PROFESSIONAL SUMMARY

Full Stack Architect & Engineering Leader with extensive experience shipping high-traffic production software across SaaS, enterprise, and adtech. Proven track record scaling backend infrastructure to handle 10K+ req/sec for global clients, delivering 13 enterprise solutions while mentoring 35+ engineers. Recently delivered a cross-platform SaaS product powered by a multi-provider AI orchestration engine with DAG-based workflow execution and tiered cluster routing. Engineered enterprise-grade Stripe billing, self-hosted analytics, and deployment pipelines from scratch. Authored 9 enterprise-grade Laravel packages (6 open-source).

CORE TECHNICAL SKILLS

  • Backend & Architecture: PHP 8.x, Laravel (9–13), MySQL, PostgreSQL, Redis, REST API Design, DDD, Repository Pattern, CQRS, Microservices, Node.js
  • AI & ML Engineering: Multi-LLM Orchestration (OpenAI, Anthropic, Gemini, DeepSeek, Mistral, Cohere, Groq, Ollama +4), DAG Workflow Engine, Prompt Caching, Tiered Cluster Routing, Cost-Gated Inference, Sliding Window Rate Limiting
  • Payments & SaaS: Stripe (Cashier, Webhooks, Multi-tier Subscriptions, Dynamic Checkout, Customer Portal, Coupon/Dunning, Plan-Role Sync)
  • Frontend & Cross-Platform: React, Vue.js, JavaScript/TypeScript, Electron (macOS/Win/Linux, multi-arch), Browser Extensions (MV3: Chrome, Firefox, Safari, Edge, Opera, Brave), PWA, RxDB, Responsive Design, CSS Animations
  • DevOps & Cloud: AWS (EC2, S3, RDS, SES, ALB), GCP, VPS (Contabo, Oracle), Docker/Docker Compose (multi-env), Nginx, CI/CD Automation, Matomo Analytics, Shell Scripting
  • Quality & Process: TDD (PHPUnit/Testbench), OpenAPI/Swagger, Spec-Driven Development, Code Review Leadership, AI-Assisted Engineering

PROFESSIONAL EXPERIENCE

LEAD FULL STACK ARCHITECT & ENGINEER (Contract) — April 2025 – Present

Petition Minder · Client: Everest Innovation Lab, Honolulu, USA · petitionminder.com (demo available on request)

Sole architect and developer of a cross-platform SaaS civic-engagement platform, end-to-end — from system design through production release across web, desktop, browser extensions, iOS, Android, and mobile PWA.

AI Orchestration Engine (mzaman/sonata):

  • Designed and built an enterprise-grade, application-agnostic AI orchestration package supporting 12 LLM providers with pluggable driver architecture, DAG-based workflow execution (10-step node pipeline with schedule/cost/budget gates), and infinite-loop protection
  • Built multi-tier cluster provisioning with weighted pool routing, automatic failover chains, per-request + monthly cost caps, and a plugin architecture keeping the AI kernel domain-agnostic
  • Implemented sliding-window rate limiting, prompt caching, telemetry, heuristic evaluation, and workflow versioning

Backend Systems & Analytics:

  • Architected a full-lifecycle Stripe billing package (mzaman/laravel-stripe) with multi-tier plans, automated plan ↔ role synchronization, dynamic checkout, coupon management, customer portal, and themed pricing pages, eliminating manual entitlement provisioning
  • Engineered a Raindrop.io-compatible REST API (mzaman/bookmark-server) with OAuth 2.0, circuit-breaker resilience, repository-pattern data layer, caching, and rate limiting
  • Built self-hosted campaign tracking (mzaman/trails) and Matomo analytics integration (mzaman/laravel-matomo-tracker), improving sales attribution accuracy by 45%
  • Designed a full ad and campaign management domain with advertiser management, flight scheduling, zone targeting, impression analytics, and multi-channel distribution

Cross-Platform & Infrastructure:

  • Shipped 6 browser extensions (Chrome, Firefox, Safari, Edge, Opera, Brave) using Manifest V3 with React and a three-tier detection escalation (DOM → PHP extraction → AI)
  • Built 12 desktop distributions via Electron and an installable PWA
  • Adapted open-source Raindrop codebase into iOS and Android apps with AI-assisted native development, backed by fully custom Laravel API
  • Containerized reproducible multi-environment orchestration (local/dev/staging/production) with Docker Compose and multi-provider deployment automation (AWS, GCP, and others)

