Poshmark

Software Engineer - SOC

Poshmark • $92K — $154K *
Redwood City, CA 94061In-Person
Information Technology
Less than 5 years of experience
1 month ago
Job Overview by Ladders

Qualifications

  • 2-4 years in information security or related field
  • Hands-on experience with SIEM and security tools
  • Experience in incident response and investigations
  • Strong understanding of cloud security (AWS, GCP, Azure)
  • Proficient in a programming/scripting language (Python, Bash, Go)
  • Familiarity with software engineering fundamentals

Responsibilities

  • Monitor and analyze security events across systems
  • Lead incident response activities focusing on efficiency
  • Conduct deep-dive root cause analysis of attacks
  • Develop automation frameworks for detection and response
  • Create and improve incident response playbooks
  • Fine-tune alerting systems to enhance accuracy
  • Collaborate with cross-functional teams to remediate vulnerabilities

Benefits

  • Opportunities for professional development
  • Collaborative work environment
  • Contributions to security engineering and SOC projects
  • Flexible work arrangements
  • Access to cutting-edge security tools and technology
Full Job Description
Job Description:

Responsibilities
  • Monitor, analyze, and triage security events and alerts across distributed systems to identify potential incidents and anomalous behavior
  • Lead end-to-end incident response, including investigation, containment, eradication, and recovery, with an emphasis on scalable and repeatable processes
  • Perform deep-dive root cause analysis of sophisticated attacks spanning infrastructure, network, and application layers, including code-level vulnerabilities
  • Design, build, and maintain automation frameworks to improve detection and response efficiency (e.g., auto-remediation, alert enrichment pipelines)
  • Develop and maintain detection logic (rules, queries, behavioral analytics) using engineering best practices such as version control, testing, and CI/CD
  • Create and continuously improve incident response playbooks as modular, reusable, and programmatic workflows
  • Fine-tune alerting systems to reduce noise and false positives through data analysis, feedback loops, and algorithmic improvements
  • Collaborate closely with SRE, DevOps, IT and engineering teams to remediate vulnerabilities and improve system security and reliability
  • Engineer and enhance SIEM capabilities, including log ingestion pipelines, normalization, correlation rules, and integrations
  • Implement and scale security monitoring solutions across cloud-native and distributed environments
  • Conduct proactive threat hunting using data-driven and hypothesis-based approaches
  • Enrich and correlate telemetry using IOCs, threat intelligence feeds, and custom-built data pipelines
  • Contribute to SOC tooling and internal platforms by writing clean, maintainable, and efficient code
  • Participate in architecture and design discussions to embed security into systems from the ground up
  • Drive and contribute to broader security engineering and SOC modernization projects


Minimum Qualifications
  • 2-4 years of experience in information security, security engineering, or a related field
  • Hands-on experience with SIEM platforms, EDR tools, IDS/IPS, firewalls, and vulnerability management systems
  • Experience with incident response and security investigations
  • Strong understanding of cloud environments (AWS, GCP, or Azure) and associated security considerations
  • Proficiency in at least one programming or scripting language (e.g., Python, Bash, or Go) with the ability to build automation and tooling
  • Familiarity with software engineering fundamentals (data structures, APIs, version control, testing)


Preferred Qualifications
  • Experience in Incident Response, Malware Analysis, and Threat Hunting
  • Background in SOC, or SecDevOps practices
  • Experience building or maintaining internal security tools or platforms
  • Knowledge of distributed systems and observability (logging, metrics, tracing)
  • Familiarity with CI/CD pipelines and infrastructure-as-code (e.g., Terraform)
  • Relevant certifications (e.g., GCIA or similar)


6-Month Accomplishments
  • Independently handle full incident response lifecycle with a focus on improving repeatability through automation
  • Build or enhance at least one automation workflow (e.g., alert enrichment, triage pipeline, or response action) that reduces manual effort
  • Develop high-fidelity detections with low false-positive rates using structured testing and validation approaches
  • Author and maintain programmatic incident response playbooks integrated with SOC tooling
  • Demonstrate strong understanding of the evolving threat landscape and apply insights to detection engineering
  • Contribute code or improvements to internal SOC tools, repositories, or automation frameworks


12+ Month Accomplishments
  • Significantly reduce Mean-Time-to-Detect (MTTD) and Mean-Time-to-Respond (MTTR) through scalable engineering solutions and automation
  • Establish and maintain a robust detection engineering lifecycle (design, test, deploy, measure, iterate)
  • Improve overall security operations posture through continuous system-level and architectural enhancements
  • Lead or contribute to major security engineering projects that strengthen monitoring, detection, and response capabilities
  • Build reusable frameworks, libraries, or services that elevate SOC efficiency and engineering maturity
  • Act as a bridge between Security and Engineering teams, promoting secure-by-design principles across the organization


Salary Range:
$92,300.00 - $154,600.00 Annual

About Poshmark

Poshmark is an online marketplace that allows users to buy and sell new and used clothing, shoes, and accessories. The company was founded in 2011 and is headquartered in Redwood City, California. Poshmark's platform is designed to make it easy for users to buy and sell items, with features like in-app payments, shipping labels, and seller ratings. Poshmark has raised over $150 million in funding and has been recognized as one of the fastest-growing companies in the United States.
Learn more about Poshmark
Size
600 employees
Market Cap
$1.4 billion
Industry
Retail & Consumer Goods
Net Income
$6.1 million
Founded
2011
Revenue
$262 million
NASDAQ
POSH
* Ladders Estimates

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