I am an accomplished Senior WordPress Developer with extensive experience in engineering, optimizing, and maintaining large-scale, high-traffic WordPress platforms in enterprise settings. I specialize in custom theme development, sophisticated API integrations, and delivering solutions that emphasize both performance and maintainability. I thrive in Agile teams and enjoy collaborating across functions to achieve secure and maintainable code. I have hands-on experience with web architecture, microservices, and responsive front-end development, particularly with React and JavaScript. Continuously improving my skills and mentoring others are key parts of my professional approach, and I value pragmatic solutions and attention to detail in all the projects I work on.

Haseeb Mustafa

I am an accomplished Senior WordPress Developer with extensive experience in engineering, optimizing, and maintaining large-scale, high-traffic WordPress platforms in enterprise settings. I specialize in custom theme development, sophisticated API integrations, and delivering solutions that emphasize both performance and maintainability. I thrive in Agile teams and enjoy collaborating across functions to achieve secure and maintainable code. I have hands-on experience with web architecture, microservices, and responsive front-end development, particularly with React and JavaScript. Continuously improving my skills and mentoring others are key parts of my professional approach, and I value pragmatic solutions and attention to detail in all the projects I work on.

Available to hire

I am an accomplished Senior WordPress Developer with extensive experience in engineering, optimizing, and maintaining large-scale, high-traffic WordPress platforms in enterprise settings. I specialize in custom theme development, sophisticated API integrations, and delivering solutions that emphasize both performance and maintainability. I thrive in Agile teams and enjoy collaborating across functions to achieve secure and maintainable code.

I have hands-on experience with web architecture, microservices, and responsive front-end development, particularly with React and JavaScript. Continuously improving my skills and mentoring others are key parts of my professional approach, and I value pragmatic solutions and attention to detail in all the projects I work on.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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Language

