Sahan Rathnasekara

Experience

• 2023 - Present 2y : 6m

  Product Owner @ Diyawanna DTS

  LK - On-site

  Summary:

  • Leading product development and business operations for family elderly care business while maintaining strong IT focus. Developed and launched multiple cross-platform mobile applications and web solutions, implementing cloud-based infrastructure and optimizing database performance for improved user experience.

  Responsibilities:

  • Designed and optimized database models for improved application performance, achieving 40% faster query response times
  • Created intuitive UI/UX designs with responsive layouts for web and mobile interfaces, increasing user engagement by 30%
  • Managed full product lifecycle from concept to deployment on multiple app stores, reducing time-to-market by 20%
  • Integrated data visualization tools to present complex information in user-friendly formats, improving client satisfaction rates
  • Deployed applications to various platforms including Playstore, Amazon Appstore, and AppGallery
  • Handled cloud deployments on AWS and Alibaba Cloud with optimized configurations

  Achievements:

  • Successfully transitioned family business to digital operations with integrated management systems
  • Published multiple mobile applications across different app stores with consistent positive user feedback
  • Reduced operational costs through efficient cloud infrastructure implementation
  • Improved application performance metrics across all platforms through database optimization

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  • HTML5
  • SCSS
  • Bootstrap
  • JavaScript ECMA6+
  • TypeScript
  • PHP
  • Laravel
  • Angular
  • Ionic
  • Java
  • Spring
  • NodeJS
  • Postman
  • Git
  • GitHub
  • DB
  • MongoDB
  • Firebase
  • AWS
  • Alibaba Cloud
  • amCharts
• 2019 - 2022 2y : 5m

  Software Engineer - ASE | SE @ Zilingo Sri Lanka

  LK - On-site

  Summary:

  • Developed operational intelligence applications with real-time data visualization dashboards for manufacturing clients. Created quality control and production monitoring systems while implementing efficient database solutions for large-scale data management and retrieval.

  Responsibilities:

  • Implemented MongoDB and Druid databases for efficient data storage and retrieval of 1M+ daily records
  • Designed mobile application for tracking factory operations across departments, used by 500+ concurrent users
  • Optimized application performance for handling large datasets and concurrent users, reducing load times by 45%
  • Collaborated with international development teams across 3 countries to deliver integrated solutions
  • Designed data visualization interfaces for management decision-making with actionable insights
  • Integrated systems across different factory departments for seamless data flow

  Achievements:

  • Successfully implemented real-time monitoring system across factory floors with minimal latency
  • Developed visualization dashboards that improved management decision-making efficiency by 40%
  • Created mobile solutions that enhanced operational visibility across all departments
  • Reduced system response time by 45% through database optimization techniques

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  • HTML5
  • CSS3
  • JavaScript
  • TypeScript
  • Angular
  • Ionic
  • Java
  • MongoDB
  • Druid
  • Slack
  • Jira
  • Jenkins
  • Bitbucket
  • amCharts4
  • Play Framework
• 2018 - 2019 1y : 2m

  Software Engineer - Intern | ASE @ MG Consultants

  LK - On-site

  Summary:

  • Developed web and mobile applications for construction project management, focusing on data visualization and intuitive interfaces. Created solutions that reduced complexity and connected users with critical information through responsive designs and efficient code organization.

  Responsibilities:

  • Implemented responsive designs with Bootstrap framework for seamless desktop and mobile experiences
  • Reduced application complexity through efficient code organization, improving maintainability by 25%
  • Developed user-friendly interfaces for critical information display, reducing training time for new users by 50%
  • Created mobile companion applications for web platforms to enhance accessibility
  • Implemented features to simplify complex project management workflows
  • Designed intuitive dashboards for at-a-glance information access

  Achievements:

  • Successfully implemented mobile companion app for web application with synchronized data
  • Created visualization dashboards that simplified complex project data for non-technical users
  • Developed interfaces that reduced information access time by 50%
  • Improved application maintainability through modular code architecture

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  • HTML5
  • CSS3
  • PHP
  • Laravel
  • JavaScript
  • Bootstrap
  • Ionic
  • Angular
  • MySQL
  • Multiple Charts libraries