Global Mobility & Rewards Administrator (Hybrid/Remote)

Harbor; Nantwich; Hybrid; GBP 32,000 - 42,000; Full time

Job summary

Harbor is seeking an HR Global Mobility and Rewards Administrator to join our growing team in Nantwich, England. The role is admin-focused day to day, with full training provided, coordinating international assignments, share plan administration and reward activities in collaboration with the Global Mobility Lead and Global Reward Manager.

You will liaise with employees, client HR, payroll and external providers; manage data in Excel; ensure timely delivery of cycles and reports; and develop

Qualifications

• No prior mobility or share plan experience needed — full training and support provided.
• Genuine interest in how international working and employee reward operate, and appetite to learn the technical detail over time.
• Strong administrative and organisational skills with excellent attention to detail — a meticulous, structured, systematic approach.
• Comfort with numbers, data and detail; an analytical, curious mindset.
• Experience using Microsoft Excel, including data manipulation and analysis; competent with Microsoft Office and case management systems.
• Excellent written and verbal communication skills.
• Ability to manage multiple cases and priorities effectively and work to strict deadlines.
• Strong problem-solving skills and a customer-focused approach, delivered with a professional, calm demeanour.
• Ability to build effective relationships with clients, colleagues and external stakeholders.
• Experience in employee reward, compensation, benefits, or share plan administration.
• Experience working with HR, payroll, or reward-related systems.
• Familiarity with equity compensation or employee share schemes.
• Personal attributes — Highly organised and detail-oriented.
• Able to see the bigger picture: understands why a task matters and how it connects to the wider assignment, share plan cycle and client relationship.
• Proactive and adaptable in a fast-paced environment.
• Professional and confident when interacting with clients and stakeholders.
• Able to work independently while contributing effectively as part of a team.

Responsibilities

• Coordinate and administer international assignments to agreed timescales.
• Act as liaison between employees, client HR, payroll, finance and external providers and service partners including share plan administrators and professional services firms.
• Coordinate the administrative steps of international assignments to agreed timescales.
• Administer employee share plans using a dedicated share management platform (full training provided).
• Support the planning and execution of cyclical reward events, ensuring all activities are delivered accurately and within established timelines.
• Maintain accurate case records and documentation across assignments, share plans and reward programmes, and produce regular status reports.
• Serve as a point of contact for clients, responding to and resolving ad hoc employee queries clearly, accurately and professionally.
• Monitor service delivery and deadlines, proactively identifying and escalating issues that may impact delivery.
• Check supplier invoices against agreed services and budgets, and flag discrepancies for approval.
• Explain our processes and services to client employees clearly and accurately.
• Data and reporting: performing data analysis, validation and manipulation using Microsoft Excel to support mobility, reward, and reporting requirements.
• Improvement and growth: Identifying opportunities to improve processes, service efficiency, and operational effectiveness.
• Building knowledge of the technical side of the role — cross-border tax, social security, compliance, and equity compensation — with the support of the Global Mobility Lead and Global Reward Manager.

Skills

Administrative skills

Excel data analysis

Communication skills

Attention to detail

Data manipulation

HR systems experience

Equity compensation familiarity

Tools

Microsoft Excel

Microsoft Office

Case management systems

Job description

Harbor is seeking an HR Global Mobility and Rewards Administrator to join our growing team in Nantwich, England. The role is admin-focused day to day, with full training provided, coordinating international assignments, share plan administration and reward activities in collaboration with the Global Mobility Lead and Global Reward Manager.

You will liaise with employees, client HR, payroll and external providers; manage data in Excel; ensure timely delivery of cycles and reports; and develop