Josh Klein

Lead PHP/Laravel Engineer

Application Architecture, AI Systems & Legacy Modernization

I take ambiguous business problems and own the path through architecture, implementation, review, infrastructure, and long-term support of production Laravel systems.

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Professional Summary

Senior application architect with 20+ years in PHP and Laravel. I design, lead, and operate business-critical systems—including data-heavy platforms, mature commerce, AI-enabled workflows, and incremental modernization of legacy applications.

Application Architecture

Deep Laravel expertise from early releases through Laravel 13: services, APIs, queues, Eloquent, and full-stack delivery with Livewire and Blade.

Technical Leadership

Set technical direction, break work into implementation plans, review code, mentor developers, and translate business requirements into systems.

Legacy Modernization

Work inside existing systems. Incremental refactoring, compatibility, and production stability instead of unnecessary rewrites.

Commerce & Data

Mature e-commerce and B2B systems, payments, fulfillment, reporting, and data architecture across MySQL, PostgreSQL, and BigQuery.

Applied AI Engineering

LLM integrations in real Laravel systems: structured output, retrieval, agent workflows, local inference, and document/data processing.

Infrastructure Ownership

Linux, nginx, Docker, Proxmox, and production/staging architecture—including GPU inference hosts—underneath the applications I build.

Work Experience

Owning architecture, delivery, and long-term support of production systems

SpecBooks

Lead Backend Engineer

Remote | March 2026 – Present

Present
  • Lead backend engineering for data-heavy Laravel 13 / Livewire applications: architecture, reporting, analytics, and incremental modernization of existing systems.
  • Set technical direction for backend work—architecture decisions, implementation plans, code review, and mentoring engineers from junior through senior.
  • Design and operate reporting and analytics against PostgreSQL and BigQuery, including schema work, query performance, and aggregation pipelines used by the product.
  • Work directly with product and engineering leadership to turn requirements into scoped backend work and keep delivery unblocked across frontend, backend, and data.
  • Own production behavior of business-critical application code: debugging, reliability, and long-term maintainability rather than one-off features.

Designbyklein

Independent Application Architect & Software Engineer

Huntersville, NC | Independent practice (concurrent)

Independent
  • Independently design, build, deploy, and maintain Laravel applications, integrations, and the Linux infrastructure they run on.
  • Own the full path from business problem through architecture, implementation, review, deployment, and ongoing support.
  • Selected work spans AI-enabled Laravel services, reporting and internal tools, commerce overlays, and hardware-adjacent software—grouped here rather than listed as separate employers.

Selected engineering projects

Local LLM inference infrastructure

Designed and built a dedicated Linux GPU workstation for local model hosting: OpenAI-compatible inference endpoints, reverse-proxy access, networking, and integration with coding-agent / local AI development workflows.

Persistent AI memory service

Laravel REST API with MySQL full-text retrieval for durable agent memory and context across development sessions—applied AI architecture, not a chatbot wrapper.

Game-server LLM integration (experimental)

Private World of Warcraft server environment: Linux administration, server scripting, APIs, and experimental LLM automation inside the game-server stack.

Minecraft server operations

Linux hosting, networking, configuration, performance tuning, and day-to-day infrastructure management for Minecraft game servers.

Telesource

Senior Technical Lead

Huntersville, NC | July 2024 – March 2026

1.5 Years
  • Architected a new Laravel 11 codebase to modernize legacy PHP systems, using service-oriented structure so new work could ship without a full rewrite.
  • Built Laravel + Livewire 3 applications with queued jobs for large SQL datasets, Excel generation, and in-browser completion notifications.
  • Automated invoice and document processing with LLM structured output and regex parsing—unstructured text to JSON, then MySQL import and analysis.
  • Delivered a mobile-friendly technician check-in/out flow integrated with internal time-tracking software for remote workforce logging.
  • Maintained and extended legacy PHP applications while modernizing the pieces that mattered, keeping production compatible throughout the transition.

