Khubaib Khan

Senior Backend Developer with 6+ years building high-performance, production-grade systems, including 3+ years of hands-on Python for automation, data pipelines, and REST APIs. Strong background in PHP/Laravel (LAMP/LEMP), PostgreSQL/MySQL, and Linux server management. Proven track record designing scalable architecture from scratch, optimizing live production environments, and delivering data-heavy applications serving 100,000+ users.

Experienced mentoring junior developers, cross-timezone remote collaboration, and rigorous technical documentation. Actively exploring AI/ML integration into production systems.

Senior Backend Developer (Python + PHP/Laravel) - Innovo Technologies - Rawalpindi, Pakistan — Remote, US & KSA clients

(2022-10)

• Designed and built Python-based automation and data processing pipelines for multiple client projects, including scheduled crawlers, data transformation scripts, and report generation tools — reducing manual effort by 40%
• Developed large-scale data ingestion systems using Python (Requests, BeautifulSoup, asyncio), handling high-volume structured and unstructured data with error recovery and logging
• Architected and deployed 15+ backend systems using PHP/Laravel on Linux (LEMP stack), serving 100,000+ users with 99.9% uptime — owned production server management and incident response
• Built Tyche Marketplace (Node.js + MongoDB) handling 1M+ API requests daily — designed backend architecture, API layer, and subscription-based ranking algorithms from scratch
• Engineered XE-Billing backend (Laravel + MySQL) processing $2M+ monthly transactions with recursive payment logic, subscription lifecycle management, and audit-grade financial reporting
• Implemented Redis caching and PostgreSQL/MySQL query optimization, achieving 60% reduction in page load times and 45% decrease in infrastructure costs
• Managed live Linux production environments including Nginx configuration, process monitoring, cron scheduling, and deployment pipelines
• Developed real-time backend features using WebSockets and Pusher integrated with Vue.js frontends, improving user engagement by 30%
• Achieved 85% automated test coverage (PHPUnit + Laravel Dusk), reducing production bugs by 65%
• Mentored junior developers through code reviews, pair programming, and documentation — improving team code quality by 35%
• Collaborated asynchronously with US-based and Saudi clients across time zones, consistently delivering within sprint commitments

Backend Developer (PHP/Laravel + Python) - Webdecent Technologies - Rawalpindi, Pakistan

(2018-12 - 2022-08)

• Built and maintained 10+ backend systems for clients in e-commerce, healthcare, and education — full ownership from schema design to deployment on Linux servers
• Wrote Python scripts for data extraction, transformation, and automated reporting integrated with Laravel backends
• Designed MySQL database schemas for high-traffic applications with indexing strategies reducing query execution time by 50%
• Delivered RESTful APIs consumed by mobile apps and third-party services — implemented OAuth and JWT authentication from scratch
• Integrated Stripe and PayPal payment gateways for international e-commerce clients
• Built custom CMS platforms with PHP and SQL, including workflow management and admin panels
• Participated in Agile sprints, sprint planning, and daily stand-ups; consistently met delivery commitments

Bachelor of Science - Information Technology (BSIT) - University of Engineering and Technology (UET), Taxila (2014 - 2018)