Principal Cybersecurity Developer

Summary

Join DEFEND as a Principal Cybersecurity Developer and play a hands-on role in designing, building, and delivering advanced cybersecurity applications. Lead the development of secure, scalable solutions, contribute high-quality code, set technical direction for complex security projects, and guide the Platform Engineering team. Translate challenging security needs into practical, high-quality outcomes. This role requires collaboration with stakeholders and cross-functional teams. DEFEND offers a people-first culture with flexible working arrangements and opportunities for professional development. The company is experiencing phenomenal growth and offers a chance to make a real difference in a business-centric cybersecurity organization.

Requirements

• 10+ years in technology roles, with at least 3+ years in cybersecurity and leading complex security-focused development projects
• Proven experience designing and implementing secure applications using multiple programming languages (C#, Java, Python, Go)
• Deep knowledge of security vulnerabilities, threat modelling, and mitigation techniques
• Experience with designing and implementing API integrations between security tools and platforms
• Practical experience with cloud security across major platforms (AWS, Azure, GCP)
• Advanced knowledge of authentication systems, cryptography, and access control mechanisms
• Experience with security testing tools and methodologies (SAST, DAST, penetration testing)
• Familiarity with CI/CD pipelines incorporating security practices
• Understanding of regulatory compliance requirements (e.g., PCI DSS, GDPR)
• Strong communication skills with the ability to translate technical requirements into clear outcomes for customers
• A collaborative mindset with the ability to mentor and guide other developers in secure coding and cybersecurity practices

Responsibilities

• Lead the design and implementation of advanced cybersecurity applications and secure systems
• Write and review high-quality, secure, and maintainable code
• Define and maintain security and development standards, ensuring all solutions align with industry best practices
• Translate complex security requirements into technical specifications and working solutions
• Mentor developers on secure coding practices and perform code reviews
• Collaborate with stakeholders and cross-functional teams to design and deliver integrated security solutions

Preferred Qualifications

Relevant cybersecurity certifications (e.g., CISSP, CSSLP) are desirable

Benefits

• Flexible working arrangements are available to suit your lifestyle
• Continuous learning: You’ll develop the mindset and skills to navigate whatever comes next
• Success as defined by you: We’ll provide the tools and flexibility, so you can make a meaningful impact, your way
• Mentors: You’ll be joining a team of truly passionate and highly skilled individuals who are at the top of their game and who enjoy imparting their knowledge and experience to others
• Opportunity: Progress into other exciting roles across DEFEND