Halil Özgür

A news portal. Tech: PHP, Laravel, MySQL, Sphinx search, Memcached
* PHP/Laravel site & admin, JavaScript frontend
* Extensive SEO support

Calimlioglu is a classified site mainly for properties.
- Advanced filtering and faceting with per-category attribute sets
- Fully customizable from an admin panel
- Google Maps location selection, refined by the address

Responsibilities:
- Created the web front-end and back-end completely from scratch (started as the only developer on the project)
- Supported multi-language and multi-currency environments;
- Analyzed custom aggregations;
- Created and maintained the… Show more

Calimlioglu is a classified site mainly for properties.
- Advanced filtering and faceting with per-category attribute sets
- Fully customizable from an admin panel
- Google Maps location selection, refined by the address

Responsibilities:
- Created the web front-end and back-end completely from scratch (started as the only developer on the project)
- Supported multi-language and multi-currency environments;
- Analyzed custom aggregations;
- Created and maintained the hosting architecture using Docker, Heroku, and AWS;
- Auto-documented & tested JSON API for mobile apps.

Tech: Ruby, Rails, PostgreSQL, Memcached, Elasticsearch, Bootstrap, Sass, CoffeeScript, Slim, Active Admin, RSpec, Heroku, AWS Show less

Holistic sales training and exams. Tech: Ruby, Rails, PostgreSQL, Memcached, Sidekiq, Redis, Bootstrap, Sass, CoffeeScript, Slim, Heroku, AWS
* Admin panel for easy module/course/exam entry
* Specialized workflows and security checks using an authorization framework

Recipe recommendations for 2M+ Turkcell users. Tech: Ruby, Rails, EventMachine, SOAP, MongoDB, PostgreSQL, Solr, Capistrano

SMS API:
* Sends millions of SMS messages in minutes daily using concurrent EventMachine
* MongoDB aggregation for reporting and analysis

Web:
* Graphical reporting dashboard for the SMS API
* Custom relevance calculation

Antalya social travel reviews. Tech: PHP, Laravel, Elasticsearch
* Filters and aggregations
* Custom admin
* Security measures per OWASP Top 10

Consumer complaints & reviews. Tech: PHP, Laravel, Memcached, JavaScript
* Custom admin for easy creation/modification of modules
* Security checks
* Migration from WordPress
* Extensive SEO

Real estate classifieds. Tech: PHP, Solr
* Flexible schema with properties per category, property types (bool/number/multiple choice), required properties, etc. all customizable from the admin
* JavaScript & page load optimizations
* SEO, schema.org tags/properties

E-sirket is a leading company, product, and service directory. It features categorization and searching features with advanced detail pages. It provides facilities for creating company profiles, managing products and services, and maintaining a presence and points of contact.

Responsibilities:
- Optimized PHP, MySQL, and the servers extensively;
- Created a custom binary search in JavaScript auto-completion feature;
- Created faceted search and near real-time bulk index updates… Show more

E-sirket is a leading company, product, and service directory. It features categorization and searching features with advanced detail pages. It provides facilities for creating company profiles, managing products and services, and maintaining a presence and points of contact.

Responsibilities:
- Optimized PHP, MySQL, and the servers extensively;
- Created a custom binary search in JavaScript auto-completion feature;
- Created faceted search and near real-time bulk index updates using Solr;
- Created and optimized the frontend code for SEO, Scheme.org, and Webmaster Tools.

Tech: PHP, MySQL, Solr, JavaScript, jQuery Show less

Turkey's national news channel. Tech: PHP, MySQL, CSS
* MySQL: up to 65x performance optimization
* Frontend: CSS3, optimized CSS sprites, touch optimization for tablets, HTML5, Schema.org
* Custom admin for fast editing and fine-grained ordering

Private shopping e-commerce specializing in home decoration. Tech: PHP, MySQL
* Admin for fast editing, browsing, and filtering with custom reports, mass insert/update
* Integrations: email marketing, payment gateways (national banks, Mikro Ödeme, PayPal)
* Custom pricing, campaigns, shipping rules

iyi.net is a social review, product comparison, and sharing platform. It provides a social experience for finding and discussing products, using fine-refined qualities and attributes. It was dubbed "iyi.net: A social platform for finding the best product" by Webrazzi, Turkey's leading startup and technology news: http://www.webrazzi.com/2013/05/25/iyi-net-urun-karsilastirma/.

- Created an index/query tokenizer with JavaScript filters and weighted user search matching using Solr;
-… Show more

iyi.net is a social review, product comparison, and sharing platform. It provides a social experience for finding and discussing products, using fine-refined qualities and attributes. It was dubbed "iyi.net: A social platform for finding the best product" by Webrazzi, Turkey's leading startup and technology news: http://www.webrazzi.com/2013/05/25/iyi-net-urun-karsilastirma/.

- Created an index/query tokenizer with JavaScript filters and weighted user search matching using Solr;
- Created HTML/CSS of the home and detail pages, optimized for SEO and performance;
- Managed, optimized, and profiled the server.

Tech: PHP, MySQL, EER, Solr, jQuery, Nginx, PHP-FPM, Memcached, firewall Show less

Porttakal.com is a renowned and busy portal in Turkey. Tech: PHP, MySQL, Sphinx, JavaScript
* MySQL optimizations based on continuous monitoring
* Sphinx search with delta index merging
* Very customizable through admin

Whois.com.tr is one of the best-known and most-used and trusted Turkish whois and domain intelligence services. It provides advanced and detailed querying services, along with an option to register the domain.

- Created socket-based domain and IP whois;
- Created hand-made support for nearly all of the 200s of TLDs;
- Normalized and encoded data;
- Provided Unicode text processing for Turkish, Japanese, Chinese, Korean, etc;
- Created the frontend using HTML, CSS, Javascript,… Show more

Whois.com.tr is one of the best-known and most-used and trusted Turkish whois and domain intelligence services. It provides advanced and detailed querying services, along with an option to register the domain.

- Created socket-based domain and IP whois;
- Created hand-made support for nearly all of the 200s of TLDs;
- Normalized and encoded data;
- Provided Unicode text processing for Turkish, Japanese, Chinese, Korean, etc;
- Created the frontend using HTML, CSS, Javascript, and jQuery;
- Admin panel for management and analytics.

Tech: PHP, MySQL, JavaScript, jQuery Show less