English
Fluent
Urdu
Fluent
Panjabi, Punjabi
Fluent

Work Experience

FC Associate (Loading PG/Top Loader & Ship Clerk) at Amazon Fulfillment Center, UK
December 1, 2023 - Present
Perform hands-on warehouse tasks including loading, package sorting, and parcel management in a fast-paced logistics environment. Operate PG/Top Loader machinery for optimal container loading, ensuring safe and secure movement of goods. Serve as Ship Clerk, maintaining accurate shipment documentation and supporting inventory updates. Collaborate with team members to meet targets and uphold quality standards. Strictly follow health and safety protocols in all dock and shipping operations.
Senior PHP Developer at Exchange Tech Ltd, Middlesbrough, UK
November 30, 2023 - July 20, 2025
Led and mentored a cross-functional development team, upholding high programming and project delivery standards. Architected and implemented custom, high-availability PHP/WordPress solutions and modular plugin designs. Oversaw server infrastructure on AWS and VPS; configured NGINX/Apache, SSL, DNS, and security protocols. Designed and integrated REST APIs; implemented and optimized scalable plugin architectures. Managed safe data migrations, ensuring data integrity and normalization. Implemented Redis caching and optimized queries across PostgreSQL/MySQL for high-performance delivery. Integrated and configured SOLR search engine (basic), building faceted search interfaces. Developed CI/CD pipelines and comprehensive Git workflows, improving deployment efficiency. Key achievements include reducing database query time by 40%, migrating 50,000+ records with no data loss, and achieving near-100% Lighthouse performance scores.
Software Engineer (PHP/WordPress) at OSO Softwares (Computan), Lahore, Pakistan
February 28, 2022 - July 20, 2025
Developed custom WordPress solutions with ACF and CPTs for complex content workflows. Built integrations with Google Search APIs, PayPal, and CRMs. Enhanced database performance through table restructuring and advanced caching. Supported CI workflows, error monitoring, and site backup systems. Delivered performance-tuned responsive UIs using React and Bootstrap.
Lead WordPress/PHP Developer at TS Partners (UK), Lahore, Pakistan
December 31, 2020 - July 20, 2025
Directed full-cycle WordPress builds from requirements to deployment. Engineered multilingual WooCommerce solutions and developed custom payment and Stripe API integrations. Mentored junior developers in Git, secure coding, and PHP standards.
Web Developer (PHP/WordPress) at Fixthis.pk, Lahore, Pakistan
December 31, 2019 - July 20, 2025
Created membership platforms with BuddyPress/MemberPress and integrated diverse third-party services. Built multilingual eCommerce sites using WPML, PayPal, and Stripe. Monitored uptime and handled advanced debugging.
FC Associate (Loading PG/Top Loader & Ship Clerk) at Amazon Fulfillment Center, UK
December 1, 2023 - Present
Perform hands-on warehouse tasks including loading, package sorting, and parcel management in a fast-paced logistics environment. Operate PG/Top Loader machinery for optimal container loading, ensuring safe and secure movement of goods. Serve as Ship Clerk, maintaining accurate shipment documentation and supporting inventory updates. Collaborate with team members to meet targets and uphold quality standards. Strictly follow health and safety protocols in all dock and shipping operations.
Senior PHP Developer at Exchange Tech Ltd, Middlesbrough, UK
November 30, 2023 - July 20, 2025
Led and mentored a cross-functional development team, upholding high programming and project delivery standards. Architected and implemented custom, high-availability PHP/WordPress solutions and modular plugin designs. Oversaw server infrastructure on AWS and VPS; configured NGINX/Apache, SSL, DNS, and security protocols. Designed and integrated REST APIs; implemented and optimized scalable plugin architectures. Managed safe data migrations, ensuring data integrity and normalization. Implemented Redis caching and optimized queries across PostgreSQL/MySQL for high-performance delivery. Integrated and configured SOLR search engine (basic), building faceted search interfaces. Developed CI/CD pipelines and comprehensive Git workflows, improving deployment efficiency. Key achievements include reducing database query time by 40% through SQL and Redis optimizations, migrating over 50,000 records to a new service-oriented architecture without data loss, and achieving near-100% Lighthouse perfo
Software Engineer (PHP/WordPress) at OSO Softwares (Computan), Lahore, Pakistan
February 28, 2022 - July 20, 2025
Developed custom WordPress solutions with ACF and CPTs for complex content workflows. Built integrations with Google Search APIs, PayPal, and CRMs. Enhanced database performance through table restructuring and advanced caching. Supported CI workflows, error monitoring, and site backup systems. Delivered performance-tuned responsive UIs using React and Bootstrap.
Lead WordPress/PHP Developer at TS Partners (UK), Lahore, Pakistan
December 31, 2020 - July 20, 2025
Directed full-cycle WordPress builds from requirements to deployment. Engineered multilingual WooCommerce solutions and developed custom payment and Stripe API integrations. Mentored junior developers in Git, secure coding, and PHP standards.
Web Developer (PHP/WordPress) at Fixthis.pk, Lahore, Pakistan
December 31, 2019 - July 20, 2025
Created membership platforms with BuddyPress/MemberPress and integrated diverse third-party services. Built multilingual eCommerce sites using WPML, PayPal, and Stripe. Monitored uptime and handled advanced debugging.
Senior WordPress/PHP Developer at Exchange Tech Ltd
November 30, 2023 - July 20, 2025
Led the full development lifecycle for enterprise-level, high-traffic WordPress solutions, focusing on back-end architecture and performance-driven front-ends. Designed and maintained large-scale custom themes, shared plugins, and custom Gutenberg blocks. Implemented scalable API endpoints and integrated external data sources improving site interoperability. Improved Core Web Vitals, optimized SQL queries, and introduced caching strategies. Built front-end components with React and vanilla JS, ensuring accessibility compliance. Handled troubleshooting of technical issues and managed release cycles. Established Git workflows and contributed to documentation and code reviews. Collaborated closely with project managers and designers to deliver secure, maintainable code. Gained exposure to WordPress VIP standards, AWS services, and cloud deployments. Mentored junior developers and led multi-person Agile sprints.
Software Engineer (WordPress/PHP) at OSO Softwares (Computan)
February 28, 2022 - July 20, 2025
Engineered custom Gutenberg blocks, dynamic content APIs, and site features for media-heavy and content-driven projects. Integrated third-party APIs to improve workflow automation and service connectivity. Ensured code met accessibility, responsiveness, and SEO standards, emphasizing plugin maintainability. Participated in Agile ceremonies and managed workload using Jira in a remote distributed team.
Lead WordPress/PHP Web Developer at TS Partners (UK)
December 31, 2020 - July 20, 2025
Guided development of complex WordPress and WooCommerce sites focusing on scalable architectures and payment service integrations. Created modular plugins and custom RSS feeds supporting cross-system communication via RESTful APIs. Oversaw version control workflows, mentored developers, and ensured delivery to high coding standards.
WordPress Developer / Web Developer at Fixthis.pk
December 31, 2019 - July 20, 2025
Developed bespoke themes, plugins, multilingual e-commerce and membership solutions using WordPress, BuddyPress, and MemberPress. Implemented custom post types, JSON endpoints, and interactive UI components with JavaScript and React. Maintained projects through quality assurance, code reviews, and process improvement.
FC Associate at Amazon Fulfillment Center
December 1, 2023 - Present
Supported operational workflows through loading, package sorting, and inventory documentation in a high-paced logistics environment.

Education

BS (Hons) Information Technology at Bahauddin Zakariya University, Multan, Pakistan
January 1, 2013 - December 31, 2017
BS (Hons) Information Technology at Bahauddin Zakariya University
January 1, 2013 - December 31, 2017
BS (Hons) Information Technology at Bahauddin Zakariya University
January 1, 2013 - December 31, 2017

Qualifications

Microsoft Office Specialist: Word 2013
January 11, 2030 - July 20, 2025
Microsoft Office Specialist: Word 2013
January 11, 2030 - July 20, 2025

Industry Experience

Software & Internet, Retail, Transportation & Logistics, Professional Services, Media & Entertainment