Adam Culp

Adam Culp (@AdamCulp), author of "Refactoring 101" and consultant at Rogue Wave Software, is passionate about developing with PHP and contributes to many open source projects. He organizes the SunshinePHP Developer Conference and the South Florida PHP Users Group (SoFloPHP), where he enjoys helping others write good code, implement standards, refactor efficiently, and incorporate unit and functional testing into their projects. He is a Zend Certified PHP 5.3 Engineer, is a voting member of the PHP-Fig, and holds a seat on the Zend Framework Certification Advisory Board. You can also find him on his Run Geek Radio podcast and GeekyBoy technical blog. When he is not coding or contributing to various developer communities, he can be found hiking around the United States National Parks, teaching judo, or long (ultra) distance running.

Adam Englander

Adam Englander is a seasoned developer with over twenty-five years of experience building scalable, manageable, and reliable systems. For the past ten years, he has been doing that with PHP. Adam is a vocal advocate for utilizing behavioral driven development as the driver for building great applications. His dedication to the PHP community is well known as the founder of Vegas PHP. In the past few years, Adam has been building IoT apps and has been researching ways to make this accessible in PHP.

Ahmed Dirie

Working as a developer for over 10 years, Ahmed specializes in cloud infrastructure and web application development. He comes from a networking background and has worked on achieving high availability through software driven networks as well as moving routing into the cloud. He's also published a paper both in IEEE and IJAACS on localization algorithms for wireless sensor networks. In 2008, Ahmed co-founded a web startup that enabled businesses in the mail industry to manage their customers and provide notifications services.

Currently, Ahmed works as a Cloud Developer for Rogue Wave Software where he manages the company's cloud architecture.

Alan Seiden

As the most experienced PHP expert on the IBM i platform, Alan Seiden helps IBM i teams develop smart, high-performance web and mobile applications using PHP, Zend Server, RPG, and DB2. Founder of Seiden Group, an independent consultancy, Alan also works closely with some of the best minds at both Zend and IBM on behalf of his clients.
An award-winning speaker, Alan has been called "the performance guru of PHP on IBM i." Alan is a passionate advocate for open source. Among his many contributions to the PHP on IBM i community, Alan co-developed the PHP Toolkit with IBM, became one of the first Zend Framework certified engineers, was named a “must-read” writer of a “Top 10 IBM i Blog," consulted on IBM's manual PHP: Zend Core for i5/OS, and created the Club Seiden community to nurture young talent and IBM i open source.

Andrew Carr

Andrew is a enterprise solutions architect at Rogue Wave Software. He has been working in the IT industry since 1996, ranging from hardware and networking to application development. Andrew’s #1 specialty is Apache Tomcat, and he is recognized in the Tomcat community as a subject matter expert, assisting the Tomcat open source project in many ways.

Ann Gaffigan

Ann Gaffigan is the CTO and partner at National Land Realty, a full-service real estate brokerage company specializing in farm, ranch, plantation, timber, and recreational land across the country. She was formerly the CTO of Land Pros Realty, which merged with National Land Realty in January 2016.
Ann spent the first decade of her career growing her web and systems development business, Gazelle Incorporated, after graduating from the University of Nebraska with her bachelor’s in computer science in 2004. Gazelle Inc. served dozens of clients all over the United States, ranging from small businesses that needed informational websites to larger non-profits and commercial businesses needing integrated membership and operations systems.

Bastian Hofmann

Bastian Hofmann works as a software engineer at ResearchGate, the social network for researchers and scientists. There he is caring about performance, monitoring, web security, and developer productivity. When he is not developing stuff or looking at graphs, he frequently speaks at international conferences on software architecture, scaling web applications, and open standards and protocols.

Bill Crowell

Bill has over 22 years of experience working in various software roles related to full stack development including user interface, middleware, databases, security, DevOps, training, and mentorship.  His primary focus is on applying open source in the enterprise.

Bradley Holt

Bradley Holt is a developer advocate and senior software engineer with IBM Watson Data Platform. He is the author of several publications including Scaling CouchDB and Writing and Querying MapReduce Views in CouchDB (both published by O'Reilly Media). He has spoken at numerous conferences including Abstractions , ApacheCon, the O'Reilly Software Architecture Conference, Fluent, ConFoo, CodeMash, Node.js Interactive, That Conference, NoSQL Now!, php[tek], ZendCon, OSCON, the jQuery Conference, and SXSW Interactive. Bradley writes and speaks about topics such as Apache CouchDB, PouchDB, Offline First, PHP, Node.js, and Domain-Driven Design.

