Лучшие фрилансеры
53
Java · Веб-программирование
Таллин, Эстония
Talk is cheap, show me the code)
665
2 0
Petro Gordiievych
Career Overview
Java/JavaScript Enterprise Applications full stack developer with 8+ years of experience in the wide area of development and advanced methods of teamwork and management.
QualificationsJava, JavaScript, Swift, Python, TypeScript, MySQL, PHP, CSS, HTML, JSON, XML, AJAXSoftware architecture and programmingAlgorithms, Strong understanding OOP, Design patternsMySQL Database design and optimizationApache Tomcat 6,7,8, Glass Fish, NodeJSMaven, Ant, GruntSpring, Struts, Hibernate, jUnit, SeleniumAngularJS, jQuery, Bootstrap, Protractor, JasminejHipster, PlayFrameworkEclipse, PyCharm, Intellij IDEA, Sublime, Vim, Notepad++Jira, Trello, KanbanFlowGit, SVN, CVSExperience in projects with legacy codeWindows, Linux, MS-DOSTensor Flow, OpenCV (as hobbies)
Accomplishments
Software developmentEnterprise J2EE application (http://tech4trade.net/) for managing the whole cycle of purchase/delivery process between buyers and suppliersMobile app (Android and iOS hybrid HTML5/JS based on Apache Cordova) which allow QC inspectors perform inspection on the factory and synchronize data in real time with server to show customer how inspection is goingWarehouse J2EE app (http://120.24.168.27/ - server part and mobile app) which allows factory salesperson get the latest information about the product (amount, prices) and create order lists for customers from the mobile phone app, synchronize it with the server, prepare reports, etc.Complex GeoJSON processor. Python script which fetching GeoJSON data from the server, process it (traversing through JSON, assembling, filtering, etc.) and compress according to specific algorithm. Script exchanges data with REST servers, ORDB (Oracle, PostgreSQL), CouchBase. I created this script from the scratch, just followed specification. During the development I was using several different python libs.
Standalone java app which automates reports building process for QC inspectorsPHP module which allows web marketing company track customers which belong to specific projects by phone number and special codeC++ App for science center “TEZIS” (Kiev, Ukraine), which allow calculating coordinates of tool by measuring acceleratesE-commerce websites, internet shops, web blogsSoftware system architectureRedesign entire project which was 7 years old to be able to run well with latest technologiesIT team managementManaged IT team (have the experience to manage international team), resolved communications problems, implemented Agile, deployed and customized Jira.Work experience
Luxoft (senior full stack developer), Kiev, Ukraine from 09/29/2017 – nowServer Application (Java/JavaScript: Spring, Karaf, PredixSDK, Angular, etc.)Python (perform geojson data, fetch from remote server, convert, upload to third server, etc.): lz4, requests, cx_oracle, psycopg2, threading, math, numpyMobile Applications (Android, iOS)Mobile enterprise projectSBE International (head programmer), Ningbo, China from 11/11/2011 – 09/28/2017Full stack Java developmentDevelopment and optimization DBDeployment on the server, organization server environment, DevOpsFrontEnd developmentAndroid/iOS development (under PhoneGap/Apache Cordova)NeoProfit (WebDeveloper), Kiev, Ukraine 01.2010 until 10.2010Full stack web developmentEducation and training
Warsaw Politechnic University 09/01/2014 – 07/01/2015
PhD program on the mathematical department. Study “Artificial Intelligence”, subject “Human-like Chess game”
University “Kiev Politechnic Institute”, Kiev, Ukraine 09/01/2005 – 06/30/2011
Faculty of Radiotechnic, specialization “Information security and Bank’s equipment”. Master degree with awards.
