{"id":164251,"url":"https://alion.io/job/five9-network-engineer-ii","title":"Network Engineer II","company":{"id":58571,"name":"Five9","domain":"five9.com","url":"https://alion.io/company/five9","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":80,"open_postings":76,"ghost_share":0.25,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":76,"computed_at":"2026-11-05T05:54:30Z"}},"role":"Networking","role_family":"Networking","seniority":"middle","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Ramon, United States","United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":82600,"max":230800,"currency":"USD","period":"year","gross":null,"usd_annual":230800},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Ansible","optional":false},{"name":"AWS","optional":false},{"name":"BGP","optional":false},{"name":"Calico","optional":false},{"name":"CI/CD","optional":false},{"name":"GCP","optional":false},{"name":"Grafana","optional":false},{"name":"Kubernetes","optional":false},{"name":"Linux","optional":false},{"name":"MPLS","optional":false},{"name":"OpenStack","optional":false},{"name":"OSPF","optional":false},{"name":"Prometheus","optional":false},{"name":"Python","optional":false},{"name":"SLI/SLO/SLA","optional":false},{"name":"Terraform","optional":false},{"name":"VPN","optional":false}],"status":"live","first_seen_at":"2026-07-10T17:45:45Z","employer_posted_date":"2026-09-21","last_verified_at":"2026-11-05T12:00:36Z","board_verified":true,"closed_at":null,"days_open":117,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":117},"description":"Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide. \nLiving our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves. \nTo complement our rapid growth, we are sourcing a Network Engineer II to operate in a 24/7 Software-as-a-Service (SaaS) environment, taking ownership of complex LAN infrastructure initiatives and driving operational excellence across Cisco Nexus, Palo Alto, and F5 platforms. You will lead projects, own end-to-end troubleshooting, drive automation strategy, and provide technical leadership during incidents - while mentoring junior engineers and representing the network domain to senior stakeholders.\nTroubleshooting & Incident Response\nOwn end-to-end troubleshooting of complex LAN connectivity, firewall policy, and load balancer issues, and drive resolution with customers and internal teams.\nConduct in-depth analysis of network incidents, identify root causes, and implement preventive measures to reduce repeat occurrences.\nLead and coordinate responses to network and security incidents, ensuring timely resolution and minimizing potential impacts.\nParticipate in on-call rotation following the Sun Model schedule; provide technical leadership during outages and lead post-incident root cause analysis and corrective action planning.\nLead the review, analysis, and execution of network change requests within the data-center fabric domain, ensuring adherence to change management and risk-mitigation standards.\nProjects & Architecture\nLead and drive LAN infrastructure projects involving Cisco Nexus switching, Palo Alto firewalls, F5 load balancers, and NDFC fabric management.\nPartner with cross-functional stakeholders to design and deliver next-generation data-center fabric architectures, leveraging VXLAN, Cisco Nexus Dashboard, Kubernetes networking (Calico), and AI/ML-enabled networking.\nManage and operate data-center fabric services across hybrid and multi-cloud environments - on-premises Cisco Nexus infrastructure, GCP, and AWS.\nPerform traffic engineering and capacity planning to guide long-term infrastructure investments.\nDevelop and maintain technical roadmaps, architecture standards, and configuration policies for LAN, firewall, and load balancer environments.\nManage and maintain existing network infrastructure (Nexus, Palo Alto, F5), ensuring reliability, performance, and equipment lifecycle planning.\nMonitoring & Observability\nDevelop and report operational and performance metrics using observability platforms including Prometheus, Grafana, and SolarWinds.\nDefine, measure, and report site reliability using SLI/SLO\nMaintain operational focus on the data-center fabric while coordinating cross-team efforts with network security and load balancing functions to ensure end-to-end service reliability.\nAnalyze historical network incidents to identify systemic issues and inform preventive engineering.\nAutomation\nDrive automation strategy and execution using Ansible, Terraform, Python, and CI/CD pipelines for provisioning, configuration, and monitoring.\nImplement automated remediation to prevent recurrence of known issues.\nDemonstrate and scale a culture of automation across engineering and operations teams.\nTrack and manage projects, processes, and technology initiatives across the team, ensuring alignment, visibility, and timely execution.\nMaintain runbooks, topology diagrams, and SOPs.\nSecurity\nManage overall network security including routing policies, Palo Alto firewall rules, and access controls to protect infrastructure.\nOwn all operational aspects of network security infrastructure - OS maintenance, vulnerability management, capacity planning, lifecycle management, and certificate administration.\nRequirements\nBachelor's degree in computer science or a related technical field preferred, or equivalent practical experience.\nA minimum of 5+ years of experience in medium-to-large networks, IP routing, switching, and security principles in a production SaaS or enterprise environment, including experience as a technical subject matter expert.\nDeep hands-on expertise with Palo Alto firewalls - security policy design, Panorama management, Global Protect VPN, and threat prevention.\nAdvanced experience with F5 BIG-IP - LTM, GTM, iRules, SSL offloading, and application delivery configurations.\nExpert-level knowledge of Cisco Nexus 9k/7k/5k/2k, NX-OS, and NDFC, including VXLAN/EVPN fabric deployments.\nExtensive hands-on experience with software-defined networking (SDN) - OpenStack Neutron and Calico (Kubernetes).\nHands-on skills with Cisco IOS required; Nexus OS and NDFC expertise required.