• Achieved RHCSA (Red Hat Certified System Administrator) and RHCE (Red Hat Certified Engineer)certifications, demonstrating proficiency in advanced Linux system administration tasks.• Experienced in OpenShift GitOps workflows, utilising Argo CD for seamless deployment and configurationmanagement within Red Hat environments.

• Developed remittance services for Binance Pay to enable users to send cash through cryptocurrency, resulting in the successful launch to 8 new countries.• Integrated applications with various payment gateways, facilitating over 1,000 daily transactions.• Developed a monitoring service using Grafana dashboards for developers to track API usage and latencies.• Enhanced API response time by 30% through the implementation of effective caching strategies utilising in-memory caching and distributed caching systems.• Developed an email notification system using Kafka to alert users when cash withdrawals exceeded a defined threshold amount.

• Collaborated with key stakeholders, including Municipal Services Office, to design and implement an AI chatbot that efficiently directed residents' feedback on municipal issues to the appropriate government agencies, enhancing communication and response times.• Expanded existing platform architecture to integrate with Telegram and Whatsapp messaging platforms, broadening communication channels while maintaining stringent security measures with encryption and hashing algorithms to safeguard user messages effectively.• Created automated scripts for compiling CSAT surveys, driving a 20% enhancement in user experience metrics.• Designed and implemented an error monitoring pipeline that increased error detection rates by 30%, while also integrating Slack alerts to notify engineers promptly, enabling timely bug resolution and enhancing system stability.

• Architected and deployed a scalable backend web application service with Node.js and Express, leveraging AWS services including DynamoDB for database management resulting in a 30% increase in data retrieval efficiency. • Successfully handled schema transformation and migration of data from Firebase to DynamoDB.• Developed a new geocoding framework to facilitate user connections in Singapore.• Achieved 50% decrease in load times through the implementation of Haversine formula algorithm to calculate user locations.

• Worked closely with clients to support development of products through requirements definition, technical design, programming and acceptance testing.• Developed user-facing features to enhance user experience.• Incorporated application-specific attributes using Express framework (Node.js) with object-oriented methods.• Implemented database design and optimised software for speed and scalability.

• Involved in numerous projects with clients such as National Gallery Singapore to design web frameworks and RESTful API with database management.• Programmed client-server models, handled authentication and authorisation with OAuth and OIDC.• Played significant role in establishing operational processes for developing client products.