Hydrosat is an Earth observation company delivering thermal infrared satellite imagery and data analytics to help solve the world's most critical resource challenges - from precision agriculture and food security to water management and climate resilience. With a growing constellation of satellites and a team of ~90 across Luxembourg, the Netherlands, and the United States, we are at a pivotal stage of commercial scale-up.

We are looking for an experienced Operations & HR Manager to take ownership of our day-to-day HR operations and office management in Luxembourg. This is a hands-on, broad-scope role at the heart of Hydrosat's European hub - ideal for someone who thrives in a dynamic startup environment, can operate with a high degree of autonomy, and is ready to step into a manager-track position.

You will work closely with the Senior Operations & HR Manager, the CCO, and global People Operations to deliver a seamless employee experience across the employee lifecycle - from onboarding and compliance to office coordination and HR policy execution.

Key Responsibilities

HR Operations

• Independently manage day-to-day HR administration across the employee lifecycle: onboarding, offboarding, contract management, and HRIS (Rippling) maintenance.

• Ensure compliance with Luxembourg labour law and applicable employment regulations; serve as first point of contact for employee queries.

• Support employee relations matters, escalating complex cases to the Senior Operations & HR Manager and CCO as appropriate.

• Coordinate work permit and visa processes for new hires in collaboration with external immigration advisors.

• Maintain and improve HR processes, templates, and documentation in line with Hydrosat's policies.

• Drive the Luxembourg onboarding experience for new joiners, ensuring a smooth and professional first-day-to-first-month journey.

Office & Operations Management

• Serve as the primary point of contact for the Luxembourg office (15 rue Bender, Luxembourg City), managing day-to-day operations, vendor relationships, and facility matters.

• Oversee office supplies, equipment, and space planning; coordinate with IT and Finance as needed.

• Manage reception and visitor experience; handle incoming correspondence and office logistics.

• Act as the operational backbone for in-person events, team meetings, and site visits at the Luxembourg office.

Cross-functional & Leadership Support

• Collaborate closely with the Senior Operations & HR Manager EU and CCO on HR projects, policy rollouts, and People Team initiatives.

• Support talent acquisition coordination - liaising with recruiters, scheduling interviews, and managing candidate communication where needed.

• From time to time, support CCO requests either directly or in coordination with the Senior Operations & HR Manager EU

• Contribute to People Team OKRs and operational reporting.

• 4–7 years of experience in HR operations, people operations, or a combined HR/office management role; prior experience in a startup or scale-up environment strongly preferred.

• Solid understanding of Luxembourg employment law and HR compliance requirements.

• Proven track record of managing HR processes independently with minimal supervision.

• Hands-on experience with HRIS platforms (Rippling experience a plus).

• Excellent organisational skills and attention to detail - you keep multiple moving parts on track without dropping anything.

• Professional-level English required; Luxembourgish, French, or German is a strong asset given our multilingual office environment.

• Comfortable working in a small team where scope evolves quickly and ownership is expected from day one.

Nice to Have

• Experience supporting immigration/work permit processes in Luxembourg.

• Exposure to recruitment coordination or ATS systems (Recruitee/Tellent).

• Background in the technology, aerospace, or deep-tech sector.

• Experience coordinating across multiple European office locations.

Benefits

• Competitive compensation package

• Stock options to share in Hydrosat’s long-term success

• Fast-moving, mission-driven startup environment with real ownership

• Hybrid work model with flexibility

• EU visa sponsorship available when required

• Attractive Luxembourg tax advantages for relocators + relocation bonus

• Meal vouchers included

• Living and working in Luxembourg - explainer for newcomers

  • International Schooling, Transport, Quality of Life

  • Testimonials