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Project Main MentorsProject

Attila Vamos

Attila joined the HPCC Systems team having worked at Nokia previously doing Symbian OS Kernel development work. Attila is becoming our expert in resolving issues affecting the HPCC Systems DFU server which controls the transfer of files and data between machines in an HPCC Systems environment. He has improved the stability and performance of file spray especially for large XML and CSV files. As a result, he is well placed to mentor the DFU spray from zip/gzip files project. He is also improving our regression suite which enables us to self-test our code before release and also works on our automated testing system.

DFU spray from zip/gzip files

Incorporating self test code into a bundle

Provide test code for bundles with no self test

Gavin Halliday

Gavin has been with LexisNexis Risk Solutions for more than 25 years. He is one of the original architects of the HPCC System platform, and has worked on many parts of the system.  He is currently the lead developer of the HPCC Systems code generator, which is the compiler for our proprietary programming language ECL. Gavin is the lead mentor for projects which involve making improvements in the code generator.

Implement a Reverse activity

Xiaoming Wang

Xiaoming Wang (Ming) is a Software Engineer and has been with LexisNexis Risk Solutions since 2013. Ming is responsible for various HPCC Systems projects and builds as well as installation and configuration of HPCC Systems platform. He also works on several cloud solutions for HPCC Systems development, such as Instant Cloud for AWS, Cloud Formation Solution, Juju Charm, Docker/Kubernetes, and many other solutions.

Cluster deployment with Juju Charm


Gordon Smith 

Gordon is the manager of the HPCC Systems supercomputer clients. He is a member of the HPCC Systems Core Platform team and has been a LexisNexis Risk Solutions employee for more than 18 years.  He is the principle developer for ECL related development tools, including the ECL IDE, ECL Plugin for Eclipse, ECL Watch, ECL Execution Graph Viewer and, more recently, the HPCC Visualization Framework.  For the intern program, he mentors any projects relating to the HPCC Visualization Framework and/or a web based debugging front end for ECL.

Implement ECL Pretty Print

VS Code extension for DESDL

Kevin Wang

Kevin is a Consultant Engineer for LexisNexis Risk Solutions, where he has worked for more than 10 years. Kevin’s current contributions to the HPCC Systems project include working on the ESP component including web services and other projects. One of his roles is to help people use HPCC Systems easily and efficiently. Cluster deployment and ESP Configuration are examples of two areas on which he has worked to improve usability. Kevin is a backup mentor for the Cluster deployment with Juju Charm project.

Cluster deployment with Juju Charm

Richard Chapman 

Richard has been with LexisNexis Risk Solutions for more than 25 years. He is the VP of Research and Development and the leader of the HPCC Systems development team. Richard wrote the code to create the HPCC Systems query cluster, ROXIE which stands for Richards Online XML Inquiry Engine. He was one of the original designers of ECL which was created as a data-centric programming language for easily expressing problems involving large quantities of data.

He is the backup mentor for the projects which involve interfacing embedded languages or external detesters in ECL. This is very fitting since he wrote the plugins we currently provide for R, Java, MySql, Javascript and Cassandra. He is also a backup mentor for the IoT protocol for ROXIE project.

Interfacing MongoDB in to ECL

Tim Humphrey

Tim has been with LexisNexis Risk Solutions for more than 30 years. His undergraduate degree is in mathematics and both his master’s and PhD work are in computer science. Until 2014, he worked as a research scientist but is now contributing to the Machine Learning Library and getting the HPCC System platform to perform well in a Cloud environment, such as Amazon’s AWS.

Last year, Tim mentored a student working on a machine learning project. Find out about Sarthak Jain's project to add new statistics to the Linear and Logistic Regression Module. This year, Tim will help us to evaluate proposals again and he will also be a back up mentor for the machine learning projects we are offering.

Implement an approximate n-tile algorithm (ML)

Dan Camper

Dan has been with LexisNexis Risk Solutions since 2014 and is a Senior Architect in the Solutions Lab Group. He has worked for Apple as well as Dun & Bradstreet, and he ran his own custom programming shop for a decade. He's been writing software professionally for more than 35 years and has worked on a myriad of systems, using many different programming languages.

He extended the ECL Std.Date library module to include time support and also authored the Kafka plugin, which makes him perfectly placed to offer support to anyone wanting to add an interface to ECL for another language or external data store.

Additional embedded languages in ECL

Additional External Data Stores

Anthony Fishbeck

Anthony has been with LexisNexis Risk Solutions for more than 15 years.  He was the original architect of the ESP platform and ESDL interfaces, and has since worked on several HPCC Systems components.  He’s been adding JSON and REST support throughout the HPCC Systems platform, and he has begun work on abstracting ROXIE’s protocol implementation and making them “pluggable”.  He has an affinity for the implementation of standards and protocols, and is the lead mentor for adding “Internet of Things” protocols to ROXIE.

