Олександр

OLEKSANDR KOSHELIEV
Terihivska st 24, Kharkiv [open contact info](look above in the "contact info" section)
[open contact info](look above in the "contact info" section)
CV

WORK EXPERIENCE
web-developer
Diamond Pay, Kharkiv (Jul 2021-May 2024)
Work with a high-loaded product in the field of financial operations. Integration of multinational payment systems with a full cycle of turnover: generation of invoices, payment acceptance, transfer to bank accounts, chargebacks.
Creating an acquiring environment to support the work of client financial orders. Development of multi-server interaction of command-oriented processes. Development of an api-oriented spa template for financial operations. Calculation of various operational data including reports,
Stack: PHP (Symfony 2.8, 5.0 +Doctrine), Mysql, RabbitMQ, Redis, Haproxy, VueJS, Git

web-developer
Besplatka, Kharkiv (Jul 2020 - Jul 2021)
Participation in a successful commercial project bon.ua. Development of tools for promoting client ads. Processing of batch client data. Frontend development. Code optimization and refactoring.
Stack: PHP (Yii2), Mysql+MongoDB, RabbitMQ, Redis, VueJS, Docker.

web-developer
Holbi Group, Kharkiv (Jun 2012 - Jul 2020)
Development of commercial sites based on various systems such as osCommerce, Magento, ZenCart etc
Participation in the development of a multifunctional platform Trueloaded.
Integration payment systems: paypal, braintree, stripe, moneybookers, authorize.net, worldpay, dotpay, bankasella, klarna, liqpay, intercassa etc. Developing transaction system for cluster of payments that use refund&void methods.
Developing price modules for e‑commerce system to present competitor price based on price discount, quantity discount, group discount. Also developing more flexible modules like promotions based on basket amount, basket sum and other things. Obtaining bonuses for customer actions.
Development of modules for working with analytics, adwords, tag manager, website verification, e‑commerce tracking. Working with Google measuring protocol to obtain and forwarding data, collecting data from Google Analytics and preparing reports, Google maps – rendering, clustering, routing. reCaptcha. Cloud Printers integration.
Integration shipping modules for e‑commerce systems based on price cost, weight cost, delivery zones, delivery date, etc.
Design and refactoring of architecture, programming the concepts and e‑commerce decisions.

Stack: PHP (Yii2), Mysql, Bootstarp.

EDUCATION AND QUALIFICATIONS
computer science specialist
KNURE, Kharkiv
analytic of informational systems and technologies

2000 - 2004

bachelor
Patent and computer college, Kharkiv
1996 - 2000

SKILLS
Symfony, Yii
MySql, MobgoDB
Redis, Memcached
JS, jQuery, Bootstrap, VueJS, HTML, CSS
RabbitMQ
REST, SOAP, RPC
SVN, Git, Docker