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Five9

Security Engineer

Five9 · United States (Remote)

Posted about 2 months ago

or apply directly on Five9's site. We never take the application ourselves.

Is this posting real?

This role has been open
61 days
Five9's roles stay open a median of 80 days
Reposted
No
Salary listed
No
0% of Five9's roles list one
Ghost-job risk at Five9
high
123 stale, 4 reposted of 124 open
Hiring momentum
210 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-10-22

Measured from postings appearing on and disappearing from Five9's own greenhouse board since 2026-08-03. Full hiring picture for Five9.

About this role

The Security Engineer role at Five9 involves managing incident response, detection engineering, and automation within a heavily AI-enriched triage pipeline. Responsibilities include writing and tuning detection logic, building workflows to automate responses, and contributing to threat intelligence and hunting initiatives. The position requires coding skills and a proactive approach to problem-solving, with a focus on delivering solutions rather than managing tickets.

Our read on this posting3.2out of 5
benefits
3/5
freshness
4/5
career value
4/5
role clarity
5/5
pay transparency
0/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Five9 as an employer.

What you need

  • Hands-on security operations experience, including detailed incident walkthroughs.
  • Proficiency in at least one scripting language (Python or equivalent).
  • Working knowledge of detection logic, log pipelines, and modern telemetry sources: EDR, identity, cloud, network, and SaaS.
  • Ability to define and build solutions for ambiguous problems.
  • Clear written communication skills for incident timelines, design notes, and postmortems.

Nice to have

  • GCP and/or AWS experience, including cloud logging, IAM, and cloud-specific failure modes.
  • Experience with low-code automation platforms such as Tines or n8n.
  • Agent programming and prompt engineering, specifically for LLM tooling.
  • Experience with AI-enriched detection or triage pipelines.

What you get

  • Health, dental, and vision coverage starting on the first day of employment, with Five9 covering 100% of the employee portion.
  • Short & Long-Term Disability and Basic Life Insurance.
  • 401k saving plan with employer matching.
  • Access to a mental health support platform for therapy and mindfulness resources.
  • Generous employee stock purchase plan.
  • Paid Time Off, company paid holidays, paid volunteer hours, and 12 weeks paid parental leave.

Worth weighing

  • The role requires working Pacific Time hours (9:00AM - 5:00PM).
  • Candidates within 30 miles of an office must work in a hybrid model (3 days in office).
  • The position emphasizes self-direction and problem-solving without micromanagement, which may not suit everyone.

Summarised from Five9's posting. Read the full original.

Listed by Five9 on their greenhouse job board, last confirmed open on 2026-10-22. PitchMeAI is not the employer.

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