Help Shape the UK’s Energy Future
Instrumentation & Monitoring Manager Opportunity with the Civil Works Alliance (CWA), Supporting Sizewell C
As part of the CWA (Civil Works Alliance), you will support the building of Sizewell C. Sizewell C will be a 3.2-gigawatt power station generating low-carbon electricity for around 6 million homes and will play a key role in our energy future, supplying reliable, clean electricity for at least 60 years. This role will be within the Marine and Tunnels Section.
What will you do?
Position Summary
We are seeking an experienced Instrumentation & Monitoring (I&M) Geotechnical Manager to lead all geotechnical instrumentation, monitoring, interpretation, and reporting activities for a major underground infrastructure project involving onshore shafts and undersea tunnelling works executed using both Slurry and Earth Pressure Balance (EPB) Tunnel Boring Machines (TBMs).
The successful candidate will be responsible for developing and managing the project-wide instrumentation and monitoring strategy to ensure safe excavation, asset protection, environmental compliance, and real-time risk mitigation throughout shaft sinking, and tunnel excavation operations.
Key Responsibilities
Geotechnical Instrumentation & Monitoring Management
Design review, supervise installation, commissioning/decommissioning, operation, and maintenance of all geotechnical and structural instrumentation systems.
Develop and implement the Instrumentation & Monitoring Plan in accordance with project specifications, design requirements, and international standards.
Manage monitoring systems for:
Ground movement and settlement.
Building and infrastructure deformation.
Tunnel convergence.
Shaft behaviour.
Marine and seabed monitoring.
Piezometric and groundwater monitoring.
Vibration and noise monitoring.
Structural health monitoring.
Establish trigger levels, alarm thresholds, and response protocols.
TBM & Underground Works Support
Provide geotechnical monitoring support during Slurry TBM and EPB TBM excavation activities.
Interpret instrumentation data to assess excavation performance, face stability, settlement trends, and groundwater behaviour.
Work closely with tunnelling, temporary works, and geotechnical design teams to mitigate geotechnical risks.
Support safe execution of:
Deep shafts.
Segmental lining installation.
Marine interface works.
Undersea tunnel excavation.
Data Analysis & Reporting
Oversee acquisition, validation, interpretation, and presentation of monitoring data.
Manage automated monitoring systems and real-time dashboards.
Prepare daily, weekly, and monthly monitoring reports.
Conduct trend analysis and predictive assessments to identify emerging risks.
Present findings and recommendations to project management, designers, client representatives, and independent reviewers.
Stakeholder Coordination
Coordinate with designers, contractors, survey teams, marine specialists, TBM teams, and third-party stakeholders.
Interface with client representatives and regulatory authorities regarding monitoring compliance and risk management.
Participate in technical meetings, risk workshops, and safety reviews.
What are we looking for?
Skills & Competencies
Experience
Extensive experience in geotechnical instrumentation and monitoring for large infrastructure or tunnelling projects.
Demonstrated experience within:
Undersea or subsea tunnels.
Deep shaft construction.
Slurry TBM and EPB TBM operations.
Urban or sensitive-environment tunnelling projects.
Strong understanding of geotechnical behaviour associated with soft ground tunnelling and groundwater control.
Technical Skills
Expertise in geotechnical instrumentation systems including:
All types of geotechnical Instrumentation including Inclinometers, Extensometers, Piezometers, Settlement monitoring systems, Fibre optic monitoring systems
Familiarity with data acquisition and monitoring platforms.
Strong analytical and report-writing capabilities.
Knowledge of relevant international standards and tunnelling best practices.
Knowledge of Python programming desirable.
Knowledge of AutoCAD desirable.
What we will offer you?
The CWA is a single delivery organisation made of up of the client (Sizewell C) and three parent companies - Balfour Beatty, Bouygues and Laing O'Rourke - which offer industry leading packages including market leading salaries, generous annual leave entitlements, pension scheme and other flexible benefits.
About Us
The CWA celebrates the creativity and innovation that comes from a diverse workforce, and we welcome applications from people of all backgrounds — especially those from under‑represented communities. Our project is built on five core values: Humility, Positivity, Respect, Solidarity, and Clarity.
By joining us, you’ll be encouraged to bring your whole self to work, speak up, and share your ideas. We encourage applications from all suitably qualified candidates, regardless of gender, race, disability, age, sexual orientation, gender reassignment, religion or belief, marital status, or pregnancy and maternity.
We are committed to protecting your privacy. If you decide to apply, please avoid including sensitive personal data in your CV