{"id":3446675,"url":"https://alion.io/job/percept-solutions-senior-network-security-engineer","title":"Senior Network Security Engineer","company":{"id":3802190,"name":"Percept Solutions","domain":"percept-solutions.com","url":"https://alion.io/company/percept-solutions","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Security","role_family":"Security","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Singapore"],"countries":["SG"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":6500,"max":9500,"currency":"SGD","period":"month","gross":true,"usd_annual":88896},"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"BGP","optional":false},{"name":"DHCP","optional":false},{"name":"DNS","optional":false},{"name":"OSPF","optional":false},{"name":"TCP/IP","optional":false},{"name":"Wireshark","optional":false}],"status":"live","first_seen_at":"2026-10-29T00:00:00Z","employer_posted_date":null,"last_verified_at":"2026-10-29T00:00:00Z","board_verified":false,"closed_at":null,"days_open":3,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":3},"description":"A Minimum of 7 years in the Financial Industry, preferably in a Trading environment, is required for this position. The candidate must have experience in the Architecture, Design, Implementation, and Maintenance of Trading-related Network infrastructure, such as: Market Data Distribution Networks, low-latency, ultra-low-latency and high frequency trading networks. The candidate must have the relevant knowledge and experience with Network Security systems in a financial trading environment, including the Architecture, engineering, implementation and operations of the different aspects of Network Security in a financial trading environment.\nCore Technical Competency:\nArchitect, Design, Implement, and Troubleshoot Networks for different needs in the financial industry.\nA solid background designing, managing, and troubleshooting diverse multi-protocol, switched and routed enterprise networks.\nExpert level knowledge of Firewall technology – including Architecture, design, implementation, operations, and troubleshooting.\nThe candidate must be very comfortable configuring firewall rules and policies for both client connectivity and other security requirements of the network.\nAbility to analyze firewall logs and policies to troubleshoot client connections, and other network related security issues on the network.\nAbility to be able to troubleshoot network connectivity issues with both external and internal clients.\nThe candidate would Jointly work with the Security Architecture Manager to perform weekly pre and post implementation review of security operational activities.\nReview active firewall policies and proposed changes for insecure rule sets and coordinate with the customer to ensure rules will support intended objectives\nWork with the Security Architecture Manager and the Network Manager to track the progress of assigned projects and tasks to ensure SLA compliance.\nAbility to handle complex network engineering assignments with little supervision.\nAnalyze and resolve network issues or as determined by monitoring tools and systems.\nRespond to Trouble Tickets and perform scheduled activities related to network security.\nThe candidate must be good at documentation in general. Competent with working with network diagrams using Microsoft Visio.\nExpert level knowledge and experience with BGP and other routing protocols to be able to design and implement various connectivity solutions to clients, vendors, and the management of the Trading network environment.\nStrong ability to use packet tracing technologies to troubleshoot network issues.\nStrong knowledge of TCP, UDP, and higher layer protocols in order to understand application performance and troubleshooting application issues on the network.\nCreate and maintain network device configurations and relevant databases.\nSpecific Technology Expertise:\nStrong and extensive knowledge of complex protocols and technologies:\nRouting Protocols:\nBGP, OSPF, EIGRP, Static Routing, route-redistribution, summarization, Policy-Routing. Firewall Architecture, design, configuration, operations and Troubleshooting.\nSwitching:\nTrunking, spanning- tree, dot1q, VLANs, VTP, Ethernet switching, multi-layer switching, vPC, MLAG.\nMulticast:\nPIM, IGMP, MSDP\nNetwork Services:\nTCP/IP, UDP, HSRP, DNS, DHCP, FTP, TFTP, NAT, TACACS, SSH, NTP, SYSLOG, TELNET,\nNetwork Management/Automation:\nSNMP, SYSLOG, IPSLA, NETFLOW, Network Telemetry, and Network automation tools.\nSecurity:\nIPSEC, VPNS, Firewalls and Firewall Management and Analyzer systems, IDS systems,\nPacket Analysis:\nPICO CNEs, Wireshark, sniffers, packet captures, and packet decodes, Market Data packet decodes, FIX packet decodes.\nSpecific Technology Expertise:\nCisco and Arista switching and routing platforms.\nFortinet Firewalls and FortiManager.\nJuniper, Cisco, and Checkpoint Firewall and security solutions.\nPICO/Corvil Packet capture devices and management platforms.\nSevOne SNMP Management system.\nHPNA Network Automation system.\nIndustry Certifications:\nCisco, Arista, Juniper or Fortinet Certifications in Network Security will be a big plus\nTo apply,simply click the \"Apply\" button or send your updated profile to  \nEA Licence No.:18S9405 / EA Reg. No.:R1330864\nPerceptSolutions is expanding and actively seeking talented individuals. We encourageapplicants to follow Percept Solutions on LinkedIn at https://www.linkedin.com/company/percept-solutions/to stay informed about new opportunities and events.\nSkills\nSecurity Architecture, Telnet, Troubleshooting, Network Engineering, TFTP, EIGRP, Routing Protocols, Network Automation, Network Security, DNS, Checkpoint, BGP","description_format":"text","description_chars":4645,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Network Security","DevOps & Platform Engineering","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-10-29T08:28:30Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":3,"expected_fill_days":30,"reasons":["seen:3","velocity","win:early"],"computed_at":"2026-11-01T06:10:25Z"},"pay":{"stated_usd_annual":88896,"is_top_pay":false},"html_url":"https://alion.io/job/percept-solutions-senior-network-security-engineer","json_url":"https://alion.io/job/percept-solutions-senior-network-security-engineer.json","meta":{"generated_at":"2026-11-01T12:50:40Z","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":19796,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"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":3802190},"rest":"https://alion.io/mcp/rest/get_company?id=3802190"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fpercept-solutions-senior-network-security-engineer"},{"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%2Fpercept-solutions-senior-network-security-engineer"},{"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%2Fpercept-solutions-senior-network-security-engineer"},{"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/percept-solutions-senior-network-security-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fpercept-solutions-senior-network-security-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3446675}},{"tool":"search_jobs","arguments":{"company":"percept-solutions.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3446675},"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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