Jeff Simpson Email & Phone Number

Denver, Co, Us

Santa Barbara, Ca, Us

Boston, Massachusetts, Us

- Assisted in porting several services from a synchronous stack (using threads) to async via the tokio crate- Improved memory and processing time in an internal service written in Rust by 10x- Developed proof of concept using Kafka for event ingestion in a Rust service and persisting to the database- Active member of a performance and reliability team within ThreatX (we handle improving existing services and add new services to our stack)- Replicated production service stack locally using Docker Compose (big boost for dev productivity)- Implemented Github action in Rust to leverage internal libraries

San Diego, Ca, Us

- Created typesafe user interfaces using ScalaJS and React- Implemented various backend features using Scala, Datomisca, Play 2 Framework, Cats, Zio, Shapeless and other libraries- Lead implementation of search infrastructure using ElasticSearch- Built backend for MLS feed processing leveraging Docker/Amazon ECS Fargate tasks- Various devops type tasks relating to managing AWS services

San Francisco, Ca, Us

- Developed various financial models using Scala, Spark and Redshift- Implemented application to allow customers to view financial graphs.

San Diego, Ca, Us

We do it all here:- Play 2 framework (Scala)- Datomic- AWS (Elastic Beanstalk, EC2, SQS)- DevOps- Some JS- Quality Assurance

San Francisco, California, Us

- Implemented Scala and Akka Persistence-based alert ingestion framework- Created deployment scripts to generate Debian packages from an SBT build and deploy via Jenkins (push button deploy)- Implemented a series of Ruby scripts to monitor various parts of the VictorOps stack including alert ingestion rate, server utilization in the cluster and Kafka throughput- Implemented Zookeeper-based cluster coordination scheme- Implemented an aggregation framework plugged into various parts of the system: notifications, timeline messages, etc- Helped implement several Puppet policies to automate infrastructure

Washington, Dc, Us

- Tech Lead for Operational Analytics group. We're responsible for developing monitoring for system analytic data and alerting on such.- Created a Scala scheduling and monitoring service using Play Framework 2, which allows users to define custom monitors (using JRuby-1.7 embedded in the server) and schedule them via a web UI. Fully clustered using Akka-2.1 clustered Actors. Earlier versions of the stack utilized Hazelcast for clustering and replication. Recently ported DAO layer to Slick.- Developed numerous Scala-based services used by the User Acquisition team.

London, Gb

- Developed RESTful services employing functional programming techniques with the Scala language. Services include: Ad, Proxy, Email and profile extraction- Contributor to Blue Eyes Scala Web 3.0 RESTful framework. Wrote XLightWeb-based HTTP client.- Created sbt-deb-plugin for creating Debian packages from simple-build-tool.

- Lead Developer on various Alfresco enterprise content management implementations. - Created an Eclipse-based development environment for Alfresco providing increased developer productivity and debugging capabilities.- Created several Python tools for interacting with Alfresco's workflow engine. - Author of the FreshDocs Android application for Alfresco.- Lead Developer/Architect of Etendi (http://www.etendi.com), a private social network for distance parenting.

Us

- Lead UI developer for the Fastclick Search Engine Management (SEM) application. Responsible for architecture and leading the implementation of the customer facing “Advertiser GUI”, which allowed customers to create and manage search campaigns.- Developed modeling and optimization code for customer search engine listing and portfolio management.- Created automated build and release scripts (in Python).

Santa Barbara, California, Us

Developed Adwords management and optimization platform using Java.

Fort Lauderdale, Fl, Us

- Developed Java-based GoToAssist (http://www.gotoassist.com/) Management Center, a tool allowing a company administrator to manage GoToAssist support representative accounts. - Enhanced features of the Broker (a proprietary Java Application Server) including: Optimized service scheduler and a re-factored client deployment framework for GoToAssist.

- Lead developer for the design and implementation for the 4th generation, J2EE-based, i-Supply application. In-depth, hands-on knowledge of the Struts MVC framework, Enterprise Java Beans (including CMR), and DAO/JDBC. Gained familiarity with JBoss, Weblogic 7, Oracle 9ias, Apache, and Tomcat 4.- Lead developer of the i-Supply 3rd generation i-Supply runtime client framework and user interface. Initially prototyped in Python and later re-written in C++.

- Maintained and developed new features for a Java application server, developed in-house, used to serve all content to the e-commerce storefront.- Developed monitoring software for application server using GTK and Python.

Goleta, Ca, Us

- Developed CO$TAT 5.0 (Cost Analysis Statistics Package), a C++/MFC based application.- Created an improved reporting mechanism for ACE (Automated Cost Estimator) by employing in-depth knowledge of the MFC print/preview architecture and C++ templates.- Provided enhancements and bug fixes for ACE (Automated Cost Estimator), a C++/MFC application.

- Developed C++ field automation applications.- Maintained home health care application written in Powerbuilder- Created Installit scripts