Research Group Co-Chair

• Mar 2023 - Present

Assistant Director

• Aug 2022 - Present

Senior Engineer (Infotech and Digital Transformation Department)

• Jan 2020 - Aug 2022

Developed and implemented a Boardwide Video Masterplan for centralisation of Video Feeds and Video Analytics for various operational use cases. Established Boardwide Video Analytics guidelines for the adoption of advanced analytics in PUBArchitected an agency wide Sensor and Data Adequacy Framework to maximise data and achieve cost efficiencies in PUB's operations. Managed IIoT Projects aligned to Smart Nation Initiatives under the Smart Operations DivisionEngaged of Industry Partners & Solution Providers in architecture and deployment of IoT PoCs and ProjectsArchitect, Design and Review of IoT Solutions [Sensors/End Points, RTU/Gateways (Inclusive of Edge/Fog Computing, where applicable), Data Standards/Protocols, Connectivity, Cloud Hosting, Integration to PUB Systems & IoT Platform, End User Application]Implementation of IT and IoT Security Features in IoT ProjectsCollaboration with inter-government agencies such as GovTech in establishing Business Use Cases and developing solutions Show less

Senior Engineer (Water Quality Department)

• Oct 2018 - Jan 2020

Conducted scenario and impact analysis using 3D water quality modelling tools for Singapore’s reservoirs and provided advisories to senior management on water transfer operations.Managed and implemented a procurement workflow for a real-time water quality monitoring system Developed new catchment and reservoir water quality models for Singapore Conducted studies to estimate catchment loads and determine pollution hot spots in Singapore catchments.Assessed the impacts on water quality of installation of solar panels in reservoirs Part of a team to develop a model to assess the tipping point between turbid and clear water states in tropical reservoirs using the PCLake model.Project team member for an R&D project to development of a coastal water quality model for waters around Singapore.Inter-agency team member for collaborative work on seawater quality related topics Show less

Senior Engineer (Catchment & Waterways Department)

• Apr 2018 - Oct 2018

Developed and operationalised the Catchment & Waterways Operations System (CWOS) - a real-time flood management and water quality modelling dashboard for operators to anticipate flooding and water quality issues. Implemented a Smart Water Assessment Network (SWAN) robotic system in reservoirs for autonomous and real-time water quality monitoring.Operationalised an Autonomous Underwater Vehicle for reservoir bathymetry data collectionConducted scenario and impact analysis using 3D water quality modelling tools for Singapore’s reservoirs and provided advisories to senior management on water transfer operations.Conducted studies to estimate catchment loads and determine pollution hot spots in Singapore catchments.Comprehensive monitoring & analysis of catchment and reservoir water qualityCarry out numerical hydrodynamic and ecological modelling assessments of water quality to study the future impacts to treatment operations.Carry out R&D studies to develop and implement innovative water treatment solutions Show less

Engineer

• Nov 2013 - Mar 2018

Research Engineer

• Aug 2009 - Nov 2013

Gained exposure to field and laboratory research. Learnt deployment, handling and maintenance of field instruments and sampling techniques. Learnt water quality analysis techniques and the use of instruments like Flow Injection Analyzer for the analysis of nutrients, the LCMS and Ion Chromatography (IC). Gained exposure to field and laboratory research. Learnt deployment, handling and maintenance of field instruments and sampling techniques. Learnt water quality analysis techniques and the use of instruments like Flow Injection Analyzer for the analysis of nutrients, the LCMS and Ion Chromatography (IC).

Part-time Undergraduate Research Intern

• Jun 2008 - Dec 2008

As a Part-time undergraduate researcher, I was involved in various projects under the Singapore-Delft Water Alliance in NUS. It was required of me to assist othersenior researchers in their research goals. I was involved in the roof-top garden project as a tool for storing and slowing down roof top runoff in order to harness the immense rainwater resource. I was also involved in the project for removal of pollutants through the use of various biosorbents. This project resulted in one journal paper (2008) and one paper successfully published in the ninth International Conference on Chemical & Process Engineering – Rome, Italy (2011). Show less

Intern

• Jan 2007 - Jun 2007

The internship at the Singapore Refining Company (SRC) required the reporting of air pollution data on a daily basis and the monitoring of the in-situ waste water treatment plant located on site. It also involved the regular laboratory testing of the water quality for BOD, COD, phenol and the other pollutants emanating from the refinery. The internship at the Singapore Refining Company (SRC) required the reporting of air pollution data on a daily basis and the monitoring of the in-situ waste water treatment plant located on site. It also involved the regular laboratory testing of the water quality for BOD, COD, phenol and the other pollutants emanating from the refinery.

Student Intern

• May 2006 - Jul 2006