Nadeeja NirmalaIT Manager

Engineering case studies

Five write-ups: three from my job as IT Manager at FIBC Lanka, and two from my own projects. Each one covers the problem, what limited the fix, how I built it and how I checked it held. Where I can’t share a number, I’ve left it out rather than rounded it up.

01

Index

Case studies by discipline
No.StudyDisciplineEvidence
01 Splitting a flat factory network into three zones

Splitting production, office and CCTV traffic apart without losing sight of any of it.

Network engineering3 zones · ERP QoS · IDS
02 Disaster recovery built around a four-hour target

Three copies of the ERP and production data, a four-hour restore target, and restores that get tested.

ContinuityRTO < 4h · RPO 24h
03 Running Windows, Linux and cloud servers as one system

Windows and Linux servers, on site and in the cloud, run as one environment.

Systems engineeringWindows + Linux · Cloud
04 Android work below the interface

IMS, 5G radio configuration and VPN behaviour, worked out against Android's moving privilege rules.

Android engineeringAndroid 11-17 · IMS
05 How this portfolio is built and tested

How this site is put together, and what I measured to check it.

Web engineering237/237 checks · 0.000 CLS