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https://telegram.egor.fun
Technical qualifications:Proficiency in: PHP, MySQL, JS, HTML, CSSExperience with: Linux, Bash, SSO, Keycloak, Redis, ChocolateyGood knowledge of: OOP, MVC, DDD, SOLID, REST APIFrameworks, CMS, Tools: Yii2, Kohana, Codeigniter, Laravel, Koseven, Bootstrap, JQuery, Bitrix, Opencart, Composer, Git, JIRA, Docker, Trello
Professional experience:10.2021 – 05.2022 PHP Backend Developer / BtcbitResponsible for developing of backend of web applicationsResponsible for developing of frontend with backend integrationResponsible for maintaining of production critical systemsBug fixing
02.2020 – 10.2021 PHP Backend Developer / ВиЯрResponsible for developing of backend of web applicationsResponsible for developing of frontend with backend integrationResponsible for maintaining of production critical systemsBug fixing
03.2019 – 09.2019 PHP Backend Developer / One HubResponsible for developing of backend of web applicationsResponsible for developing of frontend with backend integrationResponsible for maintaining of production critical systemsBug fixing
02.2018 – 05.2018 PHP Backend Developer / White Label IT OutsourcingResponsible for developing of backend of web applicationsResponsible for developing of frontend with backend integrationResponsible for maintaining of production critical systemsBug fixing
2013 – 2016 PHP Backend and Frontend Developer, Sadko LLCResponsible for developing of web applicationSEOTechnology: OpenCart, MySQL, Drupal, Javascript (JQuery), HTML, CSS3
2010 – 2013 Systems Administrator, IT Department, SAVSERVICEResponsible for maintaining of enterprise IT network
Main references:DumpingRole: Full Stack PHP DeveloperTechnology: PHP, Framework Kohana 3.2, JQuery, Curl, Simple HTML DOM, MySQL Duration: 8 monthsProject goal: price monitoring, comparison and repricing tool, meant to help eCommerce professionals keep an eye on their competitors, or retailersMy responsibilities: was fully responsible for the development of the entire application
Product transfer Hood AuctionRole: Full Stack DeveloperTechnology: PHP, Yii2, Curl, SimpleHTMLDOM, MySQL, APIDuration: 3 monthsProject goal: Program for the mass transfer of products from the auction Hood.de in the AmazonMy responsibilities: was fully responsible for the development of the entire application
Amazon CheckerRole: Full Stack DeveloperTechnology: PHP, Laravel 5, Curl, SimpleHTMLDOM, MySQL, API, PHPExcelDuration: 3 monthsProject goal: The calculation of the product's popularity based on the sales of the amount products. Create report from Excel.My responsibilities: application development, layout, business logic
Online stories:Sadko-shop.com, Korzo.in.ua, Betoniar.ua, Bellson-shop.com.ua, Agropark.in.ua, Gardentool.com.ua, Bellson.uaRole: Application development and promotion in search engines (SEO)Technology: Opencart 1.5.6, Excel, MySQLDuration: 2 YearsProject goal: Internet Marketing. Sale of garden equipment and LED lampsMy responsibilities: application development, SEO optimization
Carpaty-enjoy.uaRole: Responsible for developing of backend and frontendTechnology: PHP, MySQL, JS, ORM, Framework Kohana 3.2Duration: 2 monthsProject goal: Corporate Site, Brand presentationMy responsibilities: Application development, SEO optimization
Stock-market.proRole: Responsible for developing of backend and frontendTechnology: PHP, MySQL, JS, ORM, Framework Kohana 3.2, PHP Simple HTML DOM, CurlDuration: 6 monthsProject goal: emit user actions on a Remote Web ServerMy responsibilities: application development, backend and frontend
Поддержка и администрирование LAN, WAN;
Опыт настройки и поддержки оборудования Сisco, Mikrotik, HP, Ubiquiti;
Настройка Site-to-Site и Remote Access VPN;
Настройка Wi-Fi контроллеров и точек доступа Ubiquiti;
Настройка межсетевых экранов Cisco Firepower;
Техническая поддержка рабочих станций Microsoft Windows 7/10
Администрирование Windows Server 2012r2 (AD и Group policy, DNS, DHCP, WSUS, WDS, Terminal Server, File Server, NPS, Print server);
Nas сервера: Qnap, Synology
Администрирование Linux (Ubuntu, Centos);
Виртуализация серверов Virtual Box, VmWare, KVM, VMware;
Контейнеризация Docker;
Система мониторинга Zabbix;
Базовые знания: Ansible, Git, GitHub, Jenkins, Bash, PowerShell.
