T-Mobile · 3 days ago
Principal Engineer, Cybersecurity
T-Mobile is a leading telecommunications company dedicated to investing in its employees. They are seeking a Principal Engineer in Cybersecurity to ensure the highest security standards for their systems and infrastructure, perform technical assessments, and collaborate with various teams to enhance security posture.
InternetMobileTelecommunicationsWireless
Responsibilities
Optimizes cross-functional partnership to successfully address customer requirements. Leads / organizes large scale analysis efforts spanning multiple departments. Uses internal and external data resources to make strategic business decisions and persuade others. Collaborates and builds long-term relationships with key partners. Anticipates likely stakeholder responses to specific recommendations and can address accordingly
Leads information security review of new technologies, designs, and remediation planning efforts
Collaborates with Engineering & Operations Teams to address security vulnerabilities found via PSIRTs, scans or breaches
Proactively identifies process or technology improvements within existing legacy applications or infrastructure and seeks out remediation
Investigates and/or leads identifying security needs & recommends plans/resolutions. Implements, tests & monitors info security improvements
Maintains visibility inside & outside of information security at the Executive (Director/Sr Director) level. Interfaces with groups such as application support, engineering ops, finance, privacy, risk management, etc
Significant experience with the analysis of underlying technologies that form the solution necessary for the application of threat identification, analysis, and thread model design. The threat model depicts trust boundary, threat agent(s), threat vector(s), and safeguard(s) necessary to protect person, asset, data, and T-Mobile brand
Proactively identifies areas that need to be developed and seeks out expertise in those areas. Keeps abreast of current developments and trends and can use this knowledge to create a business case to address major issues and create specific action plans to address the gaps that the team controls. Plays a leadership role in the execution of that action plan
Leads security projects driven by groups both internal and external to info security
Mentors, peers and junior team members in security technologies, enterprise solution design, SDLC facilitation and effective customer interaction
Significant experience with implementation of various threat modeling approaches pertaining to one or more of the following STRIDE, PASTA, TRIKE, ATTACK TREE, DREAD, KILL CHAIN, CAPEC, Mobile Application threat model, Cyber Threat Tree, and data flow diagram
Advanced understanding of IP/Security solutions & technologies applicable to the Wireless Network Architecture
Also responsible for other Duties/Projects as assigned by business management as needed
Qualification
Required
Bachelor's Degree, Computer Science, or Information Technology (required). Relevant experience in lieu of degree might be considered
7-10 years' Experience with increasing responsibility with security related software and/or business process design (Required)
4-7 years' Experience with the following: project/team lead, formal implementation SDLC, facilitation of cross-functional solution design teams
4-7 years' Technical Project Management
Previous Leadership experience
Be subject matter expert in multiple security subject areas
Experience with high level design architecture, security technologies, networking, web services and SOA
Subject matter expert in all facets of network & information security, including Firewall policy design, SSL Certificate management, vulnerability analysis & mitigation, and other topics as assigned
Significant knowledge of current technological trends and developments in the area of info security
Ability to create technical specification and requirements and work independently and with no direction/supervision. Able to quickly adapt to new or evolving technologies related to new product & services requiring validation or research
Strong verbal and communication skills with diverse cross functional groups. Ability to present advanced concepts to leadership, peers, and others in subordinate roles
Always act with tact and integrity, and collaborate with a variety of individuals in a positive and productive manner
Self-motivated and able to work under tight timelines
Strong problem solving / troubleshooting skills
Ability to plan, organize and prioritize tasks to complete independently, as well as delegate and track progress within the team, all within the time frame established
In-depth knowledge of security best practices in large-scale environments. Author white papers and presents at industry conferences. Able to drive industry standards and socialize internally and externally
Strong presentation skills to large and small audiences
Understanding load balancers (ex – A10, F5), firewalls (ex – CheckPoint), Venafi, MDM (ex - Mobile Iron), Cloud (ex - AWS, Azure), Malware Protection (ex -FireEye), Advanced Persistent Threats (ex - Damballa), Privileged Accounts (ex – CyberArk), SIEM (ex – ArcSight), Log & Event (ex – Splunk), Intrusion IDS/IPS (ex – Symantec), Cloud Platform (ex – PCF, Docker), Scanning (ex – Qualys), AppSec (ex - Veracode)
Expert understanding of T-Mobile's network elements and how they work together (EIT, Engineering & 3rd Party)
Advance knowledge of Scripting tools (Python/Perl/Shell/HTML/PHP)
Knowledge of federal & compliance regulations e.g. SOX, PCI & CPNI
At least 18 years of age
Legally authorized to work in the United States
Preferred
CISSP and/or CCSK and/or CCSP and/or CISA/CISM certification a plus
Benefits
Annual stock grant
Employee stock purchase plan
401(k)
Access to free, year-round money coaches
Medical, dental and vision insurance
Flexible spending account
Paid time off
Up to 12 paid holidays
Paid parental and family leave
Family building benefits
Back-up care
Enhanced family support
Childcare subsidy
Tuition assistance
College coaching
Short- and long-term disability
Voluntary AD&D coverage
Voluntary accident coverage
Voluntary life insurance
Voluntary disability insurance
Voluntary long-term care insurance
Mobile service & home internet discounts
Pet insurance
Access to commuter and transit programs
Company
T-Mobile
T-Mobile is a telecommunications company that provides wireless communication services, including mobile phone and internet services. It is a sub-organization of Deutsche Telekom.
H1B Sponsorship
T-Mobile has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (533)
2024 (457)
2023 (433)
2022 (674)
2021 (522)
2020 (320)
Funding
Current Stage
Public CompanyTotal Funding
$25.37B2026-01-06Post Ipo Debt· $10B
2025-10-06Post Ipo Debt· $2.8B
2024-09-23Post Ipo Debt· $2.5B
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