Kasmira Wijayathunga

Designing simple answers to complex problems

Engineering solutions that matter...
KW
Kasmira Wijayathunga
@kasmirawijayathunga

Driven by curiosity,
powered by code.

Hi, I'm Kasmira. I specialize in creating innovative, scalable solutions that bridge technology and real-world needs.

Currently working on…

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Picture of Kasmira Wijayathunga

Tech stack

Full-stack development focused on scalable SaaS systems, cloud deployment, modern API architecture, and production-grade frontend delivery.

At a glance

  • TypeScript
  • Next.js
  • JavaScript
  • React
  • Node.js
  • Express.js
  • Prisma ORM
  • PostgreSQL
  • MySQL
  • Tailwind CSS
  • REST APIs
  • JWT
  • OAuth
  • Java
  • Python
  • Django
  • Docker (Basic)
  • Git
  • GitHub
  • CI/CD
  • Nginx
  • PM2
  • Vercel
Core frontend
  • Next.js
  • React
  • TypeScript
  • Tailwind CSS
  • JavaScript
  • HTML5
  • CSS3
  • SSR
Backend & API
  • Node.js
  • Express.js
  • Django
  • REST APIs
  • JWT
  • OAuth
  • Microservices
Databases & ORM
  • PostgreSQL
  • MySQL
  • Prisma ORM
  • Firebase
DevOps & deployment
  • Linux
  • Nginx
  • PM2
  • Docker (Basic)
  • CI/CD
  • Git
  • GitHub
  • npm
  • Vercel
  • Neutralino.js
Languages
  • Python
  • Java
  • C++
  • Dart
  • Rust
  • R
  • PHP
Concepts & practices
  • SaaS Architecture
  • Multi-tenant systems
  • Performance Optimization
  • PWA
  • Responsive design
  • Project Management

Experience timeline

Full-Stack Developer (Freelance)

Self-Employed · Feb 2023 - Present

Sri Lanka - Remote

Developed and deployed 10+ production full-stack applications with Next.js, Node.js, and MySQL, including scalable REST APIs, Prisma-based architectures, PWAs, and CI/CD delivery workflows.

"Built production systems end-to-end, from architecture and APIs to deployment pipelines and cross-device experiences."

Current role

Founder & Hostmaster

Singha Cloud · Jan 2021 - Dec 2024

Sri Lanka - Remote

Founded and operated a cloud hosting platform supporting 40+ client websites, with internal SaaS billing tools, WebHost Manager API integrations, and production infrastructure management.

Lead Developer

Helascript (Pvt) Ltd · Mar 2021 - Sep 2022

Sri Lanka - Hybrid

Co-founded and led development for custom software and web solutions, translating business requirements into scalable technical architectures, APIs, and production-ready delivery plans.

"Led engineering timelines, coordinated directly with clients, and delivered multiple production platforms for SMEs and startups."

Leadership

Education & Certifications

Learning ledger

A mix of formal engineering education and hands-on certifications shaping how complex systems are designed, secured, and shipped.

Foundations

Before the builds and the battle scars, there was disciplined learning.

The timeline shows where the work went. This next section shows the academic track and certifications that shaped how that work was built.

Academic track

Education

ongoing

B.Sc. (Hons) Engineering - Information & Communication Engineering

Sri Lanka Technology Campus (SLTC)

Expected Graduation: 2026Building on software, systems, and communication engineering.

Applied learning

Certifications

Skill stamps

  • Diploma in Hardware and Network Engineering

    Esoft Metro Campus | Pearson

  • Diploma in Cyber Security and Ethical Hacking

    SITC Campus, Sri Lanka

  • Certificate in Java Programming

    Esoft Metro Campus

  • IT Essentials (OS & IT)

    Cisco Networking Academy

Blueprinted Projects

Fig.01 - spec sheet

P

POS Daily - Multi-Tenant SaaS POS Platform

Built a multi-tenant SaaS POS system with role-based access control, JWT authentication, server-side rendering, and automated PDF invoice generation.

