Assistant Manager jobs in United Kingdom

National Gas is securing Britain's energy. We transport gas throughout Great Britain, repair and maintain pipelines, and manage meters that allow millions of homes and businesses to access the energy they need. We are the national gas network, providing secure energy to power Britain, achieve net zero, and maintain our industrial competitiveness.

You’ll play a key role in supporting the delivery of capital projects to time, cost, and specification while ensuring health, safety, and environmental standards are maintained throughout. Working closely with the Project Manager, you’ll help achieve regulatory objectives and contribute to successful project outcomes.

• Supporting the Project Manager in delivering asset replacement projects.
• Providing project support during the pre‑sanction design process, including reviewing proposals for SHE management, project risks, deliverability, and safety performance.
• Assisting in the development, implementation, and management of projects.
• Managing and coordinating contractors and project teams to ensure smooth delivery.
• Preparing regular updates and monthly status reports covering SHE performance, milestone progress, risk management, and financial performance.
• Working closely with the Site Supervisor to monitor contractor performance.
• Actively developing your skills to achieve and maintain relevant authorisations within agreed timescales.

You’ll bring strong organisational and communication skills, with the ability to influence and negotiate effectively. You’ll have experience in project delivery and team leadership, and you’ll be confident managing risk to deliver projects on time, within scope, and to budget. A proactive approach to learning and development will help you succeed in this role.

• HNC/HND level qualification (or equivalent) in mechanical or civil engineering.
• Working towards APMP qualification and NEC 4 accreditation.
• Basic knowledge of the NEC framework.
• Experience in contract management within fixed price and target cost contracts.
• Solid project management skills, including risk management for delivery to scope, time, cost, and quality.
• Relevant experience in project delivery.
• Strong influencing, negotiating, and communication skills.
• Experience in control systems replacement and previous project management roles – desirable.
• Experience in the gas construction industry, supported by recognised training or qualifications in health, safety, environmental, and financial management – desirable.
• Full UK car driving licence.

The successful candidate must be able to achieve and maintain Security Check (SC) security clearance for this role. Many of the positions within our company are subject to national security clearance and trade control restrictions. This means that your eligibility for certain roles may be affected by your place of birth, nationality, current or former citizenship, and any residency you hold or have held. Further details are available at United Kingdom Security Vetting: clearance levels - GOV.UK.

• Competitive salary and annual performance bonus.
• Double‑match pension scheme (max. company contribution 12%).
• Generous holiday allowance (26 days + bank holidays).
• Flexible benefit scheme, including private healthcare, dental insurance, technology plans, and more.
• Financial protection with 10x salary death in service and financial support if you’re unable to work due to long‑term illness or injury.
• Excellent family‑friendly provisions such as maternity, paternity, adoption, and shared parental leave.
• Professional development opportunities, including financial support to help you cover the cost of professional membership subscriptions.
• Employee assistance programme offering free confidential professional counselling 24/7.
• Inclusive, supportive, and forward‑thinking workplace.

At National Gas, we are disability confident and signatories of the Armed Forces Covenant, committed to building a workforce that represents the communities we serve. We celebrate the different experiences our colleagues bring to our organisation and strongly encourage applicants of all backgrounds to apply. Please let us know of any reasonable adjustments you need to perform your best.

Applicant Inquiries: All of you will be treated with the same standards, that is the reasons for making these comments and public information. This policy, Accounts, the EEO Committee is also available in our workplace. We welcome candidates of all ages, sexes and creeds. This is a Union Job.