Парсинг сайтов на языке Python
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Network: AD, DC, GP, DHCP, DNS, LAN, WLAN, FTP, SFTP, VoIP, PROXY, TCP/IP, VPN, POP3, SMTP, IMAP, Terminal Server, Samba;
Network equipment: Mikrotik, Zyxel,D-Link,TPLink, HP and so on;
IT Security: Proxy, IPSec(and the other VPN’s), IPTables, TrueCrypt, Antivirus software;
OS: Windows: 7, 10, Server 2016, 2019;
Linux: Ubuntu, CentOS, Debian, Mint;
SQL: MS SQL Server 2008/2012, MySQL, PostgeSQL, MySQL, Firebird;
Email: MS Exchange server, Postfix, Sendmail, Exim;
VoIP system: Asterisk;
Monitoring system: Zabbix, Nagios, Prometheus, Grafana, ELK stack;
Virtualization system: KVM, Hyper-V, Proxmox;
Cloud: Google Cloud, AWS, Azure, DigitalOcean, Oracle;
Docker, Kubernetes, Helm;
Remote Control: RDP, SSH, VNC, Radmin, Teamviewer and so on;
Console/Scripting: CMD, Terminal, PowerShell, Bash, AWK, Ruby;
Web/HTTP Server: Apache2, Apache Tomcat;
Proxy Server/Load Balancer: Nginx;
Project management system: Atlassian JIRA, Redmine;
Version control system: Git;
Scripting: bash, Powershell, Ruby, Python;
Programming: Ruby;
IDE: VC;
CI/CD: TeamCity, Jenkins, Puppet, Terraform, Ansible, Hashicorp software;
Atlassian stack.
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Yuri Korman SUMMARYDeveloper/Software Architect with 13 years in IT, specializing in desktop and web application development, GUI interfaces design as well as application architecture design, code review and re-engineering. Advanced knowledge and experience in object-oriented programming on C#. Has wide experience in code development. Web server programming with PHP using frameworks as Yii, Symfony from 2 to 4 versions. Web client programming with JavaScript using libraries as ReactJS, jQuery, Mootools and framework as Angularjs and css framework as Bootstap 2/3. Mobile client programming with React Native. SKILLS AND EXPERIENCE YearsProficiencyLanguagesPHP7ExpertJavaScript5ExpertC#5ExpertHTML7ExpertC++/C2IntermediateCSS/CSS37IntermediateBash2IntermediatePHPYii4ExpertSymfony2-44ExpertTWIG4IntermediateSmarty6ExpertJoomla 1.5 - 3 CMS6ExpertDoctrine24ExpertOperating SystemsUNIX (Linux, FreeBSD)8ExpertWindows (7/2000/NT/XP/95)12ExpertTechnologiesReact NativeIntermediateReactJsIntermediate jQueryExpert jQuery UIExpertjQuery MobileIntermediateAngularjsIntermediateNodejsBeginnerAjaxExpertWeb SocketExpertFacebook APIExpertGoogle Map APIIntermediateYandex Map APIIntermediateYQL(Yahoo Query Language)IntermediateVK APIIntermediateOAuth, OAuth2ExpertRESTExpertDatabases/Tools/ProductsMySQL, PostgreSQL, SQLite, MS SQL Server 2000-2008ExpertNetBeans IDE, PHPStorm IDE, MS Visual StudioExpertLiquibaseExpertGruntIntermediateBrunchExpertComposerExpertGITExpertRedisExpertMemcachedExpertApache, Apache2ExpertNginxIntermediatePostfixIntermediateAntExpertMongoDB1IntermediateForeign languages Ukrainian, Russian, English(Elementary) EDUCATION MS & BS In Computer Science, 2006National Technical University of Ukraine Kiev Polytechnic Institute, NTUU KPI , Faculty of Computer Science and Engineering. WORK EXPERIENCE “OS-Direct” 02/2003 – 11/2009 Junior Developer, Senior Developer / Software Architect “Freelance” 11/2009 – 01/2011 Senior Developer / Software Architect “KM-Ware” 01/2011 – 03/2013 Senior Developer / Software Architect “Octetis” 07/2013 – 05/2014 Senior Developer / Software Architect“Sigma Ukraine” 03/2013 – 06/2015 Senior Developer“PPCG Technologies Inc.” 06/2015 – 08/2018 Senior Developer / Project Manager PROJECT EXPERIENCE Software Architect / Senior Developer on project “Customer Relationship Management (CRM)”.Responsibilities: Create a project architecture and database architecture, implementation of algorithms for data deduplication. Implementation of Web Services; bug fixing and project reporting.Technologies: C#, .Net, ASP.Net, MSSQL, JavaScript, jQuery, Ajax, Visula Studio.Duration: 4 yearsSoftware Architect / Senior Developer on project “Enterprise Resource Planning (ERP)” SystemTechnologies: PHP, JavaScript, jQuery, Ajax, MySQL, MSSQL, Doctrine, NetBeans, GitDuration: 2 yearSoftware Architect / Senior Developer on project “health2people” search engine for medical informationTechnologies: PHP, Yii, JavaScript, jQuery, jQueryUI, Ajax, MySQL, MSSQL, NetBeans, Git, REST, Yandex API, Facebook API Software Architect / Senior Developer on project “tigerrr” management system for network businessTechnologies: Symfony2, Doctrine2, jQuery, jQueryUI, HTML5, JavaScript, Angularjs, Grunt, Brunch, Ant, Composer, Git, Facebook API, Google APISenior Developer on project “healththeater” search engine for medical videoTechnologies: PHP, Yii, JavaScript, jQuery, Angularjs, MySQLDuration: 2 yearsSoftware Architect / Senior Developer on projects «XIN» remote control system for IoT devices Technologies: PHP, C (develop firmware for MCU LPC824), Symfony4, Doctrine2, HTML5, JavaScript, ReactJs, Webpack, Composer, Git, OneNet, Mmosquito (MQTT).Duration: 3 Years
Администрирование систем · Защита ПО и безопасность
Стамбул, Турция
Стоимость услуг – не догма, а повод для обсуждения.
346
4 0
Ваш Надёжный IT-Специалист
Почему я?
✓ Гибкий Подход к Ценообразованию: Цена услуг обсуждается индивидуально, исходя из сложности и объема работы. Давайте найдем решение, удовлетворяющее обе стороны.
✓ Многосторонний Опыт: Более 10 лет в администрировании и поддержке IT-инфраструктур. От малых до крупных проектов, я гарантирую эффективность и безопасность вашей системы.
✓ Ключевые Навыки:
Администрирование Сетей: Управление локальными сетями, VPN, удаленный доступ, видеонаблюдение, системы безопасности. Серверное Управление: Опыт с Windows Server (2000, 2003, 2008), AD, DNS, DHCP, а также с Unix-подобными системами (Linux, FreeBSD). Безопасность и Защита Данных: Эксперт в обеспечении безопасности, включая защиту от DDOS-атак и шифрование данных (XMPP, PGP, TrueCrypt). Веб-Сервисы и Базы Данных: Настройка и обслуживание Apache, Nginx, MySQL, мониторинг через Nagios. Разработка и Программирование: Знания в PHP, C, Java, а также опыт работы с Adobe Photoshop.
✓ Аудит Безопасности Сайтов: Полный спектр услуг по аудиту безопасности, от общего осмотра до тестовых проникновений и анализа уязвимостей.
Как я работаю?
Обсуждение Проекта: Ваша задача и цели - моя первоочередная задача. Понимание всех деталей и требований к проекту позволяет мне предложить наилучшее решение. Планирование и Разработка: Каждый шаг работы планируется с учетом ваших сроков и бюджета. Выполнение и Поддержка: Выполняю задачи качественно и в срок. После завершения проекта всегда готов оказать поддержку и консультации.
Свяжитесь со мной, чтобы обсудить ваш проект и узнать, как я могу помочь вам достичь ваших IT-целей.
