Experience

SmartPesa

• Singapore
• Financial Services
• 1 - 100 Employee

• Back End Developer

  • Jan 2016 - Present

  Develop, enhance and maintain codebase for SmartPesa intelligent gateway with range of mPOS Bluetooth, Standalone terminal and Android EDCs payment devices Responsibilities: Manage deploy servers, implement new features - Responsibility on backend stack - spServe, spManage, spRouter, spWorkflow - Implement JSON API - Investigate potential and urgent bug - Custom, create module, dashlets, integrate Elasticsearch - Refactoring slow query, T-SQL and complex method - Support Addons: + Windows SDK - nuget lib + SocketPay - self host, tcp, demo - Various R&D and prototyping + Blockchain ZMQ/RPC interface, USSD + Angular client portal Technology: .NET, WEB API, PHP, SQL, ZMQ



Infinity Blockchain Labs

• Vietnam
• IT Services and IT Consulting
• 1 - 100 Employee

• Web Developer

  • Oct 2017 - Mar 2020

  Project: Quanta Period: Otc 2017 - present Position: developer Description: Lottery system base on blockchain tech Responsibilities: Backend, frontend - Refactoring workflow, source code Technology: nodejs, reactjs, angular, mongodb Project: Quanta Period: Otc 2017 - present Position: developer Description: Lottery system base on blockchain tech Responsibilities: Backend, frontend - Refactoring workflow, source code Technology: nodejs, reactjs, angular, mongodb



Netvis Network Service And Solution

• Web Developer

  • Jun 2015 - Sep 2017

  Project: Lottery Period: Apr 2016 - Sep 2017 Position: Dev, support Description: Lottery system: - CMS: manage lotto no, lotto ticket, result, reward, user …. - Public web - User's mobile app - Agency's desktop app Responsibilities: Support team - Development - Management and control source code server - Unit test, integrated test Technology: php (codeigniter), sql, .net Project: Hrm Period: Apr 2017 Position: Dev Description: Hrm system custom OrangeHrm, create module, new role Responsibilities: Plan and implement - Sync timesheets, issues, projects, customers from redmine to hrm (task and web) - Plugin calculate point for redmine Technology: php (symphony), mysql, redmine Project: Freelancer's project Period: Fed 2016 – Aug 2016 Position: freelancer Description: Manage game system, ATM finder web's CMS Responsibilities: Plan and implement Technology: php (cakephp, YII), mysql Project: mdware Period: June 2015 – Jan 2016 Position: Sub Leader Description: mdware is web app provide supermarket, drugstore. Some features - Automatic and manual order, PDA - Management delivery, voucher - Create voucher: delivery, transfer, return good Responsibilities: Implement front end, backend, manage and review function - Assign task, estimate, manage process - Technical support - Business logic support - Unit test, integrated test - Report Technology: HTML, JavaScript, Oracle, jsp



Uniccs Co., Ltd.

• Japan
• IT Services and IT Consulting
• 1 - 100 Employee

• Team Lead

  • Oct 2012 - May 2015

  Project: R-Intelligence Period: Aug 2014 – May 2015 Position: Team Leader Description: Use journal data, analysis and create report according to customer requirements. Responsibilities: Implement the tasks and review code. - Assign task, management process - Business and technical support, training Tool: Windows command, Sybase SQL, Universe, Web Intelligence Project: WebTaurus Period: Oct 2012 - May 2015 Position: Team Leader Description: WebTaurus is web app provide supermarket, drugstore. Some features: - Management product - Automatic & manual order, PDA - Management plan (promotion, safe off) - Shops transfer - Management inventory with each item - Management profit Responsibilities: Implement front end, backend, manage and review code - Assign task, management process, performance tuning - Investigate potential bug - Technical support, training - Unit test, integrated test Technology: CSS, HTML, JavaScript, Servlet, DB2, applet, jsp, linux command... Project: UDB Period: Aug 2014 – Oct 2014 Position: Software Engineer Description: another version of WebTaurus manage and setup web app by database configure only Responsibilities: Implement backend, front end - Performance tuning Technology: PostgreSQL, VBA, Javascript, html Project: Mobility Period: Mar 2013 – Jul 2014 Position: Team Leader Description: Project WebTaurus apply newer technology Responsibilities: Implement backend, front end, review and manage code. - Assign task, management process - Business and technical support, training - Investigate bug - Technical support, training - Unit test, integrated test Technology: CSS, HTML, JavaScript, Jquery, ajax, servlet, jsp...



Lac Viet Computing Corporation

• Vietnam
• Software Development
• 1 - 100 Employee

• Software Developer

  • Mar 2011 - Sep 2012

  Project: PMS Period: Jun 2012 – Oct 2012 Position: Software Engineer Description: Project for SaiGon Posttel company Responsibilities: Investigate and fix potential bug, performance tuning Technology: Win Form, MS SQL Project: PMS 247 Period: Mar 2011 – Jun 2012 Position: Software Engineer Description: Project for 247 company (logistic company). Some features: - Management mailer - Revenue, profit report - Postal code Responsibilities : Implementation of functional requirements. - Design - Business analyse - Deployment Technology: MS SQL, Silverlight, Win Form C# (Web service, ADO, LinQ, asp ..., Entity)