HR Payroll and Benefits Coordinator

Critical Mass; London; On-site; GBP 35,000 - 50,000; Full time

Job summary

A leading company in the advertising industry is seeking an HR Payroll & Benefits Coordinator for their London office. In this role, you'll manage key HR functions including payroll processing, benefits administration, and employee support in a collaborative environment. Ideal candidates will have experience in HR and demonstrate effective interpersonal skills. This role offers a competitive salary and a supportive workplace culture focused on employee well-being and development.

Benefits

Global maternity and parental leave

Competitive benefits packages

25 days holiday, compassionate leave, wellness days, and flex days

Diversity and Inclusion Board

Enterprise-wide employee discounts

Qualifications

• Prior experience in HR, particularly in payroll and benefits.
• Strong communication skills for clear information delivery.
• Ability to connect with others and think globally.

Responsibilities

• Responsible for onboarding, payroll balancing, and employee queries.
• Manage UK payroll administration and oversee benefits.
• Coordinate offboarding processes and support audit requirements.

Skills

Interpersonal Skills

Organizational Skills

Multitasking Abilities

Self-awareness

Data Processing Skills

Tools

Microsoft Office Suite

SAP

Job description

Critical Mass is on the lookout for a dynamic HR Payroll & Benefits Coordinator to join our London team.
In this pivotal role, you'll report directly to the Senior HR Director and collaborate closely with the Senior HR Business Partner, Talent Acquisition Manager, and Head of Finance. You’ll play a key role in supporting and enhancing all aspects of our payroll, benefits, and talent programs across our two London offices—Critical Mass and Tribal EMEA. This is a great opportunity for someone who thrives in a collaborative environment and is passionate about making a real impact on the employee experience.

You will:

HR Responsibilities

• New hire onboarding and inductions including right to work checks and I.T. support
• Manage and monitor new hire probation periods
• Upkeep of employee files
• Manage promos, increases, and employee adjustments in line with audit requirements
• Manage LOA’s
• Coordinate offboarding processes and track turnover trends
• Respond to employee queries on day-day, payroll and benefits
• Participate in Global Talent team projects
• Payroll Responsibilities
• Manage the administration and processing of UK payroll activities
• Perform payroll balancing procedures
• Support the creation and generation of payslips, P45, P60, and P11Ds.
• Manage and monitor payroll audit requirements aligned to SOX
• Develop ad hoc financial and operational reporting
• Liaise with Omnicom/Willis Tower Watson on payroll, benefits, and tax each month.

Benefits Responsibilities:

• Manage and promote UK benefits portfolio
• Present new employee benefit inductions
• Administer benefits to new employees post probation
• Trigger and review benefit reporting
• Reconcile benefit invoices and renewals
• Track bonus-based benefits and align to payroll

You have:

• Some prior experience or exposure to HR specifically in payroll and benefits, preferably a role in an interactive environment or advertising agency.
• A strong sense of curiosity and a desire to understand the impact of your work.
• Effective interpersonal skills, demonstrating the ability to connect with others, manage up and think globally.
• Have a keen sense of tact, judgment, and self-awareness, utilising these qualities to navigate various situations to learn how to make decisions.
• Familiarity with Microsoft Office Suite, including PowerPoint and Keynote, with top-notch word-processing skills.
• Previous experience on SAP would be a benefit.
• Oral and written communication skills are a must-have, allowing them to convey information and ideas with ease. Strong data and processing skills.
• Strong organisation skills, detail oriented, excellent multitasking abilities, and the capacity to work well under stress in a dynamic environment. Learn how to navigate a constant flow of information, showcasing adaptability and quick decision-making.
• A good balance between working independently and with a team.
• Ability to proactively and diligently follow up with teams.

What We Offer:

• Global maternity and parental leave
• Competitive benefits packages
• 25 days holiday, compassionate leave, wellness days, and flex days
• Access to online services for families and new parents
• Summer Fridays
• Diversity and Inclusion Board with 12 affinity groups
• Enterprise-wide employee discounts

Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.

Critical Mass is an equal opportunity employer.

The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.comandus.greenhouse-mail.io . We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.

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