Thathsara Madusha

Software engineer building at the intersection of systems and cloud, turning hard problems into software that feels effortless to use.

available for worksoftware engineer & devops

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Engineer, end to end.

I'm a software engineer, most recently at WSO2, with a computer science background from the University of Colombo, working from Go and Rust backends to Kubernetes infrastructure. On capable desktops, the figure beside this text is rendered live: ninety thousand points sampled from a 3D scan and spun by your scroll. Smaller screens receive a lightweight still.

My work lives where craft meets reliability: clear interfaces, honest observability, and code the next person can actually read. On the side I research DDoS-aware autoscaling and deep-packet-inspection evasion. I'd rather build one thing that holds up than ten that don't.

What I work on.

engineering

Building software end to end, from Go and Rust backends to React/TypeScript interfaces. I care about the details most people skip past.

Go
Rust
TypeScript

systems & cloud

Designing the moving parts so they actually fit: clear interfaces, sensible data, and infrastructure you can reason about.

Kubernetes
Terraform
AWS

reliability

Shipping is the start, not the finish. I like the unglamorous DevOps work that makes things observable, testable, and hard to break.

Observability
CI/CD
Grafana

Things I've built.

Seer

A GPT-style transformer language model built end to end in Rust on HuggingFace's Candle: BPE tokenizer, multi-head causal self-attention, and the full training pipeline from scratch.

Candle
ML

source code

Home Lab

A self-hosted infrastructure lab exposed to the public internet: a Kubernetes cluster behind Nginx with TLS, monitored live on Grafana & Prometheus.

Prometheus

field notes below

CareerSync

A cloud-native recruitment platform that processed over 12,000 résumé PDFs with OpenAI for automated candidate screening — React/Laravel, provisioned with Terraform, deployed on Kubernetes.

Terraform
OpenAI

selected build · no public link

The cluster I can reach with my hands.

A self-hosted Kubernetes environment on a compact local node, exposed to the public internet through Nginx and TLS and observed with Prometheus and Grafana. It gives me a real place to operate networking, deployment, and reliability decisions outside a local-only sandbox.

01public internet
02Nginx + TLS
03Kubernetes
04workloads
05Prometheus + Grafana

Compact home-lab server, UPS, network cable, and power hardware mounted above a metal cabinet — The physical edge: compute, network, and power in one deliberately small footprint.

Low-angle view of the home-lab server and UPS above a locked metal cabinet — Hardware you can inspect, unplug, recover, and improve.

Close view of the home-lab node with Ethernet and power connections — The node at the center of the cluster.

How I got here.

ongoing
Undergraduate Researcher · University of Colombo
Researching DDoS-aware autoscaling for cloud resilience against EDoS attacks: distinguishing legitimate from malicious traffic when allocating resources.
nov 2025 - apr 2026
Intern Software Engineer · WSO2
Shipped a self-service persistent-storage feature for cloud applications — Go backend services and a React/TypeScript marketplace UI — eliminating manual infrastructure configuration, with every change passing senior review across six codebases and three teams.
2023 - 2027
BSc (Hons) Computer Science · UCSC
Honours degree at the University of Colombo, GPA 3.66 and two Director's List awards for academic excellence.
2022 - 2024
Freelance Web Developer · Remote
Delivered Laravel CMS and web apps for clients, owning backend architecture, deployment, and SEO performance.