Brandon Savage

In 2003, Brandon discovered that PHP could automate things that would take a long time to do by hand. Brandon was hooked, and spent every waking hour learning PHP and how to use it for his projects. Brandon began his career working for small shops doing WordPress and Drupal with some custom applications, then moved on to Mozilla, where he worked on a highly-available big-data project called Socorro.
Brandon's passions are object-oriented design and well-written code, along with a healthy dose of a "just ship" mentality for solving business problems. Brandon lives in Maryland and is a private pilot with more than 400 hours of total time. Brandon speaks at PHP conferences around the world on a variety of subjects focused on good code, object-oriented design, and being your own boss.

Brent Shaffer

Brent is a developer programs engineer at Google who is involved primarily in the open source world of PHP in the cloud. His most notable open source contribution is the OAuth2 server for PHP, and his favorite open source project is the Symfony framework. Outside of work, he loves mountaineering and playing folk music in a band - More Hazards More Heroes.

Cal Evans

When he was only 14-years-old, Cal encountered the computer that changed his life: a TRS-80 Model 1. He graduated from TRS-80s to Commodores and eventually to IBM PCs. For the past 13 years Cal has worked with PHP and MySQL on Linux, OSX, and Windows. He has built a variety of projects ranging in size from simple web pages to multi-million dollar web applications.

When not banging his head on his monitor, attempting a blood sacrifice to get a particular piece of code working, he enjoys building and managing development teams using his widely imitated but never patented management style of "management by wandering around."

These days, when not working with PHP, Cal can be found working on a variety of projects like Nomad PHP. He gives motivational talks to developers around the world. If you meet him at ZendCon, don't be afraid to buy him a shot of Bourbon.

Christian Varela

Husband, father of three girls. Christian Varela is a PHP programmer with 13 years of experience. He started working with PHP to create web applications. He's originally from Mexico and he has lived in Miami for 8 years. He created his own company, Conqueror Soft. Currently he works for both his company and CVS Health. He is the lead PHP programmer at CVS. He likes to play piano and guitar.

Christian Wenz

Christian Wenz is a consultant, author, and trainer on web technologies, web performance, and web security. With his company Arrabiata Solutions GmbH, with offices in Munich and London, he makes web applications better performing, more visible, and more secure. Christian has written or co–written over 100 books for various publishers. He is the main author of the Zend PHP 5.5 and PHP 7 certifications, contributes to several open source projects, and is a fixture at IT conferences worldwide since 2003. This is his 12th ZendCon.

Christopher Pitt

Christopher Pitt is a developer and writer, working at https://io.co.za. Christopher usually works on application architecture, though sometimes he builds compilers or robots.

Clark Everetts

Clark is a relative newcomer to PHP, having only 12 years experience using it on a daily basis, and providing PHP training for a mere nine years. He has overcome this handicap, however, as a senior professional services consultant at Rogue Wave Software, where he helps companies manage their PHP-based web applications by conducting software architecture and performance audits, guiding PHP and Zend Framework migrations, and showing developers how to build, test, and deploy applications with Zend Server, Zend Studio, and open source tools. He likes to find bugs, fix 'em, and, by teaching software development best practices, help people prevent them in the first place.

Colin O'Dell

Lead web developer at Unleashed Technologies, a web and hosting firm based in Maryland, Colin began programming at age 8, co-founded a local web shop at 15, and has over 10 years of professional experience with PHP. In addition to being an active member of the PHP League and maintainer of the league/commonmark project, Colin is also author of the PHP 7 Migration Guide ebook.

Damien Seguy

Damien Seguy is CTO at Exakat Ltd., a company specialized in PHP code quality solutions for the industry. He leads the development of the exakat static analysis engine, that automatically review code for version compatibility, security, and clear code. Over the last 17 years Damien has contributed to PHP, as documentation author, elephpant breeder, conference UFO on all continents. He also enjoys gremlin, 狮子头 and camembert.

Dave McLoughlin

Dave has worked various sales, technical, and management positions in the microcomputer software industry for over 25 years. He first joined OpenLogic (now Rogue Wave Software) in 2006 in a technical sales positions and has since helped the company in developing its open source content strategy and technical support department. Currently, Dave is the director of open source software auditing services at Rogue Wave Software.

Dave Stokes

Dave Stokes is a MySQL community manager for Oracle and previously was the MySQL certification manager for MySQL AB and Sun. He started with PHP when it was Personal Home Page and quickly abandoned PERL thereafter. He lives in Texas and does not get enough time to ride his motorcycle (a Honda Goldwing).

