Security Assistant Project Manager

Staffline

Sizewell

Hybrid

GBP 54,000 - 66,000

Full time

14 days+

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Benefits offered by this job

25 days leave per year + bank holidays

Life assurance benefit

Aviva car, home and travel insurance

Health cash plan

Job summary

G4S is seeking a Security Assistant Project Manager to provide dedicated project management, governance, and assurance support to Sizewell C Projects and Assurance Manager across the complete security portfolio.

The postholder will play a pivotal role in issue tracking, stakeholder coordination, document control, and compliance reporting across the Main Development Site (MDS) and associated off-site facilities.

Qualifications

A good standard of education in Maths, English and IT.
PRINCE2 Foundation / Practitioner or APM PMQ / PFQ held or working towards.
Experience in PSO/APM roles and governance artifacts.
Experience in nuclear/critical infrastructure environments is preferable.
Evidence-based audits, compliance assurance, and document control experience.

Responsibilities

Support development and maintenance of project plans, schedules and milestones.
Monitor progress and produce status reports, dashboards and KPIs.
Maintain RAID logs and governance documentation with timely updates.
Coordinate activities across multi-disciplinary teams and client representatives.
Ensure document control aligns with site governance and ISO standards.
Support assurance reviews, audits and evidence gathering.
Produce management information for senior leadership.
Provide day-to-day project administration and coordination as directed.
Champion HSE standards across security operations and safety culture.

Skills

Communication

Planning & Organisation

Stakeholder Management

Adaptability & Flexibility

Problem Solving & Teamwork

MS Office

SharePoint

Education

PRINCE2 Foundation / Practitioner or APM PMQ/PFQ

Maths, English, IT literacy

IOSH Managing Safely

ISO 9001 Awareness

Tools

MS SharePoint

Job description

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

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
MS SharePoint & Advanced Document Control

Job Ref 1G4S - G182

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Key Information and Benefits