Demitri A. Morgan

• email: [email protected]
• github: Deconstrained
• facebook: demitri.morgan
• linkedin: demitrimorgan
• bluesky: demitrimorgan.com

Qualifications

• technical problem-solver
• independent worker
• mentor
• team player
• risk manager
• threat modeler

Expertise

• systems administration
• site reliability engineering
• network configuration & troubleshooting
• software development
• customer support
• software integration
• web technologies
• computational physics
• tutoring

Experience

Site Reliability Engineer  at  PagerDuty, Inc.

• Zero-downtime upgrades of load-bearing software systems
• Provisioning and automation of infrastructure-as-a-service resources
• Credential rotation and secrets management
• Observability systems management
• Incident response
• Service mesh

• Developed a VM provisioning bootstrap system to overcome the Elastic Cloud Compute launch template user data limit
• Converted site monitoring management tooling from EC2 to serverless
• Migrated load-bearing services from Nomad to Kubernetes using Route53 traffic splitting
• Implemented Route53 resolver rules for Consul service discovery
• Acted as project lead in the graceful decommissioning of several high-cost services

Software Development Engineer  at  PagerDuty, Inc.

• Ruby and Rails upgrades of the central monolithic service
• Network and service diagnostics
• Refactoring, bug patching and maintenance of core application services
• Incident response

• Contributed development to a widely-used internal administrative web application

Technical Support Engineer  at  PagerDuty, Inc.

• Managing escalated customer support issues
• API integration troubleshooting, documentation and developer enablement
• Bug diagnostics and reverse engineering
• Maintenance, improvement and authorship of internal support tooling and documentation

• Optimized and migrated to Python 3 the account cloning tool used by Support and Success teams
• Created, documented and maintained a popular, long-lived PagerDuty API client for Python
• Won Sales Achievers Award 2019: Services MVP

Support Engineer  at  Hurricane Electric LLC

• Hands-on datacenter support and troubleshooting
• Colocation security
• Datacenter hardware installation
• Cable management
• Network, email and web hosting troubleshooting
• Internal network and system administration tool development

• Created a scanning system to detect vulnerable WordPress installations in customer environments
• Developed a domain zone auditor for detecting problematic DNS configurations

Software Engineer  /  Systems Administrator  at  X2Engine Inc.

• Configuration and maintenance of diverse IT systems
• Development of software components and services
• Internal systems and process development
• Documentation
• Customer support

• Developed web software and application stack deployment process
• Introduced best practices including unit/integration testing and documentation
• Automated many steps in the SDLC and update/extended support process
• On-boarded four other software engineers
• Built new REST API
• Configured systems monitoring
• Developed software registration / analytics service
• Administered diverse IT assets including phone system, surveillance and door locks

Research Associate at NASA Ames Research Center  with  University Space Research Association

• Working with professors on astrophysical research pertaining to the formation of planetary systems and rings via numerical methods

• Co-author of P. R. Estrada et al., Icarus 252 (2015) 415–439
• Implemented components of Gadget-2 in a planetary nebula simulation
• Developed data parsing, reduction and visualization tools
• Redesigned single-threaded scientific computing applications for running as multiple threads in parallel with OpenMPI

Web Development Consultant  for  Life Lab Science Program

• WordPress theme development
• Performing website management and administration tasks

• Migrated a static 30+ page HTML website into a dynamic website managed by WordPress
• Wrote parsing tools with regular expressions to assist in automatic migration

Tutor  at  Aptos Learning Center

• Mathematics, logic, analytical thinking and English syntax tutoring of students grade 5-11 with learning differences
• Creating and implementing supplemental teaching aides for instruction in arithmetic
• Implementing the On Cloud Nine(tm) Teaching System

Tutor  with  Merit Educational Consultants LLC

• Tutoring/instruction in web design
• Development and editing of physics laboratory curricula
• Mathematics (SAT/College prep) tutoring

Reader  /  Grader  at  UCSC Division of Physical and Biological Sciences

• Proofreading and evaluation of coursework in physics at the undergraduate level
• Topics included relativity, thermodynamics, quantum mechanics and electrodynamics

Skills

Languages

• Python
• Ruby
• Elixir
• Shell
• JavaScript
• Golang
• SQL

Cloud, DevOps and IT

• AWS
• Ansible
• Buildkite
• Chef
• CircleCI
• Datadog
• Docker
• Hashicorp Nomad, Vault and Consul
• Istio
• Kubernetes
• PagerDuty
• SumoLogic
• Terraform

Web Development

• Web frameworks incl. Ruby on Rails, Falcon, Phoenix & Yii
• WordPress

Scientific Computing and Research

• Fortran 77/90
• OpenMPI
• MatLab/Octave
• Mathematica
• NumPy
• MatPlotLib
• LaTeX

Software

• Linux
• Nginx
• Apache
• Nagios
• Asterisk

Education