Davey Shafik

Davey Shafik is a full-time developer with over 15 years of experience in PHP and related technologies. He is a developer evangelist at Akamai Technologies and has written several books, numerous articles, and spoken at conferences the world over. He is best known for his book, the Zend PHP Certification Study Guide, as the creator of PHP Archive (PHAR) for PHP 5.3, and Release Manager for PHP 7.1.
Davey is passionate about improving the tech community. He co-organizes the Prompt initiative (mhprompt.org), dedicated to lifting the stigma surrounding mental health discussions, and has worked with PHPWomen since its inception.

David Hayes

David Hayes is a developer from Fort Collins, CO who's been working with PHP for almost a decade, and does a lot of intensive backend work, a fair bit of Javascript, and dabbles with CSS sometimes. While he's big into WordPress — he co-owns and runs the popular tutorial site WPShout — he's got experience with everything from old school PHP to the latest and greatest of Symfony and Laravel.

David Strauss

David is a co-founder and CTO at Pantheon Systems, where he designed a platform built on public-key infrastructure that supports over 100,000 Drupal and WordPress applications deployed across 1,000,000 containers. He is a systemd maintainer; founding member of the Fedora Server Working Group (forming the basis for CentOS 7); and a member of the Security, Infrastructure, and Advisory Boards at the Drupal Association.

David Straus is co-presenting with Michael Hess: Watch the Hacker Hack

Enrico Zimuel

A developer since 1996, Enrico Zimuel works as a Zend senior software engineer at Rogue Wave Software. He is a core developer of Zend Framework and Apigility. He has been a Researcher Programmer at the Informatics Institute of the University of Amsterdam. He is a TEDx speaker and regular speaker of international PHP conferences. He is the co-founder of the PHP User Group of Torino (Italy).

Federico Lara

Managing Director of IT and chief technologist at FedEx Cross Border — co-created Bongo International in 2007, which was acquired by FedEx in 2014. He continues to be responsible for the overall technology path and the overall cross border product vision. Lara's previous experience in web production and technology creation involved working with teams and projects at IBM Websphere, Coca-Cola, and MIT Media Lab, amongst others. Lara is an avid supporter of the developer and startup community and is an active member in the following organizations: NY Tech Alliance, Startup Weekend, and BBVA Open Talent. Lara holds a Music Business and Technology degree from Berklee College of Music in Boston, and he studied Finance and International Business at Harvard Extension School. He and his team are based in NYC and Lima, Peru.

Georgiana Gligor

Having crafted professional software on the LAMP stack since 2003, Georgiana is living proof that geek girls are an asset to any team. She loves developing complex, large-scale applications with a strong emphasis on performance, as well as mentoring teammates in achieving craftsmanship. Georgiana has experience in every aspect of the lifecycle of software development and is hungry for more.

Jan Burkl

Since 2006, Jan has worked as a senior solution consultant for Rogue Wave Software in Stuttgart, Germany. The university degree trained computer scientist consults business customers in the field of PHP software projects.

Jan has been working with PHP since 2001. During his computer science studies, he developed several PHP projects in the field of research of efficient network algorithms. In 2005, he started to work as a software developer, where he planned and implemented individual software solutions for business customers.

Jason McCreary

Jason McCreary, aka "JMac," is a software engineer specializing in PHP and iOS application development. He's the creator of PocketBracket, Laravel Shift, and PHP Shift. Code mentor at Code Louisville and organizer of the Louisville Software Engineering meetup], JMac has a passion for programming and the great outdoors.

John Valance

John Valance has been a professional software developer since 1983 and a web developer since 1998. As a consultant and developer, John specializes in database and web application development on the IBM i platform. He has also been a trainer for Zend Technologies, teaching PHP Foundations for IBM i Programmers, and is a Zend Certified Engineer. He has extensive programming experience in RPG, Java, PHP, and JavaScript, and he enjoys explaining new programming concepts to RPG programmers. John is a frequent presenter at user groups, and has created presentations and labs on many web development topics. John is the president and founder of Division 1 Systems, a software and services firm based in Burlington, Vermont.

Joshua Copeland

Joshua Copeland is a full stack developer and the CTO of Research.com. He found his way into the PHP arena where he has been actively developing with it for nearly a decade. Joshua is also knowledgeable with setting up continuous delivery pipelines in Jenkins, managing AWS cloud infrastructure with Terraform, utilizing Docker, and getting his hands on anything new and cutting edge. Joshua is the leader of the PHP Vegas Meetup group and speaks regularly at the other user groups and events. Outside of the technical arena, Joshua prioritizes spending time with his wife and two children and enjoys hiking, skateboarding, and creating software!