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Daghi Ivan
position: Java/Android senior developer
linkedin: https://www.linkedin.com/in/daghi-ivan-00164b15a/
state: not married
job state: busy
citizen: Moldova, Chisinau
ready to relocation: it is hard to choice
birth date: 06/12/1991
language: russian C2, english B2
Expirience:
Optimum-Web: 1 year, 6 mos
EpyDoc: 7 mos
Freelance and startups: 2+ years
Endava: 1 year, 7 mos
Est Computer: 3 mos
Das Solutions: 6 mos
R Systems: 1 year, 7 mos
Commercial expirience details:
Epy Doc projects: Kafka data streaming; SQL language for NoSQL database, Unit tests coverage, Automation of building projects using Rubby, Docker Api, Maven
OptimumWeb: Google Api automation, Automation tests, Parsers, Predictive NeuralNetworks(NN), Processing big data, security based on NN.
Endava: fin-tech/websites/admin pannels
Das Solutions: mobile telephony routing
R Systems: websites/admin pannels
Freelance: Blockchain wallet ( Government's project),
sites, targeting hack-attacks/invulnerability tests
Home projects: see in bottom of CV
Technology stack, keywords:
Java 7/8/9/11/17/18, OOP/SOLID, Design Patterns, Swing, JavaFX, JSP, Tomcat, GlassFish, Jetty, Spark RestApi microframework, RESTfull, Thymeleaf, Spring(MVC, JPA, Security, Web, Rest), Spring Boot, Hibernate, ws.rs, java.security, PostgreSQL, MySQL, SQL, Oracle, MongoDb(little expirienced), MariaDB, Docker, Docker-compose, VirtualBox, Kubernetes, ANTLR, Linux, Windows, Android, Selenium, Parsers, Junit, Blockchain, CryptoCurrency, NeuralNetworks(FANN/Tensorflow)(little expirienced), Graddle, Maven, Ant, Git, Svn, Algorithms and data structures, Oauth, Json, I/O(Sockets), P2P, UPnP, OpenVPN, NginX, JavaScript, JQuery, Angular, Bootstrap, SQS
Other:
Big Data.
Security:
Kali linux, Tails, Wireshark, sniffing, port scanners, spoofing, WiFi, MITM attacks, DDOS attacks (target: web services/wifi), trojans (linux/windows/android), proxy/vpn, passwords invulnerability/generators, bruteforce, social engineering, Android reverse engineering.
Dev. Environment:
Intellij Idea, Android Studio, Jira, Circle CI, Jenkins, Postman
Certificates:
-Java 8 Oracle Certified Associate
https://www.youracclaim.com/badges/06d13be5-7655-465a-8b12-46a8ffff134a/linked_in_profile (Oracle OCA)
-Java 8 features
https://skillvalue.com/en/certificate/TraFppCxN95MIEaEoNORqSdGVEaDeQnaM8A5cEDSbKDuz3FZdk8hp2cczKpJ (powered by Pentalog)
-Android
https://skillvalue.com/en/certificate/fA379BJqJRed43uvf3BDhgxIb1Q42hWtJnLyGdJOVqb7GPiLCnPvXQIBlnO6 (powered by Pentalog)
Other Languages:
Kotlin, Php, Rubby, C#, Bash, JavaScript, Python, Solidity
Front-end:
HTML5, CSS3, Bootstrap
School skills, when I was at school:
HTML, Flash Action Script, little C++ (not serious), windows lifehacks :)
Expirience in metodologies, by relevance of expirience:
Agile, Scrum, Kanban
Psy portrait:
-Architecture skills in deep problems
-Well communication skills
-Positive mod
-Ready to learning always
-Like a hacker“s mind
-Non standard thinking
-Easy connections with intelligent people
-I'm afraid of degradation
Personal pet-projects:
-Strong artifficial intelligence with tree structures and etc.
