HR Global Mobility and Rewards Administrator

Harbor is seeking a HR Global Mobility and Rewards Administrator to join our growing team. Global mobility sits at the intersection of payroll, tax, social security and immigration; share plan and reward administration sits alongside it, connecting equity compensation, payroll and compliance. Together they offer a fascinating, fast-moving foundation for a career in reward and international working. The role is admin-focused day to day, but it isn't process-for-the-sake-of-it: you'll need to understand why things are done, not just how. Working closely with and supported by our Global Mobility Lead and Global Reward Manager, who own the technical and advisory side, you'll coordinate the moving parts of our clients' international assignments and share plan activities, steadily building your own knowledge of the technical detail — including the tax, equity and compliance elements — over time.

This is a great opportunity for someone at the start of their career — a graduate, or someone with some administrative experience — who wants to build genuine technical expertise across two connected areas: international mobility and employee share plans. We're looking for someone to grow with us. This is a hybrid position that offers remote work capability, with our office located in Nantwich, England.

Key responsibilities:

Coordination and administration

Acting as a key liaison between employees, client HR, payroll, finance, and our external providers and service partners — including share plan administrators and professional services firms

Coordinating the administrative steps of international assignments to agreed timescales

Administering employee share plans using a dedicated share management platform (full training provided)

Supporting the planning and execution of cyclical reward events, ensuring all activities are delivered accurately and within established timelines

Maintaining accurate case records and documentation across assignments, share plans and reward programmes, and producing regular status reports

Service delivery:

Serving as a point of contact for clients, responding to and resolving ad hoc employee queries clearly, accurately and professionally

Monitoring service delivery and deadlines, proactively identifying and escalating issues that may impact delivery

Checking supplier invoices against agreed services and budgets, and flagging discrepancies for approval

Explaining 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 and experience:

No prior mobility or share plan experience needed — full training and support provided

A 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

Desirable:

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, rather than working in isolation

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

About Us:

Harbor is the preeminent provider of expert services across strategy, legal technology, operations, and intelligence. Our globally integrated team of 900+ strategists, technologists, and specialists navigate alongside our clients – leading law firms, corporations, and their law departments – to provide essential resources and invaluable insights. Anchored in a rich heritage of deep knowledge, steadfast relationships, and mutual respect, our unwavering dedication lies in shaping the future of the legal industry and fostering enduring partnerships within our community and ecosystem.

Harbor is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, ethnicity, color, religion, sex, sexual orientation, gender identity, marital status, civil union status, national origin, ancestry, age, parental status, disabled status, veteran status, or any other legally protected classification, in accordance with applicable law.