Justin Reock

Justin has 20 years of experience working in various software roles, including development, databases, integration work, quality, training, and technical leadership.  An outspoken free software evangelist and enthusiast, Justin has delivered numerous talks and sessions across a range of open technologies including ActiveMQ, Camel, CentOS, Java, and Postgres.  He’s currently the lead architect and director of Rogue Wave Open Source Support helping businesses support and adopt OSS, mitigate risks, and expand the utilization of OSS within their projects.

Kevin Adler

Kevin Adler works for IBM as part of the Emerging Solutions team. He has experience in many programming languages including C, C++, Java, CL, RPGLE, COBOL, Perl, Python, Ruby, JavaScript, and more. In his time at IBM he has worked as the IBM i test lead for WebSphere MQ and after that working on various parts of DB2 for i, including CLI; SQ runtime; IBM i Access ODBC driver; and writing many SQL services. In 2015, he joined the Emerging Solutions team to bring his love of Open Source Software to the IBM i platform.

Mariusz Gil

Mariusz Gil is software architect working on high complexity and high value scalable web applications. Trainer, consultant, and conference speaker. Mariusz has been working for several companies on PHP projects for millions of active users, from biggest social network and instant-messaging software in Poland to multi-billion PV content personalization and discovery platform. Mariusz is also member of 4Developers and PHPcon Programme Commitees, and one of core members behind PHPers, open meetups for PHP developers in many cities in Poland. Big-data enthustiast and data-sciencist wannabe. After hours, biker and rock guitarist.

Mark Niebergall

Mark Niebergall is a passionate, security-minded PHP software engineer with over a decade of hands-on experience with PHP projects. He is the Utah PHP User Group President and often speaks at user groups and conferences. Mark has a Masters degree in MIS, is CSSLP and SSCP cybersecurity certified, and volunteers for (ISC)2 exam development. Mark enjoys flying drones, casual gaming, and teaching his kids how to push buttons and use technology.

Massimiliano Cavicchioli

Massimiliano is a consultant and software architect at Rogue Wave Software. Everything he does revolves around best practices being applied to the entire lifecycle of PHP-based applications. With more than 10 years in and around PHP, he strives to stay up to date with any important development in the PHP ecosystem.

Massimiliano's everyday work can be summarised by the following quote: "We always hope for the easy fix: the one simple change that will erase a problem in a stroke. But few things in life work this way. Instead, success requires making a hundred small steps go right - one after the other, no slipups, no goofs, everyone pitching in."

Matthew Weier O'Phinney

Matthew has been using and abusing web technologies since the late nineties, and has actively contributed to open source projects since the early aughts, primarily in PHP. He’s spoken extensively at PHP conferences since 2005, including all but one ZendCon, multiple times at each of the Dutch PHP Conference and PHP Benelux, PHP Brasil in 2014, and many other venues. His topics range from deep dives into Zend Framework-related functionality to high-level PHP architectural concerns.

Matthew is a principal engineer at Rogue Wave Software and project lead for the Zend Framework, Apigility, and Expressive projects. He’s responsible for architecture, planning, and community engagement for each project, which engage thousands of developers worldwide, and are shipped in projects from personal websites to multinational media conglomerates, and everything in between. When not in front of a computer, you'll find him cavorting with his basset hound and family on the plains of South Dakota.

Maurice Kherlakian

Maurice Kherlakian is the senior director for professional services at Rogue Wave Software. He's a technical team management expert with an extensive background in development, systems administration, and DevOps.

Mike Pavlak

Solution consultant with Rogue Wave Software and IBM i community advocate for PHP. Mike Pavlak has been working with IBM midrange solutions since 1992 and IBM mainframes before that. After years of developing applications using RPG, CL, and PHP, he managed IT development and IT for power protection manufacturer Tripp Lite. Mike joined Zend Technologies (now Rogue Wave Software) as a solutions consultant working with the IBM sales team in 2008 and enjoys helping IBM i customers explore PHP as a state of the art solution for application modernization. In addition to several roles as a volunteer with COMMON, the premier IBM midrange user group, Mike also teaches PHP classes part time at Moraine Valley Community College in suburban Chicago.

Philippe Gamache

Philippe Gamache contributes to PHP since 1999: Promotion, participation at local user groups, organizing conferences, speaking at conferences, and writing technical articles. He works especially with Symfony, specializing in security, code quality, and performance.
Coauthor of a PHP security book called “Sécurité PHP 5 et MySQL 5.” He was a member of the executive board of Montreal’s OWASP (Open Web Application Security Project) group for several years.
Now a big part of his work is to bring the PHP community to adopt new tools like kuzzle to add a real-time engine, subscription and notification mechanisms, geolocation/geofencing, advanced search features, and more protocols to their applications.

