PostgreSQL Developer Vance


Senior PostgreSQL Developer
11 years experience

£15 - £25/hour

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Throughout his career, Vance has developed several windows apps, web apps, and mediation service. He has already created an open source project(; he is also planning to create a better implementation of Activerecord, a mediation application server, along with a more flexible workflow engine which will both be released as open source.

His specialities include: ASP.NET, ASP.NET MVC, ASP.NET Core, C#, VB-Classic, VB.NET, LINQ, WCF, WPF, NHibernate, Log4Net, ActiveMQ, .NET Framework 1.1, 2.0, 3.0/3.5, Mono Framework, MS SQL Server, PostgreSQL, Oracle 10g/11g, pl/SQL, pl/PgSQL, pl/Java, Ubuntu. 

  • Has over 10 years of C# .Net Programming experience 

  • Has more than 13 years of experience in Back-end Development - System Design

  • Has 13 years of experience in SQL Query

  • Has over 5 years of Web API and RESTful API 

  • Has 4 years of experience in AWS

Work Experience

Senior Software Developer
August 2016 - Present


  • Develop the 4th iteration of the IBOS - IBOS 4.0.
  • Provide technical knowledge for other products being maintained by the company.
  • Technologies: .Net Programming and Development, IBOS, IBOS 4.0
Senior Software Developer
April 2015 - July 2016


  • Developed a web-based application to visualise heart-beats using ASP.NET MVC 5, Greensocks, and SignalR.
  • Maintained the web sites of QuestSys written in ASP.NET 2.0.
  • Performed proof-of-concept using .NET development on mobile devices through Xamarin.
  • Technologies: ASP.Net MVC 5, GreenSock, SignalR, ASP.Net 2.0, .Net Development, Xamarin, Web Application
Senior Software Developer
November 2014 - April 2015


  • Performed several R&D and feasibility studies for different clients and even for internal projects.
  • Worked on the development of an internal recruitment app using ASP.NET MVC 5 and Web API, and Xamarin for mobile development while simultaneously leading the team.
  • Led, designed, and trained a team to develop an internal time entry system. After 2 months, the interns reached the level of junior developers and can be deployed to different projects.
  • Technologies: R&D, ASP.Net MVC 5, Web API, Xamarin
Associate/Software Developer
February 2011 - May 2014


  • Maintained a time-reporting system written using a legacy Oracle-pl/sql SDK and deployed in 1998.
  • Provided support to the application.
  • Gradually wrote/migrated it to an ASP.NET 3.5/4.0 application.
  • Migrated a newly-developed application from Entity Framework to NHibernate ORM.
  • Developed secured external services.
  • Technologies: NHibernate, ORM, ASP.NET 3.5/4.0, Oracle PL / SQL, SDK
IT Specialist/.NET/Mono/Java
March 2008 - January 2011


  • Designed the unification of multiple in-house systems like remittance, e-loading, and VoIP service.
  • Designed and implemented the PGC Retail Gateway(PRG). This is a mediation gateway to interface with third-party service providers like Smart's and PLDT's e-loading system, and bills payment. This mediation gateway is ready to interface with any kind of service providers like bank deposit/fund transfer, online ordering, and many more.
  • Designed PGC Remittance System(PRS), the re-write project of the existing Online Padala System(OPS). This re-write project supported multi-currency and implementation of new business rules. Also performed as the 1st team-lead of the project, but was pulled-out half-way for another project.
  • Designed the Customer Wallet System(CWS). This is the internal payment system for all of the products handled by PGC.
  • Maintains existing systems like the OPS(remittance system), OBPM(Online Bulk PIN Management, online purchasing of PINS for MVNOs), Corporate Retail Gateway Client(client for Smart's e-load system) and CASWeb(customer activation system and helpdesk software). 
  • Technologies: Web Designing, .Net Programming and Development, Mono Framework, Java
IT Specialist/Web Developer/System Administrator
November 2007 - March 2008


  • Maintained the media monitoring system.
  • Implemented the TV and Radio monitoring system from the recording server to delivery on the web-site.
  • Deployed web-server, proxy server and mail server.
  • Technologies: Web Servers, Proxy Servers, Mail Servers, .Net Programming and Development
Junior Developer/Web and Application Developer
November 2006 - November 2007


  • Maintained several systems related to payments and auditing.
  • Designed and implemented a cash-advance system for staffs who travel abroad.
  • Designed and implemented an administrator's tool-set in managing servers and workstations in offices, service centers, and drop-points.
  • Technologies: Maintenance and Updates, Web Designing, .Net Programming and Development

Bachelor of Science in Computer Science
AMA Computer University
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