Total Rewards Administrator

General Dynamics Mission Systems engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully execute missions across all domains of operation. With a global team of more than 13,000 top professionals, we partner with the best in industry to expand the bounds of innovation in the defence and scientific arenas. In the UK, we are leading the way in avionics and communication systems. Given the nature of our work and who we are, we value trust, honesty, alignment and transparency.

We’re looking for a detail‑oriented Total Rewards Administrator to support the delivery of our Total Rewards function. This role plays a key part in ensuring accurate administration, effective data management, and smooth coordination of core reward activities.

Working closely with the wider team, you’ll provide structured support across benefits, pensions, and reward processes—helping to maintain high data accuracy, support cyclical activity, and ensure work is delivered efficiently and on time. You’ll also contribute to continuous improvement initiatives, supporting the development of more streamlined and scalable Total Rewards processes.

What you’ll be doing:

Benefits & Pension Administration

• Maintain benefits platform data, including joiners and leavers
• Support monthly data submissions to external providers
• Manage and respond to employee benefit queries in a timely manner
• Assist with pension administration, including documentation and data validation
• Maintain audit records and ensure a high level of data accuracy

Reward Data & Reporting

• Run standard reports and support data validation checks
• Maintain trackers and data used across Total Rewards processes

Communications & Coordination

• Support the drafting of employee communications
• Assist with preparing presentations and guidance materials
• Coordinate timelines for key reward processes and activities

Process Improvement & Systems

• Support updates to procedures and process documentation
• Prepare data and materials for system uploads and enhancements
• Contribute to improving processes and reducing manual activity

Invoice Management

• Raise requisitions and purchase orders
• Support invoice receipting and tracking
• Liaise with stakeholders and providers to ensure timely and accurate payment

To be successful in the role you will be able to demonstrate:

• Strong attention to detail with a high level of accuracy in data handling
• Proficient in Microsoft Excel, Word and PowerPoint (including data validation, lookup functions and presentation preparation)
• Well organised, with the ability to manage multiple tasks and priorities effectively
• Clear and confident written communication skills
• Strong interpersonal skills with the ability to collaborate effectively with a range of stakeholders
• Proactive and eager to learn, with an interest in developing within Total Rewards
• Ability to respond to routine employee and HR queries
• Proven ability to provide administrative support across a range of activities
• Capability to supporting cyclical HR processes (e.g. benefits administration, audit requirements, pay review cycles)
• Previous experience in Compensation & Benefits administration is desirable
• Experience using HR systems is desirable
• Experience with Oracle is advantageous
• Undergraduate degree or equivalent experience is desirable

Salary for this position is £30,600 to £34,000, depending on experience plus our excellent flexible benefits package.

We offer hybrid working - for this role ideally we are looking for an average of 2 days per week per month on site.

We pride ourselves in being a great place to work with a shared sense of purpose, offering impressive benefits: 

• A compressed nine-day fortnight and compressed hours - which means every other Friday off. 
• A personalized career development plan, alongside regular progress reviews - supporting and valuing your progression within the Company. 
• A flexible working environment where your contributions are recognized and rewarded with flexible benefits 

We believe in maintaining a diverse workplace - inclusive of beliefs, cultural background, job experiences, thoughts and ideas. If who we are and what we do resonates with you, we welcome you to join our inclusive team!

Our success is fuelled by our colleagues and the wide variety of backgrounds, perspectives, and skills they bring to the Company.

We are a Disability Confident Employer, as such we offer an interview to disabled people who meet the minimum criteria for the job.
Please email [email protected] if you would like your application to be considered under the DC Scheme.

All successful/appointed applicants must be able to obtain a level of UK Security clearance that is appropriate for the role and undertake suitable Right to work checks

Every application matters to us. We want you to know that each application we receive is reviewed by a real person—not just an algorithm. Our screening questions are also carefully considered to help us understand your experience and fit for the role.

We appreciate the time you take to apply.