Peter Patsis

Peter Patsis

$25/hr
Front & Back end Developer. Full Stack, PHP, Java
Reply rate:
-
Availability:
Hourly ($/hour)
Location:
Puerto Varas, Los Lagos, Chile
Experience:
20 years
PETER PATSIS phone: - email:- WORK EXPERIENCE CEO, Developer /// Ariston Design /// 2005 -> Present Worked as a consultant, development and design company.  . LocalTherapySource. Portal for physical therapists (PT) to put paid listings for their services, customizable by the PT. A job board and blog for PTs.     ExpressAuto is a car service and repair shop     Implemented there web site using wordpress with customizations using AngularJS, TypeScript, SaSS, MySQL and HTML5. The back end application created a portal for the company to schedule bays, optimized repairman billable hours, handling of parts and supplies as well as a portal for customers. The back end was developed with PHP in a Zend Framework using Zend Studio for the IDE. In addition, the code was finally implemented for crossbrowser capability. OptiRate – OptiRate, a highly funded start-up was a web portal for high wealth customers wishing to invest in highly yielding CDs.       Previous programmers were unable to deliver. Coded over 250k Lines of code of medium complexity in 9 months meeting there delivery date. Front end used AngularJS, Less, PHP, Smarty template in the back-end using PHPStorm as the development IDE. Bug rate was less than 1%. Reduced complexity of code, and optimized the code by roughly 45-55% serving thousands of visitors per week. Managed and integrated with Cooperative banks software to find high yield CDs. The back end consisted of user accounts who tracked there investments. The app interfaced with third party identification systems. The front end used react.js for the view layer with FlexBox for more styling and Redux for state management. The microService tier used PHP for back end development using the Laravel Framework and the data/storage/persistence layer was in MySQL. Dlife.com – Dlife is a large sized nutritional information portal company.  Programmed a module for dlife.com that took recipes and broke them down into nutritional info for specialized diets.  Used Vue.js and bootstrap in the view/front end layer, PROFILE Highly motivated, results driven software developer with over 20 years experience working on all facets of software development. From transforming business and technical requirements, to coding and creating the product, testing and debugging, and finally release, support and maintenance. Experience working with large organizations, small, and startups mastering the art of managing technical decisions and trade-offs, always knowing how to avoid analysis paralysis as well as rushed solutions. Worked as a technical lead both within large teams as well as an individual contributor. With a strong research skill and focus, I know how to attack a problem and have the tenacity to solve even very hard problems using appropriate tools in pressure and challenging environments. EDUCATION Rensselaer Polytechnic Institute Troy, NY Ph.D attended but not completed Georgia Institute of Technology Atlanta, Georgia M.S. in Computer Science GPA: GPA: 3.5/4.0 State U. of New York – Potsdam Potsdam, NY B.S in Computer Science GPA: 3.5/4.0 PETER PATSIS phone: -    email:- microService or middle layer utilized a self-hosted node.js based middle tier using PHPStorm IDE and MongoDB. Client was satisfied that the code was finished rapidly with no bugs discovered, highly optimized and was easily integrated into their current system by architecting a clear and separable API set.  Developed a web site using Wordpress Woocommerce as the store front The view layer used react.js, less, html5 PHP was used in the back end using Symfony Framework, Zend Studio IDE for the company to sell its health and vitamins within wordpress. The program also took health information for clients with different health requirements and suggested products for them Other Projects: UpTo29, National Hellenic Society, TravGroup, Fox and Dole, ToursToChile and more Technologies Used in other projects: PHP, JAVA, MongoDB, MySQL, Zend Framework, Less, SaSS, SCSS, Ruby on Rails, Docker, NPM, KVM, libvert, AWS Lambda, bower, Jquery, DOM, Eclipse, CodeIgniter, PHPStorm CTO, VP of Engineering /// Digital Authentication Tech. /// 2005 -> 2009 Digital Authentication Technologies patented technology provides the World’s first environment-aware identity and access management (IAM) solutions using GPS          Vitazon – The company sells healthcare supplements, food and drink products     Skills & Abilities Slashed complexity, antiquated and non-clear API and redeveloped the core technology porting it from legacy forth to Java and C++ on Windows and Linux. Developed interface between in-house developed GPS device and the core