Jairo Lozano.jpg

Heredia, Costa Rica

DOMAIN: Full Stack Developer

SUMMARY: Jairo has a strong Computer Science background with 10 years of success in 3 major areas of the industry: Development, Support, and Networking. He is working on his Masters in cybersecurity pending to complete in London this summer. He has lived and worked in UK and US and is open and interested in moving to a different country.



  • C#
  • Software Development
  • Microsoft SQL Server
  • SQL
  • JavaScript
  • Agile Methodologies
  • Databases
  • HTML5
  • .NET
  • Subversion
  • jQuery
  • MySQL
  • Web Services
  • CSS
  • Web Development
  • MVC
  • MVVM
  • XML
  • TFS
  • Scrum
  • HTML
  • Visual Basic
  • Visual Studio
  • Team Leadership


Fiserv – January 2018 - Present
Position: Software Engineer
Description: Net development

Qualco UK – November 2016 - November 2017
Position: Software Engineer
Description: Full stack net development

  • 2 similar projects have been worked on, both created from scratch
  • Main project aims to deprecate old silverlight application and add new business use cases
  • Among other functions, the app will manage users and roles, will display executive charts with valuable information for agents, will detail the status of most processes across the board
  • Multilayer, Database First and following Agile with Sprints and and stories in Jira
  • MSSQL, ASP.NET, Bootstrap, MVC driven, HTML5, jQuery, Javascript, Morris.js, DataTable.js

Mobilize.Net – February 2015 - September 2016
Position: Tech Lead Engineer
Description: Tech Lead for software migrations from VB6 into Net web applications.

  • After automated migration, bug-driven development was followed, and in some cases, entirely new features were coded as well
  • As Developer, full stack had to be addressed, mostly js and C# backend
  • As Team Lead the main responsibility was making sure goals were met for every sprint
  • Also served as the main communication channel between the customer and the employer for management and decision-making purposes
  • The project had teams in different locations, therefore I had to lead resources from San Jose, Bangalore, and Seattle

Toolset: C#, ASP.NET, SQL, MVC, MVVM, Javascript, jQuery, TypeScript, HMTL5, CSS, Kendo UI, TFS, SVN, Jira, Agile

Softwave Technology – January 2011 - January 2015
Position: IT & Software Solutions Consultant
Description: Software Development (web & desktop), Network Administration, and IT Support.

  • Net SMS Message Delivery System for Water and Municipality services: Winforms, Net4, SQL
  • Facebook for cars: Forum, geolocation, C#, MVC 3.5, MongoDB, WCF for services for mobile devices. jQuery, MySQL
  • Membership info-site for animal owners: CRM, Blog, Forum, payment, geolocation, Net 4.5, C#, MVC 4.5, Ninject, MySQL, jQuery
  • Real State Site: CQRS driven, Net 4.5, MVC, SQL, Mongo, Ninject, jQuery, Multipage Reporting
  • In charge of Hotel / Restaurant / Real State companies IT infrastructure, including network and PCs. System support and customer interaction
  • Lead for Interns or IT Associates

Desert Development Company – December 2009 - December 2010
Position: Software Support Engineer
Description: The purpose of the position was guaranteeing the best online casino gaming experience.

  • High level support for servers, websites and applications(gaming, back ends, web services)
  • Administration of configuration and certificates (.ini, .config and sql variables)
  • Full and partial deployments (hotfixes), new installations
  • SQL reporting, queries, jobs, xml generation
  • Software and network troubleshooting
  • Testing and bug detection
  • Worldwide customer interaction

Toolset: SQL Management Studio, Web Browser Debuggers, Fiddler, Notepad++, UltraCompare, Multi Remote Desktop tools

Soluciones Ubiccar S.A. – January 2008 - December 2009
Position: Software Developer
Description: Responsible for the correct execution and maintenance of different credit information systems under .Net 3.5 platform using C#, VB, ASPX, and SQL 2008, SourceSafe. Data ETL under SQL Server Integration Services 2008 platform with Microsoft Business Intelligence Development Studio.


  • Credit Score System: Maintained and supported many financial applications used to facilitate information for borrowers and clients
  • Monthly billing processing and reporting
  • Monthly multithreaded DB feed from many different database sources
  • SSIS package design and processing
  • Research on text search for SQL and Costa Rica "Address System" (Credit Bureau - Collections)
  • Integrating new Web Services at different locations (customers infrastructure)


Royal Holloway, University of London
-Master of Science (MSc), Information Security

Tecnológico de Costa Rica
-Bachelor's degree, Computer Science

Cisco Networking Academy at Universidad Interamericana
-CCNA2, Computer Systems Networking and Telecommunications

Fundación de Cultura, Difusión y Estudios Brasileños
-Associate's degree, Portuguese Language