Back-End Developer Jon Karlo

Jon Karlo

Senior Back-End Developer
16 years experience

£15 - £25/hour

Sign Up

A results-driven, customer-focused, articulate and analytical Senior .Net Software who can think “out of the box”. Jon Karlo is strong in design and integration problem-solving skills, with extensive experience in JQuery, C#, .NET, and T-SQL, Kentico, DotnetNuke. 

He has strong written and verbal communication skills and is very interested in a challenging technical track career in the software development environment.

Work Experience

Freelance Web Developer
August 2013 - Present


  • Maintain existing projects
  • Enhance features
  • Manage source control
  • Conduct Daily Scrum Meetings
  • Create tasks in JIRA
  • be involved in Database Design Planning
  • Technologies: Angular, ASP.NET MVC, SQL Server 2014, JQuery, Web API 2, 3rd Party Library PDF Clown
Senior .NET Web Developer
November 2009 - October 2013


  • Participated in a large team developing an all-encompassing school administration solution designed to handle enrollment scheduling, scholastic records for students and teachers, progress monitoring and financial billing for parents.
  • Designed and developed Alumni Portal for the school, including the backend.
  • Provided support and updates for the existing project.
  • Addressed queries use the online help desk developed for the school.
  • Technologies: Software Design, Software Development, Technical Support, Testing & Troubleshooting
.NET Web Developer
June 2010 - March 2013


  • Create functional and technical designs based on client’s instructions and specification.
  • Code, test and implement high quality software changes that are delivered on time and within budget.
  • Apply code standards appropriately to all development assignments.
  • Execute production tests, conduct initial results and investigate results.
  • Understand and adhere to software change control procedures.
  • Document and execute both unit and integration test plans.
  • Formally communicate status as required by the project manager.
  • Field client questions and requests, estimate software improvement requests, and support their subsystem in production which includes monitoring and continuous product stabilization efforts.
  • Adhere to policies and standards.
  • Perform other related duties as required and assigned.
  • Trains newly-hired members of the team about the functional structure of the system.
  • Technologies: Functional Design, Technical Design, Coding, Production Tests, Unit Testing, Integration testing, Team Leadership, Software Improvement
Software/Web Developer Team Leader
February 2008 - April 2010


  • Oversaw quality assurance of code releases; handled end-user questions; researched and resolved issues.
  • Served as team technical support and Team Lead during testing, training, and end-user support.
  • Collaborated with and guided team through development and testing.
  • Planned and organized testing, load testing, and performance tuning.
  • Collaborated with the Creative Department on the Graphical User Interface of the project.
  • Created templates for the project-based on the designed provided by the Creative Department (HTML, CSS).
  • Analysed the database requirements of the project.
  • Created a database structure for the project.
  • Created a SQL Script and Stored Procedure needed for the project.
  • Developed the web application base on the analyses and designed.
  • Provided support and updates for the existing project. Address client queries the soonest possible time.
  • Technologies: Quality Assurance, Technical Support, Team Leadership, Testing, HTML/CSS, SQL Script, Web Application, Testing & Troubleshooting

Bachelor of Science in Computer Science
Previous Next
Sign Up to View Candidates    > Sign Up    >

How many hours do you want the developer to dedicate to working with you?

What skillsets are you looking to hire?

When do you need your developer to start ?