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HR Business Partner

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  • Job
    Mid Level
  • People, HR & Administration
  • London


  • Minimum 3 years of experience as a HRBP or HR Generalist of cross functional resources in a large and/or matrixed organization.
  • Deep practice in communication with HR Teams, and employees through all levels of an organization
  • Demonstrated ability to establish trust and inspire confidence across various levels of an organisation
  • Proven track record of driving pragmatic decision-making in a collaborative, fast-paced, team-based environment
  • Strong leadership skills, including the ability to lead, delegate, motivate, mentor, and build high-performing teams
  • Exceptional ability to handle conflict, challenging situations, and work effectively with diverse working styles
  • Strategic and tactical expertise in organizing and structuring operational activities
  • Proficient in mediation, negotiation, and delivering impactful presentations
  • Nice to Haves:
  • Extensive ER experience


  • Partner with Global HR Team to develop and execute cutting edge HR strategies that align with our goals
  • Support implementing new processes and procedures that will help us scale as an organisation
  • Ignite the potential within our employees through effective performance management programs that drive growth and development
  • Be the go-to HR expert for your client group, providing guidance and support to managers on all HR-related matters
  • Build bridges as you handle employee relations with finesse, resolving conflicts, managing disciplinary actions, and overseeing grievance procedures
  • Be the architect of an inclusive and positive work atmosphere that boosts employee engagement and satisfaction levels
  • Collaborate across talent pillars to support the employee experience while working to grow and simplify global programming
  • Stay ahead of the curve by keeping up with industry trends and best practices.


What is the location of the HR Business Partner role?

The HR Business Partner role is located in London.

How long is the contract for the HR Business Partner role?

The contract for the HR Business Partner role is for 6 months to cover a maternity leave.

What are some key responsibilities of the HR Business Partner?

Some key responsibilities of the HR Business Partner include implementing innovative HR strategies, driving positive change, shaping the organization's success, and fostering a thriving workplace culture.

What specific areas will the HR Business Partner focus on?

The HR Business Partner will focus on implementing change in performance management, reimagining the employee experience, and increasing engagement scores.

What kind of impact can the HR Business Partner make in this role?

The HR Business Partner can make a lasting impact by driving positive change, implementing innovative HR strategies, and empowering employees to create a thriving workplace culture.

We design experiences for brands we love. Anywhere we go, digital is our home. Canada + The World, Since ’96.

Marketing & Advertising
Founded Year

Mission & Purpose

Critical Mass is a team of 1,500 inspired folks based in 12 offices around the world, providing full-service digital capabilities for the greatest brands on Earth. Our secret sauce is our uncompromising design standards, our relentless focus on customers, and an ability to put powerful new technologies to work for our clients. We work with the best—Apple, Nike, Diageo, Airbnb, BMW, BNY Mellon, Johnson & Johnson, and many more—brands who strive for connected digital ecosystems and unparalleled experiences. We help them get there by gaining deep insight into their consumers and orchestrating data, AI, design, media, and tech stacks around human stories. We’re a global agency founded in Canada, but digital is our home. If you know us, then you know we’re a special, quirky place that attracts big talent and tiny egos. (We actually give out a “so f-n nice” award—lots of them). But just because we’re friendly doesn’t mean we’re not a force to be reckoned with. We’re driven. Relentless. And we live our values. We’re Critical Mass, but our friends call us CM. Please call us CM!