POSITION SUMMARYReports to: Surveyor LeadThe Surveyor plays a critical role in the planning, design, and construction of tunnel and underground infrastructure associated with railway and transportation project. The primary responsibility is to carry out precise underground and surface surveys to support tunnel alignment, excavation, and permanent works construction.
The Surveyor utilizes advanced surveying techniques and instruments to ensure accuracy of tunnel geometry, control transfer, and deformation monitoring. The role requires close collaboration with engineers, designers, and construction teams to provide reliable survey data essential to safe and efficient tunneling operations.
The Surveyor's key responsibilities are:
- Conduct detailed surface and underground surveys for tunnels, shafts, portals, cross passages, and associated railway infrastructure
- Establish, maintain, and verify survey control networks, including transfer of alignment and levels from surface to underground
- Set out and check tunnel works including:
- Tunnel centerlines and profiles
- Excavation limits and breakthrough control
- Tunnel linings, inverts, slabs, and track bed elements
- Use total stations, gyroscopic systems, laser scanners, GPS (where applicable), and other specialized survey instruments to collect accurate data
- Perform as-built surveys and dimensional checks of excavated and completed tunnel works
- Monitor and report on tunnel convergence, deformation, settlement, and clearance compliance
- Analyze survey data to prepare maps, drawings, models, and reports for engineering and construction purposes
- Identify potential underground constraints, geological interfaces, and construction risks that may impact alignment or excavation
- Assist with tunnel alignment verification, grading, and construction layout development
- Ensure compliance with safety regulations, tunnel-specific procedures, and industry standards during surveying activities
- Collaborate with project managers, engineers, geotechnical teams, and contractors to resolve survey-related challenges
- Maintain and calibrate survey equipment and ensure adherence to quality control and assurance procedures.
EDUCATION AND QUALIFICATIONS- Bachelor's degree in Surveying, Civil Engineering, Geomatics, or a related field
- Minimum 7-10 years of surveying experience, preferably in tunneling, underground, or major infrastructure projects
- Professional licensure or certification as a surveyor preferred
- Demonstrated experience in construction surveying, ideally within tunnel, railway, or heavy civil environments.
JOB REQUIREMENTS- Proficiency in surveying instruments including:
- Total stations
- Laser scanners
- Gyroscopic or tunnel alignment systems
- Strong analytical and problem-solving skills with exceptional attention to detail
- Ability to work in underground and confined-space environments, including shift work when required
- Excellent communication and interpersonal skills for multidisciplinary coordination
- Ability to work independently and manage multiple survey activities simultaneously
- Proficiency in survey data processing and drafting software (e.g., AutoCAD, Civil 3D, GIS)
- Sound understanding of tunnel geometry, alignment, and construction tolerances
- Familiarity with tunnel safety regulations and best practices for underground surveying
- Proven track record of delivering accurate and high-quality survey outputs within active construction environments
- Experience working with diverse stakeholders and managing survey activities within strict project timelines
WORK ENVIRONMENT 
