Chethin Weerakkody

CHETHINDeployed @ LyraWEERAKKODY

Founder & Software Engineer

hello@chethin.megithub.com/chethinin/chethinWWWchethin.me
01

About

Edtech founder and software engineer building tools for assessment design, distribution, and evaluation. First Class Honours graduate from ANU with a research background in computer systems and tooling. You'll find me tinkering and optimising.

6+

Years building

2×

Founder

1st

Class Honours

99.80

ATAR

02

Skills

AI & LLM Systems

01
LLM HarnessesRAG PipelinesAutomated GradingAgent SecurityRed-Teaming

Core Engineering

02
TypeScriptReactNext.jsNode.jsPython

Architecture

03
System DesignMicroservicesCachingReal-Time SystemsMessage Queues (SQS)

Cloud & Data

04
AWSGCPDockerCI/CDPostgreSQLRedisFirebase

Systems Programming

05
RustCCompilers & ParsingPerformance Optimisation
03

Experience

  1. Lyra + Chakra Labs ↗Aug 2026 – Present

    Forward Deployed Engineer

    • →AI security research — finding attack vectors in AI agents to build attack datasets
    AI SecurityLLMsHarborDaytona
  2. Papersetter ↗Aug 2025 – Aug 2026

    Co-founder & Software Engineer

    • →Owned architecture end to end — designed the platform from scratch as microservices on AWS with Redis caching, SQS job queues, Firebase, and PostgreSQL
    • →Led a fullstack team across 300k+ lines of code spanning multiple services and repos
    • →Built LLM harness for automated exam creation and grading — structured evaluation, rubric enforcement, and confidence scoring across question types
    • →Designed and executed migration of live production data across versions with zero downtime
    • →Shipped the core exam creation platform with rich content editing and real-time collaboration over WebSockets
    ReactNode.jsAWSRedisPostgreSQLSystem Design

  3. Australian National University

    Jan 2023 – Jun 2025

    Research Assistant

    • →Cut query latency by 25% on a 100k-document corpus by redesigning the caching strategy of a C-based Lucene search engine
    • →Designed and implemented an incremental LR parser in Rust with error correction, building on Wagner's research approach
    • →Authored First Class Honours thesis on parsing systems and performance optimisation
    RustCLucenePerformance Optimisation

  4. TeleMedC

    Jan 2022 – Mar 2023

    Software Developer

    • →Delivered the Next.js dashboard and Django backend for TeleEyeMD, an AI diagnostic tool handling thousands of patient records across hundreds of clinics
    • →Owned testing strategy — drove Cypress coverage of diagnostic workflows high enough to satisfy FDA regulatory requirements
    • →Authored FDA testing documentation and regulatory reports supporting product certification
    • →Implemented JWT-based authentication with multi-session support for admin workflows, with strict API controls preventing patient data exposure
    Next.jsTypeScriptCypressHealthtechDjango

  5. Clarify Tutoring

    Jan 2020 – Dec 2021

    Co-founder & Full-stack Developer

    • →Co-founded and built a student-tutor marketplace with chat, assignment uploads, invoice management, and Stripe payments
    • →Set technical direction from day one — chose the React and Firebase stack for velocity across Firestore, Auth, Storage, and Functions
    • →Drove customer acquisition to $50k ARR through student marketing, referrals, and discount campaigns
    ReactFirebase
04

Education

Australian National University

Feb 2021 – Jun 2025

Bachelor of Advanced Computing (Research and Development) (Honours)

First Class Honours • Systems & Architecture • Microarchitecture, compilers, and operating systems

05

Projects

Clastor

01

Open-source tooling for independent tutors — student management, scheduling, and invoicing in one place. Google Calendar and Google Meet integration, deployed on GCP. Built for solo operators who outgrew spreadsheets.

ReactFirebaseStripeGCP
View ProjectSource

Three.js Portfolio

02

3D D&D-style portfolio exploration experience inspired by Bruno Simon. Complete structure with WebGPU and TSL implementation. Expanding with Blender models and custom shaders.

Three.jsWebGPUTSLBlender
View Project

Trip Split

03

Trip expense settlement as a graph problem — computes who owes what with the minimum number of transactions, so a group trip settles in as few transfers as possible.

TypeScriptGraph AlgorithmsReact

Scout Compliance Tracker

04

Asset-tracking app that lets scout groups guarantee compliance — every item is tracked, inspected, and signed off, replacing spreadsheet audits with a live record.

FlutterDartFirebase

06 — Contact

Let's Connect

Open to interesting conversations, collaborations, and new opportunities.

Email

hello@chethin.me

LinkedIn

linkedin.com/in/chethin

GitHub

github.com/chethin