Work

I work as a Linux Engineer. Day-to-day, I wear many hats, including customer service, code development, automation, DevOps/SRE, advocate for open-source solutions, and advocate for configuration management and infrastructure as code (e.g. Puppet, Ansible, CloudFormation, Terraform), both on-prem and in the cloud.

The following is a (very non-exhaustive) growing list of tech that I enjoy using (or need to remind myself that I use, to keep my mind fresh):

Computing

• Coding + Development:

  • Python
    • Numpy/SciPy
    • Matplotlib
    • Numba
    • CuPy
  • Fortran 90/95, 2008
  • vim for CLI, VScode for GUI

• Operating Systems:

  • Windows 10/11, Windows Server 2016/2019/2022
  • Linux (RHEL, Oracle, CentOS, Ubuntu, Debian, Kali)
  • FreeBSD + OpenBSD
  • macOS > v10+

• Linux:

  • Networking: netstat, ss, nc, mtr, iptables, firewall-cmd, ufw, tcpdump
  • Software: grep, sed, awk, lsof, strace, pidstat, etc.
  • Scripting: bash, zsh, Python, PowerShell (seriously)
  • Web: Apache, NGINX
  • Configuration Mgmt: Puppet, SIMP, Sicura, OpenVox, Ansible

• FreeBSD/OpenBSD:

  • Networking: IPFW, DNS, DHCP, BIND
  • Daemons: Apache, FTPd, SSHd, postfix

• HPC:

  • Job Scheduling: Slurm
  • Monitoring: Ganglia, Nagios
  • Cloud: AWS Parallel Computing Service (formerly ParallelCluster)
  • Tools/Libraries:
    • Red Hat GCC Toolsets + Legacy Red Hat Developer Tools
    • Environment Modules (Tcl)
    • MPI (OpenMPI)
    • VisIt

• Engineering:

  • ANSYS Systems Tool Kit (Fun fact! I'm STK - Level 1 Certified)
  • ANSYS Fluent
  • MATLAB
  • Mathematica

• Containerization:

  • Docker
  • Podman
  • Singularity + Apptainer

• Cybersecurity:

  • Vulnerability Scanning: nmap, Tenable Nessus
  • Tooling: OpenSCAP, nmap, burpsuite, tcpdump, tshark, WireShark
  • Security Hardening:
    • CIS
    • DISA STIG

• Cloud:

  • AWS:
    • Compute (EC2)
    • Identity Mgmt (IAM)
    • Database (RDS)
    • Serverless (Lambda)
    • PKI + KMS (Keypairs)
    • Networking (VPCs, Subnets, NAT Gateways, Security Groups, NACLs, etc.)
    • CloudFormation + CDK
    • AWS CLI + Python SDK (boto3)
  • Azure:
    • Compute
    • Database
    • Azure AD / OpenID Connect (OIDC)
    • PowerShell Azure Modules
    • Application Gateway + Firewall
  • GCP:
    • Compute
    • SSL/TLS Certificate Management
  • Terraform (basics):
    • init, validate, plan, apply, destroy (+ subcommands)