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Schedule Interview NowMy name is Yern Voon O. and I have over 15 years of experience in the tech industry. I specialize in the following technologies: Full-Stack Development, AI App Development, AI Model Integration, Back-End Development, LangChain, etc.. I hold a degree in Bachelor of Engineering (BEng). Some of the notable projects I’ve worked on include: Round Here, WADAT, ETS Classroom Video Library, Negotiation Information System. I am based in Shah Alam, Malaysia. I've successfully completed 4 projects while developing at Softaims.
I am a business-driven professional; my technical decisions are consistently guided by the principle of maximizing business value and achieving measurable ROI for the client. I view technical expertise as a tool for creating competitive advantages and solving commercial problems, not just as a technical exercise.
I actively participate in defining key performance indicators (KPIs) and ensuring that the features I build directly contribute to improving those metrics. My commitment to Softaims is to deliver solutions that are not only technically excellent but also strategically impactful.
I maintain a strong focus on the end-goal: delivering a product that solves a genuine market need. I am committed to a development cycle that is fast, focused, and aligned with the ultimate success of the client's business.
Main technologies
15 years
3 Years
6 Years
1 Year
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AirAsia AI
RoundHere is a restaurant rating application that allows Facebook users to rate their favourite restaurant in a location. User could submit up to 3 favourite restaurant in a location, view the top rated restaurants in any location and view the favourite restaurant of their Facebook friends. My responsibilities: - The only developer - Coordinate with Web Designer to implement the HTML and CSS according to the sketch files. Technology Stack: - Frontend: Angular 6, Semantic UI, deployed in AWS S3. - Backend: API Gateway, Lambda - User Authentication and Authorization: Cognito with Facebook - External Services: Algolia Search, Algolia Places, Foursquare, Google Analytics, Addthis
This project involved developing a web application for tracking wireless sensors. It allows end users to do the followings: 1. Purchase sensors and attach to anything that the end users would like to track 2. Track the sensors’ locations in real time 3. Set up proximity alert, distance alert or linger alert. When the sensors move away from the configurable proximity, travel more than the configurable distance or stay stationary longer than the configurable time interval. The application will send out the email notification to the end users in different notification settings. This project consists of 2 parts: 1. an Angular2 Web Application deployed in Amazon S3. The web application communicates with the backend services through Amazon API Gateway and Amazon Lambda function. The locations of the sensors are displayed using Google Map. 2. A Nodejs batch job that deployed in Amazon EC2 which continuously receiving network packets sent by the wireless sensors, process the data, and upload to the database. The database used in this application is a PostgresSQL which runs in Amazon RDS. The database has PostGIS enabled in order to utilise geometry optimised functions to determine the location and distance between different geometry types. I am the core developer in this project (out of 2 developers). I’m responsible in designing and developing 90% of this project. Technology stack: 1. Angular2 with angular CLI and Bootstrap. 2. Google Map 3. Nodejs 4. Serverless Framework 5. PostgreSQL with PostGIS 6. Amazon S3, EC2, RDS, API Gateway, Lambda and SNS 7. Auth0 service
This contract consists of 2 projects. - The first project is covered under non-disclosure agreement. No details is available. Please check out client feedback. - The second project involved developing a nodejs web application for sharing more than 2000 videos with the application subscribers. The subscribers could easily browse and view these 2000+ tagged and edited videos which are related to educator professional development, and they could also create shorter video clip from these videos for use. The application also exposes a set of well-designed API for API subscribers to easily display and use these videos or clips from their own website. My responsibilities: - Consult customer on the most suitable technology stack to be used - Design and develop the process to store 2000+ videos in Amazon Web Service S3 and use Amazon Elastic Transcoder to transcode the videos in different format to support all browsers. - Design and develop video sharing API for API subscribers - Design and develop video usage analysis mechanism and billing UI for admin. - Provide support after production Technology stack used: - angular.js - twitter bootstrap - node.js - mongodb - AWS EC2 - AWS S3 - AWS Elastic Transcoder - Rackspace Objectrocket
This project involved developing a nodejs web application for school boards and school administrators to update salary and benefits information about Teachers, Paraprofessionals, Caferia, Clerical and Custodial. Other than data entry, it also provides a set of predefined reports that allow the users to view the data in many different ways, such as percentiles and rankings by district and dollar value. And also, a powerful Data Explorer allows users to create their own report by selecting districts, years, and the data fields. These reports allow users to do sophisticated sorting, filtering and also export the data to Excel and PDF formats. My responsibilities: - The only developer in this project - Consult the client on the most suitable technology stack to be used - Designing and developing the entire Nodejs backend - Designing and developing the data model in mongodb database - Designing and developing the entire UI using extjs - Deploy the application in Amazon Web Service EC2 instance - Provide support to project client after production Techonology stack used: - Extjs - Nodejs - Mongodb - AWS EC2 - Rackspace Objectrocket
Bachelor of Engineering (BEng) in Computer engineering
1998-01-01-2001-12-01