Sr. Network Engineer

RESPONSIBILITIES

TECHNICAL LEADERSHIP & ESCALATION

Serve as the primary escalation point for complex network incidents, outages, and performance issues owing problems through to resolution with clear communication to stakeholders Provide expert guidance to internal engineers, MSP resources, and NOC personnel on architecture, troubleshooting methodology, and root cause analysis Lead post-incident reviews, drive root cause identification, and implement lasting remediations to prevent recurrence Evaluate complex vendor and MSP escalations; make technical decisions on design, tooling, and resolution approach

NETWORK ARCHITECTURE & DESIGN

Work with the Director of Network & Infrastructure to architect scalable, resilient, and secure network solutions across LAN, WAN, wireless, cloud, and building infrastructure Lead the design and evolution of network segmentation strategy including zero-trust principles, VRF separation, and secure OT/IT boundary enforcement Develop and maintain network infrastructure standards, reference architectures, and design patterns for consistent deployment across properties Evaluate emerging technologies and contribute to the long‑term infrastructure roadmap, particularly around Palo Alto / Panorama, Aruba, and cloud connectivity platforms

NETWORK ENGINEERING & OPERATIONS

Design, deploy, and manage enterprise network infrastructure across BMS, IoT, Wi‑Fi, PropTech, AV, security systems, corporate offices, and the Observatory Administer Palo Alto NGFWs via Panorama — policy management, threat prevention, VPN, NAT, and security profile lifecycle management Manage and optimize Aruba switching and wireless infrastructure including configuration, upgrades, RF planning, and troubleshooting via Aruba Central Own BGP, OSPF, VLANs, VPN, QoS, and DNS configurations across multi‑site environments Manage WAN and ISP connectivity including failover design and carrier‑level troubleshooting Support IoT and PropTech deployments in a secure manner with a focus on building systems, access control, and sustainability technology

SECURITY & COMPLIANCE

Lead network security posture improvements including firewall policy lifecycle, ACL governance, and vulnerability remediation Administer Zscaler ZIA and ZPA — URL filtering, SSL inspection, cloud firewall rules, and app connector management Manage Proofpoint email security platform including anti‑spam, anti‑phishing, encryption, and threat response policies Administer BitSight to track, triage, and coordinate remediation of external security posture findings Maintain PCI‑DSS and SOX compliance through adherence to and enforcement of network policies and procedures Collaborate with the MSSP on security monitoring, threat analysis, and incident response Ensure timely application of patches, hotfixes, and firmware upgrades across all network equipment

IDENTITY, ACCESS & CLOUD

Administer Okta for SSO/SAML/OIDC, MFA enforcement, and user lifecycle management including SCIM provisioning and deprovisioning Manage Conditional Access Policies and integrate identity platforms with Palo Alto User‑ID, Zscaler IdP federation, and Azure AD Design and manage Microsoft Azure cloud networking including hybrid connectivity, VNet architecture, NSGs, and Azure Firewall Support Microsoft 365 and Exchange Online from a network and connectivity perspective including split tunneling and optimization Support IAM and PAM platforms as they relate to network access control and privilege governance

PHYSICAL INFRASTRUCTURE & SYSTEMS

Manage physical server infrastructure, rack equipment installation, and data center operations including cabling, power, and cooling Administer building riser infrastructure and ensure secure integration of IT and OT devices on segregated network segments Support VMware vSphere virtual networking environments and server resource management Oversee SAN/NAS storage networking and business continuity / backup technologies

MONITORING, DOCUMENTATION & GOVERNANCE

Drive network monitoring strategy and tooling to ensure proactive alerting and performance trending across the full infrastructure estate Author and maintain high‑quality documentation including topology diagrams, configuration baselines, SOPs, and runbooks Contribute to business continuity and disaster recovery procedures; develop, test, and maintain failover runbooks Adhere to change management and PMO best practices for all infrastructure changes; manage project milestones with clear stakeholder communication

