Matt Rosloniec
is Principal Engineer @Publix Super Markets
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WORK HISTORY
is Principal Engineer @Publix Super Markets
As a Principal Security Engineer on the Network Segmentation team at Publix, I lead the development and enforcement of enterprise firewall standards across a Palo Alto Networks–centric security architecture.My work focuses on strengthening inspection, segmentation, and control mechanisms across retail, corporate, and cloud environments. Notable initiatives include enabling IPS inspection for all North/South and East/West enterprise traffic, eliminating legacy “any/any” firewall rules at over 50 support locations, and remediating more than a decade of accumulated technical debt in geo-whitelisting policies.I have driven the implementation of DNS Security, standardized Microsoft 365 and Azure firewall access models, and operationalized recommendations from Palo Alto’s Best Practice Assessment framework. I also established governance and control mechanisms for RMM applications to prevent unauthorized remote access pathways into the enterprise.My focus is on building scalable, enforceable standards that reduce risk while enabling the business — balancing security rigor with operational practicality.
EDUCATION
Davenport University
BAS, Network Security
SKILLS
ABOUT MATT ROSLONIEC
I design and operate enterprise firewall environments where failure is not an option.As an IS Principal Engineer at Publix Super Markets, I focus on network security architecture and firewall policy engineering at scale. With 15+ years of experience, I build, modernize, and govern complex firewall infrastructures that protect critical business systems while enabling growth and innovation.My work spans global firewall deployments, vendor migrations, and advanced policy transformations from Layer 3 to Layer 7, delivering stronger security, finer-grained control, and operational efficiency. I routinely lead high-risk, high-impact initiatives and have executed complex security projects with a 99%+ success rate and minimal business disruption.Beyond engineering, I operate at the intersection of strategy, architecture, and execution. I provide expert input to enterprise security strategy, produce detailed design documentation for complex initiatives, and translate abstract security goals into practical, scalable solutions.I’m equally invested in building strong teams and processes. I develop SOPs that enable junior engineers to operate with confidence and consistency, mentor team members, interview and evaluate technical candidates, and establish repeatable frameworks that improve quality, speed, and reliability across security operations.I’m known for a calm, methodical approach and the ability to communicate complex technical concepts in clear, actionable terms. Whether shaping long-term security architecture or executing mission-critical changes in production environments, my goal is simple: deliver security solutions that are resilient, scalable, and aligned with real business needs.
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