Resume
MD KAMRUZZAMAN
Full Stack Software Engineer
PHP • Laravel • JavaScript • React • Vue • AWS
- Phone:+880 1716-724245
- Email: [email protected]
- Address:
Mirpur 12, Dhaka, Bangladesh
PROFESSIONAL SUMMARY
Backend engineer with 6+ years designing and operating PHP/Laravel and Node.js services behind high-traffic products — REST API design, data modelling, caching, queue-backed workflows and the deployment around them. Track record on multi-vendor marketplace, SaaS licensing and enterprise ERP systems: payment gateway integrations, subscription and booking domains, license and update delivery, telemetry ingest from installed WordPress sites, and the query, index and cache work that keeps them fast under concurrent load. Comfortable owning a feature through to production and support, with enough React and Next.js depth to design an API its consumers can actually use.
TECHNICAL SKILLS
Languages & Frameworks:PHP 8+ (Laravel), Node.js/Express, TypeScript/JavaScript (ES6+), WordPress plugin development, React.js, Next.js, Vue.js
API & Service Design:REST API design and versioning, service boundaries and microservices, event-driven and queue-backed workflows, job scheduling, webhooks and third-party integrations (Stripe, Twilio), public SDK design and backward compatibility, idempotent retries, failure and timeout handling
Data & Persistence:MySQL, PostgreSQL, schema and index design, query profiling, N+1 elimination, Eloquent ORM and migrations, Redis for caching and rate limiting, cache invalidation strategy
Auth & Security:Token auth (Sanctum, Passport, JWT), authorization boundaries and role-aware access, input validation and output escaping, rate limiting, secret handling and server-only configuration
Performance & Scale:Server-side caching layers, query and hot-path profiling, high-volume concurrent traffic, background processing, infrastructure cost reduction, production debugging under live load
Infrastructure & DevOps:Docker, AWS (EC2, ECS, RDS, S3), Nginx, GitHub Actions (CI/CD), Git and branching strategy, deployment and release support
Real-time:WebSockets (Socket.IO, Pusher), WebRTC signalling, connection lifecycle and reconnection, real-time state sync
Testing & Quality:PHPUnit, Jest, Vitest, Playwright, typed contracts, code review, CI gates on lint, types and build
Frontend:React.js, Next.js (SSR/SSG/ISR), Redux Toolkit and RTK Query, Tailwind CSS, reusable component systems, Core Web Vitals
Other:OOP, Data Structures & Algorithms, System Design, Agile/Scrum
PROFESSIONAL EXPERIENCE
Software Engineer L2
Architect backend modules across Dokan and Appsero — subscriptions, licensing, payments, booking, vendor management — owning the data model and the versioned REST APIs above it.
Own Appsero's telemetry pipeline: ingest from installed WordPress sites, the schema it lands in, and the aggregation behind install, version-spread and deactivation reporting.
Design Appsero's licensing and update delivery, plus the appsero/client PHP SDK — a public API kept backward compatible across every version already in the wild.
Cut response times and infrastructure cost under concurrent load through indexing, caching and N+1 elimination.
Resolve production incidents across the stack, and ship the React/TypeScript dashboard screens those APIs serve.
Guard critical flows with PHPUnit, Jest and Playwright in CI; review pull requests and mentor junior developers.
Software Engineer
Designed backend architecture, REST APIs and service-oriented modules for enterprise ERP systems on Laravel and MySQL.
Modelled the schemas behind them — role-aware access, reporting queries, migrations without downtime.
Optimized performance and automated manual business processes, cutting operational overhead.
Built the Vue.js SPAs against those APIs, led technical discussions and mentored junior engineers.
Jr. Software Engineer
Built RESTful APIs and integrated third-party services on Laravel and MySQL across a range of client projects.
Maintained full-stack applications on a clean MVC structure, from schema to the Vue.js interfaces on top.
Collaborated in Agile teams on code reviews and gathered requirements directly from clients.
PROJECTS
Browser Terminal — Web SSH client: a Node service bridging socket.io to an ssh2 session, streaming a real shell to xterm.js in the browser — session lifecycle, auth and stream backpressure handled server-side, so a shell is one URL away with no local client installed. Node.js, TypeScript, ssh2, Socket.IO, xterm.js. console.kzaman.com
RTK Chat — Real-time chat and video platform in a Turborepo monorepo — a Socket.IO server handling messaging, presence and WebRTC signalling for one-to-one and group calls, behind JWT auth. Node.js, Socket.IO, WebRTC, JWT, React 19, Redux Toolkit. chat.kzaman.com
laravel/vs-code-extension #273 — Merged upstream into Laravel's official VS Code extension: Blade delimiters now space themselves, shipped as an opt-out setting scoped to Blade files. TypeScript, VS Code API, Laravel. github.com/laravel/vs-code-extension/pull/273
EDUCATION
BSc in Computer Science & Engineering
Diploma in Engineering (Computer Technology)
ADDITIONAL INFORMATION
Comfortable with system design and scalable architecture, from schema and service boundaries through to deployment.
Experience with real-time systems (WebSockets, Pusher, Socket.io) and third-party APIs (Stripe, Twilio).
Strong foundation in Data Structures and Algorithms.
Domain depth in multi-vendor marketplaces, payment gateways, SaaS licensing and usage analytics, ERP systems and WordPress plugin development.
Estimate and deliver to schedule, communicate risk early, and keep knowledge transfer part of the team routine.