Nadith Premaratne

Highlights & Responsibilities

• Lead Singapore BE team in transforming Google Fiber's legacy architecture into a scalable, flexible microservices framework.
• Design and develop clean, efficient, maintainable code to implement new features, enhancements, and bug fixes for Google Fiber's customer-facing applications, backend systems, and network management tools.
• Conduct in-depth code reviews in Java and Kotlin, ensuring code quality and adherence to best practices.
• Work closely with cross-functional teams and other stakeholders to understand requirements, propose solutions, and deliver high-quality software products.
• Provide guidance, mentorship, and technical leadership to junior & new engineers to help them grow their skills and contribute effectively to the Google Fiber project.
• Recognized for technical leadership, problem-solving skills, and product lifecycle management.
• Participate in agile development processes such as sprint planning, daily stand-ups, and retrospective meetings to ensure efficient collaboration and delivery of software increments.

Utilized Tools & Technologies: Java, Spring Framework, Kotlin, Angular, Harness CICD, Github, Contentful, Open API,  gRPCs, REST, JIRA, Guice/Stubby Framework, Google Apps & Tools framework,Boq Microservices

Highlights & Responsibilities

• Demonstrated a strong understanding of the Visa Checkout architecture, ensuring efficient integration and alignment with overall system design.
• Played a key role in redesigning the legacy system architecture to accommodate a mobile-as-an-identity approach, transitioning from the traditional email-based model.
• Actively contributed to the integration of new Identity Management APIs into the Visa Checkout platform, enhancing functionality and scalability.
• Gained hands-on experience in developing reactive, asynchronous, and non-blocking REST APIs, and effectively integrating them with other microservices and systems to ensure seamless communication.
• Proficient in performing comprehensive code reviews and enforcing code quality controls, version control best practices, as well as adhering to strict security and performance standards.
• Gained substantial experience in implementing and managing CI/CD pipelines using tools such as Git, Ansible, and Jenkins to automate deployment processes and improve operational efficiency.

Utilized Tools & Technologies: JSE, JEE, Spring, JPA, Hibernate, REST, JUnit, JSON, XML, Oracle, Hadoop, InteliJIDEA, Git, BitBucket, Jenkins, Rally, OpenShift, Ansible

Highlights & Responsibilities

• A key resource for the application architecture, development of PromptPay - PayNow Linkage Project which enables instant Bank transactions between Thailand and Singapore via Mobile Number.
• Experience in Code reviews, Code Quality controls, Version controls, security and performance standards.
• Performing Technical studies and proof of concept (POC) on building low latency real time payment system.
• Extensive experience in developing, testing, and deployment of the above projects from the scratch.
• Have an end-to-end understanding of the architecture of the FAST System and PayNow.
• Transactions flow optimizations & designed frameworks - Distributed Caching and Query Optimizations, Saga Distributed Transactions, Service Discovery & Service Registry, Finite State Automation in services to handle operational Status gracefully & automatically.
• Hand-on experience in developing High-Availability Clustering applications (Active-Active, Active-Passive) also supporting Consistency, Partitioning concepts.
• Experienced in DevOps, CI/CD, bitbucket, DevOps Tools (Ansible, Jenkins, Maven, Sonarqube, Docker).
• Knowledge of key security subjects (SSL/TLS, PKI, Certificates, HSM).
• A key resource for the Industry testing phase where stakeholders from Thailand and Singapore are partaking.

Utilized Tools & Technologies: JSE, JEE, Solace, Kafka, IBM MQ, Apache Ignite, Microservices, SOA, Spring Boot, Spring MVC, JPA, Hibernate, REST, JUnit, JSON,XML, AWS, Oracle, JIRA, Git, Ansible, Docker, Jenkins, Gradle, InteliJIDEA

Highlights & Responsibilities

• Designed and developed a load-balancing tool to distribute transactions (clearing updates, market data/reference data updates, and periodic events) among risk calculation processes to ensure equal workload distribution.
• Contributed to the development of an enterprise software solution for an electronic trading platform.
• Conducted bug fixing and issue resolution.
• Utilized Jira for efficient project management and task tracking.
• Performed Oracle database query optimization and integrated test suites for improved performance.

Utilized Tools & Technologies: Java (JSE/JEE), JPA, Hibernate, JUnit, Log4j, JSON, JDBC, Oracle PL/SQL, Git, Maven, IntelliJ IDEA, SQLite, C++, Windows, Linux, Visual Studio, Bamboo, JIRA