Staff Engineer, Detection and Response

io is the leading go-to-market solution for revenue teams, trusted by over 500,000 companies and millions of users globally, from rapidly growing startups to some of the worlds largest enterprises. Apollo.io provides sales and marketing teams with easy access to verified contact data for over 210 million B2B contacts and 35 million companies worldwide, along with tools to engage and convert these contacts in one unified platform. By helping revenue professionals find the most accurate contact information and automating the outreach process, Apollo.io turns prospects into customers. Apollo raised a series D in 2023 and is backed by top-tier investors, including Sequoia Capital, Bain Capital Ventures, and more, and counts the former President and COO of Hubspot, JD Sherman, among its board members.

Report progress and risks to leadership in business terms.
Work with Engineering, Infrastructure and IT so logging, telemetry and response readiness are planned into their roadmaps early.
Set D&R standards: detections and response as code, review practices, playbook quality, and AI-assisted workflows.
Mentor engineers to own detections and lead incidents, and help raise the hiring bar.
Detection engineering and observability

Own security observability: telemetry onboarding, signal quality, threat intel inputs and alert tuning.
Run the detection lifecycle: intake and prioritization, unit tests, replay against historical data, attack simulation, and regular reviews of coverage gaps, latency, false positives and MTTD.
Stay hands-on: ship MITRE ATT&CK-aligned detections, threat hunts and automations in Panther and Python via Git and CI/CD.
Build IR readiness: tabletop exercises with Engineering, Legal, Fraud and leadership, plus response automation and forensic readiness.
Measure IR quality (MTTA/MTTR by severity, repeat incidents, action closure) and feed every incident’s lessons back into detections, automation and process.
Lead high-severity incidents as senior technical lead or incident commander across cloud, SaaS and corporate systems.
You’ll measure the gains in speed, coverage and signal quality. You’ll also help define how we detect misuse of Apollo’s own AI systems and agent features.
8+ years in detection and response, detection engineering, security engineering or incident response.
~ Hands-on experience designing detection architecture and shipping detection systems on a modern SIEM (Panther highly valued).
~ Strong Python, Git, CI/CD and detection-as-code skills.
~ Experience leading high-severity incidents in cloud and SaaS environments and improving the IR process behind them.
~ Cloud and SaaS expertise, ideally GCP, plus familiarity with tools like Google Workspace, Okta, GitHub, Slack, Atlassian, Cloudflare, CrowdStrike, Kandji and Snowflake.
~ Staff, Lead or Principal-level experience at a high-growth cloud or SaaS company.
Public security work (detection content, open-source tools, talks, research) or certifications such as GCIA, GCIH or GCED.
Panther (SIEM), Python, GCP, Kubernetes, Docker, Terraform, Google Workspace, Okta, GitHub, Slack, Atlassian, Cloudflare, CrowdStrike, Kandji, Snowflake. The listed Pay Range reflects the total cash compensation inclusive of annual base salary and annual bonus as applicable. For sales roles, the range provided is the role’s On Target Earnings ("OTE") range, meaning that the range includes both the sales commissions/sales bonus target and annual base salary for the role. Additional benefits for this role may include: equity; company bonus or sales commissions/bonuses; at least 10 paid holidays per year, flex PTO, and parental leave; employee assistance program and wellbeing benefits; global travel coverage; FSA/HSA and medical, dental, and vision benefits.
We’re on the front lines of driving productivity for our customers—and we expect the same mindset from our team. At Apollo, we’re driven by a shared mission: to help our customers unlock their full revenue potential. Collaboration is at our core—we’re

all for one

, meaning you’ll have a team across departments ready to help you succeed. We encourage

bold ideas and courageous action

, giving you the freedom to experiment, take smart risks, and drive big wins.