Payroll and HR Officer - Part-time

At SI Group, we aspire for all employees to live and work to their full potential. We foster a unique environment where each employee is empowered to create value for our business with a commitment to safety and compliance. We promote personal and professional success that aligns with productivity and extraordinary results. Become a Catalyst for Change and help ignite impossible.

The Role:

We’re looking for a detail-oriented Payroll & HR Administrator to manage UK and Ireland payroll and support HR operations. This role requires strong knowledge of payroll legislation, excellent Excel skills, and a proactive approach to benefit administration and general HR support.

How You Will Make an Impact:

• Manage end-to-end UK and Ireland payroll via external provider (Cloudpay)
• Process onboarding, offboarding, and employee data changes
• Reconcile inputs from HR and T&A systems and conduct pre-/post-payroll checks
• Ensure compliance with HMRC, including year-end reporting (P11d, payrolled benefits)
• Administer pensions, calculate holiday pay, and support audits
• Generate reports for payroll validation and analysis
• Coordinate employee benefit schemes (pensions, healthcare, life assurance, company cars etc.)
• Maintain accurate records and communicate changes to providers and staff
• Support HR processes across the employee lifecycle, including recruitment admin, onboarding, and documentation
• Ensure data integrity across HR systems and assist with Occupational Health scheduling

Creating Extraordinary Starts With:

• 3+ years of UK payroll experience with strong knowledge of UK legislation and HMRC requirements
• Advanced Excel skills with the ability to manipulate, collate, and analyse large data sets accurately
• Excellent attention to detail and administrative precision
• Experience with HR and T&A systems (preferred)
• Clear and professional written and verbal communication
• Able to work independently, meet tight deadlines, and adapt in a fast-paced environment
• Flexibility to work extended hours or travel occasionally when required

What We Value:

• We strive for all employees to nurture physical, mental and emotional health both personally and professionally. Our commitment to health and wellness centres around prevention, early detection and embracing a healthy lifestyle. Some offerings may vary by role or country, but may include:
• Physical Health benefits including healthcare packages and vision care subsidies.
• Financial Wellness opportunities including life assurance and enhanced employer pension contributions.
• Wellbeing benefits including additional holiday entitlement, flexible and hybrid working opportunities, access to mental health support, various optional social activities, and fruit available on site.
• Progression opportunities including access to learning and development programmes that will empower you to grow both personally and professionally.

Belonging at SI Group

At SI Group, we strive for all employees to perform to their fullest potential. We create an environment where diversity is embraced, voices are heard, boundaries are pushed, and value is created. We celebrate diversity, equity, and inclusion as a driving force toward making the impossible possible, and we’re committed to ensuring all employees embrace it.

Data Privacy

We are committed to protecting your personal data. The information you provide will be used solely for recruitment purposes and processed in accordance with our Privacy Policy and local regulations. By submitting your application, you consent to our processing of your personal data.

Note for Recruitment Agencies: We handle job openings internally and prioritise direct hiring and referrals for efficiency. If necessary, we work with agencies from our Preferred Supplier List (PSL). We will not consider speculative CVs from agencies not on our PSL, and no introduction fee will be applicable.

We offer both full-time and part-time opportunities for this role, with hybrid working arrangements available.

Pay: Up to £30,000.00 per year