We are looking for a Principal Cybersecurity Engineer to lead and scale the security function at BTC Markets - a digital asset exchange that’s ISO 27001 certified and committed to best-in-class security, governance, and resilience. 

As our security leader, you will own our end-to-end tactical cybersecurity across infrastructure, product, blockchain systems, and compliance. You will be both strategic and hands-on: leading initiatives that protect company assets, data, and infrastructure, while enabling safe and scalable growth in a high-trust environment. 

This is an opportunity to shape the security culture of a growing fintech, work closely with executives and engineering, and build innovative controls in a blockchain-native context. 

We are a secure, reliable platform that supports over 325,000 Australians, with more than $23 billion traded in cryptocurrencies and digital assets. We offer a flexible, inclusive, and dynamic work environment where our team members make a significant impact every day. We value a forward-thinking culture where innovation and growth are encouraged. 

What You'll Do (but not limited to): 

• Help define and execute a company-wide security strategy that aligns with regulatory obligations and business objectives. 
• Lead and continuously evolve our ISMS program, including ownership of our ISO 27001 and all related audits, risk assessments, and policies. 
• Oversee the security of the infrastructure, application, network and cloud services. 
• Guide cryptographic strategy, including security controls for blockchain-based applications and smart contracts, secure key management and encryption protocols.  
• Collaborate with engineering and product teams to embed security best practices into our SDLC - including threat modelling, secure code reviews, and automation. Improve and maintain security incident response and business continuity plans. 
• Lead security investigations, root cause analyses, and remediation efforts. 
• Build robust detection and monitoring capabilities to respond to internal and external threats. 
• Monitor evolving threats in digital assets and blockchain and proactively enhance defences. 
• Grow a security-first culture across the business. 

Who You Are: 

• 8+ years’ experience in security engineering (fintech, blockchain, or regulated industries a plus). 
• Tertiary degree in Computer Science, Cybersecurity, or related field (or equivalent experience). 
• Relevant certifications (CISSP, CISM, OSCP, CCSP, etc.).
• Hands-on expertise in infrastructure, cloud security (Azure, AWS), and secure networking. 
• Strong background in application security, secure software development, and DevSecOps. 
• Deep knowledge of cryptography, key management, and secure financial systems. 
• Experience with compliance frameworks (ISO 27001, SOC 2, GDPR, NIST CSF) and financial regulations (AML/CTF, data protection). 
• Skilled at communicating complex risks to both technical teams and senior executives. 
• Proven ability to lead cross-functional projects and security initiatives. 
• Experience in security audits, threat assessments, vulnerability management, and pen testing coordination. 
• Exposure to blockchain infrastructure or crypto-native security. 
• Familiarity with governance structures and global regulatory environments. 
• Long term aspiration of leading and growing the security function of the business. 
• Full working rights in Australia. 

Why Join Us? 

• Flexible and hybrid work options to support your work-life balance. 
• Be part of an exciting and rapidly growing blockchain company. 
• Collaborate with a talented and passionate team in a supportive environment. 
• Enjoy zero trading fees on our platform. 
• Access monthly health and wellbeing allowances. 
• Extra leave days – wellbeing leave, volunteering leave, and more. 
• Participate in regular company catch-ups and social events. 

If you are ready to take the next step in your career and make a real difference in the world of cybersecurity, apply now and join our innovative team!