{"id":2956123,"url":"https://alion.io/job/mckesson-sr-network-systems-engineer-firewall-2","title":"Sr. Network Systems Engineer, Firewall","company":{"id":4393,"name":"McKesson","domain":"mckesson.com","url":"https://alion.io/company/mckesson","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":80,"open_postings":35,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":20,"computed_at":"2026-10-29T05:49:05Z"}},"role":"Networking","role_family":"Networking","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Mississauga, Canada"],"countries":["CA"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":99100,"max":132100,"currency":"CAD","period":"year","gross":null,"usd_annual":94070},"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Platform Engineering","optional":false},{"name":"VPN","optional":false},{"name":"Zero Trust","optional":false},{"name":"Zscaler","optional":false},{"name":"Ansible","optional":true},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"GCP","optional":true},{"name":"Gmail","optional":true},{"name":"Kubernetes","optional":true},{"name":"Puppet","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2026-08-19T00:00:00Z","employer_posted_date":"2026-08-19","last_verified_at":"2026-10-30T01:26:54Z","board_verified":true,"closed_at":null,"days_open":72,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":72},"description":"McKesson is an impact-driven, Fortune 10 company that touches virtually every aspect of healthcare. We are known for delivering insights, products, and services that make quality care more accessible and affordable. Here, we focus on the health, happiness, and well-being of you and those we serve - we care.\nWhat you do at McKesson matters. We foster a culture where you can grow, make an impact, and are empowered to bring new ideas. Together, we thrive as we shape the future of health for patients, our communities, and our people. If you want to be part of tomorrow’s health today, we want to hear from you.\nAbout the Role\nMcKesson is seeking a Senior Network Security Engineer to lead the design, implementation, and governance of secure enterprise network infrastructure across cloud, data center, and hybrid environments. This role will drive the evolution of McKesson’s network security architecture through Zero Trust principles, segmentation strategies, secure access technologies, and advanced threat detection capabilities.The ideal candidate combines strong network engineering expertisewith a modern security mindset and the ability to build scalable, resilient, and compliant infrastructure that supports critical business operations.\nWhat You'll Do\nLead the design and implementation of secure network architectures using Zero Trust principles.\n\nDevelop and maintainnetwork segmentation and micro-segmentation strategies to reduce attack surface and improve security posture.\n\nPerform security architecture reviews and provide technical recommendations for infrastructure modernization initiatives.\n\nManage and optimize Palo Alto firewalls, network security policies, and perimeter defense controls.\n\nSupport Zscaler, Secure Internet Gateway, web proxy, and HPE EdgeConnecttechnologies across enterprise environments.\n\nDesign and support secure remote-access solutions including Zero Trust Network Access (ZTNA), VPN, and Network Access Control (NAC).\n\nMonitor and analyze network traffic using IDS/IPS technologies, threat detection platforms, and security analytics tools.\n\nPartner with cloud, infrastructure, and platform engineering teams to ensure secure, scalable, and compliant network services.\n\nMinimumRequirements\n7+ years of progressive experience in network security engineering, cybersecurity engineering, infrastructure engineering, or related technical roles.\n\nBachelor's degree or equivalent combination of education and experience.\n\nHands-on experience designing and supporting enterprise network security architectures.\n\nExperience administering enterprise firewallplatforms, including Palo Alto Networks.\n\nExperience with Zero Trust Architecture, network segmentation, and secure network design.\n\nExperience supporting VPN, ZTNA, NAC, or related identity-based network access technologies.\n\nExperience with IDS/IPS technologies, network traffic analysis, and security monitoring.\n\nAbility to communicate technical concepts and influence security decisions across multiple teams.\n\nPreferred Skills\nExperience with Zscaler, Secure Internet Gateway technologies, and web proxy solutions.\n\nExperience supporting HPE Aruba EdgeConnector SD-WAN environments.\n\nKnowledge of micro-segmentation technologies in multi-cloud or hybrid environments.\n\nExperience securing cloud networking environments within AWS, Azure, or GCP.