Rhino Lights LLC

Senior Technical Lead

Huntersville, NC | November 2020 – July 2024

3.5 Years
  • Architected a Laravel overlay on a mature CS-Cart commerce stack, adding modern application features while keeping the legacy store operational.
  • Built service-layer order and cart flows with transaction-safe database writes, bypassing slow legacy APIs where they could not carry the load.
  • Delivered B2B dealer tooling: volume/tier pricing, Sanctum APIs, customer-facing Laravel features, and an Electron desktop client for dealers.
  • Integrated Stripe (Payment Intents, saved methods, refunds, webhooks), Shippo rate/label fulfillment, and Cloudflare at the edge.
  • Built session-based analytics, conversion funnels, and a Livewire dashboard for customer activity and sales reporting.
  • Designed multi-node Dell PowerEdge infrastructure with Proxmox, Ubuntu VMs, Docker, nginx, and mirrored production/staging environments.
  • Shipped software that crossed into hardware: prototype lighting-controller firmware, GPIO/physical triggers, and an iOS BLE app for device control.
  • Automated order/email workflows (queues, Mailgun) and added LLM-backed product recommendation hooks inside the Laravel application.

TIAA Cref

Technical Lead

Charlotte, NC | October 2013 – November 2020

7 Years
  • Led development of custom sales prototypes and internal tools, working with sales and project managers to turn business needs into working software.
  • Migrated a Kohana PHP toolchain to Laravel, improving maintainability while keeping proprietary applications supported.
  • Architected Laravel admin systems with a Vue.js frontend for data management, prototype creation, and deployment workflows.
  • Built a Laravel admin integrated with company SSO so internal users could authenticate without a parallel login stack.
  • Established Git workflows and code review so work could move to offshore teams without losing ownership of architecture or quality.
  • Partnered with IT on infrastructure for internal applications—access, uptime, and the operational side of shipping software.

Duke Energy

Front End Developer

Charlotte, NC | April 2013 – October 2013

  • Built custom jQuery plugins tailored to project requirements and refactored anonymous legacy functions into reusable plugins.
  • Translated design into hand-coded HTML with responsive, mobile-friendly layouts and consistent rendering.
  • Used GitHub for version control and collaborative development.
  • Reviewed and refactored legacy front-end code to improve maintainability and performance.

Lowe's Home Improvement

Front End Developer

Mooresville, NC | January 2012 – January 2013

  • Built jQuery-driven UI work and led QUnit testing so client-facing features shipped with fewer regressions.
  • Worked in an Agile team on feature-based front-end delivery using semantic HTML, CSS, and JavaScript.
  • Integrated AJAX/JSON against a Java backend and used GitHub for version control.
  • Prototyped interfaces and collaborated across the stack—full-stack range, not a dedicated front-end career path.

Technology Skill Set

How I actually build and operate production systems

Application Architecture

PHP 8.3 / 8.4 Laravel 13 Laravel 4–13 Service architecture REST APIs Eloquent & migrations Queues, jobs & events Legacy modernization Laravel Sanctum

AI & Automation

LLM API integrations Structured LLM output Agentic workflows Retrieval & context Local LLM inference OpenAI-compatible APIs Laravel AI integrations

Data

MySQL PostgreSQL BigQuery SQLite Schema design Query optimization Reporting systems ETL-style workflows

Front End

Livewire 3 / 4 Blade JavaScript Bootstrap Vue.js React jQuery

Infrastructure

Linux / Ubuntu nginx Docker Proxmox Cloudflare Production / staging GPU inference Dell PowerEdge

Commerce & Integrations

Stripe Shippo CS-Cart B2B / dealer systems Custom carts & orders Payment webhooks Fulfillment APIs Mailgun

Education

Art Institute of Charlotte

Associate of Applied Science: Multimedia and Web Design
Acquired March 2005

Scholarship Award Most Outstanding Portfolio Spring 2005

Get In Touch

Let's discuss your next project or opportunity

Send a message
Location

Huntersville, NC 28078

Phone
704-779-4239

References available upon request