Hi, I'm

Sameera Piyadigamage

Senior Tech Lead & Systems Designer

Senior Tech Lead with 16+ years architecting scalable web & mobile applications. Expert in Flutter, React, and Node.js with cloud expertise across Azure & GCP. Led teams delivering SaaS platforms serving 10M+ users.

View My Work Get In Touch
sameera.ts 
const sameera = {
  role: "Senior Tech Lead",
  location: "Sri Lanka 🇱🇰",
  experience: "16+ years",
  specialties: [
    "Flutter",
    "React",
    "Node.js",
    "System Design"
  ]
};
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About Me

I am passionate about solving problems with technology and building great products that increase the quality of life of people. I love writing code, working with teams, and driving them to accomplish common goals.

With over 16 years in the IT industry, I've explored many areas in my early career, which helped me discover my strengths. For the past 8+ years, I've been laser-focused on what I do best:

  • 📱 Mobile Application Development (Android, iOS, Flutter, React Native)
  • 💻 JavaScript Full-Stack Development (React, Node.js, NestJS)
  • 🏗️ Designing High-Performance, Scalable & Secure Systems
  • 🤝 Team Leadership & Cross-functional Collaboration

Industries I've worked in: Telecommunication, Transportation & Logistics, Garment & Apparel, Warehousing, Food Delivery, E-Learning, Early Education, Retail, Healthcare, and Real Estate.

16+ Years Experience
50+ Projects Delivered
10M+ Users Served

Skills & Expertise

📱

Mobile Development

  • Flutter & Dart
  • Android (Kotlin/Java)
  • iOS (Swift)
  • React Native
  • Ionic
🌐

Frontend

  • React & Next.js
  • TypeScript
  • HTML/CSS/SCSS
  • Responsive Design
  • Ant Design
⚙️

Backend

  • Node.js & NestJS
  • Express & Fastify
  • REST & GraphQL APIs
  • Microservices
  • Kafka
☁️

Cloud & DevOps

  • Azure (CosmosDB, Service Bus)
  • Firebase & GCP
  • Docker & CI/CD
  • Serverless
  • Cloud Functions
🗄️

Databases

  • PostgreSQL & MySQL
  • MongoDB
  • Redis
  • Firestore
  • SQLite
🎯

Leadership

  • Team Management
  • Technical Architecture
  • Agile & Scrum
  • Code Reviews
  • Mentoring

Featured Projects

A selection of projects I've led and contributed to over 16+ years

♻️
Featured @ Gapstars • Feb 2023 - Present

AfvalWijzer - Waste Management SaaS

Enterprise SaaS platform serving 50+ municipalities across The Netherlands. Built with a highly scalable custom notification service (emails and push notifications) serving 10+ million users. Led technical architecture and development.

Flutter NodeJS Angular Azure CosmosDB Service Bus
@ Gapstars • Feb 2023 - Present

Carv - AI Meeting Assistant

AI-powered platform that automatically turns hour-long meetings into minute-long highlight reels & summaries. Provides meeting transcripts, highlights, and AI Workmate features using OpenAI tools.

Flutter NodeJS Firebase GCP OpenAI LangChain TypeSense
Website
@ Nagarro • May 2021 - Feb 2023

Landmark Group - Self Checkout PWA

Progressive Web Application for indoor shopping and self-checkout at Max and LifeStyle stores in India. Features include size lookup, membership renewal, and seamless checkout. Led team of 10 engineers.

ReactJS TypeScript NodeJS TailwindCSS React Native
@ Nagarro • May 2021 - Feb 2023

Amway - E-Commerce B2C Platform

Micro frontends and backend-for-frontend architecture for the global B2C e-commerce platform. Enables sellers to provide services and sell products to their customers. Led backend team of 3.

ReactJS TypeScript NextJS NodeJS Micro Frontends
@ Zone24x7 • May 2018 - May 2021

Sprout - Early Education Platform

Mobile application automating workflows for early education services in Australia. Reduces paperwork, exceeds compliance standards, and streamlines operations for childcare centers.

Flutter NestJS Firebase GCP
App Store
@ Zone24x7 • May 2018 - May 2021

Brandix Warehouse Automation

Enterprise warehouse process automation for Sri Lanka's leading apparel company. Microservices architecture with event-driven design for inventory tracking and management.

