Portrait of Sachintha

Hi, I'm Sachintha

Senior Software Engineer at Behaviol (Pvt) Ltd

I build systems that hold up after the requirements change.

I ship production web and mobile software end to end, and I research VR and AR that run in the browser. I pick the stack after I understand the problem, not before.

  • Kalutara, Sri Lanka
  • Master of Computer Science, in progress
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About

I finished two bachelor's degrees, software engineering at SLIIT and information systems at UCSC, and I'm working through a master's at UCSC now while engineering full time. My production work is full-stack web and mobile software, in whatever domain the client is in. My research is VR and AR in the browser, which is a stranger problem than it sounds, because a browser gives you almost none of what a native XR app takes for granted. What connects the two is that I'd rather work where the constraints are real and the answer isn't obvious yet.

Production delivery

Features shipped end to end on platforms clients use daily

Not tied to a domain

Lab data, live sports gaming, team messaging. The engineering carries over

Applied research

VR and AR that run in a browser, with nothing for the user to install

Engineering Domains

What I can do, and the tools I do it with.

Architecture & System Design

Splitting a system into services and contracts that survive the next requirement change.

In practice: I designed a reservation platform as microservices behind an ESB, and a multi-role system where a passenger mobile app and an agent web portal share one API. In my final-year project I split the work between an IoT device, an inference service, and a mobile app.

REST API designMicroservicesSchema-driven UIWebSocketsMonorepo tooling

Core Engineering

Typed, reviewable code, and fundamentals that move with me between languages.

In practice: I deliver features end to end on production client platforms, review peers' code, and mentor junior engineers. Four language ecosystems so far, and the switch costs less each time.

TypeScriptJavaScriptJavaPythonC#/.NETNode.jsSpring Boot

Data & Infrastructure

Modeling state, then keeping the client and the server in agreement about it.

In practice: Implemented NextAuth authentication flows and built on a TanStack Query server-state layer for a LIMS used by Australian testing laboratories. Across projects I have modeled both relational and document schemas, choosing between them per access pattern.

PostgreSQLMongoDBMySQLFirebaseNextAuthTanStack QueryRedux

Immersive & Emerging Interfaces

Getting VR and AR to run in the one place every user already has: the browser.

In practice: I research browser-based VR and AR, work that started as a research internship under Dr. Damitha Sandaruwan at UCSC. I also developed UI for META11's AI-driven virtual cricket platform.

WebXRVRARIoTLLM-assisted workflows

Experience & Education

My academic and professional journey so far

  1. Behaviol (Pvt) Ltd | Colombo, Sri Lanka

    Senior Software Engineer

    Own delivery of features end to end on client products. The current one is a laboratory information management system for Australian testing laboratories. Review peers' code and mentor the junior engineers on the team.

    Software Engineer

    Built JSON-driven forms for a laboratory information management system, so a new test type reaches lab analysts without a code release. Implemented the NextAuth authentication flows and the TanStack Query server-state layer.

    Associate Software Engineer

    Built UI components for META11, an AI-driven virtual cricket platform.

  2. University of Colombo School of Computing (UCSC) | Colombo, Sri Lanka

    Research Intern

    Researched browser-based augmented reality under Dr. Damitha Sandaruwan. The question was how much AR a mobile browser can do when the user installs nothing.

  3. CreativeHub Global | Colombo, Sri Lanka

    Software Engineer Intern

    Built a React Native messaging app for business teams. Used Redux-Saga for state and Firebase for push notifications on both iOS and Android.

Education

  • Master of Computer Science

    University of Colombo School of Computing (UCSC)

    Part time, alongside full-time engineering work.

  • BSc (Hons) in Information Technology, specializing in Software Engineering

    Sri Lanka Institute of Information Technology (SLIIT)

  • BSc in Information Systems

    University of Colombo School of Computing (UCSC)

Contact

I take on freelance work. If you have a problem that looks like the work above, write to me.

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