The Security Assistant Project Manager provides dedicated
project management, governance, and assurance support to the
Sizewell C Projects and Assurance Manager across the complete
Sizewell C security portfolio. The postholder will play a pivotal role
in ensuring effective project planning, progress monitoring, risk
and issue tracking, stakeholder coordination, document control,
and compliance reporting across the Main Development Site
(MDS) and associated off-site facilities.
This role serves as a key operational interface directly with the
client, principal contractors and wider project stakeholders to align
all security operations with ongoing construction activities.


Up to 60k depending on experience and qualifications. - 12-Month Fixed Term contract (Mobilisation Target: 1st December 2026)

40 hours per week - Office Hours with operational flexibility and hybrid working options as required.


Key Responsibilities

- Support the development, baseline tracking, and ongoing maintenance of project plans,
schedules,and operational milestones across the Sizewell C security portfolio.
- Monitor project progress across all security workstreams and produce robust status reports,
dashboards, and management information metrics.
- Maintain central project governance documentation, including complete action, decision, risk, and issue logs (RAID logs), ensuring timely updates and escalation.
- Coordinate project activities, operational alignment, and stakeholder engagement across
multi-disciplinary site departments, Tier 1 contractors, and client teams.
- Maintain rigorous document control and project record management in strict accordance
with agreed site governance processes and ISO 9001 quality standards.
- Support internal and external assurance reviews, audits, and compliance activities,
including evidence gathering, audit preparation, and action tracking.
- Produce clear management information, executive performance dashboards, and key performance indicators (KPIs) for senior leadership.
- Provide day-to-day project administration and operational coordination support as directed by the Security Compliance Manager and Projects & Assurance Manager.
- Champion Health, Safety, and Environment (HSE) standards across all security operational areas, embedding an active, proactive safety culture.
- Ensure all personnel management, project activities, and access procedures comply
strictly with G4S HR policies, nuclear safety rules, and security vetting mandates.

Skills and Competencies

- Communication Skills: Excellent written and verbal communication skills, with the ability to draft concise management reports, project dashboards, and executive briefings.
- Planning & Organisation: Strong project planning, tracking, and organizational capabilities, with acute attention to detail and governance rigor.
- Tool Proficiency: High proficiency in MS Office (Word, Excel, PowerPoint) and Microsoft SharePoint for project documentation and workflow management.
- Stakeholder Management: Strong interpersonal and customer-focused skills, capable of
coordinating activities effectively across diverse internal and external workstreams.
- Adaptability & Flexibility: Ability to adapt to evolving project requirements, multi-agency
responses, and dynamic nuclear construction phases.
- Problem Solving & Teamwork: Collaborative team player with an innovative,
solution-oriented approach to resolving project roadblocks and risks.

Profile

Educational Requirements/Qualifications

- A good standard of education in Maths, English and IT.
- Solid knowledge of recognized project management principles (PRINCE2, APM, or equivalent).

Preferred Experience

- Proven track record in a Project Support Officer (PSO) or Assistant Project Manager (APM) role.
- Experience working within Critical National Infrastructure (CNI), nuclear new build, major infrastructure, military, or police environments.
- Demonstrable experience in maintaining project governance artifacts (action, decision, risk, and issue logs).
- Proven capability in establishing collaborative relationships with client representatives and
multi- disciplinary project teams.
- Practical experience supporting quality audits, compliance assurance, and document control.

Personal Qualities

- Highest levels of integrity, respectfulness, and professionalism required at all times.
- An engaging, proactive 'can do' attitude where successes and challenges are shared across the team.
- Strict adherence to commitments: 'Do what we say we are going to do and only commit to what can be.'
- Strong active listening skills and clear, open communication style.
- Ability to plan ahead to prevent surprises and proactively mitigate operational risks.

Professional Qualifications/Memberships

- PRINCE2 Foundation / Practitioner or APM Project Management Qualification (PMQ / PFQ)
held or working towards.
- Risk Management qualification held or developing towards.
- IOSH Managing Safely or relevant Health & Safety qualification preferred.

Specific Occupational Requirements

- Ability to pass and hold National Security Clearance Vetting
- UK Driving License is essential
- Produce a Five year verifiable work history

Training and Development Requirements
External / Client - Contract Specific:

- BPSS Vetting - NNB
- SC Security Clearance
- CSCS MAPS / EDF Site Induction
- D&A (Drug & Alcohol) Testing
- Sizewell C Site Induction & Local Site Access Protocols

Internal / Professional Development:

- BS7858 Vetting
- G4S Online Induction & Site Induction
- Project Management Training - PRINCE2 / APM Foundation (minimum) working towards Practitioner
- ISO 9001 Quality & Compliance Awareness
- Risk Management & RAID Log Maintenance
- MS SharePoint & Advanced Document Control

Job Ref 1G4S - G182

G4S are a recognised Disability Confident Leader Employer, committed to fostering an inclusive workplace where everyone can thrive. They prioritise accessibility, support, and opportunity for all employees. Join their diverse and empowering team today!

Key Information and Benefits
- 12 Month Contract
- 25 days leave per year + Bank Holidays
- G4S National Pension Scheme
- Life assurance benefit
- Employee discount scheme
- Eye care vouchers
- Aviva car, home and travel insurance discounts
- Health cash plan (covering employee and family)

About Staffline
Staffline is the UK's largest recruitment solutions partner, enabling over 35,000 people into good work every week. We operate at more than 420 customer sites across England, Scotland and Wales.

As one of the most established recruitment agencies in Nottingham with operations across the UK, we specialise in connecting businesses with temporary and permanent jobs across warehouse & logistics, food and drink, aviation, driving, technical & engineering, manufacturing & automotive and security.
Important Information

- Staffline and its subsidiaries do not charge any recruitment or job‑seeking fees at any stage of the hiring process.
- This job advert may not be copied, imitated, or used, in whole or in part, by third-party websites, without prior written consent from Staffline.
- Our job adverts are correct at the time of publication, but some details and job responsibilities are subject to change.