Senior Associate, HR Shared Services (12 month FTC)

CLS-Group
London

About CLS:

CLS is the trusted party at the centre of the global FX ecosystem. Utilized by thousands of counterparties, CLS makes FX safer, smoother and more cost effective. Trillions of dollars’ worth of currency flows through our systems each day.

Created by the market for the market, our unrivalled global settlement infrastructure reduces systemic risk and provides standardization for participants in many of the world’s most actively traded currencies. We deliver huge efficiencies and savings for our clients: in fact, our approach to multilateral netting shrinks funding requirements by over 96% on average, so clients can put their capital and resources to better use.

CLS products are designed to enable clients to manage risk most effectively across the full FX lifecycle – whether through more efficient processing tools or market intelligence derived from the largest single source of FX executed data available to the market.

Our ambition to make a positive difference starts with our people. Our values underpin everything that we do at CLS and define our working environment:

  • Pivotal purpose
  • Trusted guardian
  • Targeted innovation
  • Facilitate connections
  • Delivering excellence
  • Inclusive culture

Job information:

  • Functional title - Senior Associate, HR Shared Services
  • Department – Human Resources
  • Corporate level – Senior Associate
  • Report to – Vice President, Payroll and HR Shared Services

 

What you will be doing:

  • Working with external providers to administer full cycle semi-monthly US payroll process
  • Working with external providers to administer fully cycle monthly UK, Hong Kong, Japan, Germany, and Switzerland payroll processes
  • Supporting with monthly, quarterly and annual payroll tax filings and year-end procedures in all locations
  • Preparing and reconciling general ledger and payroll accounts
  • Supporting with open enrollment in the US and benefits annual enrolment in the UK
  • Supporting with internal/external payroll audits
  • Providing world class candidate care through the onboarding process; liaising with candidate, candidate manager and Talent Acquisition team throughout the onboarding process
  • Proactively maintaining and administering accurate and timely HR data via the global HR System (UKG Pro)
  • Administering all aspects of the employee lifecycle from recruitment trough onboarding and offboarding
  • Providing administration support for HR colleagues including HR Business Partners, Learning & Development, Reward, Global Mobility, and Talent Acquisition teams
  • Processing of purchase orders and invoices in close collaboration with finance colleagues
  • Partnering with other areas of HR and CLS to provide necessary information in support of HR Processes and wider HR Projects
  • Liaising with employees to resolve queries related to HR procedures, processes, policies, payroll and benefits.

What we’re looking for:

  • Experience in US payroll (required) and UK (optional)
  • Knowledge and experience of payroll and benefits processing
  • Knowledge of applicable US local, state and federal rules and laws would be an advantage
  • Customer Services Experience / Excellent written and verbal communication skills
  • Experience in data input and validation
  • High level professionalism and respect for confidential information
  • Excellent attention to detail ensuring accuracy
  • Ability to manage multiple, high priority tasks and adjust to shifting priorities while meeting deadlines
  • Excellent Excel and Word skills
  • High ethical standards, ability to work with discretion, and maintain the highly confidential nature of all human resources work
  • Teamwork
  • Experience with UKG, Greenhouse ATS and/or Activ

Professional qualifications / certifications

  • Payroll certification would be an advantage

Our commitment to employees:

At CLS, we celebrate inclusion and consider this to be one of our strongest assets. We are committed to fostering an environment in which everyone feels comfortable to be who they are, and inclusion is valued. All employees have access to our inclusive benefits, including:

  • Holiday - UK/Asia: 25 holiday days and 3 ‘life days’ (in addition to bank holidays). US: 23 holiday days.
  • 2 paid volunteer days so that you can actively support causes within your community that are important to you.
  • Generous parental leave policies to ensure you can enjoy valuable time with your family.
  • Parental transition coaching programmes and support services.
  • Wellbeing and mental health support resources to ensure you are looking after yourself, and able to support others.
  • Employee Networks (including our Women’s Forum, Black Employee Network and Pride Network) in support of our organisational commitment to embrace and always be learning more about inclusivity.
  • Hybrid working to promote a healthy work/life balance, enabling employees to work collaboratively in the office when needed and work from home when they don’t.
  • Active support of flexible working for all employees where possible.
  • Monthly ‘Heads Down Days’ with no meetings across the whole company.
  • Generous non-contributory pension provision for UK/Asia employees, and 401K match from CLS for US employees.
  • Private medical insurance and dental coverage.
  • Social events that give you opportunities to meet new people and broaden your network across the organisation.
  • Annual flu vaccinations.
  • Discounts and savings and cashback across a wide range of categories including health and retail for UK employees.
  • Discounted Gym membership – Complete Body Gym Discount/Sweat equity program for US employees.
  • All employees have access to Discover – our comprehensive learning platform with 1000+ courses from LinkedIn Learning.
  • Access to frequent development sessions on a number of topics to help you be successful and develop your career at CLS.
Posted 2026-09-18

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