{"id":1206431,"url":"https://alion.io/job/customized-energy-solutions-senior-network-engineer","title":"Senior Network Engineer","company":{"id":7020,"name":"Customized Energy Solutions","domain":"ces-ltd.com","url":"https://alion.io/company/ces-ltd","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":{"grade":"B","score":75,"open_postings":3,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":24,"computed_at":"2026-09-29T05:45:00Z"}},"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":["Ho Chi Minh City, Vietnam"],"countries":["VN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":14000,"max_usd":35000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":359},"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Assembly","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"BGP","optional":false},{"name":"GCP","optional":false},{"name":"OSPF","optional":false},{"name":"SLI/SLO/SLA","optional":false},{"name":"VPN","optional":false},{"name":"Ansible","optional":true},{"name":"Python","optional":true},{"name":"SOC 2","optional":true},{"name":"Terraform","optional":true},{"name":"Zero Trust","optional":true}],"status":"live","first_seen_at":"2026-09-24T22:41:27Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-09-29T16:17:32Z","board_verified":true,"closed_at":null,"days_open":5,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":5},"description":"Customized Energy Solutions (CES) is a global energy services and technology company that helps market participants operate, comply, and compete in deregulated electricity and natural gas markets. Founded in 1998 and headquartered in Philadelphia, CES works with utilities, independent power producers, energy suppliers, developers, asset owners, and investors across North America and globally.\nCES delivers market intelligence, regulatory and market design support, asset and portfolio management, retail market operations, and energy technology solutions. Our teams track and interpret ISO/RTO rules and policy developments, support resource planning and market participation, manage operational and settlement processes, and develop proprietary software platforms-including CES BLUE, GOLD, RED, GRIDBOOST, and CoMETS-that help clients manage risk, optimize performance, and respond effectively to market change.\nCES is committed to advancing transparent, efficient, and non-discriminatory energy markets while delivering practical, high-quality solutions marked by integrity, rigor, and long-term client value.\nCES has been nationally and regionally recognized for sustained growth and innovation, including listings on the Inc. 500|5000 and Philadelphia Business Journal’s Top 100 Companies, as well as a Best Places to Work designation with Hall of Fame status for five or more consecutive years.\nWith headquarters in Philadelphia and offices across the U.S., Canada, Japan, India, and Vietnam, CES offers a collaborative, flexible, and globally connected work environment for professionals passionate about the future of energy.\n The Senior Network Engineer is a hands-on technical leader responsible for designing, implementing, securing, and supporting CES’s enterprise network infrastructure across North America, India, Vietnam, and Japan. This position reports to the Senior Cloud and Network Security Architect.\nThe role serves as the primary owner of on-premises routing, switching, firewall, and network security platforms and supports their integration with CES’s cloud and hybrid environments. The successful candidate must be able to manage competing priorities, lead complex network projects, and maintain reliable day-to-day operations.\nThis position works directly with internal stakeholders and external clients to address connectivity requirements, resolve service-impacting issues, and communicate clearly with both technical and non-technical audiences.\nThis is an on-site position based at CES’s Philadelphia headquarters. A hybrid work arrangement may be considered in the future based on operational needs and demonstrated performance.\nKey Responsibilities\nNetwork Engineering\nDesign, implement, upgrade, and maintain routing and switching infrastructure across CES locations.\nManage a multi-site, multi-circuit WAN environment with appropriate redundancy, availability, and failover.\nConfigure and support advanced routing protocols, including BGP, OSPF, and EIGRP.\nEstablish and maintain network standards, configuration baselines, and change management procedures.\nLead network projects from requirements and planning through implementation, validation, and post-implementation review.\nEvaluate and recommend network technologies, vendors, and platforms based on business, security, and growth requirements.\nNetwork Security\nManage Cisco ASA, Cisco Firepower/FMC, Palo Alto Networks, and other network security platforms.\nAdminister Cisco ISE, including 802.1X, NAC, RADIUS/TACACS+, guest access, and endpoint profiling.\nConfigure and maintain F5 BIG-IP load balancers and web application firewalls.\nDevelop and maintain firewall rules, access control policies, and network segmentation strategies.\nServe as the senior escalation point for firewall and network security incidents.\nWAN and Cloud Connectivity\nManage primary and failover circuits, carrier relationships, SLA performance, and connectivity issues.