WHAT SUCCESS LOOKS LIKE

Complex escalations are resolved decisively and thoroughly, with clear communication throughout the team and Director trust this person to own the hardest problems Network architecture documentation, standards, and reference designs are developed and kept current, reducing reliance on tribal knowledge Security posture improves measurably: firewall policies are rationalized, vulnerabilities remediated on time, and segmentation consistently enforced Network stability and availability are maintained across all properties; incidents are detected proactively rather than reactively New technologies and architectural improvements are identified and brought forward with well‑reasoned business cases Service Desk escalations are resolved efficiently with recurring patterns identified and addressed proactively

REQUIRED TECHNICAL SKILLS / ABILITIES

INTERPERSONAL SKILLS

Communicates complex technical issues, architectural decisions, and incident status clearly to both engineering peers and executive leadership Strong analytical and troubleshooting instincts works through ambiguous, high‑pressure situations methodically and calmly Collaborative mindset: works effectively with internal teams, MSP, MSSP, and vendors; shares knowledge freely and raises team capability Self‑directed and highly accountable that takes ownership without waiting to be asked and follows through to full resolution Strong documentation discipline; leaves systems, configurations, and designs better documented than found Proactively monitors industry developments and brings emerging technologies and best practices to the team’s attention PALO ALTO NGFWs & PANORAMA Expert‑level policy management, troubleshooting, and architecture across a distributed multi‑site environment Panorama: centralized policy administration, device group management, log forwarding, and operational management at scale Advanced firewall design: zone‑based architecture, App‑ID, User‑ID, URL filtering, SSL decryption, threat prevention, and WildFire integration GlobalProtect: VPN configuration, gateway management, and site‑to‑site connectivity NAT policy design, security profile tuning, and firewall policy lifecycle management PCNSE certification strongly preferred

ARUBA WIRELESS & SWITCHING

Aruba CX / AOS‑CX switching — configuration, troubleshooting, and lifecycle management across multi‑site environments Aruba Central management: RF planning, access point lifecycle, and performance optimization Wireless security: 802.1X, RADIUS integration, guest network segmentation, and rogue AP detection SD‑WAN architecture awareness and WAN/ISP circuit failover design

ZSCALER ZIA / ZPA

Zscaler Internet Access (ZIA) URL filtering, SSL inspection, cloud firewall, and policy configuration Zscaler Private Access (ZPA) zero‑trust application access, app connector management, and policy administration Zscaler tenant administration, log streaming, and integration with SIEM and identity providers

OKTA / IAM & PAM

Okta SSO/SAML/OIDC configuration, MFA enforcement, and user lifecycle management including SCIM provisioning Okta integration with Palo Alto User‑ID, Zscaler IdP federation, and Azure AD directory sync PAM platform familiarity and IAM integration with network access controls and Conditional Access Policies

DNS & DOMAIN SECURITY

Windows DNS / Active Directory‑integrated internal DNS, external authoritative DNS, and split‑brain DNS architectures DNSSEC implementation and DNS‑based threat detection and filtering Domain protection — monitoring for lookalike/spoofed domains and unauthorized SSL/TLS certificate issuance SSL/TLS certificate lifecycle management across internal and external services BitSight or equivalent EASM platform administration

PROOFPOINT EMAIL SECURITY

Anti‑spam, anti‑phishing, email encryption, and threat response policy management Platform administration including quarantine management, allow/block lists, and reporting Coordination with the security team on phishing investigations and incident response Experience with a comparable enterprise email security platform considered equivalent OT / BMS / IoT / PROPTECH Hands‑on experience with network design for building management systems (BMS), IoT devices, and PropTech deployments Network segmentation for OT/IT boundaries including VRF separation and secure access control Experience supporting access control, CCTV, AV systems, and sustainability technology in a commercial real estate or multi‑family residential environment Awareness of OT security principles and protocols relevant to building infrastructure

PHYSICAL INFRASTRUCTURE & DATA CENTER

Physical server management, rack installation, and data center operations including cabling, power, and cooling VMware vSphere, virtual networking and server resource management Microsoft Windows Server 2019/2022/2025 and Linux administration Microsoft Active Directory, DNS, and DHCP infrastructure management SAN/NAS storage networking and business continuity / backup technologies

