Oracle AdvertisingI work on a small, agile development team responsible for the following areas: - Continuing operation and upgrade of multiple advertising platforms brought into the organization via technology acquisitions - Extending best practices and architectures to incorporate new advertising partners in the platform - Unifying the platform under a common architecture and technology stackTechnology stacks currently in use: - Scala & Apache Spark on AWS, Qubole and Oracle Cloud (OCI) Data Flow - Python on Apache Airflow and Argo Workflows on Kubernetes - Scala/Akka/Java on Docker/Kubernetes

Responsible for implementation and delivery of high-visibility software systems in the company on the company's Cloudera-based big data infrastructure. Projects include: -- A greenfield customer-relationship management system, integrating marketing and outreach efforts of a number of company teams -- A re-implementation of the company's provider directory search applicationsTechnologies: -- Cloudera Hadoop -- Hive, Impala, MapReduce2/YARN, Spark, Spark Streaming, Hadoop Streaming, Oozie, Sqoop, Cloudera Manager, Hue, Solr -- Amazon Web Services (Certified Solutions Architect - Associate) -- Languages -- Scala, Haskell, Java, JavaScript, Python, shell -- Agile -- Rally, CI/CD (Jenkins, uDeploy), Ansible, Kubernetes, OpenShift -- Tech lead of teams ranging from 4 to 15 developers -- Wrote and maintain a Haskell-based library to pull Cloudera operational data from Cloudera Manager Web UI and REST API, Oozie REST API, Apache Spark Web/REST API, to support operational dashboards written in React/JS. -- Responsible for coordination of business and technical requirements between the Big Data analytics team (of which I am a member) and the various customer organizations in Cigna which require services from the Cloudera clusters.

Greenfield development of hardware-intensive content-delivery platform.Java/Dropwizard/Ubuntu-14.04 lightweight enterprise application platform; AWS integration; heavy integration with a variety of platform hardware/devices.Led the 15-member team developing the device software.

Member of an early-stage big-data team analyzing content-delivery systems to improve customer quality of experienceBerkeley Data Analytics Stack (BDAS) (Spark, Spark Streaming, Shark, GraphX), Druid (the column-oriented database), Cube, MongoDB, Hive, Kafka, ZooKeeper, MySQLIn-house and Amazon EC2 (Elastic Compute Cloud) cluster deploymentConfiguration, operational monitoring and analysis of the data ingest system

Developed services to expose existing Swing-based fixed-income research functionality to the bank’s wider organization and to its clients.SOAP-based and RESTful web service development, using JMS and Nirvana messaging to facilitate loose coupling.To monitor application usage and performance , designed and developed a system to perform application log-file analysis and to display long-term statistics/trends (Java, R, Shiny/RStudio).

Java enterprise analysis, design and development, with emphasis on Java process monitoring, performance analysis and tuning, primarily for financial-management and telecommunications firms. Author and maintainer of the Gorilla Logic MonkeyWrench open-source Java profiler.