Account Executive - Nullify

Black Nova Venture Capital; Sydney; On-site; AUD 120,000 - 180,000; Full time

Job summary

Nullify is hiring as one of its first commercial hires to own the full sales cycle for mid-market and enterprise security teams, from first conversation to signed contract.

You’ll run technical, consultative conversations with security leaders and work with founders and engineering to position a category still being defined.

As an early AE, you’ll build repeatable process and learn to scale the playbook—driving genuine discovery and credibility in AI-enabled security.

Qualifications

• Track record closing complex, technical B2B deals.
• Comfort selling to technical buyers.
• Founder energy: you want to build the process, not just work inside one that already exists.
• Genuine curiosity about security and how AI is changing it.

Responsibilities

• Own the full sales cycle for mid-market and enterprise security teams.
• Run technical, consultative conversations with security leaders.
• Partner closely with founders and engineering to shape how we position and sell a category.
• Build repeatable process as one of Nullify's first AEs — what you learn becomes the playbook.

Skills

Complex B2B deals

Security/Dev tools

Technical conversations

Founder energy

Job description

Nullify continuously allocates AI capacity toward the highest-impact product security work, maximizing outcomes from every engineer hour and every token spent.

You’ll be one of the first commercial hires at a company selling something genuinely new — not another scanner, a system that finds, proves, and fixes vulnerabilities on its own. That means real discovery, real technical credibility, and real conviction.

What You'll Do

• Own the full sales cycle for mid-market and enterprise security teams, from first conversation to signed contract.
• Run technical, consultative conversations with security leaders who've seen every vendor pitch and are skeptical by default.
• Partner closely with founders and engineering to shape how we position and sell a category that's still being defined.
• Build repeatable process as one of Nullify's first AEs — what you learn becomes the playbook.

What You Bring

• A track record closing complex, technical B2B deals, ideally in security or developer tools.
• Comfort selling to technical buyers — you can hold your own in a conversation about how the product actually works.
• Founder energy: you want to build the process, not just work inside one that already exists.
• Genuine curiosity about security and how AI is changing it.