Human Resources Manager

We are looking for a highly capable, hands‑on HR Manager, US & Global HR Business Partner for Sales to help scale a high‑growth, global AI software company. This is a dual‑impact role. First, you will serve as the primary People lead for our US‑based employees across all functions. Second, you will act as the global HR Business Partner for our Sales organization, supporting leaders and teams across the US, UK, Europe, and APAC. This role is ideal for someone who combines strong operational HR judgement with business partnership, talent acquisition, coaching, and organisational scaling experience. You will support every stage of the employee lifecycle, from hiring and onboarding to manager development, performance management, employee relations, culture, and compliance. As we continue to build a world‑class, AI‑native company, this person will be a trusted partner to leadership and a key driver of how we attract, retain, develop, and scale exceptional talent. Key Responsibilities HR Business Partnership & Leadership Advisory Serve as the primary HR Business Partner for all US‑based employees across departments. Act as the global HRBP for the Sales organization, supporting revenue leaders and teams across multiple regions. Partner closely with Sales leadership to align people strategy with growth priorities, talent needs, performance goals, and organisational design. Provide coaching and guidance to executives and managers on leadership, team effectiveness, performance, communication, and conflict resolution. Support workforce planning, succession planning, role design, and team scaling in a fast‑paced commercial environment. Partner with global People colleagues to ensure consistency across regions while adapting to local business and cultural needs. Lead and support performance management cycles, ensuring feedback is clear, actionable, and aligned with company goals. Talent Acquisition & Onboarding Manage full‑cycle recruiting for US‑based roles and global Sales positions, from intake through offer acceptance. Partner with hiring managers to define role requirements, ideal candidate profiles, interview plans, and selection criteria. Source, engage, and close high‑calibre talent in competitive AI, SaaS, software, and government technology markets. Ensure a high‑quality candidate experience that reflects the company’s pace, ambition, and culture. Build structured, scalable onboarding programmes that help new hires ramp quickly into the company, product, culture, and sales methodology. Partner with Sales Enablement and leadership to ensure commercial hires understand the company’s value proposition, operating model, and performance expectations. Employee Relations, Compliance & HR Operations Serve as the first point of contact for US employee relations matters, handling issues with sound judgement, empathy, discretion, and compliance. Maintain strong knowledge of US employment law and ensure local policies, practices, and employee documentation remain compliant. Support global HR operations and administrative processes in partnership with the broader People team. Help develop, implement, and maintain policies that support a high‑performance, values‑driven culture. Support compensation, promotions, organisational changes, and employee lifecycle processes in partnership with leadership and People Operations. Where relevant, support HR processes connected to US government, cleared, or regulated business environments. Culture, Engagement & Organisational Effectiveness Help shape a high‑performance, mission‑driven culture suited for a fast‑scaling AI company. Develop local and global engagement initiatives that strengthen connection, accountability, manager effectiveness, and employee experience. Partner with leaders to reinforce company values, operating principles, and performance expectations. Support change management as the company scales globally and expands its US presence. Identify organisational friction points and proactively recommend practical, scalable solutions. Help build the People infrastructure needed for a world‑class, enterprise‑grade AI software company. Required Experience & Skills 5+ years of HR experience in a high‑growth software, SaaS, AI, defence technology, or advanced technology company. Experience serving as an HR Business Partner or HR Manager in a global, multi‑site environment. Strong understanding of the US employment environment, including employee relations, compliance, performance management, and HR operations. Proven ability to partner with Sales or go‑to‑market organisations in a fast‑paced, metrics‑driven environment. Experience managing full‑cycle recruiting, including sourcing, interviewing, stakeholder alignment, offer negotiation, and closing candidates. Strong coaching skills with experience advising executives, managers, and emerging leaders. Ability to operate strategically while remaining hands‑on and execution‑oriented. Strong judgement, discretion, and communication skills. Comfort working across time zones with global teams and culturally diverse stakeholders. Ability to work from the Washington, DC office 3 days per week. Preferred Qualifications Experience supporting global Sales teams across the US, UK, Europe, and APAC. Experience in an AI, agentic AI, data intelligence, SaaS, cybersecurity, defence technology, or government technology company. Experience supporting a company with US government customers or regulated operating environments. Experience working with organisations that hold or are pursuing a Facility Clearance, including familiarity with cleared operations, security‑sensitive hiring, or FOCI‑related considerations. Experience recruiting candidates with active or prior US security clearances. Bachelor’s degree in Human Resources, Business Administration, Organisational Psychology, or a related field. SHRM‑CP, SHRM‑SCP, PHR, or SPHR certification preferred. What Success Looks Like In the first 6–12 months, this person will have: Established themselves as a trusted People partner to US employees and global Sales leadership. Improved the quality, speed, and consistency of hiring for Sales and US‑based roles. Created a stronger onboarding experience for new hires. Helped managers improve performance management, coaching, and team effectiveness. Strengthened HR compliance, policies, and employee relations processes in the US. Supported the scaling of a high‑performance global revenue organisation. Helped build the foundation for a world‑class People function inside a fast‑growing AI company. Why Join Us This is an opportunity to join a fast‑growing global AI software company at a pivotal stage of scale. You will help build the People foundation for a company operating at the intersection of AI, data, intelligence, and mission‑critical decision‑making. Your work will directly influence how we hire, develop, and retain exceptional talent as we expand our US presence and scale our global revenue engine. We offer a collaborative, ambitious, and high‑impact environment where your voice matters, your work is visible, and your impact will be felt across the company. Work Model: Hybrid, 3 days per week in office Reports to: Senior Vice President, People #J-18808-Ljbffr Windward