Human Resources Administrator in Chalfont Saint Peter

TSL is a leading international technical engineering and construction partner operating across the UK, Ireland, and Mainland Europe. We focus on design and build contracts for end user clients, specialising in the Food, Pharmaceutical, Logistics, Data Centre and Advanced Manufacturing sectors. TSL is committed to creating the spaces that enable the fourth industrial revolution, whilst ensuring we leave a positive environmental and social legacy for communities across the world. Our team works with our valued clients and supply chain partners to create a simple agenda concentrated on getting things done. Above all, we are focused on delivering first class projects, executed efficiently, without compromising on safety or quality.

The HR Administrator plays a key role in delivering an efficient, compliant, and high-quality HR service across the full employee lifecycle. The role is responsible for the day-to-day coordination and administration of HR processes, ensuring accuracy, strong audit trails, and compliance with UK employment law, right to work requirements, and industry standards.

Main Duties and Responsibilities

• Administration
  • Act as the first point of contact for all UK HR queries, providing a responsive and professional service to employees.
  • Maintain accurate employee data within HR systems promptly and correctly.
  • Manage the UK HR inbox, responding within agreed timeframes, and ensure all documentation is complete, compliant, and stored in line with GDPR and audit requirements.
• Onboarding & New Starters
  • Own the onboarding process from pre-employment through to week 1, including managing communications, coordinating and hosting inductions, and ensuring all compliance requirements.
  • Ensure new starters are accurately set up across HR systems, payroll, and benefits, with complete and compliant employee records maintained.
• Payroll & Benefits
  • Own the preparation and accuracy of all monthly payroll data, including starters, leavers, contractual changes and any other updates.
  • Maintain payroll trackers and audit trails, resolve payroll queries, and support the smooth running of the monthly payroll cycle.
  • Also manage employee benefits, liaising with providers where needed, and process HR-related invoices accurately and on time.
• Time, Attendance & Leave
  • With support from the HR Advisor, administer annual leave, sickness absence, and family-friendly leave processes, ensuring all data is accurately recorded within HR systems.
  • Support managers with basic absence queries and ensure relevant information is captured and shared with the HR Advisor in a timely manner.
• Employee Relations Support
  • Provide administrative support across employee relations processes, including preparing letters, meeting notes, and documentation.
  • Support HR Advisor and Manager with case administration, ensuring records are accurate, well-organized, and maintained in line with confidentiality and compliance requirements.
• Global Mobility & Compliance
  • Own the administration and tracking of A1 certificates and visa requirements, ensuring records are accurate and up to date.
  • Maintain Right to Work documentation and support with sponsor license requirements, escalating any risks or upcoming deadlines as needed.
• Reporting & HR Data
  • Maintain accurate people data and support the production of regular HR reports, including joiners, leavers, absence, and payroll inputs.
  • Ensure trackers and reporting data are consistently updated, reliable, and available to support business decision-making.
• Leavers & Offboarding
  • Process resignations and manage all leaver administration, including preparing documentation, updating HR systems, and coordinating final payroll inputs.
  • Support the exit interview process and ensure all records are accurately completed and archived.
• Continuous Improvement
  • This role allows for suggestions and recommendations on process improvement and involvement in Group HR projects.
  • Identify opportunities to improve HR processes and administrative efficiency, supporting ongoing system and process improvements.
  • Contribute to standardising HR practices and support wider HR projects as required.