\nProven experience automating infrastructure processes and deployments using Ansible, Terraform, Python, and CI/CD pipelines, with demonstrated ability to drive and scale a culture of automation.\nDemonstrated expertise in LAN protocols and technologies - VXLAN, EVPN, OSPF, BGP, MPLS, and STP/RSTP - with strong hands-on experience with dynamic routing protocols, particularly BGP in data-center fabric environments.\nExperience implementing solutions involving large data centers, inter-business routing plans, site-to-site IPSec VPNs, firewalls, and MPLS VPNs.\nStrong experience with network monitoring and observability tools - SolarWinds, Prometheus, Grafana, NetFlow, SNMP, and packet brokers.\nDemonstrated experience with incident response, root cause analysis, change management, and operational governance; experience defining, measuring, and reporting reliability using SLI/SLO metrics.\nKnowledge of Linux network functions and SaaS/cloud-based environments.\nKnowledge of AWS and GCP cloud platforms, including cloud networking concepts such as VPCs, security groups, transit gateways, and cloud-based load balancing.\nProven ability to mentor engineers, lead technical projects independently, and manage multiple initiatives in parallel, with demonstrated project management skills.\nExcellent communication skills, both oral and written; ability to clearly represent technical domains and team outcomes to senior leadership and non-technical stakeholders.\nNice to Have\nTelecommunications technologies - VoIP, RTP, SIP peering/trunking, and SBC.\nWork Location: This role is fully remote for candidates who reside outside the 30 mile radius of one of our offices. For candidates who reside within a 30 mile radius of one of our offices, this role is Hybrid and would require 3 days a week (T, W, TH) in office. \nAs part of our continued commitment to diversity, equity, and inclusion, Five9 supports pay transparency during the entire recruitment process. Actual compensation packages are based on several factors that are unique to each candidate including, but not limited to: skill set, depth of experience, certifications, and specific work location. The range displayed reflects the minimum and maximum target for new hire salaries for the job across the United States. Your recruiter can share more about the specific compensation package during your hiring process.\nAdditionally, the total compensation package for this position may also include an annual performance bonus, stock, and/or other applicable incentive compensation plans.\nOur total reward package also includes:\nHealth, dental, and vision coverage, beginning on the first day of employment. Five9 covers 100% of the employee portion of the health, dental and vision coverage and shares a high portion of the dependent cost. We also offer Short & Long-Term Disability, Basic Life Insurance, and a 401k saving plan with employer matching.\nAccess to an innovative mental health support platform that offers personalized care and resources in areas such as: therapy, coaching and self-guided mindfulness exercises for all covered employees and their covered dependents.\nGenerous employee stock purchase plan.\nPaid Time Off, Company paid holidays, paid volunteer hours and 12 weeks paid parental leave.\nAll compensation and benefits are subject to the requirements and restrictions set forth in the applicable plan documents and any written agreements between the parties.\nThe US base salary range for this role is below.\n$82,600—$230,800 USD\nFive9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer. \nFive9 is committed to providing reasonable accommodations for qualified individuals with disabilities throughout the application and interview process. If you need assistance or an accommodation due to a disability, please contact us at  to request an accommodation. Requests will be handled confidentially and in accordance with applicable law.\nView our privacy policy, including our privacy notice to California residents here: https://www.five9.com/pt-pt/legal. \nNote: Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.","description_format":"text","description_chars":9225,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["401k plan","Equity","Life insurance","Parental leave"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Conversational AI","AI Agents","Contact Center Software"],"lifecycle":[{"event":"open","at":"2026-07-10T17:45:45Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 14 · green card filings: 8","filings_12m":14,"filings_prev_12m":11,"green_card_filings_12m":8,"median_offered_wage_usd":141136,"route":null,"cap_exempt":false,"checked_at":"2026-10-29T16:27:21+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":4}],"liveness":{"score":24,"band":"cold","label":"Long shot","p_open":1,"p_active":0.68,"p_room":0.36,"age_days":117,"expected_fill_days":76,"reasons":["conf:4","velocity","win:tail","crowd:"],"computed_at":"2026-11-05T05:54:30Z"},"pay":{"stated_usd_annual":230800,"is_top_pay":true},"html_url":"https://alion.io/job/five9-network-engineer-ii","json_url":"https://alion.io/job/five9-network-engineer-ii.json","meta":{"generated_at":"2026-11-05T13:58:49Z","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":17940,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-06T00:00:00Z"}},"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":58571},"rest":"https://alion.io/mcp/rest/get_company?id=58571"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ffive9-network-engineer-ii"},{"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%2Ffive9-network-engineer-ii"},{"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%2Ffive9-network-engineer-ii"},{"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/five9-network-engineer-ii\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ffive9-network-engineer-ii"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":164251}},{"tool":"search_jobs","arguments":{"company":"five9.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":164251},"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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