Senior HR Business Partner

About the Role

We’re looking for a Senior HR Business Partner (Org Effectiveness) to join us on a contract / freelance basis and help leaders build high-performing, accountable teams during an important phase of growth.

This is a strategic, high-impact assignment — not a traditional operational HRBP role. You’ll act as a trusted advisor to senior leaders, diagnosing organisational challenges, coaching managers, and driving focused people interventions that unlock measurable business impact.

You’ll partner with a dedicated client group (R&D or GTM/G&A), helping translate business challenges into practical, high-leverage people solutions.

Things you will do:

Strategic Partnership & Organisational Effectiveness

• Partner with leaders to drive team effectiveness and sustained high performance

• Diagnose organisational friction and identify root causes of performance challenges

• Advise on organisation design, role clarity, and structural decisions

• Support workforce planning and people budgeting with divisional leadership

Leadership Coaching & Performance

• Coach managers to strengthen feedback habits and performance conversations

• Guide leaders through performance management with clarity and consistency

• Advise on headcount trade-offs and prioritisation decisions

Data-Driven People Strategy

• Use people data to identify patterns, risks, and intervention opportunities

• Translate insights into practical action plans

• Embed data-informed decision-making into leadership discussions

Change & Transformation

• Lead or support cyclical people initiatives (performance reviews, engagement surveys)

• Support organisational change and transformation initiatives

• Ensure clear communication and decision cascade across teams

Cross-Functional Collaboration

• Partner closely with People Operations to establish clear ownership boundaries

• Balance operational compliance with strategic intent

• Support employee engagement initiatives that drive cultural impact

What you already bring to the table:

• Strong experience as an HR Business Partner in fast-paced or scaling environments

• Proven ability to advise senior leaders on organisational performance and design

• Experience supporting transformation, change, or restructuring initiatives

• Commercially minded with strong business understanding

• Excellent problem-solver who identifies root causes, not just symptoms

• Confident coach who can influence and challenge leaders constructively

• Organisational design and team structure optimisation

• Change management and transformation execution

• Working knowledge of employment law (Europe, UK and/or US)