\nDesign and maintain site-to-site, DMVPN, and remote-access VPN infrastructure.\nImplement QoS policies for business-critical traffic.\nIntegrate on-premises networks with AWS, Azure, and other cloud environments using Direct Connect, ExpressRoute, Transit Gateway, and IPsec VPN technologies.\nConfigure and support VPCs, VNets, security groups, routing tables, and network ACLs.\nCollaborate with Cloud and IS teams on secure and scalable hybrid network architecture.\nOperations and Support\nMonitor network availability, performance, and capacity and proactively address potential issues.\nProvide Tier 3 incident support, root cause analysis, and permanent corrective actions.\nMaintain network diagrams, IP address records, runbooks, configuration documentation, and change history.\nCoordinate with internal teams and external clients regarding connectivity and service-impacting incidents.\nManage multiple concurrent priorities and communicate status, risks, and recommendations to stakeholders.\nParticipate in a rotating on-call schedule supporting 24x7 network operations.\nMentor junior team members on networking technologies and operational practices.\n Required Qualifications\nBachelor’s degree in Information Technology, Computer Science, Network Engineering, or a related field preferred; equivalent professional experience will be considered.\n7+ years of hands-on enterprise network engineering experience in a multi-site, multi-vendor environment.\nExperience supporting globally distributed networks across remote locations and hybrid on-premises and cloud infrastructure.\nAdvanced experience administering Cisco ASA and Cisco Firepower/FMC, including policy management, NAT, IPS/IDS, and SSL inspection.\nAdvanced experience with Cisco ISE, including 802.1X, NAC, RADIUS/TACACS+, endpoint profiling, and posture assessment.\nHands-on experience with F5 BIG-IP, including LTM and ASM/WAF; AFM experience is strongly preferred.\nAdvanced proficiency configuring and troubleshooting BGP, OSPF, and EIGRP in complex, multi-path environments.\nStrong knowledge of WAN architecture, multi-circuit connectivity, redundancy, failover, and fault-tolerant design.\nHands-on experience integrating on-premises networks with AWS, Azure, or GCP, including hybrid routing, connectivity, and security.\nExperience supporting physical network equipment across multiple vendors. Experience with Palo Alto Networks or Fortinet is preferred.\nAbility to manage multiple projects and operational priorities in a fast-paced environment.\nExcellent written and verbal communication skills, including the ability to communicate with technical and non-technical audiences.\nDemonstrated client-facing experience coordinating solutions, explaining service impact, and managing high-pressure incidents\nPreferred Experience\nSD-WAN platforms such as Cisco Viptela, Meraki, Palo Alto Prisma, or comparable technologies.\nNetwork automation and infrastructure-as-code tools such as Python, Ansible, or Terraform.\nRegulated or compliance-driven environments, including SOC 2 or NERC CIP.\nEnterprise monitoring and observability platforms such as SolarWinds, PRTG, or Kentik.\nZero-trust network access or Secure Service Edge frameworks.\nPreferred Certifications\nCCNP Enterprise or Security\nCCIE\nCisco security or Firepower certification\nPalo Alto Networks PCNSE\nF5-CA or F5-CTS\nCisco ISE certification\nFortinet certification\n CES offers a competitive salary commensurate with experience, plus a performance bonus, profit-sharing, a Medical Savings Account, comprehensive health insurance, disability and life insurance, 401(k) matching, and tuition reimbursement.\nBeyond the package, here’s what you can expect at CES:\nMeaningful responsibility and the opportunity to make a real impact in dynamic energy markets.\nThe chance to learn from and collaborate with experienced professionals across global teams.\nOngoing opportunities to strengthen your technical, analytical, and leadership skills.\nA supportive culture that values initiative, accountability, and continuous professional growth.\nCustomized Energy Solutions provides equal employment opportunities to all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.\nCustomized Energy Solutions provides equal employment opportunities to all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.","description_format":"text","description_chars":8461,"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":[{"language":"English","level":"All levels","optional":false}]},"benefits":["Health insurance","Hybrid work","Life insurance"],"hiring_locations":[{"name":"Vietnam","iso":"VN","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Energy & Utilities"],"lifecycle":[{"event":"open","at":"2026-09-25T00:09:50Z"}],"liveness":{"score":82,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.82,"p_room":1,"age_days":4,"expected_fill_days":24,"reasons":["conf:18","win:early"],"computed_at":"2026-09-29T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/customized-energy-solutions-senior-network-engineer","json_url":"https://alion.io/job/customized-energy-solutions-senior-network-engineer.json","meta":{"generated_at":"2026-09-30T02:59:46Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":2255,"day_limit":5000,"remaining_today":2745,"minute_limit":60,"resets_at":"2026-10-01T00:00:00Z"}}}