Dev/Null Security are a small group of cybersecurity SMEs with decades of experience defending high-value assets and systems against the world’s most advanced threats. We are dedicated to protecting organisations against evolving cyber threats, intent on delivering quality and value to our clients across architecture, engineering, consultancy, and PMO. We offer a dynamic work environment, opportunities for growth, and a commitment to excellence.
We are seeking a Junior F5 Automation Engineer to join our team and help drive the development, automation, and optimisation of F5 infrastructure across complex enterprise environments. This role is suited to someone who has hands-on experience in F5 technologies and a background in automation and DevOps tooling.
Key Responsibilities
* Design, develop, and automate solutions for F5 LTM, AWAF/ASM, and APM modules within large-scale, high-availability environments.
* Build, maintain, and enhance F5 APIs, enabling integration with automation pipelines and infrastructure-as-code workflows.
* Develop and maintain automation scripts using Python, Terraform, and Ansible to provision and manage F5 configurations and policies.
* Contribute to the design and implementation of CI/CD pipelines (Jenkins experience beneficial).
* Collaborate with Network, Security, and DevOps teams to ensure consistent configuration management, security posture, and performance optimisation.
* Provide expert-level troubleshooting and performance tuning across F5 environments.
* Document automation frameworks, configuration standards, and operational procedures.
* Hands-on experience in F5 development and automation within large, complex enterprise environments.
* Technical knowledge of F5 LTM, AWAF (Advanced WAF) / ASM, and APM modules.
* Experience building or integrating with F5 APIs.
* Proficient in Python scripting for network or infrastructure automation.
* Practical experience with Terraform and Ansible for Infrastructure-as-Code and configuration management.
* Good understanding of enterprise networking, load balancing, and application delivery concepts.
* Ability to work collaboratively across teams and communicate technical concepts clearly to non-technical stakeholders.
* Ideal candidates having graduates from BEng (Hons) Network Engineering and Cyber Security
* F5 Certified (e.g., 401/301A/303 certifications) or equivalent real-world experience.
* Experience with Git, version control workflows, and DevOps best practices.
* Exposure to cloud environments (AWS, Azure, or GCP).
* Familiarity with Jenkins pipelines or other CI/CD frameworks.
* Experience within large scale financial services organisations.
Personal Attributes
* Analytical and detail-oriented, with a problem-solving mindset.
* Comfortable working in dynamic, fast-paced enterprise environments.
* Passionate about automation, clean code, and continuous improvement.
Your Base
Whilst DevNull Security is a remote-first company, our consulting team will be required to travel to client sites, depending on project and customer needs.
We believe that a career in cybersecurity should be accessible to everyone. We actively welcome applicants from all walks of life, regardless of race, ethnicity, gender identity, age, sexual orientation, disability, neurodiversity, socioeconomic background, or any other aspect of identity.
As a growing company, we’re committed to fostering an inclusive, equitable, and accessible hiring experience. We proactively offer adjustments during application and assessment - tell us what you need.
#J-18808-Ljbffr