Tunnel Engineer (TBM Specialist Survey Engineer)

In a world of possibilities, pursue one with endless opportunities. Imagine Next! At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of valuing people, embracing agility, and fostering growth, we cultivate an innovative culture that empowers you to achieve your full potential. Unleash your talent and redefine what’s possible. Job Description: Tunnel Engineer (TBM Specialist Survey Engineer) Dubai, UAE Parsons is looking for an experienced and talented Tunnel Engineer (TBM Specialist Survey Engineer) to supervise and review survey works reporting Tunnel Resident Engineer specifically for Tunnel / Galleries & Segment production Works during TBM operation & Tunnel construction works ensuring compliance with design specifications, safety standards, and project timelines. Previous Metro projects are essential. What You'll Be Doing: - Prepare daily/weekly survey reports, including trend analysis of alignment deviations, and contribute to risk registers or non-conformance reports. - Assist in monitoring TBM tunneling operations, including alignment checks, surface monitoring(settlement/heave). - Support surveys work in terms of traverse calculations review, implementation of tunnel CenterPoint at stations, reviewing tunnel virtual axis calculation and checking TBM alignment to remain within allowable tolerances. - Establish and maintain primary and secondary control networks inside the tunnel, including transfer of surface control points through shafts. - Awareness of TBM survey software for ring installation vertical/horizontal curves. - Calculation review for TBM guidance data, including laser target extension and alignment inputs within the tunnel till the TBM. - Review and assist in checking TBM roll, pitch, and yaw, bored tunnel lips & steps to report deviations to senior engineers. - Participate in breakthrough preparations, including precise alignment surveys and coordination with the receiving shaft team. - Help conduct 3D measurements for tunnel alignment before/after breakthroughs and during TBM break-In and break‑Out as well as the Annexes locations. - Assist in wriggle surveys and as‑built surveys, ensuring accurate data collection and documentation. - Support identification of critical zones requiring special rings based on survey information. - Assist in reviewing setting‑out points for NATM tunnel connections and annex interfaces. - Support 3D survey checks for moulds and precast segments during production. - Assist in reviewing shop drawings, method statements, and survey‑related documents under the direction of the Tunnel Engineer. - Provide on‑site technical support to ensure compliance with quality and safety requirements. - Coordinate with surveyors, inspectors, and contractor teams to resolve minor survey‑related issues. - Maintain daily survey logs, alignment records, and progress documentation. - Support preparation of as‑built documentation and ensure accuracy of survey data. - Assist in preparing weekly/monthly progress inputs related to survey and TBM alignment. - Review the validity for calibration and maintenance documents of survey equipment, including total stations, prisms, targets, and TBM-integrated sensors. - Collaborate with the instrumentation and monitoring team to integrate survey data with geotechnical readings for holistic tunnel performance assessment. - Ensure all survey activities comply with project specifications, international standards (e.g., ITA guidelines), and local regulatory requirements. - Support emergency response surveys in case of unexpected ground movements or machine stoppages. - Follow RTA safety procedures and promote safe work practices in tunneling environments. - Prepare daily/weekly survey reports, including trend analysis of alignment deviations, and contribute to risk registers or non-conformance reports. - Assist in monitoring TBM tunneling operations, including alignment checks, surface monitoring(settlement/heave). - Support surveys work in terms of traverse calculations review, implementation of tunnel CenterPoint at stations, reviewing tunnel virtual axis calculation and checking TBM alignment to remain within allowable tolerances. - Establish and maintain primary and secondary control networks inside the tunnel, including transfer of surface control points through shafts. - Awareness of TBM survey software for ring installation vertical/horizontal curves. - Calculation review for TBM guidance data, including laser target extension and alignment inputs within the tunnel till the TBM. - Review and assist in checking TBM roll, pitch, and yaw, bored tunnel lips & steps to report deviations to senior engineers. - Participate in breakthrough preparations, including precise alignment surveys and coordination with the receiving shaft team. - Help conduct 3D measurements for tunnel alignment before/after breakthroughs and during TBM

Prepare daily/weekly survey reports with trend analysis of alignment deviations and contribute to risk registers or non-conformance reports. Monitor TBM tunneling operations including alignment checks and surface monitoring (settlement/heave). Review traverse calculations, implement tunnel CenterPoint at stations, and check TBM alignment within tolerances. Establish and maintain primary and secondary control networks inside the tunnel, including transfer of surface control points through shafts. Be aware of TBM survey software for ring installation and vertical/horizontal curves. Review TBM guidance data, laser target extension, and alignment inputs within the tunnel until the TBM. Review TBM roll, pitch, and yaw, bored tunnel lips and steps, and report deviations to senior engineers. Participate in breakthrough preparations with precise alignment surveys and coordination with the receiving shaft team. Conduct 3D measurements for tunnel alignment before/after breakthroughs and during TBM break-in and break-out, including annex locations. Perform wriggle surveys and as-built surveys with accurate data collection and documentation. Identify critical zones requiring special rings based on survey information. Review setting-out points for NATM tunnel connections and annex interfaces. Support 3D survey checks for moulds and precast segments during production. Review shop drawings, method statements, and survey-related documents under the direction of the Tunnel Engineer. Provide on-site technical support to ensure quality and safety compliance. Coordinate with surveyors, inspectors, and contractor teams to resolve minor survey-related issues. Maintain daily survey logs, alignment records, and progress documentation. Assist in preparing as-built documentation and verify survey data accuracy. Prepare weekly/monthly progress inputs related to survey and TBM alignment. Verify calibration and maintenance documents for survey equipment (total stations, prisms, targets, TBM-integrated sensors). Collaborate with instrumentation and monitoring to integrate survey data with geotechnical readings for tunnel performance assessment. Ensure all survey activities comply with project specifications, ITA guidelines, and local regulatory requirements. Support emergency response surveys for ground movements or machine stoppages. Follow RTA safety procedures and promote safe tunneling practices.