current openings
Current opening in Buenos Aires
Project Manager, HR Integration
Buenos Aires

MightyHive is a new breed of media consultancy that partners with global brands and agencies seeking transformative marketing results in a time of massive disruption and opportunity. Recognized as a global leader in advanced marketing and advertising technologies, MightyHive provides consulting and services in the areas of media operations and training, data strategy and analytics. 

The company is headquartered in San Francisco, with teams in 19 countries and 24 cities around the world. 

In 2018, MightyHive merged with S4Capital plc (SFOR.L), a new age/new era digital advertising and marketing services company established by Sir Martin Sorrell in 2018.

Reporting to and partnering closely with the Director, you will work with the global S4 HR team, partner with business leaders and departments across a variety of HR integration projects. As a Project Manager, you will act as the central point of contact for various projects while working cross-functionality to build and execute on project plans. 


  • Work directly with HR teams across S4C on multiple projects impacting the success of the S4 integration  
    • Facilitate regular project team meetings 
    • Lead team meetings to effectively draw out member ideas and concerns while keeping the team focused on objectives 
    • Identify and recommend solutions to streamline processes for an integrated HR team
  • Create, execute, and manage comprehensive project plans
    • Identify & manage deliverables, priorities, & resourcing needs
    • Develop & deliver on timelines, roadmaps & schedules
  • Communicate effectively and proactively on ownership of tasks, project risks and issues 
  • Report regularly on overall status to management and key stakeholders 
  • Partner with the HR Change Manager to develop change plans and ensure employees embrace, adopt and use the solution associated with the project.   
  • Demonstrate effective teamwork and display a willingness to direct other team members in driving overall project progress 
  • Be flexible and prepared to handle changing project priorities and needs 
  • Partner with the PMI team to execute on the integration strategy of future companies acquired by S4 Capital

Skills & Qualifications 

  • 3-5 years of HR experience 
  • Familiarity with project management approaches, tools and phases of the project lifecycle
  • Exemplary time management and organizational skills
  • Strong analytical and operational capabilities
  • Ability to work effectively to complete projects from strategy to execution
  • Comfort working in ambiguous environment 
  • Ability to quickly adapt to changing priorities 
  • Flexible, versatile and driven to obtain new skills and scale knowledge to take on uncharted territory
  • A “do whatever it takes” working attitude
  • Ability to navigate across culture differences to ensure communication is clear given language and culture barriers
  • Resilient and tenacious with a propensity to persevere


What do we offer you?

  • Teamwork culture, with many professional opportunities and in a family environment
  • Health insurance
  • Training
  • English lessons 
  • 3 weeks holiday
  • Cell phone line
  • Flexible WFH Policy
  • Work Balance Policy
  • Compensation Policy
  • Excellent work environment, relaxed, celebration of special dates, etc.