- Part-Time Contract
- Ext JS
I am a responsible and hardworking developer, a fast learner, always trying to deeply analyze the problem before proceeding. I have extensive experience of working with existing undocumented code and bug fixing.
I am developing database projects since 1993. Specializing in schema design, complex queries/procedures design/optimization. Mostly works with PostgreSQL, FirebirdSql, less with MySQL.
Since 2000 I am developing full-stack projects with core PHP. Now I am using Symfony API Platform to quickly develop efficient REST APIs and concentrate on front-end development.
As front end developer specializing in ExtJs. Has worked more than 5000 hours with ExtJs 6.x/6.7 (more than 2000 hours with modern toolkit 6.6/6.7). Have several successful migrations to Ext 7.
I have experience in fast successful joining big existing projects, developed for many years, and creating new projects from scratch as a single developer or a team.
Various database projects
Various PHP local projects
ExtJs Developer, Westernacher Solutions GmbH, https://isidor-software.de/.
Mar. 2016 – Jul. 2017
I was invited as ExtJs expert to lead the migration from 3.x application to 6.x, modernize it, develop a mobile version with Modern toolkit
ExtJs Developer, Criterion HCM, https://www.criterionhcm.com/
May 2018 – Apr. 2019
I was invited to help speed up Criterion application, bug fixing, and improvement
Various Upwork projects
Since Dec. 2015
Top-rated, 100% success rate