HR Generalist

ABOUT US Harmattan AI is a next-generation defense prime building autonomous and scalable defense systems. Following the close of a $200M Series B, valuing the company at $1.4 billion, we are expanding our teams and capabilities to deliver mission-critical systems to allied forces. Our work is guided by clear values: building technologies with real-world impact, pursuing excellence in everything we do, setting ambitious goals, and taking on the hardest technical challenges. We operate in a demanding environment where rigor, ownership, and execution are expected. ABOUT THE ROLE As HR Generalist, you are the go-to HR contact for managers and teams in Crissier and Zurich. You turn company priorities into concrete HR actions: contract administration, onboarding, development, employee relations and compliance with Swiss employment law. RESPONSIBILITIES Manager & Employee Partnership - Work in close collaboration with R&D management to support them in the design of the organization - Act as the single HR contact for Switzerland: present daily in Crissier, and a reliable remote partner for Zurich with regular visits - Give managers concrete, operational HR answers grounded in Swiss law, and address employee concerns promptly - Communicate with the teams with pedagogy to support and explain the organization Stay aligned with the Paris HR team and group policy while remaining locally compliant Local Compliance & Employment Law - Own compliance with Swiss employment law across the employee lifecycle (contracts, probation, working time, leave, termination) and adapt group contracts and HR policies to Swiss requirements - Manage relations with cantonal labor and migration authorities (Vaud and Zurich): filings, registrations, inspections - Handle employee representation obligations as headcount grows and keep leadership ahead of regulatory change Payroll & Social Declarations - Own the monthly payroll cycle with our provider and Finance: validate variable inputs (absences, overtime, bonuses, joiners, leavers) and cross-check payslips - Ensure timely social and tax declarations and manage benefits (health, accident, pension) HR Operations & Personnel Administration - Manage individual employee situations end to end: disciplinary procedures, conflict resolution, sensitive cases - Handle personnel administration (contracts, amendments, files, certificates), run absences in HiBob and produce HR metrics - Own work permit applications (G, B,L) for foreign nationals joining Crissier and Zurich: file with the DGEM, follow up until approval, and handle related cantonal and residence formalities Onboarding, Offboarding & Mobility - Work with Talent Acquisition, who own recruitment: take over once an offer is accepted and run contracts, administration and onboarding for both sites - Handle offboarding with correct Swiss formalities and clear handover CANDIDATE REQUIREMENTS - Master's degree or equivalent in HR, law, management or a related field - HR Manager certificate (Certificat de Gestionnaire RH, HRSE) - 10+ years in generalist HR or HR Business Partner roles, ideally in an SME or scale-up - Strong knowledge of Swiss employment law and social insurance; experience with work permits (G, B, L) is a plus Skills - Credibility with managers and engineers; able to advise and decide - Rigor, confidentiality, autonomy and a taste for building processes - Comfort with an HRIS (HiBob) and reporting tools Languages - Fluent French and English; Swiss-German is an asset for Zurich Nice to have - Experience in defense, aerospace or deeptech, and with multi-site teams We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.