Senior Legal Counsel (m/f/d) - Corporate & Commercial

As Senior Legal Counsel, you will be the main legal contact for OnZero and work closely with our CEO and CFO, leadership team and colleagues across the business.

You will be involved whenever important contracts are negotiated, new partnerships are formed, corporate decisions are prepared or legal risks need to be assessed. Your role is not simply to explain what is legally possible. We are looking for someone who understands the commercial objective, identifies the real risks and helps the business find a practical way forward.

On a typical matter, you may draft and negotiate the agreement yourself, discuss the commercial details with the responsible team, advise management on the available options and coordinate an external law firm where specialist support is needed. You will take ownership of legal topics from the first question through to the final signature and implementation.

Because OnZero operates internationally and is continuing to grow, the legal topics will be broad. They will include corporate law, commercial contracts, governance, compliance, financing and cross-border projects. You should therefore be comfortable working independently, making clear recommendations and dealing with matters that do not always come with a ready-made process.

As the company grows, the role can develop into a General Counsel position with wider responsibility for legal strategy, governance, compliance and the future legal team.

Responsibilities and Duties:

• Act as a trusted legal advisor to the CEO and CFO, leadership team, shareholders and other senior stakeholders on strategic and business-critical decisions.

• Take ownership of general corporate law matters across the OnZero group, including corporate housekeeping, shareholder resolutions, management decisions, powers of attorney, group structures and corporate governance.

• Draft, review and negotiate complex commercial agreements in German and English, including customer agreements, supplier and procurement contracts, technology and IT agreements, service agreements, cooperation agreements, confidentiality agreements and other strategic contracts.

• Provide practical legal support for OnZero’s physical AI data center business, infrastructure projects, customer relationships and international expansion activities.

• Support corporate transactions such as financing rounds, investments, restructurings, joint ventures, acquisitions, disposals and other M&A related matters.

• Conduct and coordinate legal due diligence processes and ensure that identified risks are clearly communicated to the relevant decision-makers.

• Advise management on legal risks, liability matters and corporate governance while developing solutions that are legally sound and commercially realistic.

• Establish and continuously improve contract templates, internal approval processes, signing authorities, legal policies and contract-management standards.

• Coordinate legal matters across Austria and OnZero’s international markets, working closely with local management, external advisors and specialist law firms. Select, instruct and manage external legal counsel, including defining the scope of work, monitoring quality, controlling costs and ensuring that external advice remains commercially relevant.

• Support the development and implementation of the company’s compliance framework in cooperation with management and the relevant internal functions.

• Advise or coordinate external advice on related matters such as employment law, data protection, competition law, regulatory questions and dispute resolution.

• Manage potential disputes and pre-litigation matters and coordinate external counsel in connection with court proceedings, administrative proceedings or major claims.

• Monitor relevant legal and regulatory developments and assess their potential impact on OnZero’s business and expansion plans.

• Help build the internal legal function as the company grows and support, mentor and develop future junior legal team members.