Note:
An artifficial intelligence which is close to Open AI, but more serious and complex, contains 13 large modules, one of them is truth detector. 2 of them is completely done, 2 - in stage of development
-My neural network library from zero
https://github.com/mixsmart/NNetworkCreator
-Etherium walett for Alten currency for Android
Note:
Used RAD metodology with one teammate, in this project I was team lead. Backend. Commecrcial
Android projects:
-Personal file cloud syncro (client and server, using Spark microframework)
-Remote foto viewer/slider (client and server)
-Shake tracker monitor(shows your time in moution with dates of quiets and moutions)
-GPS alert (notify you when you arrive to target geo point, and shows length to a point)
-And many same little projects
Date: 6 September, 2021.
Администрирование систем · Настройка ПО и серверов
Кропивницкий, Украина
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- Дипломированный специалист в области информационных технологий. - Выполняю сборку, установку, настройку, ремонт компьютерной техники (ПК, ноутбуки, сервера) а также установку и настройку программного обеспечения на дому и удалённо. - Занимаюсь прошивкой и настройкой смартфонов и планшетов, архивированием и восстановлением информации. - Опыт работы в данной сфере более 5 лет. - Вежливость и пунктуальность гарантирую. На все интересующие вопросы отвечу, спрашивайте! ПРОФЕССИОНАЛЬНЫЕ НАВЫКИ И ЗНАНИЯLinux(Centos, Ubuntu…), FreeBSD.Microsoft Windows Server 2003-2016.Microsoft Windows XP-10.AD, GPO, Terminal services, DFS, DNS, DHCP.Proxmox, Xenserver, HYPER-V.Системы резервирования данных (Bareos (Bacula), Acronis).Администрирование и программирование 1С-8.3, Wordpress.Microsoft SQL, MySQL.Сетевое оборудование D-link, Tp-link, Ubiquiti, Mikrotik.Система мониторинга Zabbix.Система контроля управления доступа СКУД "FortNet".Антивирусное программное обеспечение ESET Remote Administrator.
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I am a Sr. Full Stack Web and Mobile App Developer.I'm a Full-time Freelancer having more than 8 years of experience building Custom Web Applications and Mobile Applications. Also I have a small team of web Designers and Developers experienced with all the latest web and mobile technologies .
My experienced includes all aspects of building and supporting large-scale web based applications using advanced backend with PHP/MySQL and rich frontend using HTML5/CSS3/ Bootstrap/ Angular/ ReactJS/ NodeJS/ VueJS etc.
I have hands-on experience working with Wordpress, Joomla, Drupal, WooCommerce, Magento, Prestashop, Shopify, BigCommerce, Opencart, Zencart, PWA, CodeIgniter, Laravel, Zend, Yii2, Smarty, CakePHP, Symphony Frameworks.
Skills with Web Technologies:
-Custom PHP MVC architecture, Oops,
-Laravel, Codeigniter, Yii/2, CakePHP, Smarty, Symphony, Zend, Django
-MySQL, MongoDB, SQL-Server, MariaDB, Oracle, PostgreSQL
-Angular JS, Node JS, Vue JS, jQuery, JavaScript, JSON, XML, AJAX
-HTML5/Bootstrap, JavaScript/JQuery, Responsive Web Design
-3rd Party Integration, Advance Level Payment Gateways, API's, Web-Services
Over the past 6 years, I am also involved with mobile application development and I have a small but expert team of Mobile app Developers. I have developed data-driven Mobile Applications using Native App Development (iOs and Android) and Hybrid App Development with Ionic and React Native frameworks.
As a full time freelancer, I am actively looking for any remote/freelance opportunity and assure quality work with 100% work satisfaction.
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WORK EXPERIENCE
- Support specialist
- Sysadmin
TECHNICAL SKILLS
- Visual simulation tool: Cisco Packet Tracer, GNS3
- Virtualization software: VMware Workstation
- Operating systems: Windows 10, Linux (Ubuntu | CentOS 7)
- Ultimate toolbox for remote control|computing: TeamViewer, AnyDesk, Mobaxterm, PuTTY
- Monitoring software tool: Zabbix(basic knowledge)
COURSES&CERTIFICATES
- CCNAv7: Introduction to Networks
- MTCNA
- JNCIA – Junos