Sophisticated yet accessible solutions, along with an excellent level of service that provides our customers with great user experience at attractive rates.

I manage AWS services for clients, write code for specific web / mobile applications & design/implement infrastructure for DB/backend. Stack: Yii2 PHP / MySQL RDS, JS, ElasticCache, NGINX, EC2/S3Services: AWS, DigitalOcean, RSCom (SMS), Prime (AirTime), Beezz (MVNO)POPGlobal is my main client, a group of privately held companies providing edge telecom and finance services to consumers around the globe. Noteworthy projects: - WizerFi - unlimited global WiFi with one MVNO device- BunceIt / POPAirTime - instantly topup any mobile prepaid SIM (also B2B version)- CDR Viewer - log aggregator & report generation for MTN Uganda mobile operator

One of the biggest players in the online dating industry, DG International owns and operatessome of the largest and most popular casual dating websites on the Internet. My role was todetermine if new technologies would increase the performance of our sites and actuallyimplement them when needed. Stack: NGINX, PHP-fpm, MySQL, MemCache, Redis, Sphinx;AWS: EC2/S3, RDS< ElasticCache, Cloudsearch, Lambda, SES;Coding: TDD PHP/Yii, HTML, CSS/SASS, JQuery/ExtJS, Sencha, GIT; Since August 2016 I was Lead Developer on 10 out of 12 company projects.I implemented Payment Solutions (with 3DS where possible): NMI, AuthorizeNet, NetBilling, CCBill, RocketGate, CommerceGate, Bill1st, CentroBill. I was involved in obtaining the PCI Compliance (L2) for our company. All these payment options go trough a balancer which was designed to route payments to specific gateways based on given parameters (country, card type, history) and also to retry specific failed transactions in cascade until we either succeed or we exhaust all our billing options.I have written code for:- frontend/backend/daemon processes (multithreaded);- email marketing - transactional/batch - SendGrid/StrongMail;- geo-based search - geoDB & Sphinx, CloudSearch;- implementation of centralized email database & centralized error monitoring;- usage and monitoring of AdServer - OpenX/Revive & in-house built mailer;Code is written using TDD (5k PHPUnit tests on codebase), for scalability / traffic spikes (over 20mil. clients, optimized SQL queries / caching results). I've implemented various API's from/for partners (XML/JSON/REST, server/client), wrote functional tests using Selenium & SauceLabs.

Coded: HTML, CSS, PHP / Symfony , MySQL / Doctrine, Flash, Javascript.I also have done network & WebServer administration for clients.I was project manager (AJA Registrars Romania, ICR - Romanian Cultural Institute, ClassicDome, HexaDome, ErcPress), managed finances / clients / invoices & was ISO 9001 quality responsible.

I maintained company web-store (blindsuk.net), did conversion from old PHP4 classless code to OOP - PHP5 / Code Igniter framework, JQuery; developed API's for partners & suppliers, integrated with ERP; developed new similar web-store(s) using same framework/codebase.I developed an ERP (virtual warehouse) to gather all data from webstores, generate reports, stock management, product SEO management, order components trough suppliers API's, automated time-rotating discounts, etc.Always was an AGILE/SCRUM advocate, implemented DSM, GIT versioning system.

I have written code for frontend / backend / daemons / email marketing using TDD in an AGILE, SCRUM environment, optimized for heavy traffic. I implemented API's from different partners (XML, HTTP), done functional tests using external service - SauceLabs and written scripts for tests using Selenium.Used technologies: AWS EC2 & S3, MySQL (MyISAM, InnoDB, Percona, AWS RDS), NoSQL (MongoDB, AWS DynamoDB), MemCache, Redis, ElasticCache, SVN/Git, PHPUnit.Written code in: TDD PHP / Yii, HTML, CSS, javascript / jQuery / CoffeeScript, bash.

Linux admin, qmail, router, web based project management. I also provided IT consulting - acquisition of new equipment, IT support / helpdesk / backup - over 50 computers. I implemented VoIP - Asterisk (Romania-Libya), virtual machines - VMWare / ProxMox, documents storage policy (cloud).