Offshore Drilling Rig / Barge Positioning Surveyor

About the role

Mannai in Qatar is looking for an experienced Offshore Drilling Rig / Barge Positioning Surveyor to manage offshore positioning and navigation survey activities for drilling rigs, jack-up rigs and marine barges. The role ensures accurate vessel positioning, safe rig moves and compliance with project specifications, marine safety standards and client requirements.

Key responsibilities

• Conduct offshore positioning surveys for drilling rigs, jack-up rigs, barges and marine vessels.
• Plan and execute rig moves, barge positioning and offshore navigation survey activities.
• Operate and maintain DGPS/GNSS, gyrocompass, motion sensors, acoustic positioning systems and other survey equipment.
• Perform positioning checks, equipment calibration and quality control of survey data.
• Support anchor handling, mooring operations and jack-up rig positioning as required.
• Coordinate with rig masters, marine crews, offshore installation managers and client representatives.
• Monitor vessel movements, positioning accuracy and operational safety.
• Prepare survey reports, positioning records, as-built documentation and daily operational updates.
• Ensure compliance with offshore HSE procedures, client requirements and marine survey standards.

Required profile

• Minimum 5 years of relevant offshore survey experience, preferably 5-10+ years, with direct involvement in drilling rig moves or barge positioning.
• Diploma or Bachelor's degree in Hydrographic Surveying, Geomatics, Marine Engineering, Survey Engineering or a related technical discipline.
• Proven experience in offshore oil and gas operations, jack-up rig positioning, barge movements and marine construction support.
• Valid offshore safety certifications such as BOSIET/FOET and offshore medical fitness certification preferred; additional hydrographic survey qualifications are an advantage.

Required skills

• Strong understanding of offshore positioning techniques, coordinate systems, geodetic principles and marine navigation.
• Hands-on experience with DGPS/GNSS, gyrocompass, USBL/LBL acoustic positioning systems and survey sensors.
• Familiarity with offshore survey software such as EIVA NaviPac, Qinsy or equivalent.
• Ability to work independently offshore, troubleshoot equipment and coordinate with multidisciplinary marine teams.