// Available for opportunities

Sithija
De Alwis

Bank Associate · BIT Student · Tech Enthusiast

Bridging the gap between financial technology and software engineering. Currently driving API integration & UAT at HNB while studying Information Technology at University of Moratuwa.

Here I am:~
whoami
Sithija De Alwis

cat profile.json
{
  "role": "Bank Associate",
  "org": "HNB PLC",
  "degree": "BIT @ UoM - UG",
  "focus": [
    "FinTech Products",
    "Cybersecurity",
    "Software Eng."
  ],
  "status": "open_to_work"
}

Crafting systems
at the intersection
of finance & tech.

I'm a Bank Associate at Hatton National Bank PLC in Sri Lanka, working across transaction banking, API integration, and client-facing technical projects. My day-to-day involves leading UAT for mission-critical payment API hubs and building tools that make banking smoother.

In parallel, I'm pursuing a Bachelor of Information Technology at the University of Moratuwa — blending rigorous academic study with hands-on professional work in one of Sri Lanka's largest banks.

My curiosity leans toward cybersecurity and software engineering — I enjoy going beyond the surface to understand how systems actually work, and where they might break.

8+
APIs Tested
2+
Years at HNB
UoM
BIT Degree
LK
Based in Sri Lanka

// Core Skills

API Testing & UAT90%
OAuth 2.0 / Auth Flows85%
Postman & REST APIs88%
Python / Web Tooling75%
C# / .NET (WinForms)60%
SQL / Database Design72%
Cybersecurity Concepts70%
Encryption (RSA/AES)68%

Where I've
been building.

2023 — Present
HNB PLC · Sri Lanka

Bank Associate — Transaction Banking

Leading UAT for the FinnAxia API Hub project by Nucleus Software — a go-live-critical engagement covering 8 payment APIs. Responsibilities include OAuth 2.0 token flow verification, defect documentation, and coordinating with vendors on compliance issues. Also manage client-facing technical projects and H2H integration presentations.

FinnAxia OAuth 2.0 Postman API UAT Finacle CBS REST APIs
2022 — Present
University of Moratuwa

Bachelor of Information Technology

Pursuing BIT with a focus on software engineering fundamentals, database management, computer architecture, and information systems. Active coursework includes a C# Inventory Management System (Windows Forms + SQLite), DBMS design, and ICT project modules.

C# / .NET SQLite DBMS Software Engineering Computer Architecture

Things I've
shipped.

// 001

FinnAxia API Hub UAT

End-to-end UAT for 8 payment APIs connecting ERP systems to HNB's core banking via Nucleus Software's FinnAxia. Includes OAuth 2.0 flow, throttle policy testing, and compliance defect tracking (DEF-001).

PostmanOAuth 2.0REST
View Details →
// 003
🗃️

Inventory Management System

A C# Windows Forms application with SQLite backend built for the ICT Project module at UoM. Full CRUD operations, category management, and stock reporting — built from scratch as a C# beginner.

C#WinFormsSQLite
View Details →

Let's build
something
together.

Whether it's a fintech project, a technical collaboration, or just a conversation about cybersecurity — I'm always open to connecting.