HR Administrator

Sigma; Castleford; Hybrid; GBP 25,000 - 35,000; Full time

Job description

Career Band (Internal Only): 6 | Hours Per Week: 40 | Closing Date: 22.04.25

Overview of company:
Sigma are experts at transforming commercial space. With over 20 years’ experience operating in the fast-paced and dynamic retail sector, Sigma provide a true end-to-end service; from store construction and consolidation to fixture procurement, projects, and mechanical & electrical installation.

Ranked in the top 10% of the 2019 Sunday Times International FastTrack 200 awards, we’ve been acknowledged as being one of Britain’s fastest growing private companies.

It’s our people that make us who we are, and we are proud to have some of the most experienced, knowledgeable, passionate, and dedicated individuals within our industry, at every level in our business.

Sigma is committed to creating a diverse environment and is proud to be an equal opportunities employer.

Outline of Role
You will be required to work closely with the HR Generalist as well as building good working relationships with colleagues across the Sigma group and external consultants.

The main duties are to assist the HR Generalist by dealing efficiently with every aspect of HR administration.

The ability to be flexible and adapt to any task is essential. As is the skill of working on your own initiative.

Main Responsibilities
Recruitment & Onboarding

1. Coordinate job postings
2. Support communications with Managers regarding candidates.
3. Prepare employment contracts and offer letters and check digital right to work completion.

HR Compliance & Documentation

1. Ensure HR processes comply with labour laws and company policies
2. Assist in audits by providing required documentation
3. Maintain confidentiality of sensitive employee information.

Benefits Support

1. Provide necessary data to payroll for processing
2. Support employee queries to benefits, and deductions
3. Manage benefits administration - upload new starters, leavers and any updates required.

Day-to-Day HR Operations

1. Support the administration for the full employee life cycle.
2. Assist in organising HR events, trainings, and wellbeing activities
3. Support performance management review cycles
4. Handle employee queries or direct them to the right HR team member.

HR Systems & Reporting

1. Manage employee life cycle changes within the system - adding starters and leavers and processing employee changes.
2. Ensure data accuracy in HR systems, Employment Hero, Talos.

Knowledge/experience Required

1. Previous experience of administration
2. Knowledge and understanding of GDPR at foundation level
3. Great listening skills
4. Desire to be proactive and create a positive experience for others.
5. Strong organisational and planning skills.
6. Computer literacy - Microsoft Word/Excel/Office 365
7. Competent picking up new systems
8. Desire to understand processes and work to improve them where possible.
9. At least 1 year of experience in HR administration or a similar role.
10. Ability to manage time and workload effectively.
11. Strong organisational and multitasking skills with exceptional attention to detail.
12. Excellent communication and interpersonal abilities to build and maintain professional relationships.
13. Proactive, adaptable, and able to handle varied responsibilities efficiently.
14. Solid understanding of confidentiality and regulatory compliance requirements.

Benefits:

1. 25 days holiday plus bank holidays
2. A day’s ‘birthday leave’ to be taken within your birthday month
3. Opportunity to buy or sell up to 3 days holiday*
4. Opportunity for hybrid working*
5. Ability to participate in the Octopus EV salary sacrifice scheme*
6. Ability to participate in the Cycle to Work Scheme*
7. Employee Assistance Programme
8. Healthshield cash plan with discounts on high street stores
9. Free external financial advice - offering support for mortgages, pensions and insurances
10. Enhanced family friendly pay*
11. Free tea, coffee and fruit on all sites.

∗ Subject to eligibility
Opportunity to be involved with:

1. Group Colleague Board
2. Quarterly Corporate Events/Charity Involvement

Sigma is committed to providing colleagues with opportunities to progress their career, supported by a range of training and development activities and interventions.

If you think you’ve got what it takes to join our growing, winning team we’d love to hear from you.