API. The core technology was integrated into numerous horizontal business segments and companies. As a result core code was reusable and deployed in a multitude of integrations cleanly and scalable. Increased performance by 40% by optimizing queries and profiling. Successfully Gathered requirements and implemented them into RequisitePro Architected and designed the system using Agile and Scrum techniques Implemented GitHub, Subversion and Rational ClearCase for versioning, Rational Purify for debugging and profiling depending on clients codebase Used Trello and Jira for Agile project management. Incorporated bug free code into third party platforms using differing technologies depending on clients platform: Some technologies that were utilized were Jquery, AJAX, JSON, JUNIT, cppUNIT, subversion, svn, github. CEO /// Institute of Materials Science /// 2003 -> 2005 A premiere institute, that is offering high-level research conferences, short courses, and online courses to executives in product development, sales, product managers, and development engineers. The institute also produced proceedings from its conferences that were offered for sale.            Strong command over the integration & implementation of complex APIs and web services. Strong verbal and written communication skills Complex problem solving skills Time Management & Organization Ability to thrive in collaborative environment Strong attention to detail Creation of fast & scalable solutions Optimized and fast code Clean and well documented code Fast bug fixing & problem resolution Ability work in pressure & complex work environment. Team player Technical Skills Front End Skills ES5/6 JQuery Angular React Redux JSON Bootstrap HTML5, DOM Vue TypeScript MicroService/Middle/Back End Layer PHP C++ Java Python Node.js Ruby REST Sass Less PETER PATSIS phone: -       email:- Programmed the web site using PHP, Javascript, and the virtual courses in Ruby on Rails, Javascript and CSS. Created merchant accounts and developed storefront for sale of proceedings using osCommerce Due to economic recession moved courses from on-site courses to virtual online courses using a JAVA interface to allow PowerPoint presentations with annotation tools broadcast via the JAVA interface with voice and data. Created requirements specifications and architecture using Rational ClearCase, and Requisite Pro Created test procedures for verification of designs, and PHP using selfcreated test platform As a result the Institute was able to increase by 300% its sales from red to profitability. Lead Developer /// Hewlitt-Packard (HP) Worked on NetworkView a GUI application that allowed topological administration of a SAN network, including switches, storage controllers and servers written in JAVA, and Java Swing. Spent much time as a lead develop on Secure Path a program for non-stop, multi-pathing software. Lead liaison to Prisa Networks bought by EMC for Network View. Coded Secure Path in C/C++. Lead Developer /// Compaq Developed a multi-threaded, parallel processing program (~150K lines,C++) to assist in verification of the Alpha AXP Microprocessor called stimp.. Program allowed user to tune all parameters of the architecture: Branch Predictors, cache construction, hit and miss rate, register selection, register renaming, shared memory, instruction types etc. Lead Developer /// Smithsonian Institute Developed software to deploy the Chandra xray high-speed telescope into orbit. Chandra was developed between NASA, Smithsonian, MIT, and TRW. Programmed the TCP/IP transfer protocol between the ground station capture of data into a sybase database and created/Assisted the data analysis algorithms for astronomers to analyse the data. Was brought onto each subsystem of the telescope (Hardware CCD’s to transmission (network protocols) of data to ground station, to storage into database system, to creation of astronomical applications to manipulate the data Other Accomplishments Technologies Used: Author – “UNIX awk and sed Programmer's Interactive Workbook”, ISBN-, Publisher: Prentice Hall Patent Pending – "A template language for the verification of MP and SMP Microprocessors" Digital Equipment Corporation Certificate – “Five Disciplines of Innovation” SRI International Graduated Magna Cum Laude from State University of New York at Potsdam Scala Data/Persistent Layer MySQL MongoDB Postgres Oracle Development IDEs PHPStorm Microsoft Visual Studio IntelliJ IDEA Zend Studio Komodo IDE Development Framworks Laravel Zend Framework CodeIgniter Symfony Yii Debugging Tools Chrome Dev Tools React Dev Tools Rational Purify Node.js Inspector Postman Visual Studio Gdb Release Management GitHub, Git Jenkins Jira Other Tools EC2, Amazon Web Services SAN/NAS/Fibre CloudFront XenServer, KVM, libvert
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