inspired by Facebook, featuring user management, post services, and attachments. Implemented asynchronous communication with RabbitMQ, a unified API gateway with YARP, and monitoring using Prometheus, Grafana, and Serilog.

View on GitHub
Microservices ASP.NET Core EF Core SQL Server Docker RabbitMQ YARP Serilog Prometheus Grafana
Tourist Place Management System

Developed a three-tier application with a ReactJS frontend (class components, Redux, React Router), an ASP.NET Core 6.0 API backend, and a gRPC service for database access using Entity Framework and Protocol Buffers, ensuring modularity and efficient data flow.

View on GitHub
ASP.NET API gRPC EF Core SQL Server Protocol Buffers ReactJS
Issue Tracker

Developed a Jira-like multi-tenant issue tracking system featuring tenant separation, role-based claims authorization, and XSS-protected inputs. Applied Onion Architecture to ensure clean and maintainable layering, supporting project-based isolation and secure claim-based access control.

View on GitHub
ASP.NET Core EF Core SQL Server purify.js toastr.js
Dental Hospital Management Software

Developed a cloud-based practice management system supporting comprehensive patient records, appointment scheduling, and role-based access control.

Official Project
ASP.NET Core ASP.NET API EF Core Dapper Stored Procedures SQL Server
Incident Reporting and Risk Management Platform

Developed a secure, multi-department system with visitor tracking, license plate recognition, automated alerts, role-based access, and centralized monitoring.

Official Project
ASP.Net Framework ASP.Net Web Forms ASP.Net MVC Entity Framework ADO.NET JavaScript Kendo UI SQL Server TFS

Technical Skills

Frontend
  • ✓ HTML
  • ✓ CSS
  • ✓ JavaScript
  • ✓ jQuery
  • ✓ ReactJS
  • ✓ AngularJS
  • ✓ Kendo UI
Backend
  • ✓ ASP.NET (Framework & Core)
  • ✓ ASP.NET MVC, Web API, Web Forms
  • ✓ ADO.NET
  • ✓ gRPC services
  • ✓ RESTful APIs
  • ✓ Entity Framework (EF/EF Core)
  • ✓ Dapper
Database
  • ✓ PostgreSQL
  • ✓ PostGIS
  • ✓ SQL Server
  • ✓ MySQL
Tools & Utilities
  • ✓ Visual Studio
  • ✓ VS Code
  • ✓ SSMS
  • ✓ DBeaver
  • ✓ Postman
  • ✓ SQL Server Profiler
  • ✓ Sourcetree
  • ✓ Chrome Devtools
  • ✓ Lighthouse
  • ✓ Docker
Version Control & DevOps
  • ✓ Git
  • ✓ TFS
  • ✓ GitHub
  • ✓ Azure DevOps
  • ✓ Bitbucket
  • ✓ GitLab
Project Management
  • ✓ Jira
  • ✓ Confluence
  • ✓ SonarQube
  • ✓ TestRail

Education

B.Sc in Computer Science & Engineering
Comilla University

March 2013 – August 2018

CGPA: 3.56 out of 4.0

Higher Secondary School Certificate
Comilla Govt. College

July 2010 – June 2012

GPA: 4.60 out of 5.00

Secondary School Certificate
Chhotna Model High School

January 2005 – February 2010

GPA: 5.00 out of 5.00

Publications

Awards

14th SUST Inter University Programming Contest 2017
Team Name: CoU_Abnormal
30th ACM-ICPC Asia Dhaka Regional 2017
Team Name: CoU_RNR
37th National Collegiate Programming Contest (NCPC) 2016
Team Name: CoU_Abnormal
4th CUET Inter University Programming Contest 2017
Team Name: CoU_Abnormal
21st BUET IUPC 2015
Team Name: CoU_Trojans

Online Programming Profiles

Codeforces

Handle: Reayz

  • • Solved 1200+ problems
  • • Participated in 120+ rated contests
  • • Highest rating: 1716 (Expert)
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Codechef

Handle: reayz

  • • Highest rating: 1796 (3 Star)
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Other Achievements
  • • Elected for Round 2 in Facebook Hacker Cup 2018
  • • Solved 2000+ problems in different Online Judges