Senior Cloud Security Engineer

Core Responsibilities
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Defines and owns the technical architecture for CSPM tooling, automation platforms, and integration frameworks — ensuring they scale reliably across thousands of cloud accounts and multiple business units.
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Designs system-level patterns (event-driven pipelines, API contracts, data models) that other engineers build on — establishing the foundational approach for how security findings flow from detection through prioritization to remediation.
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Drives architectural decisions on platform extensibility, service boundaries, and data ownership — balancing near-term delivery against long-term maintainability as the program grows.
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Architects auto-remediation and shift-left enforcement systems that operate at org scale — designing for fault tolerance, auditability, and graceful degradation when upstream systems change.
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Evaluates and selects tooling, frameworks, and integration patterns that the broader team adopts — owning the technical standards for how CSPM systems connect to enterprise infrastructure (CI/CD, CMDB, ITSM, identity providers).
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Partners with engineering leadership across Platform, DevOps, SRE, and application security teams to align on shared interfaces, data contracts, and remediation workflows that reduce friction at organizational boundaries.
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Leads technical design reviews and mentors engineers on the team — raising the bar on code quality, system thinking, and operational readiness.
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Shapes the technical roadmap for AI-assisted security capabilities — evaluating where machine learning and LLM-based automation can meaningfully reduce risk or operational burden, and architecting the systems to deliver them.

Qualifications

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Minimum of five years related work experience required, with two years experience in cloud security preferred.
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Undergraduate degree in a related field or the equivalent combination of training and experience.
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Proficiency in Python, Go or TypeScript - production-grade, not just scripting
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Strong background in distributed systems concepts: event-driven architectures, async processing, API design, observability
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Hands-on experience across at least one of: AWS, GCP, Azure — at the level of org-wide account structures, landing zones, and cross-account security patterns and IAM at scale.
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Track record of influencing technical direction beyond your immediate team
Special Factors
Sponsorship
Vanguard is not offering visa sponsorship for this position.
About Vanguard
At Vanguard, we don't just have a mission—we're on a mission.
To work for the long-term financial wellbeing of our clients. To lead through product and services that transform our clients' lives. To learn and develop our skills as individuals and as a team. From Malvern to Melbourne, our mission drives us forward and inspires us to be our best.
How We Work
Vanguard has implemented a hybrid working model for the majority of our crew members, designed to capture the benefits of enhanced flexibility while enabling in-person learning, collaboration, and connection. We believe our mission-driven and highly collaborative culture is a critical enabler to support long-term client outcomes and enrich the employee experience.