HR Business Partner (80–100%) Are you an experienced HR professional who thrives in a fast-growing tech environment? Do you enjoy working hands-on while thinking strategically? Are you self-driven, full of ideas, and motivated to actively shape a better workplace together with the business? At Open Systems, we are passionate professionals who care deeply about what we do and we are looking for someone who truly loves HR and knows their craft. Your Mission As a HR Business Partner, you will take full ownership of the employee lifecycle across multiple locations (CH, Germany, UK, NL, US). You will act as a trusted advisor to leaders and employees, partnering closely with the business to drive performance, engagement, and sustainable growth. You will collaborate with the CHRO and the HR team, but you will also independently lead initiatives, challenge the status quo, and bring new ideas to the table. This role is both strategic and hands-on. We are looking for someone who is not afraid to roll up their sleeves. Your Responsibilities Strategic HR Business Partnering Act as a trusted sparring partner for leaders on all people-related matters Drive organizational development, team effectiveness, and performance management Coach managers on leadership, employee relations, and complex HR cases Full Employee Lifecycle Ownership Develop recruitment strategy and be responsible for hiring Own and continuously improve onboarding to create an outstanding employee experience Manage employee relations cases with confidence and sound judgment Oversee performance, development, compensation, and retention processes Lead professional and compliant offboarding processes Operational Excellence Maintain and further develop HR policies, processes, and documentation Drive HR projects and initiatives (e.g., engagement, learning & development, diversity & inclusion) Supports HR operations including payroll preparation and compliance coordination Your Profile Several years of experience as an HR Business Partner, ideally in a fast-paced tech company Proven experience managing the full employee lifecycle independently Strong business acumen and the ability to balance strategic thinking with hands-on execution Confident in advising and challenging stakeholders at different seniority levels Self-driven, pragmatic, and solution-oriented Passionate about building strong teams and creating a positive employee experience Experience in an international environment is a plus Fluent in English; German is a strong advantage HR Swiss education is a plus What We Offer: Want to join a team that enjoys making secure connectivity simple for our customers? You’ll be among people who believe in: Caring PASSIONATELY about keeping our customers safe – We’re dedicated to solving problems. Whatever it takes. Thinking UNCONVENTIONALLY to stay ahead – The world never fails to surprise us. So let’s surprise it first. Doing the hard work to make things SIMPLE – Craft and hone something that delights in its simplicity. Working COLLABORATIVELY to build success – The power of the team will always make us faster and better. As a testament to this, Open Systems has been recognized as an outstanding place to work. You’ll be surrounded by smart teams who enrich your experience and provide opportunities you will need to develop your skills and advance your career. We look forward to receiving your online application (please note that you need to compress your application into two attachments). Only direct applications will be considered. About Open Systems Open Systems is a leading provider of native Managed SASE solutions, converging network and security functions on a cloud-native platform. Founded in 1990, the Swiss cybersecurity company, headquartered in Zurich, supports businesses and organizations in more than 180 countries with a holistic, customer-centric service model that guarantees 24x7 expert support. The combination of an innovative platform, integrated solutions, and excellent service ensures secure, reliable, and worry-free network operations – even within the complex IT infrastructures of global manufacturing companies and NGOs.