LEAD SOFTWARE ENGINEER + SOLUTION ARCHITECT — July 2021 – March 2025

DreamOnline Limited, Dhaka, Bangladesh

  • Scaled backend systems using PHP/Laravel and AWS for 11 Japanese clients, directly driving 30% user engagement growth and improved customer retention across 13 enterprise solutions
  • Engineered AWS infrastructure handling 10K+ requests/sec with 99.9% uptime through zero-downtime deployments
  • Led system architecture overhauls improving operational efficiency by 35% — redesigned database schemas, API layers, and Redis caching strategies
  • Cut deployment time by 30% through custom CI/CD automation, accelerating feature delivery cadence
  • Established code review standards that reduced post-release defects by 40% across the engineering organization
  • Mentored 35+ developers, improving team velocity by 25% through standardized practices and knowledge-sharing programs

SENIOR SOFTWARE ENGINEER — April 2019 – June 2021

DreamOnline Limited, Dhaka, Bangladesh

  • Developed 11 enterprise solutions using PHP, Laravel, and Vue.js — reduced API response times by 40% through database optimization and backend architecture improvements
  • Implemented scalable features boosting user engagement by 20% and user retention by 25%, directly supporting product-led growth strategies

SENIOR SOFTWARE ENGINEER — September 2015 – March 2019

ServicEngineBPO, Dhaka, Bangladesh

  • Built high-impact ad creatives for Verizon/Oath (AOL), Yahoo, and Celtra using GSAP animations — improved CTR by 40% and ad load speed by 40%
  • Developed custom ad tracking and real-time analytics ensuring 99% campaign accuracy and enabling data-driven optimization
  • Automated ad production workflows, reducing manual effort by 50% and campaign setup time by 30%

SENIOR SOFTWARE ENGINEER — February 2012 – August 2015

Gononet Online Solutions Ltd, Dhaka, Bangladesh

  • Built ERP, POS, and hospital MIS systems that improved operational efficiency by 40% across healthcare and retail clients
  • Delivered a cloud retail platform with multi-location inventory, invoicing, and reporting — completed 10+ projects on time and budget

SOFTWARE ENGINEER — February 2011 – January 2012

Nibs Solutions Limited, Dhaka, Bangladesh

  • Developed e-commerce modules increasing checkout completions by 15% through optimized booking and payment flows
  • Built multi-vendor shopping platform and scalable advertising/invoicing solutions

WEB DEVELOPER — April 2008 – January 2011

Autoline, Dhaka, Bangladesh

  • Built an automotive portal for buying, selling, and comparing vehicles — increased user engagement by 30%

AUTHORED PACKAGES & NOTABLE PROJECTS

Laravel Packages (Mix of Proprietary and MIT-Licensed)

  • mzaman/sonata [Proprietary] — Enterprise AI orchestration: 12 LLM drivers, DAG workflow engine, cluster provisioning, rate limiting, telemetry
  • mzaman/laravel-stripe [Proprietary] — Full-lifecycle Stripe billing: subscriptions, webhooks, role-sync, admin UI, themed pricing pages
  • mzaman/bookmark-server [Proprietary] — Self-hosted Raindrop-compatible API: OAuth 2.0, circuit breaker, bulk ops, caching
  • github.com/mzaman/trails — UTM attribution tracking for Laravel: registration attribution, referrer tracking, bot detection
  • github.com/mzaman/laravel-api-response — Standardized API responses: success/error/validation/exception handling, pagination, i18n
  • github.com/mzaman/laravel-simple-module — DDD code generator: scaffolds Models, Controllers, Services, Repositories, Tests
  • github.com/mzaman/laravel-dockyard — Dockerized Laravel environments: cut developer onboarding time by 60%
  • github.com/mzaman/insight-cms — Dockerized Laravel CMS: NewsAPI integration, Redis caching, rate limiting, role-based access
  • github.com/mzaman/laravel-matomo-tracker — Server-side Matomo tracking for Laravel: queue-based events, facade API, configurable per-site tracking

Client Projects

  • Cross-Platform Reservation System: 10K+ req/sec with 25% improved user satisfaction
  • Health Information System (Japan Tennis Association): 30% improvement in athlete performance monitoring
  • Video Streaming & Playback Analytics: 20% improvement in viewer retention through playback analytics
  • AdTech Creative Automation (AOL/Yahoo): 40% faster load times, 40% higher click-through rates

Personal Projects

  • Interactive Demos: Mapbox geoJSON activity map (mapbox-app) · PhysicsJS solar system simulator (solar-sim)