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mason5052/README.md

Mason Kim

Security Engineer | Platform security, cloud defense automation, and security-focused open source

LinkedIn Portfolio


What I Work On

Public work I can explain deeply: Kubernetes hardening, WAF automation, and security-focused contributions to open-source security tooling.

  • Public project: K8s Security Baseline -- CIS benchmark audit automation, RBAC templates, network policies, and SOC 2-aligned reporting
  • Public project: AWS WAF Security Framework -- Terraform modules for AWS WAF v2 with bot protection, rate limiting, and eCommerce-focused rules
  • Open-source contributor: PentAGI -- merged PRs across OAuth hardening, runtime reliability, test coverage, observability, and Docker Compose infrastructure
  • Open-source contributor: Trivy -- test coverage contributions for container and IaC security scanning
  • Open-source contributor: Strix -- documentation fixes and bug triage for AI pentesting agents

Featured Work

  • PentAGI -- Contributor, not owner. Selected merged PRs across OAuth hardening, runtime reliability, Docker Compose health checks, and broad test coverage for core packages. Stack: Go, TypeScript, GraphQL.

Open Source Contributions

I use GitHub to show public projects I can defend in detail and merged upstream work that has third-party validation.

Project Contribution Focus Stack
PentAGI Contributor, not owner. Selected merged PRs include OAuth hardening (#120, #125, #127), runtime and reliability fixes (#150, #151, #152, #178, #179), CA private key cleanup (#168), Docker Compose health checks (#243), and test coverage across search tools, config, terminal, providers, graph/server context, schema validation, Langfuse, and Graphiti (#153, #170-#172, #189, #199-#202, #213-#214, #230-#244). Go, TypeScript, GraphQL
Trivy Test coverage contributions for vulnerability and IaC scanning packages. Go
Strix Documentation fixes and bug triage for AI pentesting agents. Python, Docker, LLM

PentAGI Highlights

  • Security and auth hardening: OAuth GET callback state enforcement (#120), required field validation in OAuth state parsing (#125), missing return fix in OAuth callback redirect (#127), and CA private key cleanup after certificate signing (#168).
  • Runtime and reliability: browser tool graceful degradation on screenshot failure (#150), http.DefaultClient mutation guard in search tools (#151), error propagation in GetTool container lookup (#152), repeating tool-call infinite loop fix (#178), detached command context isolation (#179), and pgvector Docker Compose health checks (#243).
  • Test coverage and maintainability: search tools (#153), executor helpers and terminal utilities (#172), provider coverage (#189), config and terminal packages (#199-#200), response and embeddings packages (#201-#202), graph and server context helpers (#213-#214), server models and schema validation (#230-#231), Langfuse coverage (#241-#242), and Graphiti client coverage (#244).

Certifications

Certification Issuer Valid
Certified Ethical Hacker (CEH) EC-Council 2025-2028
Terraform Associate (004) HashiCorp Current
CASE Java (Application Security) EC-Council 2024-2027

Education

Degree Institution Status
MS Cybersecurity Georgia Institute of Technology Expected 2026

Tech Stack

Python Go Terraform Kubernetes AWS AWS WAF Docker Bash Trivy Prometheus Grafana

Pinned Loading

  1. mason-kim mason-kim Public

    Security Engineer portfolio -- security research, platform defense, and cloud infrastructure projects

    HTML

  2. k8s-security-baseline k8s-security-baseline Public

    CIS Benchmark audit automation, RBAC templates, and network policy enforcement for Kubernetes clusters

    Python 1

  3. aws-waf-security-framework aws-waf-security-framework Public

    Production-grade Terraform modules for AWS WAF v2 with bot protection, rate limiting, and eCommerce-specific rules

    HCL

  4. commerce-abuse-defense commerce-abuse-defense Public

    Experimental rule-based abuse scoring and WAF rule generation for eCommerce platforms

    Python