PCI‑DSS & SOX COMPLIANCE

Working knowledge of PCI‑DSS and SOX requirements for network segmentation, access control, and audit logging Firewall ACL governance, policy review cycles, and evidence collection for compliance audits Experience in a regulated industry (real estate, financial services, or similar) preferred

CLOUD & HYBRID NETWORKING

Microsoft Azure — VNet design, hybrid connectivity (ExpressRoute / VPN Gateway), NSGs, Azure Firewall, and Azure AD / Entra Hybrid DNS resolution, cloud‑to‑on‑premises connectivity patterns, and identity federation Microsoft 365 and Exchange Online — network requirements, split tunneling, and connectivity optimization

EDUCATION & EXPERIENCE

8–10 years of progressive, hands‑on enterprise network engineering experience with demonstrated depth in complex, multi‑site environments At least 3 years in a senior or lead capacity managing complex, multi‑site infrastructure Proven experience serving as a technical escalation resource or informal architect on an infrastructure team Experience in Real Estate, Financial Services, or a similarly regulated industry preferred PCNSE (Palo Alto Networks Certified Network Security Engineer) strongly preferred; Panorama hands‑on experience is a firm requirement Aruba/HPE (ACSA/ACCP), Zscaler (ZCCA‑IA/PA), Azure (AZ‑104), or Okta Certified Administrator are a plus CCNP Enterprise or equivalent routing/switching certification considered; demonstrated production depth matters most Associate's or Bachelor's Degree in Computer Science, Information Technology, or related field preferred; equivalent professional experience considered

PHYSICAL REQUIREMENTS

Prolonged periods of sitting at a desk and working on a computer Must be able to lift up to 15 pounds at times

WHAT YOU CAN EXPECT

Adaptable – you are a self‑starter who’s able to quickly digest and execute new processes to work both collaboratively and independently Dynamic – you are solutions‑oriented, aim to improve processes and implement efficiency, and offer insightful feedback to improve ESRT Dependable – you take a strong sense of ownership and accountability over your work Passionate – you keep up with industry trends and are excited about the potential to propel the industry forward with a “roll‑up‑your‑sleeves” attitude Curious – you consistently look for new ways to work smarter, not just harder Ethical – you treat others with respect, act with integrity in how you perform your work, and embrace our collaborative culture Positive – you possess a service‑oriented attitude with excellent follow through

BENEFITS

Competitive base salary and bonus Health/Dental/Vision insurance Company sponsored Life, AD&D, STD (with Salary Continuation), and LTD Insurance Voluntary Enhanced LTD Program Voluntary Hospital, Accident, and Cancer Programs 401(k) with 100% match up to 5% Paid parental leave Pre‑tax transit accounts Employee Assistance Program for emotional, financial, and legal support

WELL‑BEING

Generous paid time off Flex remote work time Flex Summer Fridays Employee engagement programs Volunteer time off Continuing education Complimentary Empire State Building Observatory access Complimentary gym membership and other wellness benefits Employee Discount Programs $155,000 - $175,000 a year ESRT is an equal opportunity employer and is committed to providing a workplace free from harassment and discrimination. We celebrate the unique differences of our employees because they drive curiosity, innovation, and the success of our business. We do not discriminate based on race, religion, color, creed, national origin, sex, sexual orientation, gender identity or expression, reproductive choices, age, marital status, veteran status, disability status, pregnancy, parental status, caregiver status, genetic information, political affiliation, or any other status protected by the laws or regulations in the locations where we operate. This policy applies to all aspects of employment, including hiring, promotion, demotion, compensation, training, working conditions, transfer, job assignments, benefits, layoff, and termination. Reasonable accommodations that do not create an undue hardship for the Company are available for applicants and employees with disabilities or sincerely held religious beliefs. #J-18808-Ljbffr Empire State Realty Trust