Next.jsTypeScriptPrismaPostgreSQLJWTPWA
View deployment →
Fig.02 - spec sheet

N

NeuReact - Open Source Desktop Framework

Created a lightweight desktop framework for React apps without Electron overhead, with a plugin-extensible architecture and CI/CD-based package release flow.

ReactTypeScriptNeutralino.jsnpmCI/CD
View deployment →
Fig.03 - spec sheet

S

Singha Cloud Platform

Developed a hosting platform with subscription billing, client dashboards, and automated provisioning, deployed with Nginx reverse proxy and PM2 process management.

Next.jsTypeScriptMySQLPrismaNginxPM2
View deployment →
Fig.04 - spec sheet

S

StudPro - National Career Platform

Developed a CMS-driven career platform for IEEE Young Professionals Sri Lanka with headless content architecture and static generation workflows.

Next.jsJavaScriptSanity CMSSSG
View deployment →
Fig.05 - spec sheet

G

Galle Scouts Platform

Built an organizational CMS with Google Sheets as a headless backend, OAuth service account integration, hybrid SSG + SSR architecture, and LMS functionality using Supabase.

Next.jsREST APIsSupabaseOAuthSSGSSR
View deployment →

Community & Volunteering Reel

Sep 2022 - Present

Adult Scout Leader

Galle District Scout Association

Completed Scout Wood Badge Advanced Course and continued district-level service.

Jul 2025 - Present

Assistant Headquarters (National) Commissioner

Sri Lanka Scout Association

Youngest active National Commissioner under the International Division, handling WOSM-facing coordination and NSO collaboration.

Apr 2024 - Dec 2025

Webmaster

SEDS SLTC (Students for the Exploration and Development of Space)

Managed chapter web systems, content updates, and digital communication channels.

Apr 2024 - Feb 2025

Entrepreneurship & Innovation Ambassador

IEEE R10 Adhoc Committee on Entrepreneurship and Innovation

Contributed to regional innovation initiatives and entrepreneurship-focused programs.

Mar 2024 - Jan 2025

National Coordinator

IEEE Student Activities Committee (Sri Lanka)

Coordinated student-impact initiatives and cross-campus activities at national level.

Jul 2023 - Mar 2024

Webmaster

IEEE Young Professionals (StudPro 6)

Owned website and digital presence for the national career platform program.

Jun 2023 - Present

Assistant Secretary

Galle District Chess Association

Supported organizational operations, event coordination, and district-level administration.

Jun 2022 - Present

Arbiter (National)

Chess Federation of Sri Lanka

Served as national arbiter in structured competitive chess environments.

Nov 2023 - Present

Co-Chair

IEEE YP (Tech Talk with Insighture)

Co-led planning and execution for technical knowledge-sharing sessions.

Jun 2023 - Present

Student Member

IEEE Sri Lanka Section

Active involvement in chapter activities, programs, and student engineering network.

Jan 2023 - Present

Rover Scout

Richmond College Rover Scout Troop

Participating in leadership, community service, and rover-level scouting programs.

Sep 2022 - Present

Adult Scout Leader

Galle District Scout Association

Completed Scout Wood Badge Advanced Course and continued district-level service.

Jul 2025 - Present

Assistant Headquarters (National) Commissioner

Sri Lanka Scout Association

Youngest active National Commissioner under the International Division, handling WOSM-facing coordination and NSO collaboration.

Achievement wall

NASA Space Apps Challenge 2024

Won 4 awards

  • Global Community Award
  • Most Inspirational Project
  • Local Impact Award
  • Art & Technology Award

ACES Coders v11.0 (University of Peradeniya)

Top 10 team

  • Competitive algorithm and product-focused challenge environment.

Cypher Hackathon (KDU)

5th place

  • Strong performance in rapid problem-solving and team execution.

Manthra Hackathon (NSBM)

Top 10 team

  • Built and pitched a practical solution under strict time constraints.

Duothan 3.0 (IEEE NSBM)

Top 10 team

  • Balanced technical depth with implementation speed and clarity.

Codemania v3.0 (SLTC)

8th place

  • Ranked in top placements among university-level competitors.