Implement an IOT pluggable protocol for ROXIE

Continuous Integration of roxie query / data deployments using Jenkins

Miguel Vazquez

Miguel is a Consulting Software Engineer and has been with LexisNexis Risk Solutions for more than 7 years. He brings more than 11 years of application development to his role within the company. He oversees the front-end development for a number of items which include ECL Watch and Configuration Manager. He specializes in OOP Javascript and is a fan of Javascript toolkits / frameworks.


Roger Dev

Roger is a Senior Architect working with John Holt on the Machine Learning Team.  He joined HPCC Systems from CA Technologies.  Roger has been involved in the implementation and utilization of machine learning and AI techniques for many years, and has more than 20 patents in diverse areas of software technology.


Mark Kelly

Mark Kelly is a software architect, and has been with LexisNexis Risk Solutions since 2013. He has many years of experience in High Performance Computing at several computer manufacturers, working on numerical math libraries, High Speed Interconnects, Message Passing libraries, Accelerators and application performance.  Mark currently works on Thor and ROXIE and some of the lower level libraries of the HPCC Systems platform that have to do with networking and performance.

System self health check

Michael Gardner

Michael has been with the HPCC Systems Platform team since 2014.  His responsibilities revolve around the HPCC Systems Platform init systems, administration scripts, and project builds.  In addition to his work on the platform, Michael maintains and contributes to several HPCC Systems Java projects.  His most recent undertakings include updating the Platform to leverage systemd, and migrating the wssql project from using antlr3 to antlr4.

Provide SELinux Policies for the HPCC Systems platform installation on Linux platforms

Russ Whitehead

William (Russ) Whitehead is an HPCC Systems Software Architect. Russ earned a BS degree in Computer Science from University of Florida as well as a MBA from the University of Miami. His background is operating systems development, network management, and voice recognition. He has been a LexisNexis Risk Solutions employee and a platform team member since 2008 and his top responsibility is the HPCC Systems security framework, which he has been contributing to since 2012.

Implement low level column level security

Jake Smith 

Jake Smith is a Lead Architect at LexisNexis Risk Solutions. He is one of the original HPCC Systems architects and has worked with the company for more than 20 years. Jake is the lead developer of Thor, the HPCC Systems Data Refinery Cluster, as well as a number of the other core HPCC Systems components.

Implement reference dafilesrv in other languages

Rodrigo Pastrana 

Rodrigo is a Software Architect with the HPCC Systems development team and he has earned both a B.S. and M.S. degree in Computer Engineering from the University of Florida. He has been with LexisNexis Risk Solutions for more than ten years, and is an active HPCC Systems contributor for more than 7 years. Rodrigo's focus has been in the design and implementation of third party technology integration. Previously he worked with IBM on enterprise level mobile device applications and voice recognition solutions.


Kevin Wilmoth

Bio coming soon


Arjuna Chala 

Arjuna Chala is Sr. Director of Special Projects, HPCC Systems, LexisNexis Risk Solutions. With almost 20 years of experience in software design, Arjuna leads the development of next-generation big data capabilities including creating tools around exploratory data analysis, data integration, IoT and Blockchain. Arjuna strives to understand new technologies and bring innovative applications and design to the HPCC System platform.

Dedicated to development excellence, Arjuna served as a key member of the team to bring the HPCC Systems platform to the open source community. In his work with HPCC Systems community leaders and system integrator partners, Arjuna’s efforts have contributed to the spread of HPCC Systems technology into the enterprise domestically as well as the international markets of China, Brazil, Europe, and India. 

Arjuna has a BS in Computer Science from RVCE, Bangalore University.


David de Hilster

David de Hilster is a Consulting Software Engineer and has earned both a B.S. in Mathematics and a M.A. in Linguistics from The Ohio State University. His background is in natural language processing and David is one of the co-authors of the computer language NLP++, including its IDE VisualText. David has been a LexisNexis Risk Solutions employee since 2015 and his top responsibility is the ECL IDE, which he has been contributing to since 2016.

APIs for HPCC Systems Data Ingestion for Common Robot Sensors
Backup MentorsProject
Gavin Halliday

DFU spray from zip/gzip files

Stuart OrtNo project assigned - Proposal Assessor
Flavio VillanustreProposal Assessor/Backup Org Admin
Trish McCallBackup Org Admin
Rodrigo Pastrana

Continuous Integration of roxie query / data deployments using Jenkins

Edin MuharemagicMachine Learning Library Projects - Proposal Assessor
Tim Humphrey

Machine Learning Library Projects - Proposal Assessor

Richard Chapman

Interfacing embedded languages into ECL
Interfacing to external datastores into ECL
Implement an IoT pluggable protocol for ROXIE

Jake Smith

Implement reference dafilesrv in other languages

Kevin Wang

Cluster Deployment with Juju Charm

Dan CamperImplement an IoT pluggable protocol for ROXIE
Xiaoming Wang

Provide SELinux Policies for the HPCC Systems platform installation on Linux platforms

Greg PanagiotatosNo project assigned - Proposal Assessor
Attila VamosSystem self health check



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