API Design Handbook
HTTP Methods, Status Codes, and Semantics Done Right
In Chapter 2 we gave ShipCart a clean set of resources and URLs. A URL only tells a client what it's talking about, though.…
Backend · Banking & FinTech
Pronab Roy
Senior Backend Engineer · .NET · Building secure, reliable systems
I build and maintain backend systems for the banking sector — APIs, integrations and the payment plumbing that has to work every single time. Here I write about what I learn along the way.
From the blog
View all articles →Latest articles
API Design Handbook
Resource Modelling and URL Design
In Chapter 1 we wrote ShipCart's first endpoint, GET /products. One endpoint is easy. Fifty endpoints, written by four teams over two years, are…
Cloud & DevOps
CI/CD for .NET with GitHub Actions: Build, Test, Containerize and Deploy
Build a complete .NET CI/CD pipeline with GitHub Actions: NuGet caching with lock files, a .NET 8/10 test matrix, dotnet format and coverage gates, a Docker image on GHCR, and approved OIDC deployments, with a copy-paste ci.yml.
.NET
Caching in ASP.NET Core: IMemoryCache vs Redis vs HybridCache
ASP.NET Core caching gives you more options than most teams use, and that's the problem: IMemoryCache, IDistributedCache with Redis, the newer HybridCache, output caching,…
API Design Handbook
What Makes a Good API? REST and HTTP Fundamentals
Every API is a promise. When you publish an endpoint, you are telling other developers: "Send me this, and I'll send you that, today…
AI-Assisted Development
How I Review AI-Generated Code: A Practical Checklist
A practical checklist for reviewing code written with AI assistants, covering correctness, hallucinated APIs and packages, security, meaningful tests and maintainability, with C# examples.
About
Backend engineer in banking & fintech
I'm a backend engineer with 8+ years of experience building enterprise and fintech applications in the banking sector. For roughly the last 3 years I've worked mainly with .NET Core and C#; before that, most of my work was in PHP and Laravel.
I'm a certified Project Management Professional (PMP), and I hold an M.Sc. in Information Technology from Jahangirnagar University (2019) and a B.Sc. in Software Engineering from Daffodil International University (2017).
More about me →8+years backend
~3years on .NET
PMPcertified
M.Sc.JU, 2019
Languages
C#PHPJavaScript
Frameworks
.NET CoreLaravelCodeIgniterVue.js
Databases
MSSQLOracleMySQLMariaDB
Tools & concepts
GitDockerREST APIsMicroservicesPayment systems integration
Contact
Let's connect
Questions about an article, or want to talk backend engineering? Reach out on LinkedIn or by email.