Sr. Engineer, Cybersecurity - Threat Response

T-Mobile•Downers Grove, IL

1d•$103,400 - $186,400•Onsite

About The Position

This role is essential for protecting digital assets and maintaining the integrity of cybersecurity infrastructure within the organization. It involves developing and implementing security strategies, tools, and technologies to defend against cyber threats and vulnerabilities. The role is distinguished by its focus on proactive risk identification and deployment of mitigation measures to safeguard systems and data. Success is measured by the effectiveness of security improvements and alignment with organizational goals and regulatory requirements. The work enhances organizational resilience to cyber incidents and supports overall security posture for internal and external team members. Our team is dynamic where no day is the same, and we are a diverse and inclusive team passionate about growth and innovation!

Requirements

Bachelor's Degree plus 5 years of related work experience OR Advanced degree with 3 years of related experience. Acceptable areas of study include Computer Science or Information Technology.
4-7 years experience with security related software and/or business process design.
4-7 years experience in technical project management and leading multi-functional solution design teams.
4-7 years experience in network information security, including firewall policy design, SSL certificate management, and vulnerability analysis and mitigation.
Experience supporting cybersecurity operations, security investigations, or incident response activities.
Experience with enterprise security technologies and security monitoring platforms.

Nice To Haves

Experience serving as an Incident Commander, Incident Lead, or similar coordination role during major cybersecurity incidents or enterprise outages.
Knowledge of telecommunications, carrier, service provider, or large-scale network environments, including core networking concepts, network protocols, and network security principles.
Experience investigating network-based attacks, telecommunications infrastructure security events, or incidents involving enterprise and carrier-grade technologies.
Experience conducting digital forensics investigations and knowledge of forensic tools such as Axiom, KAPE, EnCase, X-Ways, Cellebrite, or similar platforms.
Experience with MITRE ATT&CK, Cyber Kill Chain, and NIST/SANS Incident Handling frameworks.
Experience with SOAR platforms and security automation development.
Knowledge of cloud security and enterprise-scale environments.
Experience with SIEM, IDS/IPS, EDR, and security monitoring technologies.
Solid understanding of network security, routing, switching, DNS, TCP/IP, telecommunications technologies, threat detection, and incident response methodologies.
Strong knowledge of enterprise networking concepts, including TCP/IP, DNS, routing, switching, firewalls, network protocols, and network-based threat detection and response
Knowledge of adversary tactics, techniques, and procedures (TTPs), threat-informed defense methodologies, and proactive investigation techniques
Knowledge of scripting tools (Python, Perl, Shell, HTML, PHP)
Strong analytical, troubleshooting, and problem-solving skills.
Ability to communicate technical findings to both technical and non-technical audiences.
Licenses and Certifications(preferred) CISSP, CISM, CRISC, CCSP, CCSK, CISA, GCIH, GCFA, GCFE, GNFA, GCIA, GREM, or similar certifications.

Responsibilities

Conduct analysis of security alerts, incidents, and threat intelligence to identify potential risks and assess impact to systems and business operations.
Lead and support cybersecurity incident response activities, including detection, investigation, containment, eradication, recovery, and post-incident review.
Serve as Incident Commander during cybersecurity incidents, coordinating multi-functional response efforts, driving decision-making, managing communications, and ensuring timely resolution of security events.
Conduct proactive investigations to identify emerging threats, validate security controls, and improve detection and response capabilities.
Develop and implement response procedures and mitigation strategies to reduce organizational risk.
Collaborate with internal technology teams and business partners to investigate security events and drive remediation efforts.
Partner closely with network, cloud, infrastructure, and application teams to investigate security incidents impacting enterprise and telecommunications environments.
Document incident findings, root cause analysis, response actions, and lessons learned in accordance with company policies and regulatory requirements.
Communicate incident status, technical findings, and remediation recommendations to leadership and key collaborators.
Contribute to continuous improvement of detection and response capabilities through process enhancements, tuning opportunities, automation, and knowledge sharing.
Monitor evolving threat activity and apply industry standards to improve organizational resilience.
Provide technical guidance and mentoring to peers and junior team members.
Participate in cybersecurity initiatives and projects assigned by management.
Participate in an on-call rotation to provide after-hours support for cybersecurity incident escalations originating from the Security Operations Center (SOC).