Software Security Engineer

Job Description

Arm's Vulnerability Research Tooling Team is looking for a Software Engineer to build our internal threat modeling platform that powers our security development lifecycle. You will help design, build, and maintain a service that enables engineers to create and evolve threat models more effectively.

Key Responsibilities

• Design, implement, and enhance core platform capabilities, delivering features that improve the creation, maintenance, and evolution of threat models.
• Help transition the platform into a production‑ready service with improved reliability, scalability, and maintainability.
• Collaborate with engineers and security teams to understand requirements, deliver practical solutions, and improve the overall user experience.
• Instrument observability and performance monitoring (metrics, dashboards) to ensure maximum throughput and reliability.
• Contribute to the longer‑term evolution of the platform and future feature development.

Required Skills and Experience

• Good coding ability in Python.
• Experience building or maintaining backend applications.
• Understanding of core software engineering practices including testing, debugging, version control, and code review.
• Exposure to CI/CD tooling and concepts such as GitLab CI or similar.
• Familiarity with containerized development and deployment, e.g., Docker.
• Familiarity with cloud environments, ideally AWS.
• Clear communication skills and ability to produce useful documentation.

Nice to Have Skills and Experience

• Exposure to threat modeling, application security, or secure development practices.
• Experience supporting internal engineering tools or platforms.
• Experience with web front‑end development.
• Experience with building AI tooling.
• Familiarity with infrastructure‑as‑code and deployment automation.
• Interest in security‑focused tooling and platform development.
• Experience using AI‑assisted software development tools, such as Codex or GitHub Copilot, to support development, debugging, and engineering productivity.

Accommodations at Arm

At Arm, we want to build extraordinary teams. If you need an adjustment or an accommodation during the recruitment process, please email accommodations@arm.com. To note, by sending us the requested information, you consent to its use by Arm to arrange for appropriate accommodations. All accommodation or adjustment requests will be treated with confidentiality, and information concerning these requests will only be disclosed as necessary to provide the accommodation. Although this is not an exhaustive list, examples of support include breaks between interviews, having documents read aloud, or office accessibility.

Equal Opportunities at Arm

Arm is an equal opportunity employer, committed to providing an environment of mutual respect where equal opportunities are available to all applicants and colleagues. We are a diverse organization of dedicated and innovative individuals, and don’t discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Hybrid Working at Arm

Arm’s hybrid approach to working is centred around flexibility, where we split our time between the office and other locations to get our work done. Within that framework, we empower groups and teams to determine their own particular hybrid working pattern, depending on the work and the team’s needs. Details of what this means for each role will be shared upon application. In some cases, the flexibility we can offer is limited by local legal, regulatory, tax, or other considerations, and where this is the case, we will collaborate with you to find the best solution.

Join us to build the foundational security platform that elevates visibility across Arm—apply today!

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