Lead Full Stack Engineer (Node.js, React)

Umair Ali

Lead Full Stack Engineer

***************@*****.*** +92-315-******* Karachi, Pakistan

Professional Summary

Highly accomplished Lead Full Stack Engineer with 6+ years of experience architecting, designing, and deploying enterprise-grade web applications and distributed systems using Node.js, Laravel, React.js, Next.js, Microservices, and RESTful API ecosystems. Deep expertise across Healthcare, E-Commerce, Travel, and SaaS sectors with a proven track record delivering secure API-driven platforms, high-volume data processing infrastructure, and scalable multi-tenant applications. Adept at translating complex business requirements into robust technical blueprints using Microservices, Repository Pattern, and Service-Oriented Architecture. Passionate about leading high-performing engineering teams, enforcing clean code practices, and driving full stack technical excellence.

Core Full Stack Competencies & Technical Expertise

● Backend Stack: Node.js, Laravel, ORM, Adonis.js, Nest.js, YII, CakePHP, Composer.

● Frontend: HTML5, CSS3, Bootstrap, React.js, Next.js, JavaScript (ES6+), Tailwind CSS, Inertia.js.

● Architecture: Microservices, Service-Oriented Architecture (SOA), Repository Pattern, Clean Architecture, Multi-Tenant SaaS, Modular Monolith, Serverless, Event-Driven.

● APIs & Integration: RESTful APIs, GraphQL, OAuth 2.0, JWT, Swagger, RabbitMQ, Queues, Webhooks, Third-Party API Integrations.

● Cloud & DevOps: AWS (EC2, RDS, S3), DigitalOcean, Nginx, CI/CD (GitHub Actions, Jenkins).

● Databases: MySQL, MongoDB, Redis, Supabase.

● Testing & Quality: Unit Testing, Code Audits, Architecture Reviews.

● Other Technologies: PHP, Python, C# (.NET), ReactNative, WebRTC, Socket.io.

● Practices & Tools: Agile / Scrum, Git, Jira, Postman, SOLID Principles. Professional Experience

Lead Full Stack Engineer — MarcelTech PVT LTD

● Architected and led end-to-end delivery of high-traffic web and mobile application ecosystems serving global fintech and enterprise clients.

● Designed and implemented scalable RESTful API platforms using Laravel, and Laravel Horizon for async queue-driven communication, improving system throughput by 40%.

● Applied Clean Architecture, DDD, and Repository Pattern across all greenfield Laravel projects, reducing technical debt and improving long-term maintainability.

● Directed DevOps strategy using Docker, Nginx, and CI/CD pipelines (GitHub Actions / Jenkins) on AWS and DigitalOcean, achieving 99.9% system uptime.

● Enforced rigorous code review and architecture audit processes, embedding SOLID principles, design patterns, and security best practices across all full stack services.

● Collaborated with C-suite stakeholders to translate business requirements into detailed technical architecture blueprints and delivery roadmaps.

● Mentored and scaled an engineering team of 10+, fostering a culture of technical ownership, innovation, and continuous improvement. SR. Full Stack Engineer — Al Rehman Technologies

● Architected and delivered scalable web and API solutions for international clients across SaaS and enterprise domains.

● Led end-to-end design and implementation of RESTful API ecosystems following Clean Architecture and SOLID principles, ensuring high maintainability and extensibility.

● Drove migration of monolithic legacy systems to modular Laravel-based service architectures, significantly improving deployment flexibility and system resilience.

● Managed and mentored a cross-functional development team, conducting architecture reviews, sprint planning, and code audits to enforce quality standards. SR. Full Stack Engineer — MarcelTech PVT LTD

● Led the modernization of legacy PHP codebases to Laravel modular architectures, improving scalability and deployment agility.

● Guided technology stack selection, MySQL and PostgreSQL performance tuning, and database query optimization, reducing average latency by 35% across enterprise modules.

SR. Full Stack Engineer — OKTOPUS LABS

● Designed a scalable, modular API-driven Laravel architecture for a major travel portal using DDD, Repository Pattern, and Service Layer principles.

● Engineered high-availability server infrastructure and MySQL database clustering on AWS, GCP, and DigitalOcean, ensuring 24/7 platform resilience.

● Delivered a comprehensive banking counter system and internal PHP / Laravel applications for a major financial institute, ensuring compliance with secure banking standards.

Software Engineer — Nytrotech PVT LTD

● Designed and developed scalable PHP / Laravel Web API solutions for enterprise clients, focusing on clean code practices, SOLID principles, and performance optimization.

● Built and maintained complex MySQL database schemas, stored procedures, and optimized queries to support high-volume transactional systems.

● Collaborated closely with business analysts and product owners to translate functional requirements into detailed technical specifications and working software. Software Engineer — Batoota PVT LTD

● Developed and maintained multiple web applications and API-driven systems using PHP, Laravel, and CodeIgniter.

● Built responsive front-end interfaces using Blade, Bootstrap, and JavaScript, and integrated RESTful APIs, improving application usability and performance across multiple client-facing products.

● Assisted in database design and optimization using MySQL and PostgreSQL, contributing to faster query execution and improved data integrity. Key Projects & Achievements

● Bask.Health Platform:

Engineered a SaaS patient treatment platform on Next.js with Prisma ORM backed by PlanetScale's serverless MySQL architected with tenant-aware data isolation, dynamic treatment plan management, provider-patient role separation, and a horizontally scalable schema designed for zero-downtime branching and iterative clinical feature delivery.

● Caretaker Profile Management System:

Built a dual-role platform connecting clients with caretakers powered by a Laravel backend with Passport-issued OAuth2 tokens enforcing role-based API access across client booking flows, caretaker profile management, availability scheduling, and appointment status tracking from request through completion.

● VLS APP:

Designed and delivered VLS, a React Native-powered YouTube group app that transforms solo video consumption into a shared social experience featuring group creation, synchronized playback control, playlist curation, and real-time member interaction from a single unified mobile interface.

● House Cleaning System:

Built a dual-interface service platform comprising a customer-facing booking engine and a vendor cleaner portal with Laravel powering multi-tenant role separation, slot availability management, geo-based vendor matching, and a full order lifecycle from booking through completion and review.

● ABL Water Tanker System:

Designed and developed a react native app.covering customer ordering, fleet dispatch, driver tracking, and delivery confirmation. replacing manual coordination with an automated, real-time operations layer built for scale.

● Batoota Travel Portal:

Designed and delivered a full-featured Laravel-based travel portal with a modular API-driven architecture, third-party booking integrations, and high-availability infrastructure on AWS.

Education & Certifications

● Web Development Diploma — Al-Fateem Academy, Karachi, Pakistan

● Intermediate in Computer Science

● Matriculation

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