HR Administrator

Northrop Grumman UK; Cheltenham; On-site; GBP 28,000 - 32,000; Full time

Benefits offered by this job

Private Healthcare

Hybrid/ Flexible working

Compressed schedule (every otherFriday

Career development

Performance bonus

Job summary

Northrop Grumman UK is seeking an HR Administrator to support our HR Operations team. You will handle onboarding, payroll changes, and provide responsive HR support to employees and managers, ensuring data accuracy and compliant record-keeping.

You will manage the HR mailbox, assist with end-to-end processes, and generate HR reports using Excel and Workday, contributing to a compliant and efficient HR service across the UK sites.

Qualifications

• Significant HR administrative experience across the employee lifecycle.
• Experience using HR systems with focus on data accuracy.
• Strong communication and professionalism when supporting staff and managers.
• Able to handle confidential data with care.

Responsibilities

• Provide dedicated HR support with HR Partners and team.
• Manage the HR mailbox and respond to queries promptly.
• Support onboarding process for new hires and complete pre-employment checks.
• Execute payroll changes and contract changes accurately.
• Produce HR reports using Excel and Workday with accuracy.
• Manage lifecycle for contingent workers, including background checks.

Skills

HR Administration

HR systems

Data accuracy

Communication

Microsoft Office

Education

GCSE English and Maths

CIPD Diploma (Foundation) Level 3

Tools

Workday

Job description

UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes

RELOCATION ASSISTANCE: No relocation assistance available

TRAVEL: No

Annual salary: £28,000 - £32,000, dependent on experience

12-month FTC maternity cover

Define Possible at Northrop Grumman UK

At Northrop Grumman UK, our mission is to solve the most complex challenges by shaping the technology and solutions of tomorrow. We call it Defining Possible.

This mindset goes beyond our customer solutions; it’s the foundation for your career development and the impact we have within the community. So, what’s your possible?

The Opportunity

As a key member of our small HR Operations team, reporting to the HR Service Delivery Lead, you’ll be more than just an employee; you’ll be on a mission to provide top-tier HR support that assists our people to deliver groundbreaking solutions in defence, space and cyber security. From supporting employees and managers with their queries to ensuring seamless onboarding experiences and handling payroll changes with precision, your role is a vital one.

By looking after our people, you’ll be helping us to create a legacy in delivering cutting‑edge solutions to the defence, space and cyber security sectors that help protect the national security of the UK and its allies. With a global footprint, we operate from more than 10 sites across the UK, employing around 900 people in the UK.

The Role

• Providing dedicated HR support, working closely with the HR Business Partners and wider HR team, assisting employees and managers alike, ensuring a seamless resolution to any challenge faced.
• Managing the bustling HR mailbox, ensuring each query receives a prompt and helpful response.
• Extending a warm welcome to new hires by supporting the end to end process of onboarding new hires, including issuing offer paperwork and overseeing pre‑employment checks.
• Executing payroll changes with precision and care, ensuring smooth transitions for all contractual changes, leavers and the all‑in‑between.
• Regularly producing insightful HR reports from Excel and Workday, with unparalleled accuracy and efficiency.
• Managing the lifecycle process for contingent workers, from onboarding to termination, confirming that all contractors pass their background checks.
• Professionally handling reference requests for current or former employees.
• Maintaining meticulous employee records, guaranteeing legal compliance and confidentiality always.

Benefits

We can offer you a range of flexible and hybrid working options to suit you, including optional compressed working schedule with every other Friday off. Our benefits including Private Healthcare, career development opportunities and performance bonuses. For a comprehensive list of benefits, speak to our Recruitment Team.

What We're Looking For

• Significant HR administrative experience, ideally covering the full employee lifecycle, from onboarding to offboarding.
• Strong people skills – you communicate positively and with professionalism when supporting employees, managers, and your colleagues.
• HR systems expertise - previous experience using HR systems, with a strong focus on data accuracy and consistency.
• Efficiency and proactivity - you like to work smart, not just hard. You find ways to get things done effectively rather than just ticking off tasks.
• Natural problem‑solving skills - HR is fast‑paced and priorities shift. You can navigate competing demands, think on your feet and help streamline the way we work.
• Team contribution - you collaborate effectively with others, always step in to help when needed and want to contribute towards the wider team achieving its goals.
• Attention to Detail and Accountability - You take care when handling confidential HR data, ensuring accuracy and timely delivery.
• Knowledge of UK employment law - a solid understanding of key HR legislation and how it applies in practice.
• Strong Microsoft Word, Excel, PowerPoint and Outlook skills.
• GCSE grades A to C / 5-7 (or equivalent) in English and Mathematics, ensuring strong written communication skills and numeracy.

It’s a Bonus If You Have

• Experience working in a fast‑paced, HR Shared Service environment.
• Experience using Workday.
• CIPD Diploma in Human Resources Practice (Foundation) Level 3 (or equivalent).

Security Clearance

Due to the nature of our work, you must be a UK national for this clearance type.

You must be able to gain and maintain SC-level UK Government security clearance.

Our recruitment team is on hand to answer any questions and will guide you through the process: [e-mail].

Why join us?

A Mission to Believe In

Every day we contribute to building a more secure and connected world. Your work will have purpose, impact, and meaning.

A Place to Belong and Thrive

We believe every voice matters. You will join a supportive team that values diverse perspectives, inclusion, and collaboration.

Your Career, Your Way

Shape your career journey with access to development programmes, mentorship, and opportunities for internal mobility across our growing UK organisation.

Northrop Grumman is committed to hiring and retaining a diverse workforce, and encourages individuals from all backgrounds and all abilities to apply and consider becoming a part of our diverse and inclusive workforce.