development

  • Java 2, 4, 6, 7 and lots of Java 8, plus the usual libraries
  • Python 2.4 - 2.7, 3.4+ & libraries (inc. PyGTK, some PyParsing, NumPy etc).
  • Increasingly, Haskell plus some Hspec, Servant, QuickCheck, Snap.
  • Android SDKs 12-24, libGDX.
  • Scala 2.11 & libraries: scalatest, elastic4s, json4s etc.
  • Groovy 2.x & various libraries.
  • Javascript, JQuery, Meteor, d3.js, Angular.
  • HTML / XHTML 2-5
  • CSS 2 & 3, and LESS / SASS.
  • Databases: RDBMS (MySQL, DB/2 etc)
    and NoSQL (MongoDB, Cassandra).
  • Git, Mercurial, Perforce, Subversion

systems / devops

  • Linux: Ubuntu x64 (6.10 - 16.10)
  • Linux: CentOS / Fedora
  • Cloud infrastructure (AWS, Digital Ocean etc).
  • Docker 1.5 - 1.12 & Docker Compose.
    Some Kubernetes, Mesos / Marathon. Virtualbox.
  • Gradle, Maven & plugins, some Ant and Ivy, SBT. Also Stack & Cabal.
  • BASH, KSH, ZSH, Python for sysadmin.
  • Web Servers: Nginx, Apache, Tomcat, Jetty, node.js
  • PKI & SSL, OpenSSL. Also JWTs
  • Video & audio transcoding with ffmpeg / avconv, libx264.
  • CI systems: Jenkins, TeamCity, Travis ecosystems.
  • IoT : Z-wave, MQTT, Amazon Alexa etc.