Alvaro Sanchez-Mariscal profile image

Alvaro Sanchez-Mariscal



Álvaro is a member of the Grails team at OCI and a Grails committer. He is a passionate software architect and agile enthusiast with over 18 years of experience. He started his career in 2001 coding in Perl and Java, but then quickly focused on Java EE, working for companies like IBM BCS, BEA Systems or Sun Microsystems. He created his own company, Salenda, in 2005, the very first Grails company in Spain. Since 2013 he has worked in different industries like gambling games and fintech. He now works for OCI, the company behind Grails.

Álvaro is a speaker at conferences like GeeCON, JavaLand, JavaZone, Codemotion, Greach and GR8Conf. He has also written several Grails plugins, including Spring Security REST, which provides stateless, RESTful, token based authentication for Grails using OAuth 2 and JWT.


Brian Contos profile image

Brian Contos



Brian Contos is the CISO & VP Technology Innovation at Verodin.

Brian has over two decades of experience in the security industry. He is a seasoned executive, board advisor, security company entrepreneur and author. After getting his start in security with the Defense Information Systems Agency (DISA) and later Bell Labs, Brian began the process of building security startups and taking multiple companies through successful IPOs and acquisitions including: Riptech, ArcSight, Imperva, McAfee and Solera Networks.

Brian has worked in over 50 countries across six continents. He is a strategic board advisor for multiple companies including Cylance and Appdome. He has authored several security books, his latest with the former Deputy Director of the NSA, spoken at leading security events globally and is a Distinguished Fellow with the Ponemon Institute. Brian frequently appears in the news and has been featured in CNBC, C-SPAN, Fox, NPR, Forbes, Wall Street Journal, The London Times and many others. He most recently appeared in a cyberwar documentary alongside General Michael Hayden (former Director NSA and CIA).


Christian Oestreich profile image

Christian Oestreich



I am a Technical Architect and Software Developer working and living in Minneapolis. I have been developing software professionally since 1998. I have worked and/or contracted at many fortune 500 companies including UnitedHealth Group, Best Buy, ING, Ingersol Rand, Donaldson, Jostens, Wells Fargo. My history is diversified between .Net and Java technologies. I currently spearhead the Grails Plugin Consortium (https://github.com/Grails-Plugin-Consortium) which has primary coding responsibilities for CXF, CXF-Client and Filter Pane plugins. I have also contributed to several other grails plugins such as Redis, Resque, Hystrix and others.


Daniel Maas profile image

Daniel Maas



Engineer, explorer, thinker, fixer of things that break, breaker of things that weren't broken


Eric Helgeson profile image

Eric Helgeson


Agile Orbit

Eric is a Senior Developer at Agile Orbit where he works on Groovy, Grails 3, and infrastructure automation for clients. He is also the author of the first Grails 3 book Practical Grails 3 https://www.grails3book.com. Eric has worked for many years updating, building and deploying Grails applications.


Jeff Scott Brown profile image

Jeff Scott Brown


Object Computing Inc.

Jeff Scott Brown is the co-founder of the Grails and Micronaut frameworks, and has been doing JVM application development for as long as the JVM has existed. Jeff leads the Grails and Micronaut practices at OCI (http://objectcomputing.com) and is a key contributor to the frameworks’ core development.


Kyle Boon profile image

Kyle Boon



Kyle Boon is a Lead Engineer in St. Paul, MN. He has been developing web applications professionally for the last 13 years. Kyle is passionate about building scalable, maintainable, robust software systems and having fun while doing so. When not programming he obsesses over Ohio State football, and tries to build objects from wood.


Nirav Assar profile image

Nirav Assar



Nirav Assar is a Grails Developer with OCI, and is based out of the Dallas Fort Worth area. He has consulted on several projects in various industries, such as financial, real estate, government, and retail. His expertise is based in several Java technologies like Grails, Groovy, Spring, and Hibernate. Agile philosophy and test driven developments is at the heart of his profession, and he enjoys sharing techniques and tools that help software people excel at their jobs. Nirav interested in providing high value to business groups, talking with associates about their experiences, and generally getting along with everyone. View his blog at assarconsulting.blogspot.com.


Olga Maciaszek-Sharma profile image

Olga Maciaszek-Sharma



Olga Maciaszek-Sharma is a Java and Groovy Developer at Devskiller. She has gained her experience while working with microservices where cutting-edge solutions were used as well as with complex legacy systems, implementing both new business features and solutions aimed at improving the process of continuous deployment and setup of applications. Olga is also a contributor of the OSS projects: Spring Cloud Contract (former: Accurest), JFairy, Jenkins Pipeline Plugin, Jenkins Stash Pull Request Builder Plugin, and others. Before switching to development, she worked for more than 3 years as Quality Assurance Engineer, specialized in test automation.


Paul King profile image

Paul King



Paul King has been contributing to open source projects for nearly 30 years and is an active committer on numerous projects including Groovy, GPars and Gradle. Paul speaks at international conferences, publishes in software magazines and journals, and is a co-author of Manning’s best-seller: Groovy in Action, 2nd Edition.


Rob Zienert profile image

Rob Zienert



I'm a Sr Software Engineer at Netflix with a passion for software automation. I work full time on the Spinnaker product.


Roberto Perez Alcolea profile image

Roberto Perez Alcolea



Roberto is an experienced software engineer with focused in microservices, streaming, cloud, developer productivity and continuous delivery. He has several years of experience using Groovy currently enjoying technologies such as Spring Boot, Ratpack, Reactor, Akka, Kafka Streams and Netflix Hollow. He's also a contributor to Netflix Hollow (https://github.com/netflix/hollow).

Currently works at Target as part of the Streaming Platform team, building tools that enable teams to take various data sources like Kafka topics and create distributable caches leveraging Netflix Hollow, exposing them through distributable, highly performant, and highly available web APIs


Tucker J Pelletier profile image

Tucker J Pelletier


Transitional Data Services (TDS)

Tucker is a senior software engineer who has worked on Grails projects for the past 7 years, and is the organizer for the Boston, Groovy/Grails/Spring Meetup(@B2GSMeetup ? always looking for speakers). Tucker also contributes to open source by creating the Grails plugins Command(convention for command objects), and Enforcer(dsl for permission/business rules), and the Groovy libraries GroovyConfigWriter(used in the Grails external config plugin, yml to groovy) and HtmlEnforcer.


Zachary Klein profile image

Zachary Klein



Zachary Klein is a member of the OCI Grails team, has been practicing Java web development for more than 6 years, and has been practicing React/Angular development for the past 2 years. Beginning as an independent consultant in 2010, he has worked in a wide variety of domains, including real estate, analytics, and e-commerce. Outside of the JVM and web dev space, Zachary has dabbled in iOS development, audio engineering, and *nix administration. He is the author of the Vue and React profiles for Grails, as well as a contributor to Grails Guides and other projects around the framework. Zachary's home base is in St Louis, MO., along with his wife, Beth, and two programming protégés (aka sons), John and Timothy.