Team ECOSOFTT is made up of management professionals and technical experts who are passionate and pragmatic. They support projects around the world from their bases in Singapore, Hong Kong, India and Chile. Profiles of the key team members are set out below:

Stanley Samuel, Founder

Stanley is the Chief Architect of our award-winning Water SMART Buildings  & Industries platform. He has extensive experience in water, wastewater and environmental management, including watershed management, rainwater harvesting, drinking water treatment, wastewater recycling and solid waste management over 70 projects internationally.

Stanley is passionate about addressing the global challenge of water scarcity, shortage and quality. He also works relentlessly on inclusive social development as the Founder of SAAMARTH Social Service Organisation, our social impact programme that empowers marginalised rural communities in India.

For his work, Stanley was recognised internationally as among the “50 Most Talented Leaders in Water Management” and named a Global Visionary by UBS.

Stanley is an Engineer by background, and holds a Bachelor’s degree in Commerce and Business Management. He earned a dual degree Executive MBA with INSEAD and Tsinghua University and a Diploma in Wastewater Treatment from the University of Chile.

Marcus Lim, Co-Founder & CEO

Marcus specialises in developing environmentally and economically sustainable water solutions. To that end, he works closely with research institutions, technology innovators, businesses, NGOs and public sector agencies to develop solutions relevant to local situations.

Marcus has experience in recycling systems in residential developments, hotels, schools and industries, and has led major water usage studies for PUB, Singapore’s National Water Agency.

A believer that we can do well while doing good, Marcus is passionate about bridging the gap between business and social needs to address our shared causes of water, wastewater and environmental management.

Marcus graduated with a BBA (Honours) degree from the National University of Singapore, and completed a dual degree Executive MBA with INSEAD and Tsinghua University. He obtained a Diploma in Wastewater Management from the University of Chile. Marcus is a holder of the Chartered Financial Analyst, Chartered Management Accountant (UK) and Chartered Global Management Accountant designations. He is a certified Water Efficiency Manager in Singapore.

Dr. Rama Mallampati, Senior Manager – Design & Innovation

Rama specialises in developing efficient solutions to address water and wastewater needs of clients and partners. He has 15 years of experience in design of water and wastewater treatment and recycling systems in a wide range of industries, including food manufacturing, microelectronics, textiles and pharma.

He previously worked a Lead Process Engineer, Customer Application Engineering with Suez/GE Water and Manager with TÜV SÜD where he provided technical expertise to increase efficiency, reduce risk, and improve reliability of water systems.

Rama holds BSc, MSc degrees. He earned his PhD (Chemistry) from the National University of Singapore and is a Project Management Professional.

Kelvin Lu, Design & Innovation Manager

Kelvin has 15 years of experience in water treatment process engineering and implementation in Singapore, SE Asia and China. In particular, he has considerable experience in designing treatment systems for de-ionised water, sewage and wastewater from industrial sectors such as food, chemical, semiconductor and pharmaceuticals. A selection of his notable projects include:

  • 100m3/h De-Iionised Water System and 40m3/h Wastewater Reclaim System for Philips Lumileds
  • 1,000 kg/h Pure Steam Generator System for Baxter Bioscience
  • 200,000m3/d Water Treatment Plant, 48,000m3/day Demin Water Plant and 160,000m3/d Wastewater Treatment Plant for Asia Pulp and Paper

Prior to joining ECOSOFTT, Kelvin worked with several water solutions providers, including Mann+Hummel Filter Technology and Century Water. Kelvin graduated with BSc (Applied Chemistry) from Wuhan University and MEng (Chemical) from the National University Of Singapore.

Alan Lau, Project Manager

Alan is a water efficiency manager and water technology engineer with 15 years of experience in water audit, technical advisory and water treatment/recycling projects. He has deep knowledge in various water treatment technologies and processes especially physicochemical (DAF, coagulation, flocculation) and membrane (UF, RO) processes.

