Available to hire
Hi, I’m Saisuthan Rajakaruna, a WordPress developer with over seven years of hands-on experience building custom themes, plugins, and content structures for SMEs and enterprise clients. I specialize in custom WordPress theme and plugin development, with strong proficiency in PHP, HTML5, CSS3, JavaScript, and MySQL, and deep expertise in WordPress architecture, performance optimization, and security.
I collaborate with UI/UX designers and project managers to deliver scalable, high-performance websites. I actively monitor Core Web Vitals, optimize database queries, and maintain secure production environments, ensuring reliable, fast experiences for users.
Skills
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Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Language
English
Fluent
Work Experience
Freelance WordPress Developer at Devaka Perera – Remote (Sri Lanka)
January 1, 2018 - PresentDeveloped and maintained over 100 WordPress websites across finance, retail, and education sectors. Customized themes and plugins, ensured responsive design and optimized site performance. Managed web hosting, domain configurations, cPanel setups, and backups. Integrated SEO and Google Analytics for performance tracking. Provided ongoing client support and security audits for WordPress installations.
Freelance WordPress Developer at Devaka Perera
January 1, 2018 - PresentDeveloped and maintained 100+ WordPress websites for clients in finance, retail, and education. Customized themes and plugins, implemented responsive design, and optimized site performance. Managed website hosting, domain configurations, cPanel setups, and backups. Integrated SEO best practices and Google Analytics for performance tracking. Provided ongoing client support and conducted security audits for WordPress installations.
Freelance WordPress Developer at Devaka Perera
January 1, 2018 - PresentDeveloped and maintained 100+ WordPress websites for clients in finance, retail, and education. Customized themes and plugins, implemented responsive design, and optimized site performance. Managed website hosting, domain configurations, cPanel setups, and backups. Integrated SEO best practices and Google Analytics for performance tracking. Provided ongoing client support and conducted security audits for WordPress installations.
WordPress Developer at Self-employed / Freelance
January 1, 2018 - PresentDelivered 100+ WordPress projects for SMEs and enterprise-level clients across finance, retail, and education sectors. Key contributions include custom theme and plugin development, advanced custom post types and taxonomies, REST API integrations, scalable architecture, performance optimization, Core Web Vitals monitoring, security patching, and hosting management via cPanel/WHM.
Education
BSc (Hons) in Software Engineering at University of Plymouth, United Kingdom
January 1, 2016 - January 1, 2016BSc (Hons) in Software Engineering at University of Plymouth, United Kingdom
January 11, 2030 - January 1, 2016BSc (Hons) in Software Engineering at University of Plymouth
January 11, 2030 - January 1, 2016BSc (Hons) in Software Engineering at University of Plymouth
January 11, 2030 - December 19, 2025BSc (Hons) in Software Engineering at University of Plymouth, UK
January 11, 2030 - January 1, 2016Qualifications
Cybersecurity Certification – National University of Singapore
January 11, 2030 - August 21, 2025Certified in Cybersecurity – ISC2
January 11, 2030 - August 21, 2025Junior Cybersecurity Analyst – Cisco
January 11, 2030 - August 21, 2025Cybersecurity Certification – National University of Singapore
January 11, 2030 - September 14, 2025Certified in Cybersecurity – ISC2
January 11, 2030 - September 14, 2025Junior Cybersecurity Analyst – Cisco
January 11, 2030 - September 14, 2025Currently pursuing Practical Ethical Hacking - Cisco
January 11, 2030 - September 14, 2025Cybersecurity Certification
January 11, 2030 - September 14, 2025Certified in Cybersecurity
January 11, 2030 - September 14, 2025Junior Cybersecurity Analyst
January 11, 2030 - September 14, 2025Practical Ethical Hacking - Cisco
January 11, 2030 - September 14, 2025Tata Cybersecurity Security Analyst Job Simulation
June 1, 2024 - December 19, 2025Clifford Chance Cyber Security Global Job Simulation
June 1, 2024 - December 19, 2025Mastercard Cybersecurity Virtual Experience Program
April 1, 2024 - December 19, 2025Deloitte Australia Cyber Job Simulation
August 1, 2025 - December 19, 2025Cybersecurity Certification – National University of Singapore
January 11, 2030 - December 19, 2025Certified in Cybersecurity – ISC2
January 11, 2030 - December 19, 2025Junior Cybersecurity Analyst – Cisco
January 11, 2030 - December 19, 2025Industry Experience
Financial Services, Retail, Education, Software & Internet, Professional Services
Skills
See more
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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