Sr. Infrastructure Security Engineer

United StatesRemotesenior

SecurityOtherDevOps & InfrastructureInfrastructure EngineerInfrastructure Security EngineerInfrastructure & Cloud

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Quick Summary

Overview

Your role in our mission We're looking for a Senior Infrastructure Security Engineer with a strong focus on cloud security, particularly within Google Cloud Platform (GCP).

Technical Tools

azuregcpgoogle-workspacepythonterraformci-cdcode-reviewnetworking

Your role in our mission

We're looking for a Senior Infrastructure Security Engineer with a strong focus on cloud security, particularly within Google Cloud Platform (GCP). The ideal candidate should have in-depth expertise in endpoint and data security in cloud environments, using GCP tools and technologies. As a vital member of our security team, you'll work across functions to proactively prevent, detect, and respond to threats against our cloud-based infrastructure. Join our expanding team of skilled security professionals dedicated to innovating and securing Prosper's cloud platforms, utilizing state of the art security tools for the benefit of our customers and employees.

Own cloud security across Google Cloud Platform (GCP) and Microsoft Azure, driving initiatives from design through execution

Reduce real risk by operationalizing CNAPP tooling like Wiz - cutting noise, prioritizing high-impact issues, and ensuring remediation lands

Embed security into infrastructure using Terraform and CI/CD, making controls scalable, consistent, and developer-friendly

Lead vulnerability management end-to-end, from triage to remediation tracking, partnering with engineering to ship fixes quickly

Strengthen data and endpoint security (DLP, EDR, identity, device posture) and reduce exposure across cloud environments

Improve detection and response by building and tuning detections in Google Chronicle and supporting incident response

Proactively identify and fix cloud misconfigurations (IAM, networking, firewalls, encryption) before they become incidents

Define practical security standards and runbooks that engineers can easily adopt

Act as a senior escalation point during security incidents, driving effective triage and resolution

Leverage AI tools responsibly to accelerate code review, triage, and security analysis while maintaining strong security guardrails

Mentor engineers and raise the overall security bar through collaboration and clear risk communication

Strong hands-on experience securing cloud environments in GCP and/or Azure

Deep understanding of cloud fundamentals: IAM, networking, logging, monitoring, and encryption

Proven ability to identify real risk vs. noise using CNAPP tools like Wiz

Experience with Terraform and security-as-code, including CI/CD integrations

Solid vulnerability management experience, including prioritization and driving remediation with engineering teams

Knowledge of data security (DLP, sensitive data discovery) and endpoint/identity platforms (Okta, MDM, Google Workspace)

Experience with SIEM tools like Chronicle, including detection engineering and incident support

Strong scripting/automation skills (e.g., Python) to reduce manual security work

Comfortable owning projects end-to-end in a highly collaborative environment

Strong familiarity with AI agents and tools, aligned with Prosper Tech's "forward-thinking but safe" approach to AI adoption

Understanding of common cloud attack paths and how security failures occur in real environments

Strong collaboration and communication skills, with the ability to explain risk clearly and drive practical, scalable fixes across cross-functional teams

A connected experience: We prioritize high-touch collaboration and flexibility. Whether you are working from our San Francisco or Phoenix offices or joining us as a fully remote team member, we provide the digital-first tools and intentional culture to keep you synced and supported

Invested in your future: A competitive salary and a 401(k) with a 5% company match to help you build long-term financial security

Holistic well-being: We provide the resources you need to thrive, from flexible time off and paid parental leave to an annual wellness allowance and comprehensive health coverage

Professional & personal growth: Take advantage of a suite of premium perks, including Udemy access, childcare assistance, pet insurance, and a bevy of additional savings through Beneplace

Recruiter Call: A brief screening to discuss your experience and initial questions.

Department Interview: Deeper dive into technical skills and project alignment with the Hiring Manager or team member.

Team/Virtual Interview: Meet team members for collaborative discussions, problem-solving, or technical exercises.

Final Round: Discussion with a department head/executive.