Mizanur Rahman Hridu
Full-Stack Senior Software Engineer
Turning Business Challenges into Scalable Software Solutions Using .NET | Microservices | Angular | React
- Years Experience
- 4+
- Projects Completed
- 15+
- Services Built & Maintained
- 200+
- Clients
- 10+
Companies I've worked with
— About
About Me
Get to know me and the technologies I work with
Mizanur Rahman Hridu
Full-Stack Senior Software Engineer
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
- -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
Foodi CRM - Food Delivery System
Foodi
Full-stack customer relationship management system for food delivery businesses
Bdjobs.com
Bdjobs.com
App for Job Seakers
Recruiter.Bdjobs.com
Bdjobs.com
Hiring management platform allowing employers to manage job posting to online assessments and interviews
Fare Comparison
US-Bangla Airlines
Airline fare intelligence platform comparing competitors' real-time fares, flight schedules, and seat availability for data-driven pricing
Other Projects
Airline Supplier Integration Projects
FirstTrip, TripLover, TakeTrip, TravelChamp, TakeOff
8 cloud-native supplier integration projects connecting OTA platforms with major airlines and GDS systems
O2P — A Reliable Oracle-to-PostgreSQL Data Migration Tool
Personal Project
I built O2P to solve one of the highest-risk parts of a large Oracle-to-PostgreSQL migration: moving large, changing production datasets reliably without turning every table into a manual migration exercise.
Booking Manager Service
FirstTrip, TripLover, TakeTrip, TravelChamp, TakeOff
Background service that automatically cancels un-ticketed bookings, saving ~$23K-$27K total across 6 OTA clients
Expense Tracker
Personal Project
Cross-platform personal finance app to track expenses, income, and budgets with analytics
E-desh Limited E-Courier Management Project
E-Desh Ltd
Api project thay manage courier
— 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.
Cutting ADM Penalties with an Automated Booking Cancellation Service
A background service that automatically cancels un-ticketed bookings before the last ticketing time, saving ~$23K-$27K across 6 OTA clients.
— Blog
Blog
Thoughts, tutorials, and insights on software development
— Education & Certifications
Education & Certifications
My academic background and completed courses
— 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