Hi, I'm
Mizanur Rahman Hridu
Senior Full Stack Software Engineer - Team Lead
Architecting clean, scalable solutions with ASP.NET Core, Angular/React & microservices
Companies I've worked with
— About
About Me
Get to know me and the technologies I work with
Mizanur Rahman Hridu
Senior Full Stack Software Engineer - Team Lead
Hi, I’m Mizanur Rahman, a Senior Software Engineer with 4+ years of experience building scalable backend systems and business-critical software using the Microsoft technology stack (C#, .NET, ASP.NET Core, SQL Server, Azure) and microservices.
Over the years, I’ve had the opportunity to work with products and platforms for some of the leading companies in Bangladesh:
- -US-Bangla Airlines — Bangladesh’s largest private airline
- -Banglalink — Bangladesh’s 2nd leading telecom operator
- -Bdjobs.com — South Asia’s largest job-search platform
- -Foodi — the country’s 2nd largest food delivery system
- -Several top online travel agency platforms — including FirstTrip, TripLover, TakeTrip, TravelChamp, and TakeOff
I specialize in backend engineering, third-party API and payment integrations, legacy system modernization, database migration, and performance optimization.
I’m also an AI-assisted developer, using modern AI tools to accelerate development, debugging, research, and problem-solving.
Outside of engineering, I’m a fitness enthusiast. I enjoy continuous learning, mentoring junior engineers, solving challenging technical problems, and documenting my learning and professional journey. Thank you for taking the time to learn about me.
Skill Proficiency
— Services
Key Expertise
How I can help with your next project
Backend & API Development
Scalable REST/SOAP APIs and backend systems built with ASP.NET Core, EF Core, and clean, maintainable architecture.
- Clean Architecture
- CQRS
- API design & documentation
Microservices & System Architecture
Designing and building multi-tenant, event-driven microservices that scale — from service boundaries to messaging and data ownership.
- Multi-tenant SaaS
- Event-driven design
- RabbitMQ / Kafka
Third-Party API & Payment System Integrations
Integrating airline GDS/NDC APIs, payment gateways, and other third-party services into production systems reliably.
- API Integration
- Payment gateways
- Webhook & event integrations
Performance Optimization & Scaling
Profiling and optimizing backend systems — from query tuning to caching — to handle production load without surprises.
- Query & DB tuning
- Redis caching
- Load testing
Legacy Modernization
Modernizing legacy .NET systems and mentoring teams through code review, without disrupting what already works.
- Legacy system migration
- Technical mentoring
Project Database Migration
Moving production databases between engines — including SQL Server to PostgreSQL — covering schema, data, and the application data-access layer.
- SQL Server → PostgreSQL
- Schema & data migration
- Licensing cost reduction
— Experience
Experience
My professional journey and the roles I've held
Software Engineer
TechnoNext Software Ltd. (Concern of US-Bangla Airlines)Online Travel Agency
A multi-tenant OTA platform that enables travel agencies to search, compare, book, and manage flights, hotels, holiday packages, and other travel services.
- -Built scalable software solutions for 6 OTA clients including TripLover, TravelChamp, FirstTrip, TakeTrip, TakeOff, & TripLover Dubai
Foodi
A food delivery platform that enables customers to browse restaurants, place orders, make payments, and track deliveries in real time.
- -Improved API response time by implementing a read/write Redis caching strategy for better scalability
Fare Comparison
An airline fare intelligence platform that enables airlines to compare competitors' real time fares, flight schedules, and seat availability, providing data-driven pricing recommendations to maximize revenue and profitability.
- -Designed and developed the end-to-end platform, delivering a scalable and responsive web application
Jr. Software Engineer
Bdjobs.com Ltd.Bdjobs.com & Recruiter.Bdjobs.com
Platforms that connects job seekers with employers by enabling job posting, job search, application management, resume submission, and recruitment workflows.