ReactJS NodeJS NestJS Kafka PostgreSQL Lerna
@ Zone24x7 • May 2018 - May 2021

Katie - Retail Voice Assistant

Voice assistant for Kohl's In-Store Kiosk devices. Features product catalog search, online checkout, price verification, and gift card status using conversational AI.

ReactJS Electron Dialogflow Google Cloud STT Cloud Functions
@ Crowderia AB • Nov 2016 - May 2018

Food Runner - Delivery Platform

Revolutionary food delivery platform with extendable delivery system. Complete ecosystem with Consumer app, Rider app, and real-time backend services.

Android iOS NodeJS Firebase Pusher
@ Crowderia AB • Nov 2016 - May 2018

MyExetel - Telecom Self-Care

Customer self-care mobile application for Exetel, a major telecommunications provider in Australia. Manages broadband, home phone, and mobile services with usage monitoring and billing.

ReactJS Android iOS Monaca
Play Store
@ AppMonkeyz • Aug 2014 - Oct 2016

ClipCast - Media Content Platform

Hybrid mobile application for media content creation and management. Cloud-based video editing service for youth soccer highlights and wedding moments.

Android iOS PhoneGap Cordova
Play Store

Plus work on FlipKart, VF Corporation (Timberland, Vans, The North Face), Adobe AEM, and 40+ more projects...

View Full Portfolio on LinkedIn

What People Say

Recommendations from colleagues and clients I've worked with

★★★★★
"Sameera is an exceptional cross-platform developer with a specialization in Flutter. He possesses a deep understanding of the intricacies of this technology. His commitment to producing clean and well-documented code is commendable. I wholeheartedly recommend him without reservation."
TR
Tomas Radvansky Technical Architect Carv.com
★★★★★
"If I would describe Sameera in a single word, it would be 'Brilliant'! He maintains an unparalleled technical competency. I would rate him as one of the best engineers I have worked with over the years and he would easily make it to the top 3."
NS
Nuwan Silva Principal QA Engineer Backbase
★★★★★
"'Jack of all trades' is what comes to my mind when I think of Sameera. His ability to handle different technologies had a monumental impact on the projects. His ability to inspire younger engineers allowed us to create one of the most versatile teams."
IJ
Isuru Jayasooriya Technical Lead Axinom
★★★★★
"Sameera has a unique knack for technology, I would go as far as saying he is beyond full stack. Being able to quickly understand, adapt and take on unique challenges made Sameera a vital member of the team. I was always impressed with his work ethic."
SC
Sanuja Cooray CTO & Co-Founder Honest Greens
★★★★★
"Sameera is an amazing tech lead with all the skills and expertise of leading a technical team. He is a full stack engineer who always accepts challenges and wins them with a creative and innovative mindset. He guides and grooms team members to climb up in their career."
AK
Amali Karunanayake Programme Manager Zone24x7
★★★★★
"I was really impressed with his ability to multitask on projects. His contribution on research and development tasks made a dramatical increase in the success of projects. He always shared his expertise with coworkers and aided them to evolve."
GM
Ganidu Madapatha Senior Software Engineer Loblaw Digital
★★★★★
"He has very good technical skills and is able to quickly research and learn new things, demonstrated by the many proof of concepts he did. He also has excellent customer and team management skills. I would highly recommend him."
CM
Chamindu Munasinghe Senior Developer Sunstone Logistic
★★★★★
"Sameera is very passionate and has great vision for his work. His focus keeps everything moving smoothly, he makes sure all the deadlines are met. He is an excellent resource and a master at Android programming."
US
Umanga Sarathchandra Product Owner Xeynergy™
★★★★★
"I know Sameera as a hard working, friendly and very serious team player. He makes sure all the deadlines are met and whatever project he is working on meets the highest standards. He certainly can get my full recommendation."
DW
Dilan Wickramasekara Associate Tech Lead REDHILL

Let's Connect

I'm always interested in hearing about new opportunities, challenging projects, or just having a chat about technology. Feel free to reach out!

✉️
sdpsameera@gmail.com
💼
LinkedIn
🐙
GitHub
Say Hello 👋