\n\nKnowledge of infrastructure automation tools such as Terraform, Ansible, or Puppet.\n\nExperience with Kubernetes, container security, and modern platform engineering practices.\n\nExperience working in healthcare or other highly regulated industries.\n\nSecurity certifications such as CISSP, PCNSE, CCNP Security, CCIE Security, Zscaler certifications, or equivalent.\n\nTravel, Work Environment & Physical Requirements\nHybrid or remote work arrangementbased on business needs.\n\nLimited travel may be requiredfor team collaboration, strategic planning sessions, or project implementation activities.\n\nAbility to work on a computer for extended periods and participatein virtual or in-person meetings.\n\nWe are proud to offer a competitive compensation package at McKesson as part of our Total Rewards. This is determined by several factors, including performance, experience and skills, equity, regular job market evaluations, and geographical markets. The pay range shown below is aligned with McKesson's pay philosophy, and pay will always be compliant with any applicable regulations.In addition to base pay, other compensation, such as an annual bonus or long-term incentive opportunities may be offered. For more information regarding benefits at McKesson, please click here.\nOur Base Pay Range for this position\n$99,100 - $132,100McKesson has become aware of online recruiting-related scams in which individuals who are not affiliated with or authorized by McKesson are using McKesson’s (or affiliated entities, like CoverMyMeds or RxCrossroads) name in fraudulent emails, job postings or social media messages. In light of these scams, please bear the following in mind:\nMcKesson Talent Advisors will never solicit money or credit card information in connection with a McKesson job application.\nMcKesson Talent Advisors do not communicate with candidates via online chatrooms or using email accounts such as Gmail or Hotmail. Note that McKesson does rely on a virtual assistant (Gia) for certain recruiting-related communications with candidates.\nMcKesson job postings are posted on our career site: careers.mckesson.com.\nMcKesson is an Equal Opportunity Employer\nMcKesson provides equal employment opportunities to applicants and employees, without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability, age, genetic information, or any other legally protected category. For additional information on McKesson’s full Equal Employment Opportunity policies, visit our Equal Employment Opportunity page.\nMcKesson is committed to being an Equal Employment Opportunity Employer and offers opportunities to all job seekers including job seekers with disabilities. If you need a reasonable accommodation to assist with your job search or application for employment, please contact us by sending an email to (United States)  or (Canada) . Resumes or CVs submitted to this email box will not be accepted.\nJoin us at McKesson!","description_format":"text","description_chars":6407,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[{"name":"Canada","iso":"CA","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Health Care","Pharmaceutical Distribution","Medical Equipment Distribution"],"lifecycle":[{"event":"open","at":"2026-10-20T21:32:53Z"}],"visa":[],"liveness":{"score":9,"band":"cold","label":"Long shot","p_open":1,"p_active":0.314,"p_room":0.28,"age_days":71,"expected_fill_days":20,"reasons":["conf:0","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-29T05:49:05Z"},"pay":{"stated_usd_annual":94070,"is_top_pay":false},"html_url":"https://alion.io/job/mckesson-sr-network-systems-engineer-firewall-2","json_url":"https://alion.io/job/mckesson-sr-network-systems-engineer-firewall-2.json","meta":{"generated_at":"2026-10-30T02:45:10Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":3570,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-31T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":4393},"rest":"https://alion.io/mcp/rest/get_company?id=4393"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmckesson-sr-network-systems-engineer-firewall-2"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fmckesson-sr-network-systems-engineer-firewall-2"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fmckesson-sr-network-systems-engineer-firewall-2"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/mckesson-sr-network-systems-engineer-firewall-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmckesson-sr-network-systems-engineer-firewall-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":2956123}},{"tool":"search_jobs","arguments":{"company":"mckesson.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":2956123},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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