Rod Flohr

An RPG programmer by trade, Rod came to Zend (now Rogue Wave Software) in late 2006 with more than 20 years of experience developing and supporting applications written for the System/38 and AS/400 family of IBM midrange computers. Rod remembers when he made the transition away from the familiar environment of RPG, CL, job queues, and subsystems into the strange new world of PASE, Apache, IFS, and PHP. The transition wasn't easy, not so much because these things were particularly difficult to use, but much more because they seemed so very different from the old ways. Rod has never forgotten this sensation of being lost in a new world. As a Rogue Wave support engineer working with IBM i customers today, Rod always works to help his newer customers to understand this new environment and become comfortable working in it.

Samantha Quiñones

Samantha Quiñones is a polyglot hacker and wrangler of engineers at Etsy. Over the course of her career, she has built software and led teams for some of the largest names in technology. Samantha is an internationally renowned speaker, a member of the PHP-FIG Core Committee, and a co-organizer of the NY PHP User Group. She has been recognized by the Huffington Post as one of the top Latin Americans in Media and is a 2015 recipient of the DCFT Powerful Female Programmers Award. 

Sammy Kaye Powers

Sammy Kaye Powers has been making things on the web for fifteen years. Sammy spends the bulk of his time in coffee shops cranking out loads of Facebook apps for ad agencies. He dabbles in PHP internals and is a top contributor of the official Facebook PHP SDK. He loves sharing knowledge about Facebook development and PHP at SammyK.me. He co-organizes the Chicago PHP user group and hosts the PHP Roundtable podcast. He travels all over the States competing in a dance called west coast swing. He's also a volunteer magician performing bedside magic at children's hospitals.

Slavey Karadzhov

Slavey Karadzhov has been a senior consultant at Rogue Wave Software since 2008. He is PHP 5/5.3 Zend Framework Certified Engineer. Proud owner of two master degrees - one in Computer Science from Sofia University, Bulgaria and one in Software Technologies from Stuttgart University of Applied Science, Germany. Backed up with good theoretical knowledge he has solid experience. He is a strong open source supporter and awarded software innovator. During his free time he likes to travel in exotic places and enjoys time with his family.

Stephanie Rabbani

Stephanie Rabbani is a consultant with the Seiden Group. She has been doing web development on the IBM i for 14 years, the last 9 of those primarily using PHP.
Stephanie is ZF2-certified and has expertise in various web development technologies as well as in-depth experience with DB2, SQL, and the IBM i environment. She also consults on the ongoing development of the PHP Toolkit for IBM i.

Taylor Lovett

Taylor Lovett is the director of engineering at 10up, one of the biggest WordPress centric agencies in the world. Having been involved with WordPress since 2007, he has contributed to WordPress core, authored popular plugins (downloaded hundreds of thousands of times), and spoken at many conferences across multiple continents. He is a lover of all things open source. Other than developing web applications, Taylor is a lover of music. He enjoys listening to blues and jazz music as well as playing acoustic fingerstyle guitar.

Tessa Mero

Tessa Mero is a developer evangelist for Cisco. She spends her extra time contributing on a leadership team for the Joomla! Project and has been involved with Joomla for the past 5 years. She runs the Seattle PHP Meetup and is the organizer of the Pacific Northwest PHP conference. On her free time, she likes to play video games, snowboard, and eat Korean food.

Wim Godden

Wim Godden has been working with open source technologies since 1997 and has been involved in open source projects such as PHPCompatibility, Nginx SLIC, and OpenX.

Next to web development, he's worked with a wide range of technologies (from database clusters to Internet backbone design) and focuses a lot of his time on high-scalability projects and on coaching/training web engineers.

Zeev Suraski

One of the principal authors of the PHP programming language, Zeev’s involvement with PHP dates to 1997 when he co-created the foundation for PHP 3 - the first version of PHP that resembles modern PHP. Later he spearheaded the PHP 4 project - which made PHP the most popular development language in the world for web apps, contributed to PHP 5, and is to blame for the sixth version of PHP being named PHP 7. Zeev co-founded Zend Technologies (acquired by Rogue Wave Software) in 1999, and holds a bachelor's degree in computer science from the Technion, Israel Institute of Technology. Currently, Zeev is CTO and VP of engineering at Rogue Wave Software, leading the Zend research and development teams.