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Cloud · Security · Automation

Lisi Zejnullahu

Cloud System Administrator and software engineer focused on secure infrastructure, platform automation, and operational reliability.

I manage AWS-hosted Windows and Linux environments across patching, vulnerability remediation, compliance, identity, backups, and production operations. I also build software that turns repetitive infrastructure work into reliable, auditable workflows.

Selected work
RésuméGitHubLinkedIn
Current
General Dynamics Information Technology
Role
Cloud System Administrator
Location
Shreveport, Louisiana
Focus
Cloud SecurityPlatform EngineeringInfrastructure Automation

Available for platform and cloud security roles

01Scope of work

What the work actually consists of.

Production infrastructure, the security processes around it, and the software that keeps both consistent.

  1. 01

    Multi-environment operations

    Support AWS-hosted Windows and Linux systems across multiple environments, from routine administration through scheduled production maintenance.

  2. 02

    Patch and vulnerability management

    Own the workflows behind maintenance preparation, remediation, post-change validation, and evidence collection.

  3. 03

    Security and compliance

    Work across hardening, identity administration, backup validation, and audit-focused operations where the process has to hold up under review.

  4. 04

    Software-driven operations

    Build internal platforms and automation that replace repetitive manual procedures with reproducible, reviewable workflows.

02Selected work

Software built to make infrastructure operations repeatable.

A private platform built for cloud operations, followed by supporting work in platform, security, and application engineering.

01Platform Engineering · Cloud Operations · Automation

Cloud Operations Automation Platform

A private platform I designed and built to improve the reliability, consistency, and auditability of cloud maintenance and vulnerability-management operations.

The system replaces fragmented manual procedures with controlled workflows, validation, reporting, and operational evidence.

Scope of the systemPrivate system
01Operations
02Automation
03Validation
04Reporting

Source and implementation details are not public.

Capabilities

  • Infrastructure automation
  • Maintenance workflow orchestration
  • Vulnerability-management support
  • Validation and reporting
  • Audit-ready operational evidence

Status

Designed and built by me. Source and implementation details are not public.

Additional work

  1. 02

    SecretHound

    Security engineering

    Node.js / TypeScript

    Credentials leak into repositories through ordinary mistakes, and the cost of finding them late is high.

    Tooling that scans source for exposed secrets and supports the hygiene workflow around triaging and clearing what it finds.

    SourceSecretHound on GitHub
03Experience

From application engineering to production infrastructure.

  1. Feb 2026 — Present

    Current

    General Dynamics Information Technology

    Bossier City, Louisiana

    Cloud System Administrator

    Support AWS-hosted Windows and Linux environments across patching, vulnerability remediation, compliance, identity administration, backup workflows, maintenance operations, and automation.

    • Own Windows and Linux customer patching across maintenance windows, change requests, backups, validation, and 24/7 on-call.
    • Administer AWS and identity operations across EC2, IAM, Systems Manager, Backup, Inspector, Security Hub, CloudTrail, access reviews, and Active Directory.
    • Triage Inspector, Security Hub, and Qualys findings, build remediation plans, and support RHEL 8/9 CIS-aligned hardening.
    • Develop internal reporting and automation tools for maintenance preparation, validation, and evidence collection.

    AWS / Systems Manager / Inspector / Security Hub / IAM / Active Directory / Windows Server / RHEL

  2. Nov 2024 — Feb 2026

    Stealth Startup

    New York, New York

    Full Stack Engineer (Contract)

    Built and operated the backend for a production platform, with the weight of the work on access control, auditability, and deployment discipline.

    • Built Laravel APIs with Sanctum authentication, role-based access, audit logging, validation, pagination, rate limits, and structured error handling.
    • Implemented Socket.IO and Redis messaging with Firebase push notifications, delivery tracking, and retry behavior.
    • Managed GitHub Actions pipelines, Dockerized deployments, TLS and firewall hardening, backups, health checks, and logging.

    Laravel / Redis / Docker / GitHub Actions / RBAC

  3. Sep 2023 — Feb 2026

    Freelance and Contract

    Remote

    Full Stack Engineer

    Delivered SaaS and e-commerce systems end to end, with maintainable API layers, payment flows, and automated deployments.

    • Built Laravel and Next.js platforms with Stripe billing, role-based access, real-time scheduling, and Firebase integrations.
    • Improved reliability through performance tuning, API optimization, SEO and analytics work, and release support.

    Laravel / Next.js / Stripe / CI/CD

  4. Jul 2024 — Sep 2024

    PONT

    United Kingdom

    Full Stack Developer

    Improved a React and TypeScript scheduling system, focused on clearer interaction and stronger maintainability.

    • Integrated date-range navigation with custom controls and automatic data reloads into the scheduling interfaces.
    • Built React Query hooks for paginated and filtered APIs, refactored components, added internationalization, and containerized an auth microservice with Docker Compose.

    React / TypeScript / React Query / Docker

  5. Aug 2023 — Feb 2024

    BBros L.L.C.

    Kosovo

    Web and Mobile Developer

    Improved mobile application performance and backend efficiency for a production React Native product.

    • Refactored a React Native codebase, reduced bundle size, and improved Lighthouse performance scores into the 90s.
    • Added MySQL indexing strategies that lowered query cost and improved API response times across high-traffic endpoints.

    React Native / MySQL

  6. Mar 2022 — Aug 2023

    INSITECH

    Kosovo

    Full Stack Developer

    Helped launch React, Next.js, and Node.js public-sector portals.

    • Cut key response times from over 30 seconds to under one second.
    • Containerized legacy .NET services with Docker and GitHub Actions, and built Laravel Sanctum and Redis real-time messaging with Leaflet.js data visualizations.

    Next.js / Node.js / Laravel / Redis / Docker

Sep 2021 — Sep 2024

University of Ukshin Hoti

Education

B.S. in Software Development and Design

04Capabilities

Tools and domains I work in day to day.

01

Cloud operations

  • AWS
  • EC2
  • S3
  • VPC
  • IAM
  • Systems Manager
  • AWS Backup
  • Inspector
  • Security Hub
  • CloudTrail
02

Systems and security

  • Windows Server
  • Linux
  • RHEL 8/9
  • Active Directory
  • Patch management
  • Vulnerability remediation
  • Qualys
  • CIS hardening
  • On-call operations
03

Platform and automation

  • Python
  • FastAPI
  • Docker
  • Jenkins
  • Ansible
  • GitHub Actions
  • CI/CD
  • REST APIs
  • Workflow automation
04

Software engineering

  • React
  • Next.js
  • TypeScript
  • JavaScript
  • Laravel
  • PHP
  • Node.js
  • PostgreSQL
  • MySQL
  • Redis
05About

I started in software and moved toward the infrastructure it runs on.

I began as a software developer building web applications, APIs, and backend systems. Over time my work moved closer to the infrastructure those applications depend on.

Today I work across cloud operations, systems administration, security, and automation. My software engineering background remains central to how I approach infrastructure: repetitive work should be automated, changes should be observable, and operational processes should produce clear evidence.

I am most interested in roles where cloud infrastructure, security, platform engineering, and software development overlap.

06Contact

Building reliable systems is the work.

Interested in cloud infrastructure, platform engineering, DevSecOps, cloud security, and automation-focused opportunities.