SOC Analyst

Get to Know Us

Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to the mission of enabling organizations to proactively find, fix and verify exploitable attack vectors before criminals exploit them. Our flagship product, the NodeZero™ platform, delivers production-safe autonomous pentests and other key assessment operations that scale across the largest internal, external, cloud, and hybrid cloud environments. NodeZero has been adopted by organizations of all sizes, from small educational institutions to government agencies and Global 100 enterprises. It is used by IT Ops/SecOps teams, consulting pentesters, and MSSPs and MSPs.

We are a fusion of former U.S. Special Operations cyber operators, startup engineers & operators, and formerly frustrated cybersecurity practitioners. We're committed to helping solve our common security problems: ineffective security tools and false positives, resulting in alert fatigue, blind spots, “checkbox” security culture, cybersecurity skills shortage, and the long lead time and expense of hiring outside consultants. Collectively, we are a team of learn it alls, committed to a culture of respect, collaboration, ownership, and results.

What You'll Do

We are seeking a skilled SOC Analyst to join our growing Security Operations team. This is a mid-level role for an analyst who has developed strong foundational skills in Security Information and Event Management (SIEM) and is ready to take ownership of monitoring, triage, and detection work with minimal day-to-day direction.

Working within one of our SOC shifts and reporting to the SOC Manager, you'll monitor the health and effectiveness of our SIEM platform (Elastic SIEM or equivalent) and support threat detection, log analytics, and incident response in a high-scale, cloud-native environment. As you grow, you'll take on more complex detections and investigations, contribute process improvements, and help onboard newer analysts.

This role is instrumental in helping us scale and mature our security detection and response capabilities while maintaining a strong security posture across the organization.

This role will be responsible for…..

Monitor, detect, and respond to security events across enterprise environments using the SIEM

Support log ingestion, parsing, and normalization, and monitor ingestion health across critical sources (AWS, Okta, endpoints, firewalls, SaaS), partnering with system owners to close telemetry gaps

Build and maintain dashboards, visualizations, and KPIs that demonstrate SIEM effectiveness and security visibility

Triage, investigate, and validate alerts, escalating confirmed or ambiguous incidents to a Senior Analyst or the SOC Manager with clear context

Tune and test detection rules (behavioral, heuristic, signature-based) to reduce false positives and improve fidelity

Use frameworks such as MITRE ATT&CK to contextualize detections and identify coverage gaps

Analyze logs across cloud, endpoint, network, and application sources to surface anomalies and potential threats

Perform structured investigations and root cause analysis, providing attack-chain mapping and remediation guidance for escalated alerts

Follow and help refine response playbooks for common incident types (phishing, suspicious logins, endpoint malware, privilege escalation, cloud misconfiguration), documenting lessons learned to strengthen detection logic

Contribute to SOAR automation (e.g., Tines or similar) to reduce manual toil and improve mean time to detect (MTTD) and respond (MTTR)

Use LLM/AI-assisted tooling to speed up triage, log summarization, and investigation enrichment, and contribute to SOC AI agent and automation workflows, verifying model output before acting on it

Participate in proactive threat hunting and contribute to weekly and monthly reporting on threat trends, false-positive reduction, and detection efficacy

Communicate clearly with shift peers and stakeholders, and, as you progress toward P3, help train and onboard more junior analysts

Demonstrate a commitment to integrity, process improvement, and customer satisfaction

What You'll Bring

Must have hands-on SOC or security-analyst experience spanning SIEM monitoring, alert triage, detection tuning, and incident response

Must have working experience with an enterprise SIEM such as Elastic SIEM (preferred), Splunk, Microsoft Sentinel, QRadar, or similar

Must have a solid grasp of log analysis, security telemetry, and event correlation

Must have proficiency with detection-rule authoring and query languages (KQL, Lucene, SPL) and scripting in Python, Bash, or PowerShell

Must have familiarity with at least one major cloud (AWS, GCP, or Azure) and its security tooling

Must have working knowledge of MITRE ATT&CK, NIST, and CIS

Must have practical familiarity with using LLMs / AI assistants at work, including effective prompting, grounding responses in trusted data, and recognizing model limitations and when to verify output

Must have strong analytical and problem-solving skills, with the ability to prioritize and manage your own work with minimal direction

Must have clear written and verbal communication and the ability to document processes and findings

Minimum Education and Experience

Bachelor's degree in Computer Science, Cybersecurity, Information Security, or a related field, or equivalent hands-on security operations experience

3–6 years in a SOC or security analyst role

Demonstrated hands-on experience operating an enterprise SIEM (Elastic SIEM preferred) in a cloud environment

Required Tech Stack Experience

SIEM platforms: Elastic SIEM (preferred), Splunk, Microsoft Sentinel, or QRadar

Query and detection languages: KQL, Lucene, or SPL

Scripting: Python, Bash, or PowerShell

Cloud platforms: AWS, GCP, and/or Azure

Security frameworks: MITRE ATT&CK, NIST, CIS

SOAR / automation platforms (e.g., Tines or similar)

Enterprise LLM / AI platforms (e.g., Claude, Gemini, AWS Bedrock, or similar) and prompt/agent tooling

Work Authorization & Security Clearance Requirements

Only US persons can interview for this role due to security clearance requirements by our customer(s) and/or vendor(s). Employee must be eligible for and successfully secure a US Federal Security Clearance as a condition of employment.

What Sets You Apart?

Certifications such as Security+, CySA+, GCIA, GCIH, or Elastic Certified Analyst

Hands-on experience with endpoint detection and response (EDR) or XDR platforms

Judgment about which model fits which task, e.g., fast, lower-cost models for high-volume triage vs. stronger reasoning models for complex investigations, and how to prompt each for reliable results

Experience building agentic workflows that chain models, tools, and data sources (e.g., automated enrichment, triage, or investigation summarization) on an enterprise AI platform

Experience mentoring or onboarding junior analysts, or leading small process improvements end-to-end

Experience in a high-growth SaaS or cybersecurity company

Travel Required

We are a fully remote company, and this job may require up to 5% of travel to be successful.

Compensation and Values

At Horizon3, we believe that our people are our greatest asset, and our compensation philosophy reflects this core value. We are committed to fostering an environment where all employees feel valued, respected, and rewarded for their contributions. Our compensation structure is designed to be fair, competitive, and transparent, ensuring that every team member is recognized and compensated equitably across roles, levels, and locations.

In accordance with various State's transparency regulations, we provide the following range information for this position:

Base salary range: $123,850 - $161,000 annually. The exact salary will be determined based on the selected candidate's location, qualifications, experience, and relevant sk