Tech Lead (PHP) at Gerritsen Group (2025-08 – Present)
- Lead a cross-functional engineering team, reporting directly to executive leadership (COO).
- Architected and delivered a direct customer order API, eliminating manual workflows and reducing dependency on third-party tools.
- Spearheaded eCMR digital integration with government-licensed entities, strengthening compliance and operational efficiency.
- Designed a scalable financial data interface to enable PowerBI-based executive reporting and business insights.
- Established development governance standards including scope control, timeline enforcement, documentation discipline, and approval workflows.
- Reduced operational bottlenecks by automating core processes and aligning technology initiatives with business objectives.
Senior Consultant Development - Contract at Systems Limited (2025-06 – 2025-08)
Project: CelcomDigi – Malaysian telecom provider.
- Designed and implemented an automated billing and batch billing system for CelcomDigi (Malaysia), improving billing efficiency and reliability.
- Architected asynchronous processing using Laravel Queues and Workers to handle high-volume billing operations.
- Optimized batch execution workflows to ensure scalability and minimize system load during peak processing.
- Improved billing accuracy and reduced manual intervention through automation-first design.
- Collaborated with cross-functional teams to align billing logic with business and operational requirements.
Senior Software Developer at Contour Software (2021-10 – 2024-10)
- Project: Z57 - US-based real estate marketing tool. Backend development for z57, using PHP custom framework and wordpress.
- Led end to end project towards upgrading datasources for complete application intended to reduce cost by 62%.
- Developed facebook/meta ad services using meta marketing APIs.
- Integrated google analytics GA4 to provide insights along with admin backoffice reporting.
- Project: Zurple - US-based real estate lead generation system. Developing the backend of Zurple, using PHP frameworks such as Laravel and Zend.
- Led end-to-end efforts to upgrade PHP and Zend to more stable versions, resulting in improved support and increased performance of the product by around 40% from 665ms to 424ms.
- Created 20+ Rest APIs to facilitate seamless integration with social platforms.
- Integrated Pendo analytics and Google Analytics to provide insights into what modules had to be improved, increasing user satisfaction.
- Conducted thorough unit testing with a code coverage of 80% using PHP.
Senior Executive Software Engineer at Upgenics International (2021-05 – 2021-09)
Project: PhoneCheck - California-based smartphone diagnostic tool with over 15K test stations across 32 countries.
- Constantly maintained app performance issues due to the high volume of database transactions.
- Integrated with over 6 different APIs and Services from major smartphone providers such as Apple, ensuring accurate device lock verification and delivering effective results and cost estimations.
- Built and implemented stored procedures and triggers to optimize database operations from a couple of minutes to 12 milliseconds.
- Developed 10+ Rest APIs to facilitate seamless communication between desktop applications and PhoneCheck.
Computer Programmer at Packages Limited (2018-03 – 2021-04)
Project: People Performance Process - In-house performance evaluation/management system for employees.
- Developed a comprehensive automated performance management system using PHP Core and Laravel.
- Developed 25+ Rest APIs for linkage between web and mobile applications. Worked on one click payroll module which reduced payroll disbursement time from 3 days to 1 day.
- Developed IoT-based solution to provide not only production data but also machine downtime data resulting in preliminary actions for better productivity and minimizing downtimes by 37% using PHP Laravel, JavaScript, C# and MySQL.
- Implemented a MySQL stored procedure to detect and delete identical rows from the database to avoid useless memory consumption resulting in 47% saved storage.
Programmer at Autosoft Dynamics (2016-08 – 2018-02)
Project: Autobanker II - end-to-end banking solution, being used by 10+ banks and financial institutes globally. Developed core modules for a banking application, contributing to the enhancement and functionality of critical features. Developed card management modules and Microservices using PHP.
