Information Security Engineer, Network Security Engineering

JLL empowers you to shape a brighter way. Our people at JLL are shaping the future of real estate for a better world by combining world class services, advisory and technology for our clients. We are committed to hiring the best, most talented people and empowering them to thrive, grow meaningful careers and to find a place where they belong. Whether you’ve got deep experience in commercial real estate, skilled trades or technology, or you’re looking to apply your relevant experience to a new industry, join our team as we help shape a brighter way forward. ABOUT THE ROLEThis is a hands-on, highly technical role responsible for securing JLL’s global network infrastructure. The ideal candidate brings a security-first mindset, a bias towards action, and deep expertise in Palo Alto Networks technologies alongside broad command of API security, WAF/CDN platforms, and complex troubleshooting across network and application layers. You’ll work collaboratively with global engineering, application, and security teams to ensure security controls are intelligence-driven, optimized, and aligned to industry best practices.PRIMARY RESPONSIBILITIESServe as the primary subject matter expert for Palo Alto Networks technologies (NGFWs, Cloud NGFW, Panorama), Web Application Firewall, Content Delivery Network, API Security, IDS/IPS, and DDoS preventionOwn onboarding, policy tuning, and lifecycle management for WAF and CDN platforms; lead firewall ruleset optimization, IDS/IPS tuning, and DDoS protection configurationPartner with internal teams to drive the global rollout, tuning, and operational management of URL filtering and TLS decryption across the network estateLead API security efforts — ensuring API traffic routes through security tooling, identifying vulnerabilities, and working with application teams on fixesLead troubleshooting of complex, multi-layer global network and application issues — from packet captures on inter-continental BGP topologies to WAF false-positive triagePartner with business and application teams to produce clear, actionable security documentation, change proposals, and executive-ready findingsAnalyze existing network security architectures, processes, and procedures to identify gaps and drive meaningful improvementsConfigure and report on defensive measures against advanced threat actor tactics; maintain current awareness of the evolving threat landscape and the effectiveness of our defenses against themCommunicate complex technical problems and solutions clearly to both global engineering teams and C-suite stakeholdersChampion the broader Security team’s initiatives, not just Network Security EngineeringParticipate in the maintenance and tuning of all network security technologies including WAFs, CDNs, VPNs, and application-aware firewallsLeverage and contribute to automation pipelines for global firewall rule deployment and policy management across the network estateUtilize security tooling telemetry and data collection automations to produce actionable reporting and metrics for internal teams and executive stakeholdersREQUIRED QUALIFICATIONS5+ years of hands-on network security engineering experience designing and implementing enterprise-scale security solutionsExpert-level proficiency in Palo AltoNetworks — NGFWs, Panorama policy management, and PAN-OS; PCNSE or PCNSC certification strongly preferredExpert troubleshooting skills across network and application layers, including packet capture analysis on complex, dynamically routed architecturesDeep understanding of layer 7 web application technologies and WAF/CDN platforms (e.g. Akamai, Cloudflare, Imperva, F5) — onboarding, policy tuning, break/fix troubleshooting, and operational managementSolid grounding in API security — ensuring API traffic routes through security tooling, evaluating identified vulnerabilities, and partnering with application teams to drive remediationStrong security knowledge: TLS interception, SQL injection, XSS, CSRF, command injection, LFI/RFI, rate limiting, bot detection, geo-blocking, and sinkholingIntermediate to advanced network routing and switching knowledge with focus on DNS, TCP/IP, IPsec, TLS, GRE, OSPF, and BGPProficiency in at least one scripting language (Python preferred) and familiarity with Linux/CLI toolingWorking knowledge of public cloud environments (Azure, AWS, GCP)Experience with at least one SIEM platform for log analysis, behavioral analytics, and rule tuningProven written and verbal communication skills, including presenting to both technical and non-technical audiencesProven track record of taking ownership in unstructured environments — cutting through ambiguity, making sound decisions with incomplete information, building stakeholder consensus, and delivering security improvements without waiting for top-down directionPREFERRED QUALIFICATIONSIndustry certifications: PCNSE, PCNSC, CCNP/CCIE Security, GIAC (GWAPT, GPEN, or similar)Experience building metrics pipelines and KPI reporting for security operationsFamiliarity with interconnecting disparate security technologies to solve unique application and security challengesThis position does not provide visa sponsorship. Candidates must be authorized to work in the United States without sponsorship.Expected compensation for this position:154,000.00 – 161,000.00 USD per yearFinal compensation packages are determined by various considerations including but not limited to candidate qualifications, location, market conditions, and internal considerations.Location:Remote –Houston, TXIf this job description resonates with you, we encourage you to apply, even if you don’t meet all the requirements. We’re interested in getting to know you and what you bring to the table!Personalized benefits that support personal well-being and growth:JLL recognizes the impact that the workplace can have on your wellness, so we offer a supportive culture and comprehensive benefits package that prioritizes mental, physical and emotional health. Some of these benefits include:401(k) plan with matching company contributionsComprehensive Medical, Dental & Vision CarePaid parental leave at 100% of salary Paid Time Off and Company HolidaysEarly access to earned wages through Daily PayAt JLL, we harness the power of artificial intelligence (AI) to efficiently accelerate meaningful connections between candidates and opportunities. Using AI capabilities, we analyze your application for relevant skills, experiences, and qualifications to generate valuable insights about how your unique profile aligns with the specific requirements of the role you're pursuing.JLL Privacy NoticeJones Lang LaSalle (JLL), together with its subsidiaries and affiliates, is a leading global provider of real estate and investment management services. We take our responsibility to protect the personal information provided to us seriously. Generally the personal information we collect from you are for the purposes of processing in connection with JLL’s recruitment process. We endeavour to keep your personal information secure with appropriate level of security and keep for as long as we need it for legitimate business or legal reasons. We will then delete it safely and securely.For more information about how JLL processes your personal data, please view our Candidate Privacy Statement.For additional details please see our career site pages for each country.For candidates in the United States, please see a full copy of our Equal Employment Opportunity policy here.Jones Lang LaSalle (“JLL”) is an Equal Opportunity Employer and is committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process – including the online application and/or overall selection process – you may email us at View email address on click.appcast.io. This email is only to request an accommodation. Please direct any other general recruiting inquiries to our Contact Us page > I want to work for JLL.Pursuant to the Arizona Civil Rights Act, criminal convictions are not an absolute bar to employment.Pursuant to Illinois Law, applicants are not obligated to disclose sealed or expunged records of conviction or arrest.Pursuant to Columbia, SC ordinance, this position is subject to a background check for any convictions directly related to its duties and responsibilities. Only job-related convictions will be considered and will not automatically disqualify the candidate.California Residents onlyIf you are a California resident as defined in the California Consumer Privacy Act (CCPA) please view our Supplemental Privacy Statement which describes your rights and disclosures about your personal information. If you are viewing this on a mobile device you may want to view the CCPA version on a larger device.Pursuant to the Los Angeles Fair Chance Initiative for Hiring Ordinance, JLL will consider for employment all qualified Applicants, including those with Criminal Histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles’ Fair Chance Initiative for Hiring Ordinance.Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.Accepting applications on an ongoing basis until candidate identified.SummaryLocation: Houston, TXType: Full time