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Sr. Information Security Engineer - Incident Response

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Posted 2 months ago, valid for 16 days
Location

Saint Ann, St. Louis 63074, MO

Salary

Competitive

Contract type

Full Time

Paid Time Off
Tuition Reimbursement
Employee Assistance
Flexible Spending Account

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Sonic Summary

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  • This role focuses on establishing and maintaining the IT security infrastructure to protect the company's information assets.
  • Candidates should have a Bachelor's degree in information systems or 5-7 years of experience in the information security field, along with relevant industry certifications like CISSP or CISM.
  • The position involves leading incident response efforts, developing playbooks, and collaborating with cross-functional teams to enhance security operations.
  • The salary for this position is competitive, reflecting the candidate's experience and expertise in the field.
  • Additional benefits include a 401K match, paid time off, medical and dental insurance, and opportunities for career development.

Purpose

This role is responsible for establishing and maintaining the enterprise-wide IT security infrastructure to ensure the security, integrity, and availability of the company’s information assets. This includes the rigorous application of information security and information assurance policies, principles, and practices, with a strong emphasis on Incident Response readiness and operational execution. The position will lead efforts to detect, analyze, contain, eradicate, and recover from security incidents while continuously improving response processes, tooling, playbooks, and defensive capabilities.

Responsibilities

  • Provide efficient and effective Infrastructure Security Operations Support of all supported infrastructure security components
  • Investigate and analyze common security incidents, including malware infections, phishing attempts, unauthorized access, and suspicious network activity.
  • Develop, maintain, and optimize Incident Response playbooks and SOPs to ensure consistent, efficient detection, containment, eradication, and recovery processes.
  • Collaborate closely with the MSSP to refine detection use cases, validate alerts, coordinate response actions, and improve overall SOC effectiveness.
  • Drive containment and remediation efforts during active security events, working with cross‑functional teams to minimize impact and ensure rapid recovery.
  • Support and enhance email security controls, including phishing analysis, message tracing, and mail flow/security policy tuning.
  • Participate in an on‑call rotation to provide timely response during off‑hours incidents.
  • Conduct root‑cause analysis and produce post‑incident reports, identifying gaps and recommending improvements to tooling, processes, and security posture.
  • Assist in threat hunting activities to proactively identify emerging threats or abnormal behaviors in the environment.
  • Contribute to continuous improvement of logging, monitoring, and alerting across security platforms.
  • Provide timely and effective maintenance and repair support on all supported infrastructure security components
  • Conduct efficient security monitoring of all supported infrastructure security components to include but not limited to firewalls and intrusion detection/prevention systems
  • Ensure effective change control and configuration management of all supported infrastructure security-related components to establish and maintain consistency of their performance and functional and physical attributes
  • Develop and execute advanced automation and orchestration activities as applicable across several information security domains
  • Some familiarity administering the following technology stack: Splunk, Microsoft Azure and Defender, CheckPoint Firewall/Email, and Imperva WAF.
  • Manage risk identification within the technical architecture in partnership with infrastructure teams
  • Keep abreast of and gain expertise in the evolving technology and understand how new technologies could be applied to our security environment
  • Research, test and understand the relevant products and product capability
  • Participate in the vendor community on relevant products and product capability
  • Work under the guidance from more senior information security engineers
  • Mentors’ junior information security engineers

About You

  • Bachelor's degree in information systems, or related field, OR 5-7 years of experience in the information security field
  • Relevant Industry certifications such as CISSP, CISM, and AZ-500
  • Demonstrate good judgment in solving problems, identifying problems in advance, and proposing solutions
  • Strong analytical and organizational skills, with attention to detail
  • Demonstrate strong verbal and written communication skills
  • Ability to multi-task, prioritizing multiple objectives and initiatives
  • Able to work in a team environment and with a diverse group

Physical Requirements

  • Ability to travel up to ~10% of the time, which may include weekends and evenings, as needed
  • Most work is performed in a temperature-controlled environment
  • Incumbent may sit for long periods of time at a desk or computer terminal
  • Incumbent may use calculators, keyboards, telephone and other office equipment in the course of a normal workday
  • Stooping, bending, twisting and reaching may be required in completion of job duties

Our Values 

Ability to demonstrate, understand and apply our workplace values. 

Simplicity (operate) – the drive to identify root cause and innovate to remove complexity to deliver the best outcome 

Heart (emotion) – the passion that drives you to get up every day and work hard to strive for excellence 

Performance Excellence (mindset) – clearly defining high expectations, driving ownership of key roles and responsibilities, executing with integrity and emphasis while creating a culture of accountability 

Respect (philosophy) – taking pride in being inclusive and treating everyone who comes through the doors with respect  

 

Benefits 

  • 401K company match up to 4%
  • Paid Time Off 
  • Medical Insurance options including FSA & HSA
  • Vision Insurance
  • Dental insurance
  • Employee Assistance Programs
  • Team Member Referral Program
  • Tuition Reimbursement
  • Wellbeing Program
  • Career development opportunities


 The above statements are intended to describe the general nature of the work performed by the employees assigned to this job. All employees must comply with Company policy and applicable laws. The responsibilities, duties and skills required of personnel so classified may vary within each department and /or location.




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By applying, a Sonicjobs account will be created for you. Sonicjobs's Privacy Policy and Terms & Conditions will apply.

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