Senior Engineer - PlatSec Cryptographic Trust

At F5, we strive to bring a better digital world to life. Our teams empower organizations across the globe to create, secure, and run applications that enhance how we experience our evolving digital world. We are passionate about cybersecurity, from protecting consumers from fraud to enabling companies to focus on innovation.

Everything we do centers around people. That means we obsess over how to make the lives of our customers, and their customers, better. And it means we prioritize a diverse F5 community where each individual can thrive.

The team provides services and support to F5 development teams in all phases of the Secure Development Lifecycle – including Secure code review, Pen-testing, Threat modeling and analysis, best development practices training, security testing and certifications, vulnerability response, and management.

The Senior Software Engineer will work closely with the Principal Engineer to design, implement, and maintain PKI and Post-Quantum Cryptography (PQC) solutions for enterprise-scale environments. This role focuses on integrating cryptographic systems, automating processes, and ensuring secure certificate lifecycle management while providing technical mentorship within the team.

• Assist in the design and deployment of PKI architectures and cryptographic solutions for F5 products and applications.
• Lead automation initiatives for PKI processes, including certificate issuance, renewal, and revocation, using tools and scripting languages.
• Integrate PKI services into cloud-native environments (AWS, Azure, Kubernetes), ensuring scalability and performance optimization.
• Support cryptographic operations, TLS protocol implementations, and certificate lifecycle management in collaboration with cross-functional teams.
• Provide mentorship and technical oversight to junior engineers on PKI-related tasks.
• Troubleshoot, monitor, and improve PKI systems, emphasizing availability and resilience.
• Stay updated on advancements in PKI and PQC technologies to recommend process improvements.

• Expertise in PKI systems design, cryptographic algorithms (RSA, ECC, PQC), and key management protocols.
• Proficiency with automation tools and scripting languages (e.g., Terraform, Python, Power Shell).
• Strong experience in securing cloud environments through cryptographic solutions (AWS, Azure, Kubernetes).
• Familiarity with security frameworks (NIST, ISO 27001) and PKI protocols (X.509, OCSP).

• Leadership in guiding junior developers on technical tasks.
• Analytical problem-solving in cryptographic and certificate management challenges.
• Collaborative skills to work within a cross-functional team environment.
• Strategic thinking and adaptability to emerging cryptographic trends.

Technical White Papers: Publication of research in cryptography, PKI, or PQC in renowned journals, conferences (e.g., IEEE, ACM, Black Hat, RSA

C).

Patents: Authored patents in cryptography, innovative PKI solutions, or other digital security technologies demonstrating original contributions to the field.

• Certified Cryptography Engineer (CCE) / Certified Cybersecurity Technician (CCT)
• Certified Information Systems Security Professional (CISSP)
• Certified Kubernetes Administrator (CKA)

• Bachelor's degree in Computer Science, Cybersecurity, Electrical/Computer Engineering, or a related field.
• Master’s degree in Cybersecurity, Cryptography, or a related field is highly desirable.

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The Job Description is intended to be a general representation of the responsibilities and requirements of the job. However, the description may not be all-inclusive, and responsibilities and requirements are subject to change.

The annual base pay for this position is: $ - $. F5 maintains broad salary ranges for its roles in order to account for variations in knowledge, skills, experience, geographic locations, and market conditions, as well as to reflect F5’s differing products, industries, and lines of business. The pay range referenced is as of the…