Building Scalable Backend Architectures & Modern Web Solutions

I am Faisal Mehmood, a Senior Full Stack Engineer. I design and develop high-performance applications using Node.js, Next.js, Python, and robust database systems.

Faisal Mehmood

About Me

Engineering Scalable Solutions

I am a Senior Full Stack Engineer with over 5 years of experience in designing and developing scalable, high-performance web applications. My expertise spans the entire stack, from architecting robust backends with Node.js, Nest.js, and Python, to building dynamic, SEO-optimized frontends using Next.js and React.

I specialize in solving complex engineering challenges, whether it's building custom data pipelines, optimizing database queries, or re-architecting legacy CMS platforms into modern, headless solutions. My WordPress expertise includes building high-performance custom themes, plugins, and headless WordPress architectures for enterprise clients.

I value clean code, technical ownership, and delivering solutions that drive real business impact.

Career Journey

Professional Experience

Lead Backend Engineer

Revnix, fmr. Revnix Technologies

Jan 2024 – Present
Haripur District, Khyber Pakhtunkhwa, Pakistan

Leading backend engineering efforts across multiple high-impact projects, focusing on scalable system design, API development, and cloud deployment.

Key Achievements
  • Architected and developed scalable backend systems using Node.js, Nest.js, Express, and PostgreSQL/MongoDB.
  • Designed and deployed a microservices architecture supporting 50,000+ active users, ensuring high availability.
  • Implemented robust CI/CD pipelines with Docker & AWS, improving deployment reliability and system uptime.
  • Mentored junior developers, improving team productivity and code quality across the engineering department.
Node.jsNest.jsPostgreSQLMongoDBAWSDockerMicroservices

Full Stack WordPress Developer

Revnix, fmr. Revnix Technologies

Feb 2022 – Jan 2024
Haripur District, Khyber Pakhtunkhwa, Pakistan

Engineered high-performance WordPress solutions for enterprise and mid-sized clients, focusing on speed, scalability, and custom functionality.

Key Achievements
  • Built dynamic eCommerce and membership systems using WooCommerce and Paid Memberships Pro.
  • Developed custom themes and plugins with clean architecture principles, achieving 90+ Lighthouse performance scores.
  • Created a custom WordPress CMS that reduced plugin dependency by 60%, improving stability and long-term maintainability.
  • Delivered optimized REST API integrations for seamless frontend-backend communication.
PHPWordPressWooCommerceREST APIsPerformance Optimization

Frontend Web Developer

Revnix, fmr. Revnix Technologies

Mar 2021 – Feb 2022
Islamabad, Pakistan

Contributed to multiple user-facing platforms by building fast, responsive, and SEO-friendly interfaces.

Key Achievements
  • Developed responsive frontends using React, JavaScript, HTML, CSS, and SCSS.
  • Integrated REST APIs to deliver smooth, dynamic user experiences across applications.
  • Enhanced website performance by 40% and accelerated UI delivery by 30% through reusable component libraries.
  • Improved SEO and load time across several client-facing websites.
ReactJavaScriptSCSSUI/UXSEO

Services

What I Offer

System Architecture

Designing scalable microservices, RESTful APIs, and data pipelines using Node.js, Nest.js, and Python.

Full Stack Development

End-to-end web application development with modern frameworks like Next.js, React, and TypeScript.

Enterprise CMS Solutions

Architecting high-performance custom themes, plugins, and headless WordPress implementations.

WordPress Development

Custom theme development, plugin architecture, WooCommerce solutions, and performance optimization for enterprise WordPress sites.

Database Management

Expertise in MongoDB, PostgreSQL, and MySQL, ensuring data integrity and optimized query performance.

Performance Optimization

Improving website load times, Core Web Vitals, and overall system efficiency.

DevOps & CI/CD

Implementing CI/CD pipelines using Docker and AWS to improve scalability and reliability.

Skills

Technical Expertise

Frontend

ReactNext.jsTypeScriptJavaScriptHTMLCSSSCSSTailwind CSSMaterial UIRedux

Backend

Node.jsNest.jsExpress.jsPythonFastAPIPHPGraphQLREST APIs

Database & CMS

MongoDBPostgreSQLMySQLSupabaseWordPressStrapiPayload CMS

DevOps & Tools

DockerAWSGitGitHubCI/CDPostmanVercelFigmaJira

Industry & Domain

E-CommerceFinTechNews & MediaEnterprise SaaSPayment GatewaysContent PlatformsData Pipelines

Projects

Featured Work

E-Commerce Project

Lead Backend Engineer

A fully custom CMS designed to replace WordPress, significantly reducing long-term costs and improving performance.

Challenge:

The client needed to move away from a rigid WordPress setup that was becoming costly and slow to scale.

Solution:

Architected a custom CMS using Next.js and Drizzle ORM with role-based access control and multi-database support.

Impact:

Reduced dependency on third-party plugins by 60% and improved site performance scores to 90+.

Next.jsDrizzle ORMNode.jsMulti-DB Support

The National Pulse

Full Stack Developer

A high-traffic news platform requiring a robust subscription model and payment integration.

Challenge:

Needed a seamless way to handle subscriptions and payments for a growing user base.

Solution:

Integrated Paid Memberships Pro with Stripe, Google Pay, and Apple Pay. Developed a custom theme for optimal speed.

Impact:

Successfully supported a large user base with secure payment processing and fast load times.

WordPressPHPStripePaid Memberships Pro

E-Commerce Project

Full Stack Developer

A comprehensive e-commerce platform for heavy equipment with complex inventory management.

Challenge:

The existing system lacked advanced filtering and real-time inventory updates.

Solution:

Built a Headless WordPress solution with Next.js frontend, implementing advanced filtering and Stripe payments.

Impact:

Enhanced user experience with instant filtering and streamlined checkout process.

Next.jsNode.jsHeadless WordPressStripeRedux

PCI Security Standards Council

Backend Developer

A security standards organization requiring a secure and scalable web presence.

Challenge:

Required integration with multiple third-party services while maintaining strict security standards.

Solution:

Developed custom REST API integrations and Elementor widgets. Optimized backend logic for security.

Impact:

Ensured secure data handling and improved backend scalability for future growth.

WordPressElementorREST APIsPHP

Enterprise Data Pipeline

Python Backend Engineer

Core connector development for a high-volume logging and monitoring product.

Challenge:

The platform needed reliable, high-throughput data ingestion from various sources for error tracking.

Solution:

Developed custom Airbyte connectors using Python to streamline data pipelines for the logging service.

Impact:

Significantly improved data reliability and observability for enterprise clients.

PythonAirbyteData EngineeringETL

Get In Touch

I'm always open to discussing new projects, creative ideas, or opportunities to be part of your visions.

Remote · Pakistan