Human Resources Manager

Job Description

About the Company

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Quell is a high-growth British defence and security AI technology start-up developing solutions to counter drone, vehicle, and human threats across the military, civilian and CNI sectors.

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Based near Cambridge, we are seeking an exceptional Human Resources Manager to take ownership of the people function. This is a hands-on and varied role where you will manage the full employee lifecycle, introduce essential HR processes, and help shape a supportive and high-performing culture as the company scales.

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Key Responsibilities

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• Managing the full employee lifecycle, including onboarding, probation, performance reviews, and off-boarding

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• Acting as the primary point of contact for managers and employees on HR matters

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• Developing and maintaining HR policies, procedures, and the employee handbook to ensure compliance with UK employment law

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• Providing guidance on employee relations and supporting managers with best practice

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• Manage all employee travel logistics, including flight bookings, hotel reservations, and local transport requirements.

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• Managing payroll input and employee benefits in collaboration with finance and external providers

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• Maintaining accurate HR systems, data, and records

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• Coordinating learning and development activities to support progression and capability building

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• Driving employee engagement initiatives and fostering an inclusive, supportive culture

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• Supporting leadership with workforce planning and organisational development

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• Ensuring compliance with health & safety and other statutory requirements

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• Championing diversity, equity, and inclusion across the business

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Requirements

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• Proven HR generalist experience, ideally within a start-up, scale-up, or fast-moving SME

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• Strong knowledge of UK employment law and HR best practices

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• Comfortable working as a standalone HR function, balancing strategic input with hands-on delivery

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• Confident communicator able to build trust at all levels

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• Proactive, adaptable, and able to work independently

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• CIPD Level 5 or above is desirable but not essential

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Details

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• Location: North Uttlesford / Greater Cambridge area, on-site

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• Five days a week on-site (ie: this is not a hybrid role)

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• Full UK driving licence required. If this isn't held, candidates will need to commit to obtaining within 6 months of their start date

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• Applicants must be fully eligible to work in the UK without restriction, time limit, or the need for current or future sponsorship.

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To Apply

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Please apply via LinkedIn with your CV and a short covering note, including your salary expectations and availability.

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