{"id":1223247,"url":"https://alion.io/job/3i-infotech-sr-network-security-engineer","title":"Sr Network Security Engineer","company":{"id":180701,"name":"3i Infotech","domain":"3i-infotech.com","url":"https://alion.io/company/3i-infotech","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Career site","truth_index":null},"role":"Security","role_family":"Security","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bengaluru, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":19000,"max_usd":42000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":12},"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"Cortex XSOAR","optional":false},{"name":"DNS","optional":false},{"name":"GCP","optional":false},{"name":"TCP/IP","optional":false},{"name":"VPN","optional":false},{"name":"Wi-Fi","optional":false},{"name":"Zscaler","optional":false}],"status":"live","first_seen_at":"2026-09-02T00:00:00Z","employer_posted_date":"2026-09-25","last_verified_at":"2026-09-28T23:50:48Z","board_verified":false,"closed_at":null,"days_open":29,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":29},"description":"Key Deliverables and Responsibilities (Mandatory)\n 10-15 years of experience with security processes and solutions.\nDetailed technical experience in the installation, configuration, and operation of high-end firewall appliances, ideally Palo Alto Networks, cisco FTD, checkpoint, Zscaler and fortinet products.\nStrong understanding of core Internet protocols, TCP/IP, computer networking, routing, and switching protocols, Network packet inspection and forensics.\nExperience with Cisco Routers, Switches, AAA, and TACACS.\nResearch, evaluate, develop, and implement security solutions and standards following industry best practices.\nWork with other teams to design, develop, and implement Enterprise Security solutions in support of development, test, and production environments.\nProvide technical security expertise and assistance to other IT and business groups.\nPerform security audits and testing; evaluate system security configurations to ensure efficacy and compliance with policies and procedures.\nDesign, develop, and maintain automation frameworks for firewall policy life cycle management - including rule creation, modification, review, cleanup, and compliance validation.\nAutomate security policy deployment and enforcement across multi-vendor firewall platforms (Palo Alto, Cisco ASA, Checkpoint, Fortinet) using APIs, SDKs, and infrastructure-as-code tooling.\nStrong understanding of current security threats, techniques, and the threat landscape; self-driven desire to research current and emerging threats.\nConceptual and practical understanding of IT Infrastructure designs, technologies, products, and services, including applicable Information Security concepts.\nAbility to work both in a group setting and independently.\nExperience with IT ticketing systems.\nStrong working knowledge of Network Security concepts and technologies: Building and maintaining network security devices for WAN, LAN, VPN, and WiFi.\nIntrusion detection and prevention systems (IDS/IPS).\nTCP/IP, computer networking, routing, and switching protocols.\nDNS, Internet policy enforcement, web content filtering.\nPreferred Certi fi cations\nPalo Alto Networks (PCNSE)\nCisco ASA / CCNP Security\nCheckpoint (CCSE)\nZscaler certified Professional\nCertified Information Systems Security Professional (CISSP)\nSANS GIAC certifications (GCIA, GCFW, GPEN, or similar)\n AWS/Azure/GCP Security Specialty (cloud security automation)\nPalo Alto XSOAR Engineer or similar SOAR platform certi fi cation\nThis is a contractor position for bangalore/Noida no remote","description_format":"text","description_chars":2538,"description_truncated":false,"requirements":{"experience_years_min":10,"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","IT Outsourcing & Dedicated Teams","Business Process Outsourcing (BPO)","Cloud Consulting & Migration"],"lifecycle":[{"event":"open","at":"2026-09-25T13:02:17Z"}],"liveness":{"score":51,"band":"ok","label":"Likely open","p_open":0.9,"p_active":0.755,"p_room":0.75,"age_days":29,"expected_fill_days":30,"reasons":["conf:53","velocity","win:late","comp:brand"],"computed_at":"2026-10-01T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/3i-infotech-sr-network-security-engineer","json_url":"https://alion.io/job/3i-infotech-sr-network-security-engineer.json","meta":{"generated_at":"2026-10-01T11:21:32Z","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":2952,"day_limit":5000,"remaining_today":2048,"minute_limit":60,"resets_at":"2026-10-02T00:00:00Z"}}}