Portrait of Ekra Hossain

Ekra Hossain

Senior .NET Developer

I build AI-driven engineering workflows and enterprise-grade backend systems that hold up in production.

Dhaka, Bangladesh Remote-ready (UTC+6)

About

I am a Senior .NET Developer with 4+ yrs of experience building AI-driven engineering workflows and enterprise-grade backend systems. My day-to-day is .NET 8, EF Core and cloud-native architecture — paired with production AI work rather than demos.

That has meant shipping custom AI coding-assistant skills for Claude Code, wiring GPT-4o Vision into a computer-vision checkout flow, and running visual similarity search on Qdrant. Alongside it, I architect multi-repo SaaS platforms, automate CI/CD, and lead technical design inside Agile teams.

I am currently pursuing an MSc in Computer Science and Engineering focused on AI-enabled systems.

Download résumé

Experience

  1. Sep 2025 — Present

    Senior Software Engineer

    Bizzntek Ltd — Dhaka, Bangladesh

    Client: Altios.ai — GoGlobal IC Management Platform

    • Own backend architecture for a multi-repository IC/client invoicing and AP-integration platform — funding requests, credit notes and international transfer-fee invoicing across the ASP.NET Core MVC, business logic and data access layers.
    • Integrated a third-party payment AP system with scheduled jobs, structured logging and reconciliation workflows, cutting manual finance operations.
    • Built three custom AI coding-assistant skills (Claude Code) encoding repository structure and conventions across three production codebases — an AI-driven programming initiative that reduced new-engineer ramp-up time.
    • Authored layered technical context documentation (data, business logic and UI) to support AI-assisted implementation across the team.
    • Automated multi-environment CI/CD pipelines in Jenkins and built MySQL data-sync tooling with EF Core migration fixes to keep environments consistent.
    • ASP.NET Core MVC
    • EF Core
    • Claude Code Skills
    • Jenkins
    • MySQL

  2. Feb 2022 — Sep 2025

    Senior Software Engineer

    Zibew Ecommerce PTE Ltd — Remote

    Senior Software Engineer, Aug 2023 — Sep 2025 · Software Engineer, Aug 2022 — Jul 2023 · Intern, Feb 2022 — Jul 2022

    • Led technical design and code review for a distributed team of 5+ developers building and scaling SaaS platforms on .NET 8, MediatR and SignalR.
    • Architected cloud-native solutions on Azure and implemented CI/CD with GitHub Actions, improving deployment efficiency by ~50%.
    • Directed backend architecture for DigitalRX.io, a multi-tenant healthcare SaaS platform, growing online patient engagement by ~60%.
    • Directed backend architecture for DigitalPharmacy.io, a pharmacy eCommerce SaaS, cutting checkout latency by ~40% and improving uptime through failover design.
    • Engineered delivery scheduling and optimisation modules for logistics SaaS (GoDeliver, Bleaum), reducing delivery delays by ~25%.
    • Strengthened application security and performance through structured logging, API gateway management and load balancing.
    • .NET 8
    • MediatR
    • SignalR
    • Azure
    • GitHub Actions
    • Multi-tenant SaaS
View full résumé

Projects

  • Personal

    OctoPOS — AI-Powered Self-Checkout POS

    • Self-checkout POS that uses GPT-4o Vision for real-time visual product recognition, removing the dependence on manual barcode scanning at checkout.
    • Qdrant vector search matches recognised items against the product catalogue by visual embedding similarity — covering items with missing, damaged or absent barcodes such as fresh produce and loose goods.
    • Targets a core self-checkout loss problem — scan-avoidance and mis-rings — by visually verifying each item instead of trusting manual entry or a clean read.
    • Full system architecture documented for AI-assisted maintenance and handoff (a CLAUDE.md context file plus formatted technical documentation).
    • GPT-4o Vision
    • Qdrant
    • Vector Search
    • .NET 8

  • Client

    DigitalRX — Multi-tenant Healthcare SaaS

    • Backend architecture for a multi-tenant telehealth and prescription platform; online patient engagement grew by ~60%.
    • .NET 8
    • Multi-tenancy
    • Azure

  • Client

    DigitalPharmacy — Pharmacy eCommerce SaaS

    • Checkout latency cut by ~40% and uptime improved through failover design across the ordering and fulfilment services.
    • eCommerce
    • Performance
    • Failover

  • Client

    GoDeliver & Bleaum — Logistics SaaS

    • Delivery scheduling and route-optimisation modules that reduced delivery delays by ~25%.
    • Scheduling
    • Quartz.NET
    • Optimisation

Additional client platforms: ummatin.com, studentuplift.com, firstmed.com.pe, medexpress.lk.

Skills

AI-Driven Development

  • GPT-4o Vision
  • OpenAI API
  • Qdrant vector search
  • Claude Code skills
  • AI-assisted docs & code workflows
  • Prompt engineering

.NET & Backend

  • C#
  • .NET 8 Web API
  • MVC
  • Blazor
  • Razor Pages
  • FastEndpoints
  • SignalR
  • EF Core
  • MediatR
  • FluentValidation
  • Quartz.NET
  • MassTransit

Frontend

  • React.js
  • Next.js
  • TypeScript
  • JavaScript
  • React Native
  • jQuery

Data

  • MySQL
  • SQL Server
  • MongoDB

Cloud & DevOps

  • Azure
  • Azure DevOps
  • Jenkins CI/CD
  • GitHub Actions
  • AWS (working familiarity)
  • Google Cloud (working familiarity)

Practices

  • RESTful APIs
  • Microservices
  • TDD
  • Agile / Scrum
  • System architecture design
C# .NET Blazor TypeScript React Next.js Node.js OpenAI Microsoft Azure Azure DevOps SQL Server MySQL MongoDB Git GitHub Tailwind CSS

Education

Core strengths

  • Technical Leadership
  • Mentorship
  • Agile Project Management
  • Cross-functional Collaboration
  • Strategic Thinking
  • Technical Communication
  • Problem Solving