Alan previously worked with TUV SUD and DHI, where he provided water audit and technical advisory services to industrial and commercial clients. He also worked as a Research Engineer and Project Manager with NEWRI, Siemens/Evoqua and Hyflux. 

Alan graduated with Bachelor of Engineering (Chemical Engineering) from Curtin University of Technology and Master of Engineering (Engineering & Technology management) from University of South Australia. He is a certified Project Management Professional (PMP®) and GRI Standards Certified Training / Certified Sustainability Reporting Specialist (CSRS). He is a certified Water Efficiency Manager in Singapore.

Loh Sook Han, Head of Procurement and Supply Chain

Sook Han brings over 30 years’ experience in water and wastewater treatment process engineering, cost estimation, technical consultancy, procurement and supply chain management and contracts management.

She has extensive experience with the set-up and implementation of international procurement procedural compliance & documentation, strategic purchasing, contract negotiations, commercial & contractual aspects of engineering projects across project disciplines including civil & structural, mechanical, electrical, building services and logistics.

Sook Han was formerly Head of Procurement for HSL Constructor where she set up the company’s project procurement department. She was also Process Applications Manager and  Procurement Director, South East Asia with Veolia.

Sook Han graduated with BEng (Chemical) from the National University of Singapore and and MEngSc (Water Engineering) from the National University of Ireland (University College Dublin).


Raghu Vishwakarma, Project Engineer

Raghu is an Engineer with our operations in the Central India region from his base in Jabalpur. Since joining ECOSOFTT 5 years ago, Raghu has taken on responsibilities in the design and implementation of a wide range of projects, including Drinking Water Treatment, Wastewater Recovery, Rivers & Lakes Conservation and Rural Water & Sanitation Transformation. He is well versed with CAD drawings, estimation, project management and a range of conventional and advanced technologies.

Raghu has worked across India and contributed to projects in Hong Kong and Vietnam. Raghu graduated with BEng (Civil) from St Aloysius Institute of Technology.


Raul Fernandez, Engineering Specialist

Raul is a specialist in ECOSOFTT’s Aerobic Biofilter Without Sludge (Mizuchi) wastewater treatment technology. He is a preeminent expert in bio-filtration wastewater treatment technology and has successfully completed the design of more than 90 waste water treatments plants and participated in the design of another 100 internationally.

Raul is the former Chief Engineer, Wastewater Treatment with the University of Chile’s Foundation for Technology Transfer. He qualified as a Professional Civil Engineer from the University of Diego Portales. He obtained his Masters in Environmental Engineering in Waste Treatment from the University of Santiago, Chile and Diploma in Water Pollution Control from the University of Chile. He is an Adjunct Professor at the University of Andrés Bello.


Julio Gonzalez, Engineering Specialist

Julio is a specialist in wastewater treatment technologies. He brings extensive experience in wastewater treatment systems based on the bio-filtration technology, having participating in more than 110 projects in across several countries. His expertise includes the design, construction, maintenance and environmental impact assessment for such projects.

Julio was Chief Project Engineer with the University of Chile’s Foundation for Technology Transfer. He qualified as an Environmental Engineer from Duoc Catholic University. He earned a Diploma in Reverse Osmosis Water Treatment and a Diploma in Water Pollution Control from the University of Chile.


Zhang Houguo, Technical Advisor

Houguo is an award-winning inventor, research scientist and entrepreneur. In his 35-year career, he has also held the senior positions in manufacturing, commercial management and government. Since 2000, Houguo has been researching and developing a series of water and wastewater treatment technologies based on the principles of conservation, efficiency and chemical-free treatment. His work has received multiple awards in technology competitions, including a national level award for the design of the “Zero Discharge Home”.

Houguo is the Founder of of Hwaye Environmental Co. Ltd, a company based in China dedicated to the development and promotion of water treatment and recycling solutions. He is also Director of the Shanghai Water Pollution Control Research Institute. Houguo completed his university studies in Engineering and is a Senior Engineer in China, the country’s highest accreditation in Engineering.