Welcome to my portfolio

Hi, I'm Sumeera

Software Engineer & React TypeScript Developer crafting scalable, performant web applications in Sri Lanka. Crafting beautiful, performant web applications with modern technologies and clean architecture.

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Available for freelance & full-time

Featured Projects

A selection of enterprise and open-source projects I've engineered

Personal

SkyLeger — Drone Information Management System (DIMS)

Architected a cross-platform desktop application using Tauri v2 (Rust) and React 19 with TypeScript for high-performance, offline-first drone lifecycle tracking.

Tauri v2RustReact 19TypeScript+3

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Personal

Sumeera Madushanka — Personal Developer Portfolio

Architected and built a high-performance personal portfolio website using Next.js 15 App Router, React 19, TypeScript, Tailwind CSS v4, and shadcn/ui with fluid animations and live analytics.

Next.js 15React 19TypeScriptTailwind CSS v4+4

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Team Project

Yogeshwari — Event Ticketing & Management Platform

A comprehensive full-stack event ticketing and management platform for large-scale concerts. Features customer ticketing, admin dashboard, and mobile check-in app with QR scanning.

React 19TypeScriptFlutterRedux Toolkit+7

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CompanySyntax Genie

Oversight EMS — AI-Powered Energy Intelligence & Telemetry Platform

Architected and engineered the award-winning Oversight EMS platform (SLASSCOM Ingenuity Awards 2024 National & Regional Winner for Best Tech for Good Software Innovation), providing real-time AI energy intelligence, grid telemetry, and asset optimization.

React 19TypeScriptRedux ToolkitRTK Query+4

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Experience Work & Progression

Proven track record of engineering leadership and frontend architecture at Syntax Genie (Pvt) Ltd

Verified Career Growth Path

July 2022 - February 2023Trainee Software EngineerSyntax Genie (Pvt) Ltd

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February 2023 - June 2024Associate Software EngineerSyntax Genie (Pvt) Ltd

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June 2024 - PresentSoftware EngineerSyntax Genie (Pvt) Ltd

Software Engineer

Current Role

Syntax Genie (Pvt) LtdHomagama, Sri Lanka

June 2024 - Present

Leading frontend development for enterprise applications, designing scalable architectures, reusable UI components, and complex workflows for maintainable, production-grade software.

Key Responsibilities & Contributions

Lead frontend development for enterprise applications, designing scalable architectures, reusable UI components, and complex workflows for maintainable, production-grade software.
Integrate RESTful APIs and build real-time monitoring dashboards with a strong focus on performance, usability, and responsive user experiences.
Optimize frontend performance and application workflows to improve reliability and overall product experience.
Conduct code reviews and establish frontend development best practices to maintain code quality and consistency across projects.
Mentor junior developers and collaborate closely with backend engineers, UX designers, and product teams to deliver scalable software solutions.

ReactNext.jsTypeScriptTailwind CSSREST APIsRedux / ZustandArchitectureCode ReviewMentoring

Associate Software Engineer

Syntax Genie (Pvt) LtdHomagama, Sri Lanka

February 2023 - June 2024

Developed and integrated core application features using modern frontend technologies, third-party payment integrations, and RESTful APIs within Agile sprints.

Key Responsibilities & Contributions

Developed and integrated application features using modern frontend technologies and RESTful APIs.
Integrated third-party services, including the PayHere payment gateway, while ensuring reliable application functionality.
Collaborated with UX designers, backend developers, and cross-functional teams to translate requirements into high-quality software features.
Participated in Agile development practices, contributing to sprint planning, implementation, testing, debugging, and continuous improvement.
Improved application functionality and user experience through iterative development and effective problem solving.