Sr. Infrastructure Security Engineer
Prosper Marketplace
Other Engineering
United States
USD 138k-190k / year
Your role in our mission
How you'll make an impact
- 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
Skills that will help you thrive
- 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
Resources to help you prosper
- 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
Interview Process
- 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.
Prosper introduced U.S. consumers to an innovative approach to personal finance as the first peer-to-peer lending platform in the country. Since 2005, Prosper has helped over 2 million customers achieve financial well-being through a comprehensive suite of digital personal finance products.
Prosper’s flagship personal loan* marketplace continues to offer unique value for both borrowers and investors, while the Prosper® Card¹ provides essential access to credit and flexibility for those managing their financial journey. Guided by its mission to advance financial well-being, Prosper is dedicated to helping people thrive by meeting people where they are with simple, trusted, and affordable financial solutions. Learn more at www.prosper.com.
- Diversity expands opportunities
- Collaboration creates better solutions
- Curiosity fuels our innovation
- Integrity defines all our relationships
- Excellence leads to longevity
- Simplicity guides our user experience
- Accountability at all levels drives results
*All personal loans are made by WebBank.
¹The Prosper® Card is an unsecured credit card issued by Coastal Community Bank, Member FDIC, pursuant to license by Mastercard® International.
138000 - 190000 USD a year