National Water Supply and Drainage Board Vacancies 2026 (NWSDB) – Sri Lanka
The National Water Supply and Drainage Board (NWSDB) is one of Sri Lanka’s most important statutory institutions, functioning under the Ministry of Water Supply. It is responsible for the planning, design, construction, operation, and maintenance of water supply and sewerage systems across the country.
The NWSDB plays a critical role in ensuring safe drinking water, sanitation services, and sustainable water management for urban and rural communities throughout Sri Lanka.
About the National Water Supply and Drainage Board
The National Water Supply and Drainage Board was established to:
- Provide safe and adequate drinking water
- Develop and maintain sewerage and drainage systems
- Implement large-scale water supply projects
- Manage urban, rural, and plantation water schemes
- Support national development through water infrastructure
NWSDB operates through regional offices, project units, laboratories, and treatment plants located island-wide.
National Water Supply and Drainage Board Vacancies (General Overview)
Each year, the National Water Supply and Drainage Board Vacancies attract thousands of applicants due to:
- Government job security
- Attractive salary scales
- Pension / EPF & ETF benefits
- Opportunities to work on national and foreign-funded development projects
Available Vacancies :
- Quantity Surveyor
01. Quantity Surveyor
| Job Details | Download |
| Closing Date | 16-02-2026 |
Common Job Categories at NWSDB
Based on previous recruitments, NWSDB vacancies usually fall under the following categories:
🔹 Engineering & Professional Posts
- Civil Engineers
- Mechanical Engineers
- Electrical Engineers
- Chemical Engineers
- Environmental Officers
- Project Engineers
- Quantity Surveyors
🔹 Technical & Field Posts
- Technical Officers (Civil / Mechanical / Electrical)
- Laboratory Technicians
- Water Treatment Plant Operators
- Survey Assistants
- Draughtsmen
🔹 Administrative & Management Posts
- Administrative Officers
- Assistant Directors
- Management Assistants
- Finance Officers
- Internal Auditors
- Procurement Officers
🔹 ICT & Specialized Posts
- IT Officers
- System Analysts
- Network Administrators
- GIS Officers
- Data Entry Operators
🔹 Support & Skilled Staff
- Drivers
- Electricians
- Plumbers
- Mechanics
- Office Assistants
- Store Keepers
- Security Staff
📌 Exact posts, qualifications, and numbers vary depending on the Gazette notification.
Educational Qualifications (Post Dependent)
Applicants may be required to possess:
- Degree / Diploma / NVQ qualifications
- G.C.E. A/L or O/L
- Professional memberships (IESL, ICASL, etc.)
- Relevant post-qualifying experience
- Physical and mental fitness
- Willingness to work anywhere in Sri Lanka
Salary Scales & Benefits
Employees of NWSDB typically enjoy:
- Government-approved salary scales
- Cost of Living Allowance (COLA)
- Project and field allowances (post-wise)
- EPF / ETF or pension benefits
- Medical and welfare facilities
- Training and career development opportunities
- Long-term job stability
Selection Process
Recruitment generally includes:
- Application screening
- Written competitive examination (for selected posts)
- Structured interview
- Final appointment by NWSDB
⚠️ Canvassing in any form will result in disqualification.
How to Apply for National Water Supply and Drainage Board Jobs
Vacancy notices are officially published through:
- Sri Lanka Government Gazette
- NWSDB official website
- Ministry of Water Supply announcements
Applicants must:
- Follow the prescribed application format
- Submit applications before the closing date
- Apply through the Head of Institution if already employed in government service
📌 Always read the official Gazette notification carefully before applying.
Why Work at the National Water Supply and Drainage Board?
- Employment in a nationally vital public utility
- Contribution to public health and environmental sustainability
- Exposure to large-scale infrastructure projects
- Strong career progression in engineering, technical, and administrative fields
- Respected government service with long-term benefits
The National Water Supply and Drainage Board remains one of Sri Lanka’s most respected government institutions, offering stable and rewarding career opportunities for professionals, technicians, and skilled workers. Candidates interested in NWSDB vacancies should regularly monitor Gazette notifications and official announcements.