- -Collaborated with product, backend & QA teams to migrate Bdjobs.com corporate panel from legacy ASP to Angular and ASP.NET Core, enhancing platform functionality and performance
Jr. Software Engineer (Part-Time)
E-Desh LimitedCourier Platform
A comprehensive logistics platform that streamlines parcel booking, real-time tracking, last-mile delivery, reverse logistics, fulfillment, and cross-border shipping through a centralized management system.
- -Collaborated with a team of remote developers to design and develop the company's website using React and ASP.NET Core
— Projects
Projects
A selection of projects I've worked on
Online Travel Agency (OTA) Platform
FirstTrip, TripLover, TakeTrip, TravelChamp, TakeOff
Web-based travel booking platform enabling users to search, compare, and book flights from multiple airlines and GDS systems
A comprehensive travel booking platform integrating multiple airlines (Novo Air, US-Bangla Airlines, Jazeera Airways, AirAstra, Air Arabia, IndiGo) and Global Distribution Systems (Amadeus, Sabre, Travelport). Built with scalable microservices architecture to handle high-volume flight searches and bookings.
Foodi CRM - Food Delivery System
Foodi
Full-stack customer relationship management system for food delivery businesses
Foodi CRM is a comprehensive customer relationship management system for food delivery businesses, enabling order tracking, restaurant management, delivery partner monitoring, and customer interaction. Built with a scalable microservices architecture focused on performance and usability.
Recruiter.Bdjobs.com
Bdjobs.com
Hiring management platform allowing employers to manage job posting to online assessments and interviews
A comprehensive recruitment platform that allows employers to manage the entire hiring process from job posting to online assessments and interviews. Built with Angular frontend and ASP.NET Core backend, integrated with Bangladesh's largest job portal ecosystem.
Fare Comparison
US-Bangla Airlines
Airline fare intelligence platform comparing competitors' real-time fares, flight schedules, and seat availability for data-driven pricing
An airline fare intelligence platform that enables airlines to compare competitors' real time fares, flight schedules, and seat availability, providing data-driven pricing recommendations to maximize revenue and profitability. Integrated multiple GDS and NDC suppliers to aggregate and normalize competitor data, and engineered pricing-intelligence logic to help airlines optimize ticket pricing.
Other Projects
Booking Manager Service
FirstTrip, TripLover, TakeTrip, TravelChamp, TakeOff
Background service that automatically cancels un-ticketed bookings, saving ~$23K-$27K total across 6 OTA clients
Airline Supplier Integration Projects
FirstTrip, TripLover, TakeTrip, TravelChamp, TakeOff
8 cloud-native supplier integration projects connecting OTA platforms with major airlines and GDS systems
Expense Tracker
Personal Project
Cross-platform personal finance app to track expenses, income, and budgets with analytics
— Case Studies
Case Studies
In-depth looks at problems I've solved and how I solved them
How a Redis Stampede (Thundering Herd) Hit Our OTA Search Ranking Engine — And How We Fixed It
When 30 integrated suppliers and 40-50 unique airlines per search met an uncached rank lookup, concurrent cache misses stampeded the database in unison — here's how negative caching and locking around retrieval broke the herd.
How I Made My Static Website Editable — Without a Server or Database
This portfolio site is hosted completely free with no server behind it. Here's how I still gave myself a private dashboard to update every part of it from a browser, without adding a server or a database.
Progressive Search: Showing Flight Results Before All 30 Suppliers Answer
Flight search used to wait on all 30 suppliers before showing anything — one slow responder meant everyone waited. Here's how Server-Sent Events let us stream results the moment each supplier answers.
— Education & Certifications
Education & Certifications
My academic background and completed courses
BSc (Eng.) in Information & Communication Technology
Hajee Mohammad Danesh Science & Technology University
HSC (Higher Secondary Certificate) in Science
Cumilla Victoria Government College
— Get In Touch
Get In Touch
Have a project in mind or want to chat? I'd love to hear from you.
Let's Connect
I'm always open to discussing new projects, creative ideas, or opportunities to be part of your vision. Feel free to reach out!
Location
Dhaka, Bangladesh