Senior Security Operations / Detection Engineer
RFS Group
·Today
- Salary
- $220k – $280k/yr
- Location
- San Francisco, California
- Workplace
- Onsite
- Type
- Full-time
- Department
- Engineering
- Seniority
- Senior
- Experience
- 5+ years
- Source
- RecruiterFlow
Description
We are the world’s most popular AI Gateway, trusted by companies like Adobe, Netflix, and NASA. We’ve grown ARR 6x in the last year to nearly $30M with a team of 20, and developers use us to call 100+ LLM providers through one API.
We’re looking for a Senior Security Operations / Detection Engineer to build and own detection and response across our infrastructure.
About the role
You’ll own what we can see and how we respond: log pipelines, detections, runbooks, alert handling, and incident coordination.
This is a hands-on individual contributor role reporting to our security lead. You’ll work directly with engineering to build and operate a detection and response function suited to a small company. San Francisco is preferred.
You’ll own your roadmap, build and run the tooling yourself, and lead incidents with incomplete information. Strong written communication is essential: you’ll coordinate independently with engineers, customers, and vendors across time zones.
Responsibilities
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Build and maintain security log pipelines and document coverage gaps.
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Build, validate, and tune detections across cloud infrastructure, CI systems, identity providers, and internal services.
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Manage detections as code, with clear documentation and ongoing maintenance.
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Write and maintain a runbook for every alert.
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Define severity-based alert response SLAs and own performance against them.
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Lead incidents from investigation and containment through recovery and follow-up.
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Produce clear incident timelines, reports, and recommendations.
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Measure and improve time to detect and contain threats.
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Automate detection of unexpected identity and access changes and drive remediation.
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Prioritize improvements based on risk and the needs of a small engineering organization.
What we’re looking for
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5+ years of relevant experience.
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Experience building a detection and response function from scratch.
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Hands-on experience building and tuning SIEM detections, preferably in Splunk, and managing them as code.
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Experience building log pipelines from cloud and CI systems.
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Strong familiarity with GitHub, Okta, and cloud audit logs, including their limitations.
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Experience leading incidents end-to-end and making containment decisions on partial information.
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Understanding of OAuth, personal access tokens, OIDC, and how attackers abuse authentication systems.
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Ability to write Python scripts to investigate incidents and automate security operations.
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Strong independent judgment and experience owning priorities with limited oversight.
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Clear communication under pressure and a willingness to surface bad news early.
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Availability to overlap with Pacific working hours.
Bonus points
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You helped build a detection and response function at a growing technology company.
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Experience in managed detection and response or incident response across multiple customer environments.
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Experience partnering closely with engineers in a small, fast-moving team.
Why join us?
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Own detection and response across the environment, from collecting logs to leading incidents.
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Build a function around the needs of a small company.
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Work directly with security and engineering to close the gaps you find.
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Set priorities and implement improvements yourself.